Device for production of plastic receptacle coated with diamond-like carbon film

FIELD: technological processes.

SUBSTANCE: electrode that surrounds the receptacle and forms part of pressure reduction chamber intended for receptacle installation and electrode that is installed next to receptacle neck above its opening are installed one opposite to each other and separated with insulating body. This body forms part of pressure reduction chamber. Inlet tube of gas is made of insulating material for guiding gas that is supplied to the mentioned chamber with the help of supply facility of gas that is transformed into plasma for application of diamond-like film of coating onto receptacle wall internal surface. Tube is installed on facility for exhaust of gas that is available in pressure reduction chamber from the bottom part of receptacle part with opening. High-frequency supply facility is connected to electrode that surrounds receptacle, therefore, it is possible to freely ignite plasma and execute discharge.

EFFECT: stabilisation of plasma discharge and prevention of dust adhesion to electrode.

16 cl, 12 dwg, 2 ex, 2 tbl

 

The present invention relates to a device for manufacturing a plastic container having an inner surface coated with diamond-like carbon (APA) film.

In Japanese laid patent application No. HEI 8-53117 described a device for manufacturing a plastic container coated with carbon film covering the inner surface of the wall of the plastic packaging carbon film.

As shown in Fig this application, this device has a hollow outer electrode 112 made with the possibility of imprisonment in its packaging, and includes a cavity having a shape approximately similar to the outer shape of the concluded container 120, the insulating element 111, which insulates the outer electrode and creates contact with the neck of the container when the container is enclosed within the cavity of the outer electrode is grounded internal electrode 116, which is inserted into the container enclosed within the cavity of the outer electrode, Golovino part 120A of the container, pumping means 115, communicating with the interior cavity of the outer electrode to drain from the cavity of the electrode, feed means 117, which delivers the gas into the container enclosed within the cavity of the outer electrode, and the source 114 of the high frequency power source RF energy), which is connected to the external electrode. This device generates a ug is irodou film by means of chemical deposition from the gas phase (HALL) plasma ensuring the formation of plasma between the outer electrode and the inner electrode.

Grounded internal electrode is held in a container that is enclosed in the outer electrode of the neck of the container. The source gas passes through the inlet tube gas, also serving as an internal electrode, and after blowing about the bottom within the container flows through the housing portion, shoulder portion and a hole, and then comes out of the container and is released to the outside of the cavity. Thus, between the inner electrode, is inserted into the container, and an outer electrode potential difference is created which generates plasma by excitation of a source gas flowing through the inside of the container.

In the same device, since the internal electrode is introduced into the container, the distance between the outer electrode and the inner electrode is small, and the plasma is generated inside the container stable manner. However, the internal electrode is fully inserted into the creation of a plasma source gas, and dust that is generated due to decomposition of the source gas, sticks to the outer surface of the inner electrode. In addition, in accordance with the fact that the cross-sectional area in a horizontal cross-section relative to the vertical axis of the container decreases sharply in the shoulder of the container, the source gas flowing through the inside of the container, has more pressure gas and a high density plasma in the shoulder part. Thus, a large amount of dust sticks to the outer surface of the inner electrode around the shoulder of the container, where the plasma density is high.

Therefore, in the same device, although the number of processes of coating a little, by repeating the coating process, which results in a stable discharge plasma on the inner electrode accumulate dust, so that the plasma generation and plasma discharge becomes unstable due to the deterioration of the functioning of the internal electrode. When this is achieved the kind of status, the formation of the UPA film becomes impossible. Accordingly, to prevent the imperfect creation of the plasma and the establishment of unstable discharge after the process of coating a fixed number of times, it is necessary to carry out the cleaning process, which helps to remove dust sticking to the inner electrode. However, in the same device having a construction in which the dust adheres to the inner electrode, the cleaning process should be performed frequently, and this makes it impossible to achieve a better performance. Based on the above facts, we note that to obtain a stable PLAZMENNOGO the discharge is impossible to separate the problem of adhesion of dust from design requirements, in which the distance between the outer electrode and the inner electrode is small, and the technology which would solve both of these problems simultaneously, has not yet been created. In addition, needless to say, should guarantee the same kislotonepronitsaemost, like plastic containers, covered with ASD film and produced by means of a known device having the internal electrode.

The purpose of the present invention is to create a stable plasma and conducting continuous discharge while preventing adhesion of dust to the electrode located at Golovino part, without the aid of the electrode, is made as an inner electrode inside the container. Ensuring the compatibility of such design features, you can schedule the reduction of the treatment process, and this enables to increase the intensity of the operation.

In addition, the purpose of the present invention is the design of the electrode located at Golovino part of ensuring the stability of the plasma discharge.

At the same time, the purpose of the present invention is to provide a uniform distribution of the film in the circumferential direction of the side surface of the container even. The reason for this is that the internal electrode of the known device is located so that the th Central axis aligned with the Central axis of the container, and when these axes are not aligned with each other due to small errors in the setup, create an uneven distribution of plasma in the circumferential direction of the side surfaces of the packaging and there are small non-uniformity of film (color unevenness) in the circumferential direction of the side surface of the container.

In addition, the purpose of the present invention is to provide location, preferred for the electrode located at Golovino part or annular end or tubular end, to stabilize the plasma discharge.

In addition, the purpose of the present invention is to develop an optimal intake tube, the source gas, which does not prevent the creation of plasma and continuous discharge and is not damaged even when it appears within the field of plasma.

The purpose of the present invention is to provide uniformity UPA films by locating the inlet tube, the source gas with the provision of free introduction to the depth at which the tube reaches the bottom of the container and extract the tube from this depth, and forming a flow of gas without the formation of stagnant zones of the vent holes of the inlet tube, the source gas into the exhaust hole for spraying the source gas across the inner surface of the wall of the container.

The purpose of the present invention SOS is the RTO to ensure uniform dispersion of the source gas within the container and prevent adhesion of dust to the intake tube, the source gas by providing tools insertion and extraction of the inlet tube, the source gas. Namely, because it is a design in which dust does not stick to the electrode located on the side Golovino part, the introduction of tools insertion and extraction of the inlet tube, the source gas makes optional the process of cleaning the intake tube, the source gas.

Trying to prevent is caused by adhesion of dust to the inner electrode introducing instability in the creation of plasma and continuous course of plasma discharge, the authors of the present invention found that it is possible to solve the above problems by providing an electrode located at Golovino part, which is converted to the surrounding container electrode on the outside of the container, not allowing for the internal electrode is located in the container.

