Method of application of the coating on the surface of the metallic material and the device for the method realization

FIELD: building industry; method and devices allowing to make the three-dimensional visual effects on the surface of the metallic material.

SUBSTANCE: the invention is pertaining to application of the coatings on the surfaces of the metallic materials. The method provides for application of the coating made out of the metal or out of the metal alloy. The first layer of the applied coating has the depth smaller or equal to 2.5 microns. Then conduct the thermal treatment of the first layer of the coating by means of the fast heating by heating the surface of the first layer of the coating up to the temperature laying within the limits from0.8 Tf up tothe temperature of Tf, whereTf is the temperature of smelting of the metal or the metal alloy, which is used in application of the first layer of the coating. Then they apply the second layer of the coating from the metal or the metal alloy with the depth smaller or equal to 1 micrometer. The invention also presents the material containing the indicated layers as well as the device for application of the coating on the metallic material in the form of the strip, which contains the tool for the strip pulling and the tool for application of the coating. On the path of motion of the dawn strip there are in series mounted the following tools: the tool for application of the first layer on the strip; the strip fast heating tool, which is capable to heat the surface of the first layer up to the above-indicated temperature; the tool for application on the strip of the second layer of the metal or the metal alloy. The technical result of the invention is creation of the method and the device allowing to produce the three-dimensional visual effects on the surface of the metallic material.

EFFECT: the invention ensures creation of the method and the device for production of the three-dimensional visual effects on the surface of the metallic material.

24 cl, 6 dwg, 8 ex

 

The present invention relates to a coating on a metal surface. In particular, it relates to methods of coating the surface of a metal material to make it three-dimensional visual effect.

This visual effect can be achieved with the help of holograms, which are obtained by recording and playing back images using two laser beams on the photosensitive high-contrast media. Such carriers are, for example, thermoplastic films, photopolymers, photosensitive film, etc.

Up to the present time, to obtain a three-dimensional visual effect on a metal surface, the only way was gluing or joint lamination to the surface of the photosensitive media type of the above-mentioned media. The main distribution of this technology received for decorating metal packaging containers made of steel or aluminium, and its disadvantage is that the steel company-the manufacturer is forced to use the services of a third party provider for delivery of the photosensitive media. In addition, there is a danger of separation of the carrier from the package or its destruction during processing operations and manipulations after gluing or joint laminating.

The present invention is to provide a method allowing to obtain a three-dimensional visual effects on the surface of metal material without coating on the surface of the photosensitive medium.

In this regard, an object of the present invention is a method of coating the surface of a metal material having a crystalline structure comprising the coating of metal or metal alloy, characterized in that the first coating layer is applied with a thickness of less than or equal to 2.5 μm, followed by heat treatment of the first coating layer by means of rapid heating by bringing the surface of the first coating layer to a temperature in the range of 0,8Tfto Tfwhere Tf- melting point metal or metal alloy, which is applied to the first coating layer, then put the second layer of the coating of metal or metal alloy with a thickness that is less than or equal to 1 μm.

Preferably, the metal or metal alloy, which is applied to the first and second layers of the coating has a melting temperature lower than or equal to 700°C.

The first and second coating layers can be made of the same material.

As a metal material, the surface of which is coated, use in hardisty steel, stainless steel, aluminum or one of its alloys

The first coating layer may be applied by electro-deposition or vacuum deposition.

As a means of rapid heating using a device that provides heat by infrared radiation, or providing induction heating, or provide a plasma-arc heating in the presence of inert gas, or to heat the ion bombardment in the presence of inert gas.

Applying a second layer of the coating is carried out by electro-deposition or vacuum deposition.

The first and/or second coating layers are made of tin or aluminum.

After applying the second coating layer is applied a transparent mineral film.

Preferably, transparent mineral film is applied to plasma-jet deposition.

Mineral film may be made of a metal oxide or mixture of metal oxides.

The metal oxides are selected from the group consisting of oxides of chromium, titanium, silicon, zinc, tin.

The metal material is carried out in a stretch band, and the stages of the process is carried out in a continuous mode using plants, consistently placed in the path of movement pulled at the tape.

