CN111097668A - Processing area surface spraying process method - Google Patents
Processing area surface spraying process method Download PDFInfo
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- CN111097668A CN111097668A CN201811262963.3A CN201811262963A CN111097668A CN 111097668 A CN111097668 A CN 111097668A CN 201811262963 A CN201811262963 A CN 201811262963A CN 111097668 A CN111097668 A CN 111097668A
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- jig
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2505/00—Polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/20—Chlorinated polymers
- B05D2506/25—PVC
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
- B05D2507/02—Polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2508/00—Polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2518/00—Other type of polymers
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Abstract
The invention discloses a surface spraying process method for a processing area, which can fix a workpiece or protect a non-surface processing area in the processing area when the surface of a product is processed. The method comprises the following steps: mounting or placing a workpiece to be processed on a jig, and conveying the jig to a spray coating processing station; spraying the molten or semi-molten polymer material to the processing area of the jig at the spraying processing station by using spraying equipment; and standing and cooling the workpiece and the jig after the spraying treatment to form a polymer thin layer in the processing area. Through thin layer spraying technology, form a polymer thin layer in the processing region on work piece and tool surface to can realize avoiding producing the damage when surface machining to the protection in processing region, the polymer thin layer is closely fixed work piece and tool together simultaneously, and the three forms a novel tool.
Description
Technical Field
The invention relates to the technical field of surface processing, in particular to a surface spraying process method for a processing area.
Background
In the production process of many products, the surface of the product needs to be processed, such as surface roughening, spraying and the like, specifically, laser engraving, surface sand blasting, metal coating and the like, which are common product surface processing methods, generally, when the surface of the product is processed, a workpiece to be processed is mounted through a clamp, then is conveyed to a processing station, and the surface of the workpiece to be processed is processed by using laser, a sand blasting gun and a coating gun.
The laser engraving refers to laser engraving, wherein traces are engraved by chemical and physical changes of surface substances caused by light energy of laser beams, or partial substances are burnt by the light energy, so that patterns and characters required to be etched are displayed; the method can be divided into dot matrix carving and vector cutting according to different carving modes. According to the characteristics of laser etching, the surface of metal or nonmetal can be processed to form various structural characteristics such as a surface roughening structural layer.
Surface blasting utilizes the impact action of high-speed sand flow to clean and coarsen the surface of a matrix. Compressed air is used as power to form a high-speed spray beam to spray materials (copper ore sand, quartz sand, carborundum, iron sand and Hainan sand) to the surface of a workpiece to be treated at a high speed, so that the appearance or the shape of the outer surface of the workpiece is changed, and the surface of the workpiece obtains certain cleanliness and different roughness due to the impact and the cutting action of the spray materials on the surface of the workpiece, so that the mechanical property of the surface of the workpiece is improved, the fatigue resistance of the workpiece is improved, the adhesive force between the spray materials and a coating is increased, the durability of a coating is prolonged, and the leveling and decoration of a coating are facilitated.
Vacuum sputtering, which is called physical coating or physical vapor deposition for short, refers to a process of vaporizing materials into atoms and molecules or ionizing them into ions by a physical method under vacuum conditions, and depositing a thin layer with certain special properties on the surface of the material or workpiece by a vapor process. The method specifically comprises various types, such as vacuum ion evaporation, magnetron sputtering, MBE molecular beam epitaxy, PLD laser sputtering deposition and the like, and the main idea is to divide the method into two types, namely evaporation and sputtering.
Metal coating uses a high velocity stream of particles of molten metal sprayed onto the surface of a substrate to produce a material protection technique for the coating. The metal materials sprayed are most applied to zinc, aluminum and aluminum-zinc alloy, and the applicant applies the metal coating technology to various electronic structures such as contacts, antennas, grounding wires, shielding layers and the like on the shell of an electronic product in the previously proposed application documents to form a unique processing technology of the electronic product.
When a product is subjected to surface processing, laser, sand blasting, particle flow and the like act on a processing area, a surface processing area on the processing area needs to be subjected to surface processing, but surfaces of other products and a clamp do not need to be subjected to surface processing, the problem of protection of a non-surface processing area is rarely considered in the surface processing of the existing product, and the non-surface processing area is damaged due to the problems of sputtering and processing precision in the surface processing.
Disclosure of Invention
The invention aims to provide a surface spraying process method of a processing area, which can fix a workpiece or protect a non-surface processing area in the processing area when the surface of a product is processed.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a process method for spraying the surface of a processing area comprises the following steps:
mounting or placing a workpiece to be processed on a jig, and conveying the jig to a spray coating processing station;
spraying the molten or semi-molten polymer material to the processing area of the jig at the spraying processing station by using spraying equipment;
and standing and cooling the workpiece and the jig after the spraying treatment to form a polymer thin layer in the processing area.
