Device for plasma working of metal surface

FIELD: working of metals .

SUBSTANCE: device comprises power source, controlled frequency converter, step-up high-frequency resonance transformer with working needle electrode, and gas-dynamic unit with gas duct and nozzle for supplying the gas to the treatment zone. The output of the controlled frequency converter is connected with the high-voltage electrical gas discharging unit of plasma generators having the step-up high-frequency transformers. The low-voltage windings of the transformers are interconnected in parallel and are connected with the controlled frequency converter. The high-voltage windings are connected with the needle electrodes concentrating electromagnetic energy. The electrodes are axially aligned and are mounted inside the nozzle. The nozzles provide the ionized agent to be homogeneously distributed over the surface of the material mounted on the receiving drum that is actuated from the electric motor with the voltage control.

EFFECT: expanded functional capabilities.

5 cl, 4 dwg

 

The invention relates to a device for surface treatment of materials high-frequency electric discharge in a gaseous environment and can be used to modify the surface structure of polymer films, for antiseptic, cleaning and disinfection of surfaces of materials.

A device for surface treatment of fabrics high-frequency electric discharge, containing the power source to a generator of high-frequency alternating voltage and a frequency Converter connected to the winding of the plasma torch having a working needle electrode, and gas-dynamic block for blowing gas (patent RF №2100013 on CL And 61 In 17/39 from 11.04.1995).

A disadvantage of this device are narrow features, low productivity due to the inability of processing large surfaces of the materials. Passing podavaemogo gas within the coil through the windings of the transformer under voltage in a strong high-frequency electric field reduces the reliability of the device and may violate isolation and premature exit of the plasma torch down. The presence of the nozzle reduces the overview section of the workpiece, and the placement of the needle electrode in the nozzle after prolonged use leads to the burning of the nozzle with the formation of soot on the output cha the tee nozzle, what affects the functional properties of the device.

A device for material processing high-frequency electric discharge, comprising a generator of alternating voltage adjustable frequency Converter operating in a resonant mode with high frequency transformer, potential output associated with the needle a working electrode located in the nozzle and creates a plasma treatment zone material with a blowing gas or without him in the air (RF patent No. 2191113 in class 29 In 13/08, 05 D 3/14 from 20.10.2002).

The disadvantages of this device are insufficient functionality, low productivity, stippling effects of the working electrode to the workpiece surface, the absence of the possibility of dosing the impact of the discharge on the material and the transmission of gas through the Converter, which reduces reliability and increases the gas flow continued in the working area of material processing and in the absence of an electric discharge.

Object of the invention is enhanced functionality, improved performance and accuracy of surface treatment of materials, reduction of gas consumption, increase reliability and efficiency of plant operation.

In use of the present invention are expanding options the regional opportunities increases the performance and accuracy of processing, reduced gas consumption, increases reliability and efficiency of the installation.

The above technical result is achieved in that the device for electrogenerated surface treatment of materials containing a power source, adjustable frequency Converter, which increases the high-frequency resonant transformer with a working needle electrode and gas block with gas and a nozzle for blowing gas into a treatment zone of the material, the output of the adjustable frequency Converter connected high-voltage elektrorazryadnye block plazmogeneratora containing increasing high-frequency resonant transformers, low-voltage windings are connected in parallel and are connected with an adjustable frequency Converter and a high voltage winding its high potential output connected with concentrating electromagnetic energy needle electrode is coaxially located in nozzles having a common, provided the rotameter gasovodnog from gas-dynamic unit, providing the formation of a continuous uniform ionized medium on the surface of the processed material placed on the receiving drum receiving a predetermined processing technology stable frequency rotation system-easy installation the I motor with a voltage regulator.

