CN114773966A - Vacuum coating process - Google Patents

Vacuum coating process Download PDF

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Publication number
CN114773966A
CN114773966A CN202210327712.9A CN202210327712A CN114773966A CN 114773966 A CN114773966 A CN 114773966A CN 202210327712 A CN202210327712 A CN 202210327712A CN 114773966 A CN114773966 A CN 114773966A
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China
Prior art keywords
parts
vacuum coating
spraying
workpiece
coating process
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CN202210327712.9A
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Chinese (zh)
Inventor
付继亮
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Weifang Moxuan Wheel Hub Technology Co ltd
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Weifang Moxuan Wheel Hub Technology Co ltd
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Application filed by Weifang Moxuan Wheel Hub Technology Co ltd filed Critical Weifang Moxuan Wheel Hub Technology Co ltd
Priority to CN202210327712.9A priority Critical patent/CN114773966A/en
Publication of CN114773966A publication Critical patent/CN114773966A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/57—Three layers or more the last layer being a clear coat
    • B05D7/576—Three layers or more the last layer being a clear coat each layer being cured, at least partially, separately
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D147/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/08—Epoxidised polymerised polyenes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C23C14/165—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
    • C23C14/325—Electric arc evaporation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention belongs to the technical field of surface treatment, and particularly relates to a vacuum coating process, which comprises the steps of spraying transparent paint on the surface of a workpiece subjected to vacuum coating, wherein the transparent paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 80-99 parts of polybutadiene epoxy resin, 1-5 parts of additive and 1-5 parts of assistant; the mass ratio of the component A to the solvent is 1: 5-10. In addition, the invention can effectively avoid the cracking caused by spraying the transparent paint by regulating and controlling the components and the proportion of the transparent paint and adopting step-by-step spraying. Compared with the traditional water electroplating, the invention effectively reduces sewage discharge and heavy metal pollution and greatly saves cost.

Description

Vacuum coating process
Technical Field
The invention belongs to the technical field of surface treatment, and particularly relates to a vacuum coating process.
Background
Vacuum sputtering, which is called physical coating or physical vapor deposition for short, refers to introducing a suitable inert gas as a medium in a vacuum environment, impacting a target material with the inert gas at an accelerated speed, so that atoms on the surface of the target material are impacted, and a coating is formed on the surface.
At present, after a metal coating is sputtered in vacuum, a layer of transparent paint needs to be sprayed on the surface of the metal coating because the metal coating is very thin, so as to achieve the purposes of wear resistance, corrosion resistance and oxidation resistance. However, the metal used for the metal coating is very hard (such as chromium), and due to the hard characteristic of the metal itself and the dynamic property of the clear lacquer in the high-temperature curing process, when the metal coating is combined with the clear lacquer, the metal coating and the clear lacquer can fall off or surface cracks, so that the final product yield is low.
Disclosure of Invention
Aiming at the problems, the invention provides a vacuum coating process, which can be used for spraying transparent paint on the surface of a metal coating without dropping or cracking the transparent paint, thereby effectively improving the product percent of pass.
The vacuum coating process is to spray transparent paint on the surface of a workpiece after vacuum coating; the clear paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 80-99 parts of polybutadiene epoxy resin, 1-5 parts of additive and 1-5 parts of assistant; the mass ratio of the component A to the solvent is 1: 5-10.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: hollow glass beads 3: 2.
The auxiliary agent is selected from n-butyl alcohol or methanol or a mixture thereof. And (2) n-butanol: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 185-200 ℃ with the thickness of 80-120 mu m, curing for 15-25 minutes, and inspecting the surface condition of the workpiece; if the product is qualified, directly carrying out the next procedure; if the materials are not qualified, sequentially performing ash supplement, polishing, cleaning, powder spraying and curing processes until the materials are qualified;
(3) spraying 15-30 μm of matte black primer at 150-175 ℃ and curing for 25-40 minutes;
(4) spraying medium paint at 180-230 deg.c of 20-75 micron for 20-45 min;
(5) vacuum coating; preparing a metal or metal compound coating layer with the thickness of 0.3-7.5 mu m on the surface of the workpiece after the medium paint is sprayed;
(6) spraying transparent paint at 150-190 deg.c for 25-40 min to 20-35 micron and curing.