Further, before the polymer material in a molten or semi-molten state is sprayed to the processing area of the jig by using the spraying device, the method further includes: and setting the heating temperature, the spraying air pressure, the height of the spray gun, the temperature of the spraying chamber, the humidity of the spraying chamber, the cooling time of the spraying chamber and the vacuum degree of the spraying chamber according to the characteristics of the high polymer material.
Further, the spraying treatment of the polymer material in the molten or semi-molten state to the processing area of the jig by using the spraying device includes:
and (3) driving a spray gun or fixedly mounting a plurality of spray guns by using a triaxial moving platform to uniformly spray the polymer material in the molten or semi-molten state on the surface of the processing area.
Further, the spraying treatment of the polymer material in the molten or semi-molten state to the processing area of the jig by using the spraying device includes:
and repeatedly spraying for multiple times in the processing area by using a spray gun to form a uniform spraying surface.
Furthermore, the thickness of the polymer thin layer formed by spraying at least one layer is 0.01mm-0.5 mm.
Further, after the workpiece and the jig after the spraying treatment are placed still and cooled, and a polymer thin layer is formed in the processing area, the method further includes:
and removing the polymer thin layer of the area needing surface treatment on the workpiece in laser etching, sand blasting and cutting modes.
Furthermore, the workpiece is a sheet-shaped workpiece, the jig is provided with the sheet-shaped workpiece accommodating groove, and the sheet-shaped workpiece is fixed on the jig through the polymer thin layer.
Furthermore, the workpiece is arranged on the jig, the workpiece and the processing area of the jig are covered by the polymer thin layer, and a protective layer is formed in the processing area.
Further, the high molecular material is any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, polypropylene, polyvinyl chloride, polystyrene, polyethylene, polyurethane, nylon, a mixture of nylon and glass fiber or carbon fiber, and a mixture of polycarbonate and glass fiber or carbon fiber.
The method of the invention has the following advantages:
the application discloses processing area surface spraying process method, in order to current surface machining technology, utilize laser, sandblast, particle flow etc. to carry out surface machining to the surface treatment region of work piece, because the problem of technological characteristic and machining precision, cause the damage to the non-surface treatment region of work piece and tool surface easily, through thin layer spraying technology, form a polymer thin layer in the processing region on work piece and tool surface to can realize the protection to the processing region, avoid producing the damage when surface machining.
Drawings
Fig. 1 is a flow chart of a first method for a surface spray coating process of a machining area according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a three-station polymer molding machine according to an embodiment of the present invention;
fig. 3 is a schematic top view of a jig according to an embodiment of the present invention;
fig. 4 is a schematic side view of a jig according to an embodiment of the present invention.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, an embodiment of the present invention provides a method for performing a surface spraying process on a machining area, the method including the following steps:
s101, mounting or placing a workpiece to be machined on a jig, and conveying the jig to a spray coating machining station;
s102, spraying the molten or semi-molten high polymer material to a processing area of a jig by using spraying equipment at the spraying processing station;
s103, standing and cooling the workpiece and the jig after the spraying treatment to form a polymer thin layer in the processing area.
In an embodiment of the present invention, before the spraying device is used to spray the polymer material in the molten or semi-molten state to the processing area of the fixture, the method further includes: and setting the heating temperature, the spraying air pressure, the height of the spray gun, the temperature of the spraying chamber, the humidity of the spraying chamber, the cooling time of the spraying chamber and the vacuum degree of the spraying chamber according to the characteristics of the high polymer material.
In an embodiment of the present invention, the spraying, by using a spraying device, the polymer material in a molten or semi-molten state to the processing area of the fixture includes:
and (3) driving a spray gun or fixedly mounting a plurality of spray guns by using a triaxial moving platform to uniformly spray the polymer material in the molten or semi-molten state on the surface of the processing area.
In an embodiment of the present invention, the spraying, by using a spraying device, the polymer material in a molten or semi-molten state to the processing area of the fixture includes:
and repeatedly spraying for multiple times in the processing area by using a spray gun to form a uniform spraying surface.
In the embodiment of the invention, the thickness of the polymer thin layer formed by spraying at least one layer is 0.01-0.5 mm.
In an embodiment of the present invention, after the workpiece and the jig after the spraying treatment are left to stand and cooled, and a polymer thin layer is formed in the processing area, the method further includes:
and removing the polymer thin layer of the area needing surface treatment on the workpiece in laser etching, sand blasting and cutting modes.
In an embodiment of the present invention, the workpiece is a thin plate-shaped workpiece, the jig is provided with the thin plate-shaped workpiece accommodating groove, and the thin plate-shaped workpiece is fixed on the jig through the polymer thin layer.