According to the present invention a device for manufacturing a plastic container coated with diamond-like carbon film containing surrounding the container electrode, forming one part of the chamber to reduce the pressure in which is enclosed with a plastic container, and an electrode located at the neck of the container over its hole, and the surrounding container electrode, located at the neckline, made facing each other and separated by an insulating body forming part of the chamber to reduce pressure, means for supplying the source gas converted to plasma on what I cover the inner surface of the wall of the container diamond-like carbon film, containing the inlet tube, the source gas made of an insulating material and located in the chamber to reduce the pressure for introducing the source gas into the container, means for pumping gas in chamber of reduced pressure from the opening of the container, and means for supplying high frequency, connected to the surrounding container electrode.

The above-described device according to the invention provides the possibility of plasma discharge stable way and impedes the adhesion of dust to the electrode. Ensuring the compatibility of these conflicting facts, you can schedule the reduction of the volume of the cleaning process and to increase the productivity of the device. Of course, it is guaranteed that kislotonepronitsaemost will be the same as kislotonepronitsaemost plastic containers, covered with ASD film and produced by means of a known device having the internal electrode.

The electrode situated at the mouth of the container, can be provided with an annular part having an inner bore diameter essentially equal to the diameter of the hole of the container, and the opening end of the annular portion is located near the hole of the container and aligned coaxially with him.

The electrode situated at the mouth of the container, may have a tubular portion, passing down from the upper part of the chamber reduced the Oia pressure to the position above the opening of the container and having an end, connected with the inlet tube, the source gas and designed for insertion into the tubular portion of the source gas fed by the means for supplying the source gas.

Data an embodiment provides the ability to create a stable plasma discharge simultaneously with a more uniform distribution of the film during its formation in the circumferential direction of the side surface of the container. In particular, it has been possible to improve the properties of the color non-uniformity in the circumferential direction of the side surface of the container in Golovino part.

The electrode situated at the mouth of the container, may be in contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

The end of the ring portion may be in contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

The end of the tubular part may be in contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

The inlet tube, the source gas can be made of a polymeric material, such as Teflon, or similar material having an insulating property and TEPLOS what honostly, sufficient to withstand the impact of the plasma, or made of a ceramic material such as alumina, and similar material having an insulating property.

The inlet tube, the source gas can be performed with the free insertion through hole packaging in a recessed position with reaching the bottom of the container or removing the tube from this recessed position.

This option provides the ability to spray source gas across the inner surface of the wall of the container with the formation of a homogeneous APA film.

The device may further comprise means for introducing and extracting the inlet tube, the source gas is designed to place the intake tube into the condition inside the packaging with the introduction of the source gas and the placement of the inlet tube is extracted from the container when the formation of plasma.

This version of the runtime provides the ability to prevent adhesion of dust to the intake tube of the source gas, while ensuring that the source gas is uniformly sprayed inside the container, and makes optional the process of cleaning the intake tube, the source gas. Because there is no adhesion of dust contamination to the inner electrode, the present invention may be useful, in particular, in the manufacture of containers for apitco is.

Hereinafter the invention is described in more detail with reference to the accompanying drawings, which depict the following :

Figure 1 is a schematic view of a concrete variant of the proposed device for manufacturing plastic containers.

Figure 2 - schematic view of a variant means, in which between the outer wall of the container and the inner wall of the surrounding container electrode in the device according to figure 1 provides a gap.

Figure 3 is a schematic view illustrating another specific variant of the proposed device.

4 is a schematic view of a variant of the device, in which between the outer wall of the container and the inner wall of the surrounding container electrode in the device according to figure 3 provides a gap.

5 is a view illustrating the flow of gas from the openings of the containers in the outlet using the device according to figure 3.

6 is a schematic view illustrating another variant implementation of the inlet tube, the source of the gas in the device according to figure 1.

7 is a schematic view illustrating another variant implementation of the inlet tube, the source of the gas in the device according to figure 3.

Fig - known device for manufacturing a plastic container coated with ASD film.

Fig.9 - types, illustrating the condition of adhesion of dust on the tubular part (in the sphere of sesivumelo means, made of stainless steel) electrode located on the side Golovino part.

Figure 10 - types, illustrating a comparison of a plastic container, covered with ASD film, when the film formation is repeated 15 times in the same package in a special case for No. 1, and plastic containers, covered with ASD film, when the film formation is repeated 15 times in the same container under the conditions of comparative example 1.

11 is a view illustrating the name of each part of beverage containers.

Fig - schedule, on which the color unevenness according to a special variant of implementation No. 1 and comparative example 1 in the circumferential direction in Golovino part of the packaging displayed the values of b*.

Below are detailed descriptions of illustrating specific embodiments of the present invention, but should not assume that this invention is limited to these descriptions.

First of all, with reference to figures 1 to 7 will be described the construction of the apparatus for manufacturing a plastic container coated with ASD film corresponding to the present invention. Further, the same symbols are used to denote identical elements in the drawings. As shown in figure 1, the device for manufacturing plastic containers contains a neighborhood is in store containers electrode 3, which forms one part of the chamber 6 of the pressure reduction, which contains a plastic container 7 and the electrode 5, located at the neck of the container above the opening 10 of the container 7. The electrodes 3 and 5 facing each other and separated by an insulating body 4, which forms a part of the chamber 6 of the pressure reduction. The device has means 18 supply the source gas, which supplies the source gas converted to plasma for coating the inner surface of the wall of the plastic container 7 APA film, and includes an inlet tube 9 of the injected gas, made of an insulating material and located in the chamber 6 reduced pressure for the introduction of the source gas fed into the chamber 6 of the reduced pressure inside the plastic container 7, a suction means 21, which produces the gas inside the chamber 6 of the pressure reduction, up from the hole 10 of the plastic container 7 and the tool 14 supply of high frequency, is connected to the electrode 3.