The matt black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 70-75 parts of resin, 10-15 parts of pigment and 5-10 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol methyl ether acetate.
The medium paint comprises the following raw materials of 50-60 parts of polybutadiene resin, 20-30 parts of toluene, 10-20 parts of n-butyl acetate and 1-10 parts of ethyl acetate.
The solvent comprises, by weight, 5-15 parts of ethylene glycol dibutyl ether, 35-45 parts of naphtha, 10-20 parts of an aromatic hydrocarbon solvent, 10-20 parts of propylene glycol methyl ether acetate and 15-25 parts of dimethylacetamide.
The system adopted by the vacuum coating is a multi-arc ion coating system or a vacuum magnetron sputtering coating system; the workpiece to be processed is a hub.
The vacuum coating process comprises the following steps: adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree is 0.02-0.05Pa, filling working gas, maintaining the air pressure at 0.1-5Pa, starting an arc ion coating power supply, controlling the voltage at 20-50V, the current at 30-80A and the coating time at 90-400 s, applying a negative bias of 150-850V between the hub and the chamber in the coating process, controlling the temperature in the chamber at 30-300 ℃, controlling the distance between the target and the workpiece at 50-500mm in the vacuum coating step and controlling the deposition thickness at 0.5-7.5 microns.
The vacuum coating process comprises the following steps: adopts magnetron sputtering coating, and comprises the following specific steps: pre-vacuumizing, when the vacuum degree reaches 0.02-0.05Pa, filling working gas, maintaining the air pressure at 0.8-5Pa, starting a magnetron sputtering coating power supply, wherein the voltage is 800V, the current is 20-60A, the coating time is 90-400 s, and in the coating process, a negative bias of 150V and 850V are applied between the hub and the chamber, and the temperature in the chamber is 30-200 ℃.
In the invention, the powder spraying process adopts ash powder for spraying. The ash powder is adopted because of better leveling property; the main components of the ash powder are titanium dioxide and epoxy resin. According to the invention, the powder priming replaces the water-plated copper-nickel priming, the powder firmly wraps the workpiece to be processed, so that the blank of the workpiece to be processed is not contacted with the outside and can not be corroded and oxidized any more, and the surface of the powder is plated with chrome, thereby achieving the electroplating effect with the surface as bright as a mirror, and improving the appearance and performance quality of the hub to a higher standard.
The ash supplementing process adopts putty ash to supplement ash, can make up the slag vacancy defect of the casting blank, and more importantly, has lower cost than water electroplating.
In the invention, the polybutadiene epoxy resin is a main component of the transparent paint, has excellent adhesive property and small curing shrinkage; the polymethyl methacrylate can improve the weather resistance of the clear paint and can avoid the occurrence of cracks. The volume expansion coefficient of the n-butyl alcohol and the methanol is lower, and the cracking caused by thermal expansion and cold contraction in the later period of the clear paint is avoided.
The hollow glass beads added in the invention have the following functions: (1) because the hollow glass beads are tiny round spheres, the hollow glass beads have better fluidity in liquid resin and are isotropic, the defect that the shrinkage rates of different parts are inconsistent due to orientation cannot be caused; (2) according to the invention, the hollow glass beads are introduced into the resin system, so that the thermal expansion coefficient of the resin can be effectively reduced; (3) the hollow glass beads have a buffering effect, provide buffering in the expansion and contraction process, prevent cracking, and once cracking occurs, the cracks pass through the hollow glass beads and stop further diffusion after the hollow glass beads are torn, so that the cracking range is prevented from being further expanded.