Another object is a device for coating metallic material is in the form of a strip, containing means for pulling the strip and means for applying the coating, with the path of movement extending strips successively installed the following tools:

means for applying a strip of the first layer of metal or metal alloy;

- rapid heating strips made with the possibility of heating the surface of the first layer to a temperature in the range from 0,8Tfto Tfwhere Tf- melting point metal or metal alloy, which is applied first coating layer;

- the tool is applied to the strip of the second layer of metal or metal alloy.

The device further comprises a means of applying a strip of transparent mineral film placed over the means of applying the second coating layer.

Another object is a metal material containing at least one of its surfaces, the metallic coating with a three-dimensional image is formed directly on said metal surface, with the material obtained in accordance with the above method.

As explained below, the present invention consists in obtaining the desired three-dimensional visual effect through the implementation of a number of processing operations of the surface of the metal material. Thus, get the multilayer coating, which cannot be separated from a metal material and may be made by the smelter, producing a base material. In addition to its aesthetic qualities, this coating has many advantages technical procedure and allows the manufacturer of metal material to fully control the process of decoration.

The present invention will be more apparent from the following description with reference to the accompanying figures 1-6, showing the appearance of the various coatings obtained using different variants of the method in accordance with the present invention.

The source material is a metallic material such as carbon steel, stainless steel, or aluminum or one of its alloys, etc. It has, for example, the shape of the plate or wound into a roll bands. In the latter case, processing, description which follows, it is possible to carry out, unwinding the strip continuously extending its installation, in which by means of various devices installed in series on the path of movement of the strip, carry out the various stages of processing. To obtain the desired aesthetic effect, it is necessary to use as the substrate metal material has a crystallographic structure.

Before coating in a known manner on Westlaw polishing the surface of the material, in order to remove any surface contamination.

The first step of the method is the application of the first coating layer of metal (for example, tin or aluminum) or metal alloy, preferably with a low melting temperature Tf700°With or below. This coating should have a thickness of less than or equal to 2.5 microns. Preferably it is applied using a deposition method or vacuum deposition method. Among the applied methods of coating can be mentioned known methods of vacuum vapour deposition, magnetron sputtering, ion plating, ion samoindutsirovannoi cladding (self-induced ion plating).

The second step of the method is heat treatment of the first coating layer using the rapid heating, such as an infrared lamp, the inductor, plasma arc heater or ion bombardment with the use of an inert gas such as a noble gas. This thermal treatment is supposed to heat the surface of the first coating to a temperature in the range of 0,8Tfto Tf. So it passed in the kinetic terms that are compatible with its implementation on the strip, moving with a speed of 100 m/min, preferably Tfwas less than or equal to 700°C.

The third step of the method is inflicted is of the second coating layer of a metal element or alloy, identical to a material of the first coating layer or different from it. This coating layer may have a thickness not exceeding 1 μm. It is applied using the same methods as the first coating layer.

Preferably (but not necessarily) the method can include a fourth stage, during which the second coating layer is applied a transparent mineral film. For this purpose it is preferable to use materials such as oxides of austenitic stainless steel, chromium, titanium, silicon, zinc, tin (not a restrictive list) and their mixtures. The application of this transparent mineral film can be carried out by any known means, the most preferred is the method of plasma-jet deposition. If this film has a thickness of less than or equal to 1 μm, it is possible to obtain a colored coating using the interference effect of the mineral film. Depending on the refractive index of coating material can be obtained green, yellow, blue, purple and red colors. Typically, this transparent film provides visibility for more depth of three-dimensional images obtained from the first three stages of the method.

For the emergence of patterns on the surface of the substrate, as already indicated, it is necessary that it have the crystallographic structure. Indeed, for the of an unforgettable pictures when the solidification of metallic coatings is based on the preferential sites on the surface of the substrate, existing only in the presence of substrate crystallographic structure.

The size of the resulting images depends on the amount of energy used during the second step of the method, and the thickness of the coating: the drawings will be greater, the greater the amount of energy and/or the value of this thickness. The use of metal or alloy with a low melting point (700°With or less) as the coating material in the first stage of the method allows for metallurgical transformation of the coating during the second stage within a very short period of time. The above-mentioned methods of heating to get the necessary amount of energy for a short time.