In the device for electrogenerated surface treatment of materials containing a power source, adjustable frequency Converter, which increases the high-frequency resonant transformer with a working needle electrode, gas block with gas and a nozzle for blowing an inert gas into the treatment area of the material, increasing the high-frequency resonant transformer with a disconnected ferrite core manual plazmogeneratora provided with a hollow tubular needle electrode connected with a high voltage winding and a gas-feeding tube that is placed in one fluoroplastic insulated housing with transformer, and a gas-feeding tube and wire electrical wire plazmogeneratora shared a flexible sheath of insulating material and connected to the power supply and gas-dynamic block.

In the device for electrogenerated surface treatment materials working needle electrode is made in the form of hollow electroanatomic needles of various lengths and radius of curvature, installed the workpiece surface at an angle of 90°.

In the device for electrogenerated surface treatment materials working electrode made in the form of a hollow elektroizolyacionnogo sealed cylinder of material of high electrical the political strength with the metal coating of the inner surface or filled under the pressure of the pairs of conductive metal, United with built-in contact with the working electrode has a length corresponding to the width of the surface of the processed material, connected to the high potential output of the high voltage winding which increases the high-frequency transformer and installed in parallel over a conductive metal spring loaded rotating cylinder, with positive pressure gas from the nozzles is carried out under a cylindrical working electrode by the movement of the material.

In the device for electrogenerated surface treatment materials power plazmogeneratora a "core" and "soft" modes of operation and includes a switch for fixing the "primary" and "soft" modes.

The essence of the proposed device and its operation is illustrated by drawings, where:

figure 1 shows the General view of the device;

figure 2 - view of the device with a cylindrical working electrode;

figure 3 - view of the device for processing corrugated surface;

figure 4 - view of the device for manual use.

The proposed device (figure 1) contains the power supply 1 and an adjustable frequency Converter 2, forming the power supply unit 3, which is connected with a high voltage electrical discharge unit 4, which increases the high-frequency resonant transformer 5, with open cores 6, a low voltage is bmode 7 which are connected in parallel and connected to the frequency Converter 2 of the power supply 3, and the high-voltage winding 8 of their potential conclusions 9 is connected to the needle electrode 10 and the other 11 conclusions the high-voltage windings 8 are open. Gas block 12 and cylinder 13 plasma gas, gear 14 and insulated hose 15 is connected through a rotameter with 16 nozzles 17 arranged at the treated surface 18 of the material supplied to the drum 19 (2) and collected after processing at the receiving drum 20, the receiving rotation from the electric motor 21 connected to the voltage regulator 22 mounted on the frame 23.

In another embodiment (figure 2) when processing a flat surface elastic material (film) 18 working electrode made in the form of a hollow cylinder 24, of insulating material of high electric strength (e.g., glass), metal coated inner surface or filled with pairs of metal 25 under pressure connected with built-in contact 26 and the under film 18 and the hollow cylinder 24 has a metal spring-loaded rotating cylinder 27. Positive pressure gas is fed from the nozzle 17 of the hollow cylindrical working electrode 24 by the movement of the material. The processed film 18 with the feed drum 19 is assembled to the receiving drum 20, receiving the specified rotation speed regulated drive unit, consisting of elektrodvigatel is I'm 21 and voltage regulator 22.

When processing materials with a corrugated surface (figure 3) is used, the hollow tubular electrodes 28 with the edge 29 that combines the functions of a needle and nozzle and located at an angle of 90° the workpiece surface 18. Positive pressure gas to the hollow tubular electrodes is supplied from the gas-dynamic unit 12 to insulated hose 15.

In electrophotometer manual use (figure 4) in one compact case 30 posted by enhancing high frequency resonant transformer 5 to open the ferrite core 6, a low voltage winding 7 and the high voltage winding 8 connected to the hollow tubular electrode 28 with the edge 29, and placed a gas-feeding pipe 31. Connection manual electrophotometer to the power unit 3 and the gas-dynamic unit 12 is carried out through a two insulated electric wire 32 and a gas-feeding pipe 31, is placed in a common, flexible membrane 33 of insulating material.

The device operates as follows.