Preferably, the transparent paint is sprayed on the surface of the workpiece in a step-by-step spraying manner; the method comprises the following specific steps:
(6-1) weighing the raw materials of the transparent paint in proportion for later use;
(6-2) uniformly mixing part of polybutadiene epoxy resin, hollow glass beads, part of auxiliary agent and part of solvent to obtain transparent paint A;
(6-3) uniformly mixing the residual polybutadiene epoxy resin, the polymethyl methacrylate, the residual assistant and the residual solvent to obtain transparent paint B;
(6-4) spraying and coating the transparent paint A on the surface of the workpiece subjected to vacuum coating, wherein the spraying thickness is 10-20 microns; spraying the transparent paint B on the surface of the vacuum coated workpiece 15-20min after spraying, wherein the spraying thickness is 0-25 mu m.
The transparent paint A can form a transparent paint film containing a hollow glass bead structure on the surface of a workpiece, the transparent paint B is coated on the surface of the transparent paint film containing the hollow glass bead structure to form a compact transparent paint film, the transparent paint film containing the hollow glass bead structure is used as a transition layer, the thermal stress in the rapid temperature rising and reducing process is absorbed, a space is provided for the release of the thermal stress, the aggregation of the thermal stress is relieved, the thermal expansion between the workpiece substrate and the compact transparent paint film, and the thermal expansion between the workpiece substrate and the transparent paint film containing the hollow glass bead structure are coordinated, so that the film can resist more times of cold and heat changes without cracking.
The matt black primer plays a role in starting and stopping, and is combined with the medium paint at the upper part and the powder at the lower part. The assistant in the matt black primer is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol methyl ether acetate, and the mixture has excellent emulsibility and solubility, plays a role of a surfactant to a certain extent, and ensures that all components of the matt black primer are uniformly mixed and effectively combined with an upper part and a lower part. Preferably, the mass ratio of xylene: ethylene glycol butyl ether: n-butanol: methyl isobutyl ketone: propylene glycol methyl ether acetate-2: 1:1:2: 2. The resin is preferably an epoxy resin, and the pigment is conventionally selected in the art.
The solvent plays a role in dissolving the matt black primer and the clear paint.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention relates to a combination of hub coating and water electroplating, which uses the advantages of the hub coating and the water electroplating for reference, solves the disadvantages of the hub coating and the water electroplating, uses powder priming to replace water-plated copper-nickel priming, firmly wraps the workpiece by the powder, prevents the workpiece blank from contacting with the outside and being corroded and oxidized, and coats a metal film on the surface of the powder, thereby achieving the electroplating effect with the surface as bright as a mirror, thoroughly solving the problems of aluminum surface oxidation and filiform corrosion in the hub fine polishing process, solving the problems of rusting and long spots and environmental pollution caused by peeling of the traditional water electroplating, and improving the appearance and the performance quality of the hub to higher standards.
(2) The production process is green and environment-friendly, the test of the cases in an OEM factory can reach more than 840h, and is still good, and the test time of the cases in the OEM factory exceeds more than ten times of the test standard of the traditional water electroplating performance, so that the quality is completely superior to the water electroplating and common full-coating process of the wheel hub, the defect of slag vacancy of the casting blank can be overcome, the cost is lower than that of the water electroplating, and more profit spaces are created for customers.
(3) The invention has no adverse effect on external environments such as water, soil, air and the like during production, is green and sustainable in development, and can directly recycle even scrapped wheels.
(4) In addition, the invention adopts a specific spraying process by regulating and controlling the components and the proportion of the transparent paint, the matt black primer and the medium paint, so that the matt black primer, the medium paint and the transparent paint can be effectively combined, and the cracking caused after the transparent paint is sprayed can be effectively avoided. Compared with the traditional water electroplating, the invention effectively reduces the sewage discharge and heavy metal pollution and greatly saves the cost.