The method in accordance with the present invention has several advantages in comparison with obtaining a three-dimensional visual effects using photosensitive media applied to metal products. As mentioned above, it allows the manufacturer to fully control the whole process. Since in this case the floor, generating a three-dimensional visual effect, an integral part of the media, that eliminates the possibility of delamination during subsequent processing operations and manipulations. In addition, in particular, if the method is carried out in the full version, consisting of four stages, received the second coating improves the resistance of the substrate surface against corrosion. The coating has a higher resistance to UV rays and temperature. It less remain the fingerprints. It has high surface hardness, which makes it more durable against scratches. It is easy to clean and has good resistance to detergents and to mechanical stress. Finally, by using the appropriate metal coating (e.g., tin) may be compatible with food products.

What follows is a description of various examples of the method in accordance with the present invention. They were implemented on the sheets of mild steel 200×200 mm and a thickness of 0.7 mm Pre-these sheets were subjected to degreasing known wet method (solvent, mixed by ultrasound). After that make ion etching sheets argon plasma in the vacuum reactor, which is then used during the various stages of the method in accordance with the present invention.

Example 1

In the first step of the method in accordance with the present invention the sheet is covered with a layer of tin with a thickness of 0.8 μm by magnetron sputtering in an argon atmosphere under a pressure of 10-3mbar (0.1 PA). The current target is equal to 0.9 amperes, and the voltage of the target is equal to 450 C. the Rate of deposition of tin composition is employed, 0.25 μm/min

On the second step of the method in accordance with the present invention, the sheet is subjected to heat treatment argon plasma under a pressure of 10-3mbar (0.1 PA). Inform ions of argon energy equal to 400 eV, and the dose of ion irradiation received by the sheet, equal to 4.7 .1022ions Ar+/m2. The sheet acts as a cathode. The tin surface is heated to a temperature of about 210°C.

In the third stage magnetron sputtering is applied tin coating thickness of 0.4 μm in the same experimental conditions as the first floor.

At the fourth stage produces a coating of a transparent film of alumina with a thickness of 0.1 μm by plasma chemical vapour deposition (CVD). The application is carried out in the atmosphere from hexamethyldisiloxane (HMDSO) and oxygen under a pressure of 10-3mbar (0.1 PA). Use the current frequency of 50 kHz and a power of 100 watts. Speed of application is 1.0 μm/min

Using this method, you receive the coating, the appearance of which is shown in figure 1, with anti-corrosion properties, leaving no fingerprints, easy to clean and has high surface hardness. It has the strength to high mechanical, chemical and thermal influences.

Example 2

At the above-mentioned steel sheet coated under conditions identical to the conditions from example 1 is that with regard to the first three stages. In the fourth stage get colored titanium film using reactive magnetron sputtering of titanium target. Its thickness is equal to 0.05 microns. Get it in the atmosphere of About2/Ar at PO2/PAr=0,4, while the total pressure is 5·10-3mbar (10,5 PA), and the equal power of 1.7 kW. So, get coverage, shown in figure 2, with properties similar to the properties of the coating from example 1, and, in addition, having a blue color tinge because of the refractive index of titanium oxide (2,5), as well as the special properties inherent to titanium oxide, that is, high chemical inertness, heat resistance, chemical resistance and the ability to self-cleaning, provide the catalytic effect of the destruction of substances containing carbon and oxygen, in the presence of ultraviolet radiation.

Example 3

On the said sheet of mild steel coated in the same conditions as in example 2, except that the thickness of the first tin coating increases to 1.2 μm, and increase the dosage of ions received by the first layer of tin during the second step of the method. This dose is in this case 9,4·1022ions Ar+/m2. The tin surface is heated to a temperature of about 235°C. the Result is shown in figure 3.

Note the p 4

On the said sheet of mild steel coated in the same conditions as in example 2, except that, as in example 3, to increase the dose of ions received by the first layer, to 9.4·1022ions Ar+/m2and the film thickness of the titanium oxide is increased to 0.8 μm. The result is shown in figure 4.