When turning on the power supply 1 power supply 3 voltage is applied to the frequency Converter 2, which generates a high voltage of frequency equal to the natural frequency of oscillations of a system of high-voltage electric discharge unit 4, consisting of increasing the resonant transformer 5. Simultaneously with the switch is of the power source 1 is turned on, the motor 21 adjustable speed drive of the receiving drum 20 to move the processed material 18, and from gas-dynamic unit 12 within the rotameter 16 volume through the nozzle 17 is supplied to the plasma gas in the area of the working electrode formation region of ionized gas blue color on the surface of the material.

The electric energy of the low-voltage winding 7 is converted due to the increase of high-frequency resonant transformers 5 high-voltage electric discharge unit 4 and the electric charges are concentrated on the potential conclusions 9 high-voltage open winding 8 connected with the working needle electrode occurs in the working period of the high-voltage high-frequency electric discharge, affecting the material being processed. Electric circuit oscillator frequency Converter provides automatic adjustment of the frequency Converter, which corresponds to the frequency of the high-voltage electric discharge unit, providing a stable processing mode that visually defines the appearance of fine high-frequency halogenating beam of blue between the electrode and the workpiece material, accompanied by a slight crackle when discharge in air or larger luminous area ionization supplied to the processing surface of the gas, forming a continuous luminous area is ü blue. Regulation of supplied power, by varying the voltage, and the degree and depth of the surface treatment material - moving the processed material by means of an adjustable electric drive, and partly by the speed and volume of the injected gas. The use of a hollow cylindrical working electrode with internal metal coated or filled under the pressure of the pairs of metal, connected via a metal contact with a high voltage winding, creates the appearance of a barrier discharge and provides high uniformity soft processing across the entire width of the surface of the material by the electric discharge.

The use of hollow tubular needle electrodes, combining the functions of nozzle and electrode having a different length and curvature to the processed surface, allows the treatment of different parts or the entire area of the corrugated surface, with a high degree of orientation and exact dosage of the rotameter gas supplied into the treatment area, which significantly reduces the unproductive consumption of gas and saves gas supplied.

Small portable hand plasmogenerator is intended for use in medicine for the treatment of wound tissue surfaces (soft mode) or removal of tissue neoplasms ("main" mode of work is s). Electricity and gas is one flexible inlet hose, in which is placed an electric wire and a gas-feeding tube. The hollow tubular electrode having a silver needle, connected to a high voltage winding and a gas-feeding tube allows you to fine-specialized processing of small plots of surfaces in the presence of ions of silver having a high bactericidal action. It is possible that the mode of operation of the device in a normal air environment without blowing gas. Nutrition manual plazmogeneratora can be performed from the power supply through the adapter or battery power.

1. Device for electrogenerated surface treatment of materials containing a power source, adjustable frequency Converter, which increases the high-frequency resonant transformer with a working needle electrode and gas block with gas and a nozzle for blowing gas into a treatment zone material, characterized in that the output of the adjustable frequency Converter connected high-voltage elektrorazryadnye block plazmogeneratora containing increasing high-frequency resonant transformers, low-voltage windings are connected in parallel and are connected with an adjustable frequency Converter, and the high is Letnie winding its high potential output connected with concentrating electromagnetic energy needle electrode, centrally located in nozzles having a common equipped with a rotameter gasovodnog from gas-dynamic unit, providing the formation of a continuous uniform ionized medium on the surface of the processed material placed on the receiving drum receiving a predetermined processing technology stable rotation speed of the motor with a voltage regulator.

2. Device for electrogenerated surface treatment of materials containing a power source, adjustable frequency Converter, which increases the high-frequency resonant transformer with a working needle electrode and gas block with gas and a nozzle for blowing an inert gas into a treatment zone material, characterized in that the increase of high-frequency resonant transformer with a disconnected ferrite core manual plazmogeneratora provided with a hollow tubular needle electrode connected with a high voltage winding and a gas-feeding tube that is placed in one fluoroplastic insulated housing with transformer, and a gas-feeding tube and wire electrical wire plazmogeneratora shared a flexible sheath of insulating material and connected to the power supply and gas-dynamic block.