(5) The invention is mainly used on metal surfaces with poor compactness and rough appearance and metal surfaces which are easy to corrode and rust, in particular to aluminum alloy hubs and steel wheels, powder is used for priming to compensate for the roughness of the metal surfaces or slag voids caused by casting, the vacuum coating of the surfaces plays a role in protecting workpieces from corrosion and oxidation, and the transparent paint sprayed on the surfaces of the vacuum coatings plays a role in protecting the coatings from wear and corrosion.
Detailed Description
Example 1
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the clear paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 80 parts of polybutadiene epoxy resin, 1 part of additive and 1 part of auxiliary agent; the mass ratio of the component A to the solvent is 1: 7.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: hollow glass beads 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 185 ℃, solidifying for 20 minutes, and inspecting the surface condition of the workpiece, wherein the thickness of the powder is 120 microns; if the product is qualified, directly performing the next procedure; if the materials are not qualified, sequentially performing ash supplement, polishing, cleaning, powder spraying and curing processes until the materials are qualified;
(3) spraying 30 mu m of matte black primer at 150 ℃ and curing for 30 minutes;
(4) spraying medium paint at 230 ℃ for 30 microns, and curing for 30 minutes;
(5) vacuum coating; preparing a metal or metal compound coating layer with the thickness of 7.5 mu m on the surface of the workpiece after the medium paint is sprayed;
(6) spraying transparent paint at 170 ℃ for 20 mu m, and curing for 30 minutes.
The matt black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 70 parts of resin, 12 parts of pigment and 10 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
The medium paint comprises, by weight, 60 parts of polybutadiene resin, 20 parts of toluene, 10 parts of n-butyl acetate and 1 part of ethyl acetate.
The solvent comprises, by weight, 5 parts of ethylene glycol dibutyl ether, 45 parts of naphtha, 10 parts of an aromatic solvent, 20 parts of propylene glycol methyl ether acetate and 15 parts of dimethylacetamide.
The system adopted by the vacuum coating is a multi-arc ion coating system;
the workpiece to be processed is a hub.
The metal is selected from chromium.
The vacuum coating process comprises the following steps: adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.02Pa, filling working gas, maintaining the air pressure at 0.1Pa, starting an arc ion coating power supply, controlling the voltage to be 20V, the current to be 30A and the coating time to be 90s, adding 150V of negative bias between a hub and a chamber in the coating process, controlling the temperature in the chamber to be 30 ℃, controlling the distance between a target and a workpiece in the vacuum coating step to be 50mm, and controlling the deposition thickness to be 0.5 micron.
Example 2
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the clear paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 99 parts of polybutadiene epoxy resin, 5 parts of additive and 5 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 10.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: the hollow glass bead is 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 200 ℃, curing for 15 minutes, and inspecting the surface condition of the workpiece, wherein the thickness of the powder is 80 microns; if the product is qualified, directly carrying out the next procedure; if the materials are not qualified, sequentially performing ash supplementing, polishing, cleaning, powder spraying and curing procedures until the materials are qualified;
(3) spraying 15 mu m of matt black primer at 175 ℃ and curing for 25 minutes;
(4) spraying medium paint of 45 microns at 180 ℃ for 20 minutes;
(5) vacuum coating; preparing a metal or metal compound coating layer of 0.3 mu m on the surface of the workpiece sprayed with the medium paint;
(6) spraying transparent paint at 190 ℃ for 35 mu m, and curing for 40 minutes.
The matte black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 75 parts of resin, 10 parts of pigment and 7 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol methyl ether acetate.
The medium paint comprises, by weight, 50 parts of polybutadiene resin, 30 parts of toluene, 15 parts of n-butyl acetate and 5 parts of ethyl acetate.
The solvent comprises, by weight, 15 parts of ethylene glycol dibutyl ether, 35 parts of naphtha, 20 parts of aromatic solvent, 10 parts of propylene glycol methyl ether acetate and 25 parts of dimethylacetamide.