It should be noted that the increase in energy used at the second stage of processing, leads to a significant increase in the size of the pictures.

Example 5

At the above-mentioned steel sheet coated under the same conditions as in example 1, except that in the second stage uses two infrared lamps for heating the substrate and the first tin layer and on the second layer of tin without oxide. The result is carry out only the first three steps of the method needed to obtain the desired three-dimensional visual effect. Heating the layer of tin is static and lasts for 8 minutes in a tube furnace at a temperature of 200°C. the Result is shown in figure 5.

Example 6

On a very thin sheet of soft steel with a thickness of 0.2 mm and a size of 200×200 mm by means of electrodeposition put a layer of tin, while receiving sheet of tinplate, which is usually used in the field of food products. The second and third stages of the method in accordance with the present invention is carried out under conditions identical Slavianskaya 2. It does not carry out the fourth step of the processing in accordance with the present invention. The result is shown in Fig.6.

Example 7

In the first step of the method in accordance with the present invention the sheet is covered with a layer of aluminium of a thickness of 0.6 μm by using magnetron sputtering in argon atmosphere under a pressure of 10-3mbar (0.1 PA). The current target is 1.8 A, and the target voltage is equal to 355 C. the Rate of deposition of an aluminum layer is 0.33 μm/min

On the second step of the method in accordance with the present invention, the sheet is subjected to heat treatment argon plasma under a pressure of 10-3mbar (0.1 PA). The energy input argon ions, equal to 280 eV, and the dose of ion irradiation 18.4·1022ions Ar+/m2. The surface of the sheet covered with aluminum, at the end of processing is heated to a temperature of 615°C.

In the third stage using magnetron sputtering is applied tin coating in the same experimental conditions as in the third step of example 1.

In these conditions get coverage with an identical appearance to the coating of example 1.

Example 8

The coating of tin on said sheet mild steel is carried out in the same conditions as in example 3, the first two stages. In the third stage using magnetron sputtering is applied aluminum coating in the same EC the pilot conditions, as in the first stage of example 7, except that the thickness of the aluminum coating is 0.4 μm.

In these conditions get coverage with an identical appearance to the appearance of the coating from the example shown in figure 3.

Examples of substrate materials and different covering layers, as well as the conditions for its execution are not restrictive. The specialist may develop different ways depending on the desired properties of the final product.

If you want to obtain a three-dimensional visual effect only on one or more parts of the surface of the metal material, in this case, you can kashmiriat the material of one or more masks that cover areas not intended for the coating, during the various ongoing operations.

1. The method of coating the surface of a metal material having a crystalline structure comprising the coating of metal or metal alloy, characterized in that the first coating layer is applied with a thickness that is less than or equal to 2.5 μm, followed by heat treatment of the first coating layer by means of rapid heating by bringing the surface of the first coating layer to a temperature in the range of 0,8Tfto Tfwhere Tf- temperature is RA melting metal or metal alloy, of which is applied a first coating layer, then put the second layer of the coating of metal or metal alloy with a thickness that is less than or equal to 1 μm.

2. The method according to claim 1, characterized in that the metal or metal alloy, which is applied to the first and second layers of the coating has a melting temperature lower than or equal to 700°C.

3. The method according to claim 1, characterized in that the first and second coating layers are made of the same material.

4. The method according to claim 1, characterized in that the metal material on the surface of which is coated, use carbon steel.

5. The method according to claim 1, characterized in that the metal material on the surface of which is coated, use stainless steel.

6. The method according to claim 1, characterized in that the metal material on the surface of which is coated, use aluminum or one of its alloys.

7. The method according to claim 1, characterized in that the first coating layer is applied by electrodeposition.

8. The method according to claim 1, characterized in that the first coating layer is applied by vacuum deposition.

9. The method according to claim 1, characterized in that as a means of rapid heating using a device that provides heat by infrared radiation.

10. The method according to claim 1, characterized in that as a means to rapidly heat the and use the device, providing induction heating.