The electrode 3 is composed of the upper electrode 1 and lower electrode 2, which can be attached to the upper electrode 1 and disconnected from him. To ensure air leakage between the upper electrode 1 and lower electrode 2 is located a sealing ring 8 round cross-section. The upper electrode 1 and lower electrode 2 create a state of conductivity, forming one body as the surrounding Thar the electrode. Surrounding the container electrode 3 has a construction which is divided into the upper electrode 1 and lower electrode 2 to provide openings for making plastic containers 7 within the surrounding container electrode 3. Figure 1 shows that the container electrode 3 is divided to form two upper and lower parts, but may be split into three - the upper, middle and lower part for making them in containers, or division of the above-mentioned electrode can be vertical. Surrounding the container electrode 3, as shown in figure 1, given such a form that it enters into the container 7, except Golovino part of the packaging. The reason for this is that this arrangement reduces the formation of UPA film on the inner surface of the wall Golovino part. Accordingly, when the film AAP formed on the inner surface of the wall Golovino part, you can shape that contributes to the conclusion of the container as a whole. In addition, to adjust the area of the formation of the film can take the form of contributing to the conclusion of the packaging, except Golovino part of the container and one part Golovino part. In addition, in connection with the inner wall of the cavity, which is enclosed container, it should be noted that, as shown in figure 1, the outer container electrode 3 given the shape that is similar to the container so that the outer wall of the container and the inner wall is ka cavity almost touch, but because of the application of a suitable voltage automatic offset to each part of the inner wall of the container when the outer container electrode is supplied a high frequency, as shown in figure 2 or figure 4, the outer container electrode 3 is not always necessary to give such container shape. Figure 2 and 4 show that between the outer wall Golovino part of the container and the inner wall of the surrounding container electrode includes a gap.

The electrode 5 located at the neckline, an electrode which is facing the electrode 3. Accordingly, because we need to establish the condition of the insulation between the electrodes 5 and 3, between these electrodes is provided by an insulating body. The electrode 5 is made in such a way that allows its installation over the hole 10 of the packaging. At the same time, the entire electrode 5 or a part thereof preferably is located(a) near hole 10 (directly above it). This is because the distance from the electrode 3 is made smaller. In addition, the shape of the electrode 5 can be arbitrary, but, as shown in figure 1, this electrode is preferably provided with an annular part 11 having an inner diameter of the hole is about the same as the diameter of the holes of the plastic container 7. The electrode 5 is preferably such that the opening end of the annular part 11 coaxially aligned CTE is rtiu 10 of the plastic container 7 and is located near hole 10 of the plastic container 7. The ring part is formed to ensure it is possible to prevent the increase of resistance to pumping due to the presence of the electrode located on the side Golovino part. In addition, the electrode 5 is preferably grounded.

In the present invention, as shown in figure 3, the electrode 5 may be made with a tubular part 5A, which runs from the top of the camera, reducing the pressure to a position above the opening 10 of the plastic container 7, the source gas supplied by the tool 18 supply the source gas is introduced into the tubular part 5A, and the end 5b of the tubular portion 5A is connected to the intake pipe 9 of the source gas. In addition, the end 5b of the tubular portion 5A is preferably about holes 10 (directly above it) of the plastic container 7. In the case shown in figure 3, the end 5b forms krasivaya means for connecting a tubular part and an inlet tube, the source gas. By creating a design of this type, it is possible to make the tubular part 5A functioning as one part of the inlet tube, the source gas when the inlet tube, the source gas as an electrode 5 is about the holes 10. In addition, as described layout of the annular part 11, the Central axis of the tubular portion 5A is preferably aligned with the Central axis of the container. This prevents ek is centricity plasma, created inside the container, and makes the intensity of the plasma is uniform in the circumferential direction of the container.

The electrode 5 or the end of the ring part 11 shown in figure 1, or the end of the tubular part shown in figure 3, is preferably introduced into contact with the gas stream generated from a position near the hole 10 of the plastic container 7 to the outlet opening 23 of the chamber 6 reduced pressure by operating the suction means 21. As shown by the arrow in figure 5, this gas flow is formed inside the container and inside the cavity 40. When the contact electrode 5 or the end of the tubular part with the gas flow becomes possible to easily generate the plasma and to stabilize the discharge. As for creating a plasma and stabilize the discharge in such a way that the authors of the present invention believe that this is due to the formation of the conductive body by the flow of gas converted into plasma. In this regard, we note that the cavity 40 preferably has a shape which is not conducive to the formation of the gas stream and does not contribute to the creation of so-called dead zones, and by adding cavity 40 forms, which is not conducive to the creation of stagnant zones, it becomes possible extension possible layout area of the electrode located on the side Golovino parts or electrode end of the tubular part.

Than the s with the known device, similar to that shown in Fig and in which the inner electrode is inserted into the container, in the present invention, the electrode located at the neckline, is located above the opening of the container as the front electrode to the outside packaging of the electrode. The present invention provides the ability to create plasma and continuous discharge, by placing an electrode located at the mouth over the hole packaging and not providing an internal electrode is located inside the container. Even when the distance between the electrode and the surrounding containers electrode becomes large, the plasma is still generated when the gas, which must be converted into the plasma exists in the form of a continuous body under reduced pressure. In this regard, we note that, by placing an electrode located at the mouth over the hole, when a plasma source gas that is released from the hole packaging has a high gas pressure and high density plasma, it is possible to extend the plasma discharge and to improve the homogeneity of the discharge, in particular, in Golovino part. Since the electrode located on the side Golovino part, not completely passes inside the plasma, the adherence of the dust is insignificant, and in contrast to the known device, in which the discharge becomes unstable after approximately 1000 times conduct discharge, in condition the device according to the present invention is the creation of the plasma and the continuity of discharge remained stable even after the discharge of 20,000 times. Accordingly, it is possible to extend the interval in which the process of cleaning of the electrode, and this makes it possible to increase the intensity of the operation.

In addition, supplying the surrounding container electrode of the annular part 11, as shown in figure 1, or tubular part shown in figure 2, can be reduced to mitigate the effect of the mechanical errors of the device and to reduce the non-uniformity of the plasma discharge in the circumferential direction of the side surface of the container, and this provides an opportunity to reduce unevenness (uneven thickness and uneven colour distribution of the film, in particular in Golovino part.

In addition, the material surrounding the container of the electrode and the electrode located on the side Golovino part, is preferably stainless steel or aluminum.