In the embodiment of the invention, the workpiece is arranged on the jig, the workpiece and the processing area of the jig are covered by the polymer thin layer, and a protective layer is formed in the processing area.
In the embodiment of the present invention, the polymer material is any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, polypropylene, polyvinyl chloride, polystyrene, polyethylene, polyurethane, nylon, a mixture of nylon and glass fiber or carbon fiber, and a mixture of polycarbonate and glass fiber or carbon fiber.
Specifically, as shown in fig. 2, a three-station polymer molding machine for implementing the surface spray coating process is provided, which includes a frame 6, wherein a lifting device, a thermostat 14, a humidistat 16, a vacuum pump 19, a high-temperature melting device 12, and a molding chamber 18 are arranged inside the frame 6;
the bottom of the frame 6 is provided with a mounting plate 4, the mounting plate is provided with a lifting device, the lifting device comprises a cylinder 3, an object carrying support frame 2 and an object carrying table 8, the telescopic end of the cylinder 3 is connected with the object carrying support frame 2, the upper end of the object carrying support frame 2 is connected with the object carrying table 8, a nozzle group 9 is arranged above the object carrying table 8, and the nozzle group 9 is arranged on the lower bottom surface of a cover plate 11 in an array manner;
a forming chamber 18 is arranged between the cover plate 11 and the objective table 8, a thermostat 14, a humidistat 16 and a vacuum pump 19 are respectively arranged on the inner wall of a lower cavity of the objective table 8, a cavity arranged between the upper end surface of the cover plate 11 and the top surface of the rack is divided into two separate cavities, wherein the left separate cavity is a high-temperature melting cavity 14, a high-temperature melting device 12 is arranged on the right separate cavity at the upper end of the cover plate, a circuit control end of the high-temperature melting device 12 is connected with a heating device in the left separate cavity, and a feed end of the nozzle group 9 is communicated with the high-temperature melting;
the top end of the frame 6 is provided with a feed hopper 13, and the feed hopper 13 is communicated with a high-temperature melting cavity 14.
Specifically, the nozzle group 9 comprises a plurality of nozzles, the nozzles are uniformly arranged on the lower side surface of the cover plate 11, the nozzle openings of the nozzles face the object stage in the forming chamber 18, and the feed inlets of the nozzles are simultaneously connected with a high-temperature melting device and a high-pressure air source. The high temperature melting device 12 is arranged on the upper part of the cover plate 11, heating elements are uniformly arranged on the outer side of the high temperature melting device, and a temperature controller is arranged on the high temperature melting device. And the cover plate 11 is provided with an installation lock mechanism and a bounce mechanism. Thermostat 14, humidistat 16, vacuum pump 19 install in forming chamber below rear side, and thermostat 14 is provided with heating element, and this heating element evenly distributed is terminal surface under forming chamber objective table 8, side installation temperature controller, humidity controller, vacuum probe in forming chamber 18, temperature controller, humidity controller, vacuum probe are connected respectively thermostat 14, humidistat 16, vacuum pump 19 to be linked together humidistat 16, vacuum pump 19 and forming chamber through the pipeline. The control box 7 is arranged on the front side of the lower part of the forming chamber and is provided with a control panel, the control panel is electrically connected with the thermostat, the humidistat, the vacuum pump, the high-temperature melting device and the nozzle group, and the control box is provided with a time controller, an electric element and an operation button, so that manual and automatic switching and control can be realized. The forming chamber objective table 8, the feeding end 1 and the discharging end 10 serve as three stations to form a large platform, feeding and discharging efficiency is improved, guide rails, limiting devices and the like can be arranged as required, and efficiency is further improved.
In addition, the foot pad 5 is arranged at the bottom of the rack, universal wheels can be arranged at the bottom of the rack, the foot pad can be set to be in a lifting type, the universal wheels can move after the foot pad is lifted, the rack is lifted after the foot pad is lowered, and the universal wheels are suspended.
The polymer forming machine pours the material into the high-temperature melting device through the feed hopper, and the nozzle group is communicated with an external high-pressure air source. After the materials are melted, opening a cover plate of the forming machine, jacking the objective table by using the air cylinder, placing the workpiece on the objective table of the forming chamber, sinking the objective table, closing the cover plate, and opening the vacuum pump after the temperature and the humidity reach set values, wherein the forming chamber is in a vacuum environment; and opening the nozzle group, uniformly spraying the melted high polymer material on the workpiece, standing for a plurality of times, opening the cover plate, taking out the workpiece, and then, further processing the workpiece in the next procedure.