11. The method according to claim 1, characterized in that as a means of rapid heating using a device that provides a plasma-arc heating in the presence of inert gas.

12. The method according to claim 1, characterized in that as a means of rapid heating using a device that provides heated by ion bombardment in the presence of inert gas.

13. The method according to claim 1, characterized in that the deposition of the second layer coating is carried out by electrodeposition.

14. The method according to claim 1, characterized in that the deposition of the second layer coating is carried out by vacuum deposition.

15. The method according to claim 1, characterized in that the first and/or second coating layers are made of tin.

16. The method according to claim 1, characterized in that the first and/or second coating layers are made of aluminum.

17. The method according to claim 1, characterized in that after applying the second coating layer is applied a transparent mineral film.

18. The method according to 17, characterized in that the transparent mineral film is applied to plasma-jet deposition.

19. The method according to 17, characterized in that the mineral film made of a metal oxide or mixture of metal oxides.

20. The method according to claim 19, characterized in that the metal oxides are selected from the group consisting of oxides of chromium, titanium, silicon, zinc and tin.

21. the procedure according to any one of claims 1 to 20, characterized in that the metal material is carried out in a stretch band, and the stages of the process is carried out in a continuous mode using plants, consistently placed in the path of movement extending strips.

22. Device for coating metallic material in the form of a strip containing a means for pulling the strip and means for applying the coating, characterized in that the path of movement extending strips successively established the following means: means for applying a strip of the first layer of metal or metal alloy, a means of rapid heating strips made with the possibility of heating the surface of the first layer to a temperature in the range from 0,8Tfto Tfwhere Tf- melting point metal or metal alloy, which is put the first layer of the coating, tool coating on the strip of the second layer of metal or metal alloy.

23. The device according to item 22, characterized in that it further comprises means of applying a strip of transparent mineral film placed over the means of applying the second coating layer.

24. Metal material containing at least one of its surfaces, the metallic coating with a three-dimensional image is formed directly by mentioning is that the metal surface, characterized in that the coating obtained by the method according to claim 1.



 

Same patents:

FIELD: chemical and electrochemical application of layers of noble metals from aqueous solutions; chemical, radio-electronic and electrical industries.

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2 cl, 1 tbl, 2 dwg

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11 dwg, 1 tbl, 1 ex

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31 cl, 14 dwg, 7 ex

FIELD: metallurgy industry; methods of application of the plastic metals coating on the surfaces of the arbor type details.

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Protecting coating // 2292252

FIELD: foundry, namely coatings protecting metallic molds against breakage.

SUBSTANCE: protecting coating contains, mass %: clay, 70 - 73; borax, 20 - 24; potassium chloride, 6 - 7.

EFFECT: burning preventing coating for metallic molds protecting mold surface against oxidation.

1 tbl

FIELD: mechanical engineering; other industries; production of materials with antifriction coatings for the sliding friction pairs.

SUBSTANCE: the invention is pertaining to the materials for the pairs of sliding friction and may be used in mechanical engineering and other branches of industry. The composite antifriction coating on the components made out of aluminum alloys contains the external antifriction layer and the arranged between it and the base made out of the aluminum alloy the layer of the ceramic-oxide of 50...300 microns thick. The external antifriction layer is made out of copper or the copper based alloy, and its thickness compounds 2...10 microns. The method of manufacture of the given coating provides for formation of the ceramic-oxide layer with the open porosity by the anode-cathode microarc oxidation and the subsequent antifriction layer costing. Before the antifriction layer coating from the ceramic-oxide surface remove the layer with porosity exceeding 10 %. Then the component is treated with the lubricant on the basis of technical glycerin. The antifriction layer is applied using the mechanically-frictional method. The rubbing plate made out of copper or on the copper basis press to the surface of the ceramic-oxide with the monotonically increasing contact pressure. The rubbing plate is heat-insulated from the pressing component of the device for rubbing and has the form of the contacting it surface. The technical result of the invention is expansion of the capabilities to create the composite antifriction coatings on the details made out of aluminum alloys, which shapes limit the possibility of their heating because of buckling.