The insulating body 4 performs the function of forming the insulated state between the electrode 5 located on the side Golovino part, and the surrounding containers electrode 3, and also performs the function of forming one part of the chamber 6 of the pressure reduction. The insulating body is made, for example, PTFE. The chamber 6 of the pressure reduction is formed by assembling the surrounding container electrode 3, the insulating body 4 and the electrode 5, which is located at the neck, with the provision of mutual vazduhoplovni is emote. Namely, in order to guarantee air leakage between the outside container electrode 3 and the insulating body 4 is located a sealing ring of round cross-section. In addition, to ensure air leakage between the insulating body 4 and the electrode 5 located on the side Golovino part, there is also a sealing ring of round cross-section (not shown). In the device according to figure 1 provides design, which electrode 5 located on the side Golovino part is located above the insulating body 4 and the electrode 5 is a front electrode, which is converted to the surrounding container electrode 3 and due to its size can be set freely, the size of the element, formed of an insulating body 4 and the electrode 5, as shown in figure 1, can be fixed, and the insulating body can be made large when the electrode 5, is reduced at part, due to this size. Alternatively, the insulating body can be made small enough that it served as the only hard insulator when the electrode 5, an enlarged just in part, due to this size. Inside the element, formed of an insulating body 4 and the electrode 5, is formed a cavity 40, which together with the cavity inside the plastic container 7 forms the floor is here reduced pressure. The chamber 6 of the pressure reduction and represents that cavity reduce pressure.

The inlet tube 9 source gas is made with a hollow (cylindrical shape). The inlet tube 9 source gas is provided inside the chamber 6 of the pressure reduction so that it is located inside the plastic container 7 with the free insertion and extraction through the opening 10 of the container. Now it should be noted that the inlet tube 9 of the source gas based on the camera 6 reduce pressure. As a way of making a support note that the inlet tube 9 source gas may be based, for example, to the electrode 5 located on the side Golovino part, as shown in figure 1, or the intake pipe 9 of the source gas can rely on the tubular part 5A through sesivumelo means, as shown in figure 3. In addition, the lower end of the inlet tube 9 source gas made one vent hole (9a), which communicates with the spaces inside and outside of the inlet tube 9 source gas. In addition, instead of having to provide for one vent hole at the lower end, you can create a set of vent holes (not shown)passing through the space inside and outside of the inlet tube 9 source gas in radial directions. The inlet tube 9 source gas is connected to oncom pipe means 18 supply the source gas, which communicates with the internal space of the inlet tube 9 source gas. In addition, the device is designed so that the source gas is sent inside the inlet tube 9 source gas by pipeline, you can blow out the inside of the plastic container 7 through the vent hole 9a. The reason inlet tube 9 source gas made of an insulating material, is that it makes it possible to reduce the adherence of the dust contained in the feed gas to the outer surface of the inlet tube 9 source gas. In the known technical solutions, because the inlet tube, the source of gas, such as that shown in Fig, also used as the internal electrode, the majority of the ion source gas converted to plasma collide with the inner wall of the container, and one part of the ion source gas, being about the internal electrode comes into contact with the internal electrode, which leads to the formation of dust source gas, which adheres to the inner electrode. This dust is an insulating material that insulates the inner electrode and destabilizes the plasma discharge. In the present invention, since the inlet tube, the source gas made of an insulating material, the adherence of the dust source gas reduces the W and the destabilization of the plasma discharge does not occur even when, for example, stick the dust.

The inlet tube 9 source gas preferably made of polymeric material having an insulating property and sufficiently heat resistant to withstand exposure to plasma. In this regard, we note that as examples of the polymer material can be used polytetrafluoroethylene, polyamide, polyimide and peek. Alternatively, the inlet tube 9 source gas preferably made of a ceramic material having an insulating property. As examples of the ceramic material can be used alumina, zirconium dioxide, titanium dioxide, silica and quartz glass.

Even when part of the tip of the inlet tube 9 source gas is inserted through the hole of the plastic containers in position about Golovino part, as shown at 6 or 7, it becomes possible to supply the source gas into the interior of the plastic container. The main point of this method is that the adherence of the dust almost never happens, because the inlet gas tube made of Teflon or similar material, not in the part of the device, where the plasma concentration is greatest, namely in the part where just before going on the t adhesion plenkoobrazovatel dust. The number of adherent dust is reduced much more than in the case of a special case for No. 3 in table 2. However, in the study of kislotonepronitsaemost under the same conditions of formation of the film is that the tip of the inlet tube, the source gas is preferable to place with the opportunity to freely fitted in the recessed position and extract from this position, with the bottom part of the hull through the hole of the plastic container, as shown in Fig.1-4. The reason for this is that you can form a non-turbulent flow of the source gas from the bottom of the container to the hole, as shown in figure 5, and this allows a more uniform formation of the UPA film on the inner surface of the wall of the container.

In addition, in the device according to the present invention the inlet tube, the source gas is inserted into the plastic container at the time of introduction of the source gas, and can provide a means of insertion and extraction of the inlet tube, the source of gas (not shown in the drawings) for placing the inlet tube of the source gas in the position in which it is abstracted from plastic containers, when plasma is created. The adherence of the dust does not occur because the means of insertion and extraction of the inlet tube, the source gas give the possibility of the ability to distribute the source gas to form the film ASD across the inside of the plastic container, and also give the opportunity to remove the intake tube, the source gas of the plasma at the time of formation of the film. In addition, when provided by means of insertion and extraction of the inlet tube, the source gas for placing the inlet tube of the source gas in the position in which it is abstracted from plastic containers, when you create a plasma around the holes of the containers preferably include a valve (shutter) (not shown), which can be freely opened and closed with the aim of closing part being about the mentioned holes.

In addition, for burning dust adhering to the intake pipe 9 of the source gas made of a ceramic material, in the proposed device can provide a means of burning dust (not shown). There are two or more inlet tubes of the source gas, which can be arranged in alternating order; after the prescribed number of cycles required for the formation of a film connecting structure, consisting of the inlet tube, the source of gas and dust clinging to some of the inlet tube, the source gas, in the redundancy mode is burned due to the actuation means of burning dust.

The tool 18 supply the source gas enters the source gas supplied from a source 17 for generating a source gas inside the plastic container 7. Namely, one with whom the Oron pipeline 16 is connected to the electrode 5 or the insulating body 4, and the other side of the pipeline 16 is connected to one side of the mass flow controller (not shown in the drawings) via a vacuum valve (not shown). The other side of the mass flow controller is connected to the source 17 for generating a source gas by pipeline. Source 17 for generating a source gas, produces hydrocarbon gas and the like, such as acetylene, etc.

As the source gas used aliphatic hydrocarbons, aromatic hydrocarbons, oxygen-containing hydrocarbons, nitrogen-containing hydrocarbons and the like, which form a gas or a liquid at room temperature. In particular, preferred are benzene, toluene, o-xylene, m-xylene, p-xylene, cyclohexane and the like, in which the number of carbon atoms is 6 or more. Examples of aliphatic hydrocarbons are hydrocarbons of the type of ethylene and a hydrocarbon type acetylene. These materials can be used alone or in the form of a gas mixture gas of two or more types. In addition, these gases can be used, provided their dilution with an inert gas, such as argon or helium. In addition, when forming siliconsamurai film ASD, using Si-containing hydrocarbon gas.