3. The device according to claim 1, characterized who eat that the working needle electrode is made in the form of hollow electroanatomic needles of various lengths and radius of curvature, installed the workpiece surface at an angle of 90°.

4. The device according to claim 1, characterized in that the working electrode is made in the form of a hollow elektroizolyacionnogo sealed cylinder of material of high electrical strength with the metal coating of the inner surface or filled under the pressure of the pairs of conductive metal connected with built-in contact with the working electrode has a length corresponding to the width of the surface of the processed material, connected to the high potential output of the high voltage winding which increases the high-frequency transformer and installed in parallel over a conductive metal spring loaded rotating cylinder, with positive pressure gas from the nozzles is carried out under a cylindrical working electrode by the movement of the material.

5. The device according to claim 2, characterized in that the power plazmogeneratora a "core" and "soft" modes of operation and includes a switch for fixing the "primary" and "soft" modes.



 

Same patents:

FIELD: methods of processing of thermoplastic materials into items.

SUBSTANCE: the invention is pertaining to processing of thermoplastic materials into items, in particular, to processing of the materials containing at least one crystalline either semi-crystalline polymer or a copolymer with a definite fusion temperature, a crystallizing temperature and a vitrification temperature. The method provides for heating of a thermoplastic material up to the temperature exceeding its fusion point and processing of the heated material into an item in a molding system, reducing its temperature from the temperature at least close to the fusion point down to the temperature less than the solidus temperature. A thermoplastic material before and-or during its passing through the molding device is effected by the field of a static electricity formed between a positive electrode being in contact with a thermoplastic material and a negative electrode or "earth". The device for realization of the method contains an extruding head or a molding chamber with a channel for a thermoplastic material passage into it and with one or several walls being in contact with the material. The device is also supplied with a cooling device, which is intended at least for a partial cooling of one or several walls of the head or the chamber, and a device for connection of at least one wall or a part of a wall of the chamber the head, which is in contact with the material the power supply source. The power supply source forms a field of a static electricity between at least this wall or a part of the wall and other wall or a part of a wall of the chamber or the head. The invention allows to reduce friction resistance, to improve mechanical properties of a finished item, ensures a persistence of the consumption of the material passing through the extruder head.

EFFECT: the invention ensures a decreased friction resistance, improved mechanical properties of a commercial item, persistent consumption of the material passing through the extruder head.

32 cl, 17 dwg

The invention relates to a device for material processing high-frequency electric discharge, and can be applied for processing of plastic films and synthetic fibers for the physical modification of their structure and surface

The invention relates to radiation technology, and more particularly to a technology of radiation modification of organic materials, and can be used for creating the technological lines for the production of radiation-modified polymer films

The invention relates to the creation of materials with the set properties using elektroradiotekhnika tools that can find application in chemical, metallurgy, thermal power, food and other industries

The invention relates to the processing of plastics and can be used in chemical, paint, medical and other industries, which manufactured materials with the sticky surface layer and as an adhesive used organic substances, organic solvents

The invention relates to a device for material processing high-frequency electric discharge, and can be applied for processing of plastic films and synthetic fibers for the physical modification of their structure and surface

The invention relates to the production of razor blades, and more specifically to the production of razor blades with a coating of polymeric material deposited on the surface of their edges

The invention relates to dyeing and finishing production of the textile industry, and in particular to methods of printing fabrics made of cellulose fibers

FIELD: working of metals .