As shown in fig. 3 and 4, the product is mounted on the object stage 8 through a novel jig 71, and the novel jig 71 includes: a tray 711 disposed at the lowermost layer; the material grid 712 is fixedly connected to the surface of the tray, and the material grid 712 at least comprises a groove 713 for placing a product; the protective material layer 714 is formed by processing a high polymer material, and then spraying, adsorbing, pressing, adhering and the like are adopted to form a protective layer on the surface of the material grid 2 and the surface of the product in the material grid groove body, and meanwhile, the material grid 712, the product in the material grid groove body and the exposed tray part are fixedly connected together to form a whole through the protective layer.
The application discloses processing area surface spraying process method, in order to current surface machining technology, utilize laser, sandblast, particle flow etc. to carry out surface machining to the surface treatment region of work piece, because the problem of technological characteristic and machining precision, cause the damage to the non-surface treatment region of work piece and tool surface easily, through thin layer spraying technology, form a polymer thin layer in the processing region on work piece and tool surface to can realize the protection to the processing region, avoid producing the damage when surface machining.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A process method for spraying the surface of a processing area is characterized by comprising the following steps:
mounting or placing a workpiece to be processed on a jig, and conveying the jig to a spray coating processing station;
spraying the molten or semi-molten polymer material to the processing area of the jig at the spraying processing station by using spraying equipment;
and standing and cooling the workpiece and the jig after the spraying treatment to form a polymer thin layer in the processing area.
2. The method for spraying the surface of the processing area according to claim 1, wherein before the step of spraying the polymer material in the molten or semi-molten state to the processing area of the jig by using the spraying device, the method further comprises: and setting the heating temperature, the spraying air pressure, the height of the spray gun, the temperature of the spraying chamber, the humidity of the spraying chamber, the cooling time of the spraying chamber and the vacuum degree of the spraying chamber according to the characteristics of the high polymer material.
3. The surface spraying process method for the processing area according to claim 1, wherein the step of spraying the polymer material in a molten or semi-molten state to the processing area of the jig by using the spraying equipment comprises the following steps:
and (3) driving a spray gun or fixedly mounting a plurality of spray guns by using a triaxial moving platform to uniformly spray the polymer material in the molten or semi-molten state on the surface of the processing area.
4. The surface spraying process method for the processing area according to claim 1, wherein the step of spraying the polymer material in a molten or semi-molten state to the processing area of the jig by using the spraying equipment comprises the following steps:
and repeatedly spraying for multiple times in the processing area by using a spray gun to form a uniform spraying surface.
5. The process of claim 4, wherein the thickness of the polymer film formed by spraying at least one layer is 0.01mm-0.5 mm.
6. The method of claim 1, wherein the workpiece and the jig after the spraying treatment are left to stand and cool, and after a polymer thin layer is formed in the machining region, the method further comprises:
and removing the polymer thin layer of the area needing surface treatment on the workpiece in laser etching, sand blasting and cutting modes.
7. The method according to claim 1, wherein the workpiece is a thin plate-shaped workpiece, the jig is provided with the thin plate-shaped workpiece accommodating groove, and the thin plate-shaped workpiece is fixed on the jig through the polymer thin layer.
8. The method as claimed in claim 1, wherein the workpiece is disposed on the jig, the workpiece and the processing region of the jig are covered by the polymer thin layer, and a protective layer is formed on the processing region.
9. The method for spray coating the surface of the processing area according to claim 1, wherein the polymer material is any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, polypropylene, polyvinyl chloride, polystyrene, polyethylene, polyurethane, nylon, a mixture of nylon and glass fiber or carbon fiber, and a mixture of polycarbonate and glass fiber or carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262963.3A CN111097668A (en) | 2018-10-27 | 2018-10-27 | Processing area surface spraying process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262963.3A CN111097668A (en) | 2018-10-27 | 2018-10-27 | Processing area surface spraying process method |
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| Publication Number | Publication Date |
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| CN111097668A true CN111097668A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262963.3A Pending CN111097668A (en) | 2018-10-27 | 2018-10-27 | Processing area surface spraying process method |
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| CN (1) | CN111097668A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753344A (en) * | 2010-02-10 | 2012-10-24 | 乐金华奥斯株式会社 | Hard coating forming method |
| CN208004191U (en) * | 2018-01-19 | 2018-10-26 | 深圳市泽华永盛技术有限公司 | It is a kind of to cover the novel jig being fixed as one |
-
2018
- 2018-10-27 CN CN201811262963.3A patent/CN111097668A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753344A (en) * | 2010-02-10 | 2012-10-24 | 乐金华奥斯株式会社 | Hard coating forming method |
| CN208004191U (en) * | 2018-01-19 | 2018-10-26 | 深圳市泽华永盛技术有限公司 | It is a kind of to cover the novel jig being fixed as one |
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Application publication date: 20200505 |