APA film in the context of the present invention is a film of amorphous angle of the ode, containing sp3communication, which is a carbon film, also called a film i-carbon or film hydrogenerating amorphous carbon (a-CH). The amount of hydrogen contained in the APA film, which determines the quality of the film from hardness to softness (as in the case of a polymer)is in the range from 0 at.% up to 70 at.%.

A suction means 21 consists of a vacuum valve 19, the suction pump 20 and the tubing that connects them. The cavity 40 formed inside the element, formed of an insulating body 4 and the electrode 5, is connected with one side of the exhaust manifold. For example, figure 1 shows that the exhaust pipe is connected to the exhaust hole 23 provided in the upper left part of the electrode 5. The other side of the exhaust pipe connected to a suction pump 20 through the vacuum valve 19. A suction pump 20 is connected with an outlet channel (not shown). Due to the operation of the suction means 21 is reduced pressure in the cavity to reduce the pressure, consisting of the cavity 40 and the cavity inside the container inside the chamber 6 reduce pressure.

The tool 14 supply of high frequency energy are formed from the matching node 12, which is connected with the surrounding container electrode 3 and the source 13 of the high-frequency energy, which provides high is astato in matching node 12. The termination node 12 is connected to the output side of the source of high frequency energy 13. Figure 1 shows that the tool 14 supply of high frequency energy connected to the lower electrode 2, but it can be connected to the upper electrode 1. In addition, a source of high frequency energy 13 is grounded. The source of high frequency energy 13 generates a high-frequency voltage between itself and the earth potential, and in this case, the high-frequency voltage is applied between the electrode 3 and the electrode 5. Thus, the source gas inside the plastic container 7 is converted into the plasma. Frequency source of high-frequency power of 100 kHz to 1000 MHz, so used, as a rule, the industrial frequency of 13.56 MHz.

Tara corresponding to the present invention, includes a container that uses a cap or stopper, or which shall be sealed, or containers used in the open state, in which the aforementioned closures do not apply. The size of the hole is determined in accordance with the contents of the container. A plastic container includes a plastic container having moderate hardness and a prescribed thickness, and plastic containers made of sheet material, which has no stiffness. Substance that is poured into plastic containers, corresponding to the present image the structure, may be a carbonated beverage or the beverage of the type of fruit juice, or soft drink, etc. and medicine, agricultural chemical, or dry food, which does not tolerate moisture absorption. In addition, the container can either be returnable containers, or disposable container.

In addition, in the present invention, each part of beverage containers or containers having a shape similar to that mentioned the packaging has the name specified on 11.

The polymer used in the formation of the plastic container 7 according to the present invention may be polyethylene terephthalate (PET) resin, polybutyleneterephthalate resin, polietilentereftalata resin, polyethylene resin, polypropylene (PP) resin, resin cycloolefin copolymer (CSO, calceolariaceae copolymer), ionomer resin, resin poly-4-methylpentene-1, polymetylmetacrylate resin, polystyrene resin, resin of a copolymer of ethylene and vinyl alcohol, Acrylonitrile resin, polyvinyl chloride resin, polyvinylidenechloride resin, polyamide resin, polyamideimide resin, Polyacetal, polycarbonate resin, polysulfone resin or, for example, ternary copolymer ethyleneterephthalate, Acrylonitrile and styrene, or a ternary copolymer of Acrylonitrile, butadiene and styrene. Of course, specifically preferred is polyethylene terephthalate.

Further, with silkline 1 will describe the process in case when UPA film is formed on the inner surface of the wall of the plastic container 7 with the use of the proposed device.

First open a ventilation hole (not shown) and opens into the atmosphere of the inner chamber 6 of the pressure reduction. Thus, the air flows into the cavity 40 and into the cavity inside the plastic container 7, so that the inside of the chamber 6 reduce pressure reached atmospheric pressure. Then, the lower electrode 2 of the surrounding container electrode 3 away from the upper electrode 1 and set the plastic container 7 so that its bottom portion comes into contact with the top surface of the lower electrode 2. As the plastic container 7 is used, for example, a bottle made of PET. Then, lifting the lower electrode 2, sign plastic container 7 into the chamber 6 of the pressure reduction. It should be noted that the inlet tube 9 source gas provided in the chamber 6 reduce pressure, is passed through the hole 10 of the plastic container 7 and is inserted inside the plastic container 7 and the electrode 5 located on the side Golovino part, is above the opening of the packaging. In addition, the surrounding container electrode 3 is sealed with the sealing ring 8 round cross-section.

When the lower electrode 2 is raised to a prescribed position, and the camera 6 reduce pressure sealed, the floor is level state, in which the periphery of the plastic container 7 comes into contact with the inner surface of the lower electrode 2 and upper electrode 1. Then, after closing the vents, include a suction means 21 for pumping air from the chamber 6 of the pressure reduction through the outlet 23. Then reduce the pressure inside the chamber 6 of the pressure reduction until then, until you reach the desired vacuum level, for example, 4 PA. This is done because if we assume a vacuum level greater than 4 PA, the inside of the container will be too much pollution. Then inside the plastic container 7 from the purge hole 9a of the inlet tube 9 source gas from the means 18 supply the source gas, which regulate the flow, introducing the source gas (for example, carbon-containing source gas, such as aliphatic hydrocarbon, aromatic hydrocarbon, and the like). The feed rate of the source gas is preferably 20-50 ml/min

After concentration of the source gas becomes fixed and prescribed pressure of formation of the film is stabilized, for example, 7-22 PA balance of the regulated gas flow and pumping capacity, by source of high frequency energy 13 between the electrode 5 located on the side Golovino part, and the outside packaging is electrodom 3 via the matching node 12 is applied high-frequency voltage, and inside the plastic container 7 is generated plasma source gas. Here it should be noted that the matching node 12 will coordinate the impedance of the surrounding container electrode 3 and electrode 5 through the inductance L and capacitance Stack on the inner surface of the wall of the plastic container 7 is formed UPA film. In addition, output power (for example, at a frequency of 13.56 MHz) source of high frequency energy 13 is approximately 200-500 watts.