The system adopted by the vacuum coating is a vacuum magnetron sputtering coating system;
the workpiece to be processed is a hub.
The metal is selected from chromium.
The vacuum coating process comprises the following steps: adopts magnetron sputtering coating, and comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.02Pa, filling working gas, maintaining the air pressure at 0.8Pa, starting a magnetron sputtering coating power supply, wherein the voltage is 200V, the current is 20A, the coating time is 90s, and in the coating process, a negative bias voltage of 150V is applied between a hub and a room, and the indoor temperature is 100 ℃.
Example 3
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the clear paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 95 parts of polybutadiene epoxy resin, 2 parts of additive and 3 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 5.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: hollow glass beads 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol by mass ratio: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 190 ℃ to the thickness of 100 mu m, curing for 25 minutes, and inspecting the surface condition of the workpiece; if the product is qualified, directly carrying out the next procedure; if the materials are not qualified, sequentially performing ash supplement, polishing, cleaning, powder spraying and curing processes until the materials are qualified;
(3) spraying matt black primer of 25 mu m at 165 ℃ and curing for 30 minutes;
(4) spraying medium paint at 200 ℃ for 20 mu m, and curing for 45 minutes;
(5) vacuum coating; preparing a metal or metal compound coating with the thickness of 4.5 microns on the surface of the workpiece sprayed with the medium paint;
(6) spraying clear paint at 150 ℃ for 25 mu m, and curing for 25 minutes.
The matt black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 72 parts of resin, 15 parts of pigment and 5 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
The medium paint comprises, by weight, 53 parts of polybutadiene resin, 24 parts of toluene, 17 parts of n-butyl acetate and 6 parts of ethyl acetate.
The solvent comprises, by weight, 10 parts of ethylene glycol dibutyl ether, 40 parts of naphtha, 15 parts of an aromatic hydrocarbon solvent, 15 parts of propylene glycol methyl ether acetate and 20 parts of dimethylacetamide.
The system adopted by the vacuum coating is a multi-arc ion coating system;
the workpiece to be processed is a hub.
The metal is selected from chromium.
The vacuum coating process comprises the following steps: adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.05Pa, filling working gas, maintaining the air pressure at 5Pa, starting an arc ion plating power supply, controlling the voltage at 50V, the current at 80A and the plating time at 400s, adding a negative bias voltage of 850V between a hub and a chamber in the plating process, controlling the temperature in the chamber at 300 ℃, controlling the distance between a target and a workpiece in the vacuum plating step to be 500mm, and controlling the deposition thickness to be 5 micrometers.
Example 4
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the clear paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 95 parts of polybutadiene epoxy resin, 2 parts of additive and 3 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 8.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: hollow glass beads 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 190 ℃ with the thickness of 100 mu m, curing for 20 minutes, and inspecting the surface condition of the workpiece; if the product is qualified, directly performing the next procedure; if the materials are not qualified, sequentially performing ash supplementing, polishing, cleaning, powder spraying and curing procedures until the materials are qualified;
(3) spraying 20 mu m of matte black primer at 165 ℃ and curing for 30 minutes;
(4) spraying medium paint at 195 ℃ for 25 mu m, and curing for 25 minutes;
(5) vacuum coating; preparing a metal or metal compound coating layer with the thickness of 3.5 mu m on the surface of the workpiece after the medium paint is sprayed;
(6) spraying transparent paint 35 μm at 175 deg.c for 30 min.