SUBSTANCE: device comprises power source, controlled frequency converter, step-up high-frequency resonance transformer with working needle electrode, and gas-dynamic unit with gas duct and nozzle for supplying the gas to the treatment zone. The output of the controlled frequency converter is connected with the high-voltage electrical gas discharging unit of plasma generators having the step-up high-frequency transformers. The low-voltage windings of the transformers are interconnected in parallel and are connected with the controlled frequency converter. The high-voltage windings are connected with the needle electrodes concentrating electromagnetic energy. The electrodes are axially aligned and are mounted inside the nozzle. The nozzles provide the ionized agent to be homogeneously distributed over the surface of the material mounted on the receiving drum that is actuated from the electric motor with the voltage control.

EFFECT: expanded functional capabilities.

5 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: treated samples are placed in vacuum chamber. Vacuum chamber is filled with reaction gas, which contains at least one gas-monomer capable of plasma polymerisation. Plasma is generated by means of ignition and maintenance of double-staged glowing discharge in two spatially separated discharge volumes, and polymer coat is deposited onto surface of treated sample. The first discharge volume is separated from the second discharge volume with the help of perforated electrode, size of holes in which exceeds 0.1 mm. Treated sample is installed on electrode, which is placed in the second discharge volume opposite to perforated electrode. To electrode that serves as holder of treated sample, potential of shift is supplied versus perforated electrode. In the first discharge volume there might be various types of gas discharge used: inductive high-frequency discharge, capacitance high-frequency discharge, DC discharge. Discharge may be maintained in pulse form. In process of plasma polymerisation distance is adjusted between perforated electrode and electrode that serves as holder of treated sample.

EFFECT: independent control of polymer coat deposition speed, structure and properties of deposited coat with high efficiency of technological process.

14 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to decoration of plastic surface, particularly, to applying patterns on plastic substrate. Proposed method comprises: applying layer of paint including magnetically oriented pigments on substrate; affecting said paint by magnetic field to orient pigments along force lines to produce pattern on paint layer, and curing paint on substrate. Note here that magnetic field is generated by one magnetic part implanted in plastic substrate being coated.

EFFECT: higher quality of patterns, higher process efficiency.

8 cl

FIELD: process engineering.

SUBSTANCE: invention relates to printing and can be used for imaging with the help of ink containing colour-changing metal or magnetic plates. Method of leveling multiple directed nonspherical plates supported by lengthwise tape with coating containing nonspherical plates oriented in magnetic field. First and second magnets are arranged at first side of tape feed and second magnet is arranged between first and third magnets on second side of tape feed path. First and third magnets feature identical polarity. Second magnet features polarity unlike that of said first and third magnets. First magnetic field surrounding the feed path exists between first and second magnets. Second magnetic field surrounding the feed path exists between second and third magnets. Magnets are arranged so that multiple nonspherical plates directed by magnetic field and moved along tape feed path make first turn on passing by second magnet during relative displacement of tape and magnets. Proposed method comprises relative displacement of at least tape supporting the plates, or magnets that make two pairs of complementary tractive magnets. Multiple plates oriented in magnetic field can perform multiple turns.

EFFECT: higher light reflectance, better chromatic properties of printed articles.

14 cl, 11 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device metal strip heating in direct-fired furnace. Device for induction preheating of metal strip is arranged ahead of direct-fired furnace in direction of metal strip feed. Air feed means are located ahead of aforesaid device for airing said strip.

EFFECT: higher quality and yield of finished products.

19 cl, 1 dwg

FIELD: construction.

SUBSTANCE: invention relates to synthetic multilayer wall- or floor surface coatings and method for production thereof. Coating contains not containing PVC bearing layer, decorative layer, transparent wear layer and cover layer arranged between bearing layer and decorative layer. Cover layer thickness makes at least 5 mqm, and surface tension equals or exceeds surface tension of decorative layer. Method includes steps of: producing PVC-free bearing layer, producing cover layer composition, formation of cover layer, its thickness is at least 5 mqm, and surface tension equals or exceeds surface tension of decorative layer, by application of coating layer on top of composition not containing PVC bearing layer and drying said composition of coating layer at temperature from 20 to 130 °C or extrusion of cover layer composition for formation of film and application of said film on top of not containing PVC bearing layer , applying decorative layer on top of cover layer, application of transparent wear layer on top of decorative layer.