Namely, the formation of the UPA film on the inner surface of the wall of the plastic container 7 by means of chemical deposition from the gas phase (HALL) plasma. Due to their high frequency, is applied between the outside of the container electrode 3 and the electrode 5 located on the side Golovino part, on the inner surface of the wall of the container to accumulate the electrodes, and this creates a prescribed potential drop. Thus, a plasma, and the carbon and hydrogen of the hydrocarbon, which is a source gas present in the plasma, both positively ionized. Then these ions randomly collide with the inner wall of the plastic container 7. At this point, between adjacent carbon atoms and between carbon atoms and hydrogen atoms have is the release of temporarily associated hydrogen atoms (the effect of spraying). Codeproject the above processes, on the inner surface of the wall of the container 7 is formed very thin APA film. Due to the application moderate output power of the high frequency and selecting the proper gas flow between the outside of the container electrode 3 and the electrode 5 located on the side Golovino part, will continue plasma discharge. The formation of the film is a few seconds, which is a small duration.

Next, after the concentration of the source gas becomes fixed and stabilization is achieved when the prescribed pressure of the film formation by balancing the controlled gas flow and pumping ability, before creating a plasma can remove the intake tube, the source gas from the container by means of the introduction and extraction of the inlet tube, the source gas, and then you can create a plasma inside the plastic container 7 by application of high frequency voltage between the electrode 5 located on the side Golovino part, and the surrounding containers electrode 3 via the matching node 12 using a source of high frequency energy 13. Here it should be noted that, since the inlet tube, the source gas is not inside the plastic container during a plasma discharge, it is possible to almost completely suppress adhesion of dust.

Further, the issuance of RF energy from the source 13 in soccertots energy cease, and stop the supply of the source gas. Then hydrocarbon gas inside the chamber 6 reduce pressure, pump suction pump 20 until, until it reaches a pressure of 2 PA or less. Then close the vacuum valve 19 and stop the suction pump 20. Then open a ventilation hole (not shown)to open into the atmosphere of the inner chamber 6 of the pressure reduction, and by repeating the above-described method of forming film to form the film of the APU on the inner surface of the next plastic containers.

In this specific embodiment, as Tara had used a bottle made of PET having a thin film formed on the inner surface, but you can also use containers intended for other applications.

In this particular embodiment shows a device of the type in which the opening of the container is facing up, but it is also possible the formation of a chamber of reduced pressure in which the top and bottom are reversed.

In addition, in the present specific embodiment, the UPA film is a thin film formed by making the device, but the above-described apparatus for forming the film can also be used when forming the Si-containing APA plankeye another thin film.

The film thickness characteristic of the generated APA film is 10-80 mm

SPECIAL embodiments of the INVENTION

Plastic containers used in these specific embodiments, implementation, represents a container of PET, made of polyethylene terephthalate resin (PET resin brand RT553 produced by Ninon Yunipet, (Inc.) having a capacity of 500 ml, the height of the container 200 mm, the diameter of the hull packaging 71,5 mm, the inner diameter of the hole Golovino part of the packaging to 21.74 mm, outer diameter in the hole Golovino part of Tara 24,94 mm Permeability of the containers were measured at 23°With the help of the device Oxtran 2/20 manufactured by Modern firm Control Company. As for the film thickness on the inner surface of the container in advance put the silicon wafer, held masking with tape, and after APA cover film was removed the mask and measured film thickness using a contour measuring device DEKTAK 3 produced by Veeco Company. The number helplearn dust adhering to the intake tube, the source of the gas was determined, removing dust from the inlet tube, the source gas and measuring weight using electronic scales (UMT2 manufactured by the company Mettier Company). The number stuck helplearn dust was determined by calculating the difference of the weights of all of the inlet tube, the source of gas before the repeat is engaged in the formations of the film (with the help of the device R300S, produced by Sartorius Company and after such formations. Staining was measured using spectrophotometer model U-3500 Hitachi.

The study of kislotonepronitsaemost

A special variant of implementation No. 1

APA film formed using izgotovlyayuschego device according to figure 2. The electrode located on the side Golovino part and having an annular part, was located at a distance of 25 mm directly above the opening of the packaging. The method of forming the film corresponded to the method of manufacture described above in a specific implementation options.

Used intake tube, the source gas is made of fluorocarbon resin. However, the conditions for forming the film were as follows. The pressure inside the chamber to reduce the pressure was reduced, which corresponded to an open system to a pressure of 4 PA or less. Then the flow rate of the introduced source gas was set at 40 ml/min, the Concentration of the source gas was fixed at the level of 8-10 PA stabilization was carried out by balancing the controlled flow of gas pumping ability. Then within 2 seconds have applied a high frequency (13.56 MHz) at a power of 400 watts. Thus was fabricated containers, covered with ASD film having an inner surface covered with ASD film. This gave special is an implementation option No. 1. In addition, the average film thickness characteristic of ASD film in Golovino parts)was 63 nm.

A special variant of implementation No. 2

APA film was formed in the same manner as in a special embodiment No. 1, except that the electrode located on the side Golovino part and having an annular part that is installed directly above the opening of the container, it gave a special option exercise No. 2. In addition, the average film thickness characteristic of ASD film in Golovino part), was 59 nm.

Comparative example 1

Using the device of the same type as that which has an internal electrode of a known type and shown in Fig, formed UPA film in the same way as in a special embodiment No. 1, except that used an internal electrode instead of the electrode located on the side Golovino part. In addition, the average film thickness characteristic of ASD film in Golovino part), was 64 nm.

Table 1 shows the permeability according to a special variant of implementation No. 1, a special variant of implementation No. 2 and comparative example 1. From table 1 it is clear that a plastic container, covered with ASD film, produced by means of a device having an internal electrode, and plastmassa the second container, covered APA film, produced by means of a device having an electrode located on the side Golovino part, which is the device corresponding to the present invention have approximately the same kislotonepronitsaemost. In addition, even if the device according to figure 1 was used instead of the device according to figure 2 for the special case for No. 1, kislotonepronitsaemost was on the same level. In addition, even if the device in which the shape of the inner wall surrounding the container electrode 3 is similar to the outer shape of the container and which is similar to the device according to figure 1, was used for a special case for # 2, kislotonepronitsaemost was on the same level. In table 1, the abbreviation "pack" means a package (container).

Table 1
Sample numberThe design of the front electrodeThe permeability (cubic cm/pack/day)Comparison with PETCompared with the prior art
A special variant of implementation No. 1Stainless steel tube (electrode located on the side Golovino parts and 25 mm

directly above the container)
0,0044120,9
A special variant of implementation No. 2Stainless steel tube (electrode located on the side Golovino part and located directly over the container)0,0039141,0
Comparative example 1The inner electrode of stainless steel, is inserted into the container0,0039141,0
Measurement parameters: at 23°data are shown as 19 hours after the start of measurement.