The clear paint is sprayed on the surface of the workpiece in a step-by-step spraying manner; the method comprises the following specific steps:
(6-1) weighing the raw materials of the transparent paint in proportion for later use;
(6-2) uniformly mixing part of polybutadiene epoxy resin, hollow glass beads, part of auxiliary agent and part of solvent to obtain transparent paint A;
(6-3) uniformly mixing the residual polybutadiene epoxy resin, the polymethyl methacrylate, the residual assistant and the residual solvent to obtain transparent paint B;
(6-4) spraying and coating the transparent paint A on the surface of the workpiece subjected to vacuum coating, wherein the spraying thickness is 10 microns; and curing for 15min after spraying, spraying the transparent paint B on the surface of the workpiece after vacuum coating, wherein the spraying thickness is 25 mu m, and curing for 15 min.
The matt black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 74 parts of resin, 12 parts of pigment and 8 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
The medium paint comprises, by weight, 53 parts of polybutadiene resin, 24 parts of toluene, 17 parts of n-butyl acetate and 6 parts of ethyl acetate.
The solvent comprises, by weight, 10 parts of ethylene glycol dibutyl ether, 40 parts of naphtha, 15 parts of an aromatic hydrocarbon solvent, 15 parts of propylene glycol methyl ether acetate and 20 parts of dimethylacetamide.
The system adopted by the vacuum coating is a multi-arc ion coating system;
the workpiece to be processed is a hub.
The metal is selected from chromium.
The vacuum coating process comprises the following steps: adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.05Pa, filling working gas, maintaining the air pressure at 3Pa, starting an arc ion coating power supply, controlling the voltage to be 20V, the current to be 30A and the coating time to be 100s, adding negative bias voltage to 350V between a hub and a chamber in the coating process, controlling the temperature in the chamber to be 200 ℃, controlling the distance between a target and a workpiece to be 400mm in the vacuum coating step and controlling the deposition thickness to be 3.5 microns.
Example 5
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the transparent paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 83 parts of polybutadiene epoxy resin, 3 parts of additive and 4 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 6.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: the hollow glass bead is 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 200 ℃, curing for 18 minutes, and inspecting the surface condition of the workpiece, wherein the thickness of the powder is 90 microns; if the product is qualified, directly performing the next procedure; if the materials are not qualified, sequentially performing ash supplementing, polishing, cleaning, powder spraying and curing procedures until the materials are qualified;
(3) spraying 28 microns of matte black primer at 165 ℃ and curing for 30 minutes;
(4) spraying medium paint with the thickness of 35 mu m at the temperature of 220 ℃ and curing for 38 minutes;
(5) vacuum coating; preparing a metal or metal compound coating layer with the thickness of 5 microns on the surface of the workpiece after the medium paint is sprayed;
(6) spraying transparent paint at 185 deg.c for 20 micron and curing for 25 min.
The clear paint is sprayed on the surface of the workpiece in a step-by-step spraying manner; the method comprises the following steps:
(6-1) weighing the raw materials of the transparent paint in proportion for later use;
(6-2) uniformly mixing part of polybutadiene epoxy resin, hollow glass beads, part of auxiliary agent and part of solvent to obtain transparent paint A;
(6-3) uniformly mixing the residual polybutadiene epoxy resin, the polymethyl methacrylate, the residual auxiliary agent and the residual solvent to obtain transparent paint B;
(6-4) spraying and coating the transparent paint A on the surface of the workpiece subjected to vacuum coating, wherein the spraying thickness is 10 microns; spraying the transparent paint B on the surface of the workpiece after vacuum coating for 10min after spraying, wherein the spraying thickness is 10 mu m, and curing for 15 min.
The matte black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 70 parts of resin, 10 parts of pigment and 7 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
The medium paint comprises, by weight, 55 parts of polybutadiene resin, 22 parts of toluene, 12 parts of n-butyl acetate and 2 parts of ethyl acetate.
The solvent comprises, by weight, 7 parts of ethylene glycol dibutyl ether, 27 parts of naphtha, 11 parts of an aromatic hydrocarbon solvent, 13 parts of propylene glycol methyl ether acetate and 17 parts of dimethylacetamide.