EFFECT: the invention ensures expansion of the capabilities to create the composite antifriction coatings on the surfaces of the details made out of aluminum alloys, which shapes limit the possibility of their heating because of buckling.

3 cl, 1 dwg

FIELD: manufacture of superconductors, possibly in electrical engineering, radio and other industry branches for producing superconducting intermetallic compound inside film non-superconducting coating.

SUBSTANCE: method comprises steps of common ion-plasma spraying of targets and further treatment of coating for initiating reaction of forming intermetallic compound. At ion-plasma spraying of targets initial metals are deposited onto substrate in the form of film coating from solid solution of metals. Film coating is subjected to action of flow of ionizing particles whose energy is sufficient for dissipation at preset depth from coating surface and for initiating intermetallization reaction. After initiation of intermetallization reaction, superconducting intermetallic compound is formed inside film non-superconducting coating.

EFFECT: realization of synthesis of superconducting intermetallic compound inside film non-superconducting coating.

2 ex

FIELD: application of anti-friction coats on inner cylindrical surfaces of parts formed by anode-cathode micro-arc oxidation.

SUBSTANCE: workpiece and device are rotated in opposite direction. Reciprocating oscillations are imparted to device along axis of surface being treated at swing and frequency determined by the following formula: Δ=(0.05-0.2)·b, f=(0.4-1.6)(ω1-ω2), where Δ is swing of oscillations of device in axial direction, mm; f is frequency of oscillations of device, Hz; b is width of rubbing member, mm; ω1 is angular velocity of rotation of workpiece, rad/s; ω2 is angular velocity of device, rad/s. Device proposed for realization of this method has body (1) with deforming member (5) and rubbing member (6) mounted on it. Rubbing member (6) is made in form of plate embracing deforming member (5). Body (1) is made in form of hollow cylinder provided with circular threaded bore (2) at the end where elastic member (4) and deforming member (5) are secured by means of thrust washer (3). Elastic member is rigidly connected with body (1) and deforming member (5) provided with oxide heat-insulating coat on its outer surface; it is also provided with circular groove for receiving rubbing member (6). Thickness of rubbing member (6) is equal to Δ=(1.3-2.0)·δ c(D/d)·(B/b), where δ is thickness of rubbing member, mm; δc is thickness of coat being formed, mm; D is diameter of cylindrical surface being treated, mm; d is diameter of outer surface of rubbing member, mm; B is width of cylindrical surface being treated, mm; b is width of rubbing member, mm. Through slot (7) made in body (1), elastic member (4) and deforming member (5) is used for securing the rubbing member to exclude its slippage. Proposed method extends functional capabilities of application of copper-based anti-friction coat on aluminum cylindrical surfaces.

EFFECT: extended functional capabilities; reduced contact pressure in zone of treatment.

3 cl, 2 dwg

FIELD: method for coating of superabrasive, in particular, diamond particles, with metal for manufacture of cutting tools, such as grinding or milling tools, or plated diamond articles.

SUBSTANCE: method involves using coating forming metal powder including compound; providing thermal reduction of metal from compound by placing superabrasive particles and powder adapted for forming of coating together into inert atmosphere; heating superabrasive particles and said powder to temperature of from at least 5000C to temperature below superabrasive destruction temperature during time interval sufficient for effective deposition of metal layer onto at least one portion of surface of each superabrasive particle and providing chemical bonding between said particles and said powder; cooling said particles and said powder to temperature below temperature of reaction between superabrasive particles and powder; separating mixture for obtaining of product fraction in the form of superabrasive particles coated with metal and substantially free from coating forming powder and by-product fraction in the form of coating forming powder substantially free from superabrasive particles coated with metal. Described are superabrasive particles coated with metal by means of said method, method for manufacture of abrasive tool with the use of superabrasive particles coated with metal, abrasive tool comprising said particles, and plated product comprising constructional diamond part and equipped with metal layer chemically bonded with at least one portion of surface of said constructive part.

EFFECT: provision for obtaining of material having superthin coatings of chemically active metal uniformly covering superabrasive over the entire surface of substrate.

27 cl, 2 tbl, 8 ex

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