The study of the amount of dust stuck

Special option exercise No. 3

APA film formed using izgotovlyayuschego device according to figure 4. The electrode located on the side Golovino part and having a tubular part, was located at a distance of 25 mm directly above the opening of the packaging. In addition, the end of the tubular part was supplied krasivyi tool, made of stainless steel, for supporting the inlet tube, the source gas. This krasivaya tool and represented the end of the tubular part. The method of forming the film corresponded to the method of manufacture described above in a specific implementation options. Conditions of film formation were the same, ka is for a special case for No. 1, and it gave a special variant of implementation N'3. In addition, the average film thickness characteristic of ASD film in Golovino part), was 64 nm.

Comparative example 2

Using the device of the same type as that which has an internal electrode of a known type and shown in Fig, formed UPA film in the same way as in a special embodiment No. 1, except that used an internal electrode instead of the electrode located on the side Golovino part. In addition, the average film thickness characteristic of ASD film in Golovino parts) was 64 nm.

Table 2 shows the amount of dust adhering to the electrode located on the side Golovino part, according to a special variant of implementation No. 3, and the amount of dust adhering to the inner electrode according to comparative example 2. From table 2 it is clear that the amount of dust stuck under a special option exercise No. 3 is reduced to approximately 1/10 of the number according to comparative example 2. In addition, the stuck dust according to a special variant of implementation No. 3 was plenkoobrazovatel, which does not fall, so it has solved the problem of contamination of the inside of the packaging. In addition, when the number of repeated discharges amounted to 10,000 times under the conditions according to special the mu option exercise No. 3, destabilization of the plasma discharge occurred. Destabilization of the plasma discharge occurred when the number of repeated bits at 862 times in conditions according to comparative example 2. Accordingly, it is obvious that, in contrast to devices with an internal electrode, the device corresponding to the present invention has proved to be effective against dust.

Table 2

Table: comparison of the amount of dust adhering to the intake tube, the source of gas, depending on the time of forming the film
Type inlet tube gasThe number of adherent helplearn dust (mg)The number of adherent plenkoobrazovatel dust (mg)Comparison of quantities stick plenkoobrazovatel dust
Special option exercise No. 3Fluoropolymer3,20,12
Comparative example 2The internal electrode stainless steel1,226, 01,00
*1: Each film formation was carried out 15 times

*2: Helplearn dust was black or blackish-brown and was easy enough, the button could be blowing; since the loss of dust inside the packaging is a quality problem, to remove such dust is no need to enter the cleaning process

The amount of dust adhering to the electrode located on the side Golovino part in a special embodiment No. 1 after formation of a film is less compared to the amount of dust adhering to the inner electrode in comparative example 1, after forming the film. Figure 9 shows the condition of adhesion of dust to the electrode located on the side Golovino part in a special embodiment No. 3 in comparison to the formation of a film, and after forming the film. "After the formation of a film" is the case where the film formation is repeated 15 times. In any case, the amount of adhered dust after forming the film a little.

Figure 10 shows images illustrating the comparison of a plastic container, covered with ASD film, when the film formation is repeated 15 times in the same package in a special case for No. 1, and plastic containers, covered with ASD film, when the film formation is repeated 15 times in the same container under the conditions of comparative example 1. One side of the drawings refers to one side of the container, and the opposite side is to the back of one the nd side. Addressing these two parts of the drawing, it is possible to conduct research on the entire side surface of the container. According to figure 10, in contrast to the large non-uniformity (staining) APA film Golovino part of the container (labeled "prior art"), subject to formation of the film 15 times in conditions of comparative example 1, the non-uniformity (status staining) APA film Golovino part in the packaging (marked as "present invention"), subject to formation of the film 15 times in the special case for No. 1, were small. In order to quantify these results, measured by staining (value b*) for each unit of packaging according to a special variant of implementation No. 1 and comparative example 1 when turning clockwise 360° relative to the front surface of the device forming the angle 0°namely, one turn in the circumferential direction of the side surface of the container. Thus, it is possible to judge the color non-uniformity. This value of b* is a color difference according to the standard JISC 7105-1981 Japanese Committee on industry standards and is calculated according to equation 1 based on the values X, Y and Z coordinates of the three colors.

Equation 1

b*=200[(Y/Y0)1/3-(Z/Z0)1/3]

Used automatic Regis is ryuushi spectrophotometer model U-3500, manufactured by Hitachi, equipped with a device attached svetainiu ball F (for infrared light in the near infrared region near the border of the visible radiation), made by the same company. Used ultra-sensitive photomultiplier tube (R928: visible ultraviolet radiation) and the device is cooled type with PbS (near-infrared). With regard to the measured wavelengths, the transmittance was measured in the range from 240 nm to 840 nm. Measuring the transmittance of containers from PET, it is possible to calculate the measurement of the transmittance only for APA film value, and b* according to the modalities for the implementation, as shown by calculation, can be obtained in a form that includes the absorptive capacity of containers from PET. These results are shown in Fig. From Fig follows that the value of b* according to a special variant of implementation No. 1 on the entire surface by rotation 360° around Golovino part of the packaging was 2.5-3.0, and it was possible to improve quality in the context of color non-uniformity. On the other hand, as is evident from the fact that the value of b* according to comparative example 1 had a range of values in the range of 3.5 to 4.5, the color unevenness in the circumferential direction of the side surfaces of the packaging were great. Accordingly, the device is according to the present invention makes it possible to produce plastic containers, covered APA film having a small uneven distribution of UPA film in the circumferential direction of the side surface of the container.

In addition, the same results were obtained even when the device according to figure 3 was used instead of the device according to figure 4 in a special embodiment No. 3.

Special embodiments it is clear that the device corresponding to the present invention can stabilize the plasma discharge at a level that ensures that kislotonepronitsaemost meet the known technical solutions, and helps to prevent the adherence of the dust on the electrode located on the side Golovino part. Therefore, the device corresponding to the present invention, has a good performance in the manufacture of plastic containers having excellent gas impermeability, and can operate with high speed manufacturing. In addition, uneven distribution of UPA film in the circumferential direction of the side surface of the small containers.