The system adopted by the vacuum coating is a vacuum magnetron sputtering coating system;
the vacuum coating process comprises the following steps: adopts magnetron sputtering coating, and comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.03Pa, filling working gas, maintaining the air pressure at 1.2Pa, starting a magnetron sputtering coating power supply, wherein the voltage is 500V, the current is 50A, the coating time is 200s, and in the coating process, a negative bias of 650V is applied between the hub and the room, and the indoor temperature is 100 ℃.
The workpiece to be processed is a hub.
The metal is selected from chromium.
Example 6
A vacuum coating process, spraying transparent paint on the surface of a workpiece after vacuum coating; the transparent paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 97 parts of polybutadiene epoxy resin, 1 part of additive and 2 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 9.
The additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: the hollow glass bead is 3: 2.
The auxiliary agent is selected from a mixture of n-butanol and methanol. And (2) n-butanol by mass ratio: methanol is 1: 1.
The method comprises the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 200 ℃, solidifying for 20 minutes, and inspecting the surface condition of the workpiece, wherein the thickness of the powder is 110 microns; if the product is qualified, directly carrying out the next procedure; if the materials are not qualified, sequentially performing ash supplement, polishing, cleaning, powder spraying and curing processes until the materials are qualified;
(3) spraying 30 mu m of matte black primer at 170 ℃ and curing for 40 minutes;
(4) spraying medium paint with the thickness of 35 mu m at the temperature of 225 ℃ and curing for 30 minutes;
(5) vacuum coating; preparing a metal or metal compound coating layer with the thickness of 7.5 mu m on the surface of the workpiece after the medium paint is sprayed;
(6) spraying transparent paint at 155 ℃ for 30 mu m, and curing for 40 minutes.
The transparent paint is sprayed on the surface of the workpiece in a step-by-step spraying mode; the method comprises the following steps:
(6-1) weighing the raw materials of the transparent paint in proportion for later use;
(6-2) uniformly mixing part of polybutadiene epoxy resin, part of hollow glass beads, part of auxiliaries and part of solvent to obtain a transparent paint A;
(6-3) uniformly mixing the residual polybutadiene epoxy resin, the polymethyl methacrylate, the residual auxiliary agent and the residual solvent to obtain transparent paint B;
(6-4) spraying the transparent paint A on the surface of the workpiece subjected to vacuum coating, wherein the spraying thickness is 20 micrometers; spraying the transparent paint B on the surface of the workpiece after vacuum coating 20min after spraying, wherein the spraying thickness is 10 mu m, and curing for 20 min.
The matte black primer comprises a component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 75 parts of resin, 15 parts of pigment and 5 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
The medium paint comprises, by weight, 58 parts of polybutadiene resin, 28 parts of toluene, 19 parts of n-butyl acetate and 8 parts of ethyl acetate.
The solvent comprises, by weight, 13 parts of ethylene glycol dibutyl ether, 43 parts of naphtha, 18 parts of an aromatic hydrocarbon solvent, 17 parts of propylene glycol monomethyl ether acetate and 23 parts of dimethylacetamide.
The system adopted by the vacuum coating is a multi-arc ion coating system; adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree reaches 0.04Pa, filling working gas, maintaining the air pressure at 2Pa, starting an arc ion coating power supply, controlling the voltage to be 35V, the current to be 65A and the coating time to be 200s, adding negative bias voltage of 600V between a hub and a chamber in the coating process, controlling the temperature in the chamber to be 200 ℃, controlling the distance between a target and a workpiece to be 300mm in the vacuum coating step and controlling the deposition thickness to be 7.5 microns.
The workpiece to be processed is a hub.
The metal is selected from chromium.

Claims (10)

1. A vacuum coating process is characterized in that transparent paint is sprayed on the surface of a workpiece after vacuum coating; the transparent paint comprises a component A and a solvent; the component A comprises the following raw materials in parts by weight: 80-99 parts of polybutadiene epoxy resin, 1-5 parts of additive and 1-5 parts of auxiliary agent; the mass ratio of the component A to the solvent is 1: 5-10.