EFFECT: invention provides creation of surface coating with improved adhesion between different layers and high quality of printing.

15 cl, 7 dwg, 7 ex, 8 tbl

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Increasing strength of connection between resilient rubber element different formulation rubbers prior to curing by accelerated forced diffusion, effecting with ultrahigh frequency current within 2,200–2,450 MHz for 2.5–3.5 minutes at power of 650–700 W. Simultaneously non-uniformly heating resilient rubber element workpiece array in range of 65–75°C with gradual outer surface temperature decreasing from center to periphery within range of 35–25°C. Resilient rubber element together with plates is installed in heated mold and cured by heat transfer from heating plates.

EFFECT: enabling increasing of bonding strength between different formulation rubbers.

1 cl, 2 dwg

FIELD: methods of processing of thermoplastic materials into items.

SUBSTANCE: the invention is pertaining to processing of thermoplastic materials into items, in particular, to processing of the materials containing at least one crystalline either semi-crystalline polymer or a copolymer with a definite fusion temperature, a crystallizing temperature and a vitrification temperature. The method provides for heating of a thermoplastic material up to the temperature exceeding its fusion point and processing of the heated material into an item in a molding system, reducing its temperature from the temperature at least close to the fusion point down to the temperature less than the solidus temperature. A thermoplastic material before and-or during its passing through the molding device is effected by the field of a static electricity formed between a positive electrode being in contact with a thermoplastic material and a negative electrode or "earth". The device for realization of the method contains an extruding head or a molding chamber with a channel for a thermoplastic material passage into it and with one or several walls being in contact with the material. The device is also supplied with a cooling device, which is intended at least for a partial cooling of one or several walls of the head or the chamber, and a device for connection of at least one wall or a part of a wall of the chamber the head, which is in contact with the material the power supply source. The power supply source forms a field of a static electricity between at least this wall or a part of the wall and other wall or a part of a wall of the chamber or the head. The invention allows to reduce friction resistance, to improve mechanical properties of a finished item, ensures a persistence of the consumption of the material passing through the extruder head.

EFFECT: the invention ensures a decreased friction resistance, improved mechanical properties of a commercial item, persistent consumption of the material passing through the extruder head.

32 cl, 17 dwg

FIELD: working of metals .

SUBSTANCE: device comprises power source, controlled frequency converter, step-up high-frequency resonance transformer with working needle electrode, and gas-dynamic unit with gas duct and nozzle for supplying the gas to the treatment zone. The output of the controlled frequency converter is connected with the high-voltage electrical gas discharging unit of plasma generators having the step-up high-frequency transformers. The low-voltage windings of the transformers are interconnected in parallel and are connected with the controlled frequency converter. The high-voltage windings are connected with the needle electrodes concentrating electromagnetic energy. The electrodes are axially aligned and are mounted inside the nozzle. The nozzles provide the ionized agent to be homogeneously distributed over the surface of the material mounted on the receiving drum that is actuated from the electric motor with the voltage control.

EFFECT: expanded functional capabilities.

5 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: method for producing rubber mixture based on diene rubber consists in pretreating for one or two minutes one or more rubber compound components selected from rubber, a sulfur crosslinking agent, a vulcanization accelerator, a vulcanization activator, and a silicic acid filler in an electromagnetic apparatus under the influence of variable electromagnetic field. The electromagnetic field is created by moving magnetic elements from magnetically hard material. Then rubber mixture is made on the traditional mixing equipment.

EFFECT: increasing the cohesive strength of rubber compound, increasing the vulcanization rate, the degree of crosslinking, slowing the reversion, reducing the dosage of vulcanizing group ingredients, which reduces the cost of the rubber mixture and its vulcanizates.

9 ex

Up!