1. The device for manufacturing a plastic container coated with diamond-like carbon film containing surrounding the container electrode, forming one part of the chamber to reduce the pressure in which is enclosed with a plastic container, and an electrode located at the throat t is ture over her hole and surrounding the container electrode, located at the neckline, made facing each other and separated by an insulating body forming part of the chamber to reduce pressure, means for supplying the source gas converted to plasma for coating the inner surface of the wall of the container of diamond-like carbon film containing the inlet tube, the source gas made of an insulating material and located in the chamber to reduce the pressure for introducing the source gas into the container, means for pumping gas in chamber of reduced pressure from the opening of the container, and means for supplying high frequency, connected to the surrounding container electrode.

2. The device according to claim 1, in which the electrode is located at the mouth of the container, provided with an annular part having an inner bore diameter essentially equal to the diameter of the hole of the container, and the opening end of the annular portion is located near the hole of the container and aligned coaxially with him.

3. The device according to claim 1, in which the electrode is located at the neck of the container has a tubular portion that passes down from the top of the camera, reducing the pressure to a position above the opening of the container and having an end connected to the inlet tube of the source gas and designed for insertion into the tubular portion of the source gas fed by the means for supplying the source gas.

4. The device according to claim 1, in which the electrode is located at the mouth of the container with the possibility of entering into contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

5. The device according to claim 2, in which the electrode is located at the mouth of the container with the input end of the ring portion in contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

6. The device according to claim 3, wherein the electrode is located at the mouth of the container with the input end of the tubular portion in contact with the gas stream formed from the hole of the container to the outlet chamber of the pressure reduction due to the action of the suction means.

7. Device according to any one of claims 1 to 6, in which the inlet tube, the source gas is made of a polymeric material, such as Teflon or similar material having an insulating property and heat resistance sufficient to withstand the impact of plasma, or made of a ceramic material such as alumina or similar material having an insulating property.

8. Device according to any one of claims 1 to 6, in which the inlet tube, the source gas is made with the possibility of free insertion through hole packaging zag is Blencoe position to reach the bottom of the container or removing the tube from this recessed position.

9. The device according to claim 7, in which the inlet tube, the source gas is made with the possibility of free insertion through hole packaging in a recessed position with reaching the bottom of the container or removing the tube from this recessed position.

10. Device according to any one of claims 1 to 6, 9, additionally containing the means of introduction and extraction of the inlet tube, the source gas is designed to place the intake tube into the condition inside the packaging with the introduction of the source gas and the placement of the inlet tube is extracted from the container when the formation of plasma.

11. The device according to claim 7, further containing a means of introduction and extraction of the inlet tube, the source gas is designed to place the intake tube into the condition inside the packaging with the introduction of the source gas and the placement of the inlet tube is extracted from the container when the formation of plasma.

12. The device according to claim 8, further containing a means of introduction and extraction of the inlet tube, the source gas is designed to place the intake tube into the condition inside the packaging with the introduction of the source gas and the placement of the inlet tube is extracted from the container when the formation of plasma.

13. Device according to any one of claims 1 to 6, 9, 11, 12, in which the container is a container for beverages.

14. The device according to claim 7, in which the Ara is a container for beverages.

15. The device according to claim 8, in which the container is a container for beverages.

16. The device according to claim 10, in which the container is a container for beverages.



 

Same patents:

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25 cl, 24 dwg, 7 tbl

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25 cl, 24 dwg, 7 tbl

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16 cl, 12 dwg, 2 ex, 2 tbl

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FIELD: machine building.

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1 cl, 1 dwg

FIELD: processes of chemical infiltration or chemical deposition from vapor phase, case hardening in furnace.

SUBSTANCE: method is used for monitoring process realized in furnace with use of gas reagent containing at least one gaseous hydrocarbon. Method comprises steps of adjusting working parameters of furnace; adding into furnace gas-reagent containing at least one gaseous hydrocarbon; discharging from furnace exhaust gases that contain by-products of gas-reagent reaction; washing out exhaust gases by means of oil that absorbs resins present in exhaust gases; receiving information related to process according to measured quantity of resins absorbed by oil. It is possible to change working parameters of furnace such as temperature, pressure in furnace, gas-reagent consumption and composition.

EFFECT: possibility for monitoring process in furnace without special apparatus of infiltration furnace.

14 cl, 1 dwg, 1 ex

FIELD: carbon particles.

SUBSTANCE: invention relates to technology of preparing particles having monocrystalline diamond structure via growing from vapor phase under plasma conditions. Method comprises step ensuring functioning of plasma chamber containing chemically active gas and at least one carbon compound and formation of reactive plasma, which initiate appearance of seed particles in the plasma chamber. These particles ensure multidirectional growing of diamond-structured carbon thereon so that particles containing growing diamond are formed. Functioning of plasma chamber proceeds under imponderability conditions but can also proceed under gravitation conditions. In latter case, seed particles and/or diamond-containing particles in reactive plasma are supported under effect of external gravitation-compensating forces, in particular by thermophoretic and/or optic forces. Temperature of electrons in the plasma are lowered by effecting control within the range from 0.09 to 3 ev. Chamber incorporates plasma generator to generate plasma with reduced electron temperature and device for controlling forces to compensate gravitation and to allow particles to levitate in the plasma with reduced electron temperature. This device comprises at least one levitation electrode for thermophoretic levitation of particles in plasma with reduced electron temperature or an optical forceps device.

EFFECT: enabled efficient growing of high-purity duly shaped particles with monocrystalline diamond structure having sizes from 50 μm to cm range (for instance, 3 cm).

19 cl, 5 dwg

FIELD: metallurgy.

SUBSTANCE: invention refers to plastic package with inside surface of wall coated with diamond-like film; invention also refers to device for fabricating this package and to method of package fabricating. The device contains an electrode encompassing the package and forming one portion of a chamber for pressure fall where the package and a facing electrode located inside the package above an aperture are arranged. The said electrodes face each other and are divided with an insulating body forming portion of the pressure fall chamber. A device for source gas supply contains an inlet pipe of supplied gas. There are also a pumping out device and a device of high frequency supply. The method includes pumping out the package contents till achieving the pressure less or equal to specified, then introduction of source gas for generating plasma, termination of pumping out and decreasing the rate of introduction of the source gas to the value less than the rate of introduction at the moment of change, generating plasma for formation of diamond-like carbon film on the interior surface of the plastic package wall. Thus the package with film is produced; the said film has equal level of oxygen impenetrability; and colouring of film formed at the throat portion of the package is avoided.

EFFECT: production of package with diamond-like carbon film with uniform level of oxygen impenetrability.

25 cl, 24 dwg, 7 tbl

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