2. The vacuum coating process according to claim 1, wherein the additive is a mixture of polymethyl methacrylate and hollow glass beads; polymethyl methacrylate: the hollow glass bead is 3: 2.
3. A vacuum coating process according to claim 1, wherein the auxiliary is selected from n-butanol or methanol or a mixture thereof. And (2) n-butanol: methanol is 1: 1.
4. The vacuum coating process according to claim 1, comprising the following specific steps:
(1) sequentially polishing, cleaning and drying a workpiece to be treated;
(2) spraying powder to the dried workpiece at 185-200 ℃ with the thickness of 80-120 mu m, curing for 15-25 minutes, and inspecting the surface condition of the workpiece; if the product is qualified, directly carrying out the next procedure; if the materials are not qualified, sequentially performing ash supplement, polishing, cleaning, powder spraying and curing processes until the materials are qualified;
(3) spraying 15-30 μm of matte black primer at 150-175 ℃ and curing for 25-40 minutes;
(4) spraying medium paint at 180-230 deg.c for 20-75 micron and curing for 20-45 min;
(5) vacuum coating; preparing a metal or metal compound coating layer of 0.3-7.5 mu m on the surface of the workpiece sprayed with the medium paint;
(6) spraying transparent paint at 150-190 deg.c for 25-40 min to 20-35 micron and curing.
5. The vacuum coating process according to claim 4, wherein the matte black primer comprises component B and a solvent in parts by weight; the component B comprises the following raw materials in parts by weight: 70-75 parts of resin, 10-15 parts of pigment and 5-10 parts of auxiliary agent; the auxiliary agent is a mixture of xylene, ethylene glycol butyl ether, n-butyl alcohol, methyl isobutyl ketone and propylene glycol monomethyl ether acetate.
6. The vacuum coating process according to claim 4, wherein the dielectric paint comprises, by weight, 50-60 parts of polybutadiene resin, 20-30 parts of toluene, 10-20 parts of n-butyl acetate, and 1-10 parts of ethyl acetate.
7. The vacuum coating process according to claim 1 or 5, wherein the solvent comprises, by weight, 5-15 parts of ethylene glycol dibutyl ether, 35-45 parts of naphtha, 10-20 parts of an aromatic hydrocarbon solvent, 10-20 parts of propylene glycol methyl ether acetate and 15-25 parts of dimethylacetamide.
8. The vacuum coating process according to claim 1, wherein the vacuum coating system is a multi-arc ion coating system or a vacuum magnetron sputtering coating system; the workpiece to be processed is a hub.
9. The vacuum coating process according to claim 1, wherein the vacuum coating process comprises: adopts multi-arc ion plating, which comprises the following steps: pre-vacuumizing, when the vacuum degree is 0.02-0.05Pa, filling working gas, maintaining the air pressure at 0.1-5Pa, starting an arc ion coating power supply, controlling the voltage at 20-50V, the current at 30-80A and the coating time at 90-400 s, applying a negative bias of 150-850V between the hub and the chamber in the coating process, controlling the temperature in the chamber at 30-300 ℃, controlling the distance between the target and the workpiece at 50-500mm in the vacuum coating step and controlling the deposition thickness at 0.5-7.5 microns.
10. The vacuum coating process according to claim 1, wherein the vacuum coating process comprises: adopts magnetron sputtering coating, and comprises the following specific steps: pre-vacuumizing, when the vacuum degree reaches 0.02-0.05Pa, filling working gas, maintaining the air pressure at 0.8-5Pa, starting a magnetron sputtering coating power supply, keeping the voltage at 200-.
CN202210327712.9A 2022-03-31 2022-03-31 Vacuum coating process Pending CN114773966A (en)

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Application publication date: 20220722