CN108588649B - Vacuum coating decoration process for faucet - Google Patents
Vacuum coating decoration process for faucet Download PDFInfo
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- CN108588649B CN108588649B CN201810372617.4A CN201810372617A CN108588649B CN 108588649 B CN108588649 B CN 108588649B CN 201810372617 A CN201810372617 A CN 201810372617A CN 108588649 B CN108588649 B CN 108588649B
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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
- C23C14/24—Vacuum 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/021—Cleaning or etching treatments
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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
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
-
- 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
- C23C14/58—After-treatment
-
- 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
- C23C14/58—After-treatment
- C23C14/5806—Thermal treatment
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Domestic Plumbing Installations (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A vacuum coating decoration process for a faucet comprises the following steps: (1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning; (2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing; (3) forming a metal coating decorative layer on the surface of the faucet primer through vacuum plating; (4) and (4) spraying a transparent nano coating with good hardness and wear resistance on the surface of the metal coating decorative layer obtained in the step (3), and performing heat treatment to obtain a finished product. The faucet has the advantages that the decoration colors of the faucet are rich and various, full and colorful, and environment-friendly; and an effective protective layer is formed by spraying a transparent nano coating with good hardness and wear resistance, so that the hardness and wear resistance of the surface are improved, and the decorative color is full and gorgeous and has stereoscopic impression.
Description
Technical Field
The invention relates to the technical field of bathroom decoration, in particular to a vacuum coating decoration process for a faucet.
Background
At present, the existing faucet electroplating process is mainly a process of plating copper, plating nickel and plating chromium, wherein the thickness of a nickel layer is 1-12 μm, and the thickness of a chromium layer is 0.3-0.5 μm, but as the water electroplating process usually needs a plurality of oil removal and acid washing processes and needs to be continuously replaced by a plurality of different electrolytes, cations to be plated in a plating solution can be effectively deposited on the surface of a base metal through the action of electrolysis to form a plating layer with a stable structure, so that the problems of serious environmental pollution such as water pollution and huge environmental protection pressure exist, and the faucet obtained by the traditional water electroplating or baking paint water electroplating decoration process has single decoration color, the decoration color system range is limited, the design material and space for faucet decoration are limited, and the decoration process of the faucet is greatly limited.
Disclosure of Invention
The invention aims to provide a vacuum coating decoration process for a faucet.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vacuum coating decoration process for a faucet comprises the following steps:
(1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing;
(3) forming a metal coating decorative layer on the surface of the faucet primer through vacuum plating;
(4) and (4) spraying a transparent nano coating on the surface of the metal coating decorative layer obtained in the step (3), and performing heat treatment to obtain a finished product. The invention provides a faucet vacuum coating decoration process, wherein after a faucet blank is subjected to surface treatment and primer spraying, the surface of the faucet blank is decorated in a vacuum evaporation coating mode to obtain a metal coating decoration layer with richer and more diverse decoration colors and full dazzling colors; compared with the existing decoration modes of electroplating and baking finish, the decoration color of the invention is rich and full, and the environment-friendly advantage of the decoration mode of vacuum vapor deposition film is higher than that of electroplating; in order to enhance the wear resistance of the metal coating decorative layer formed by the vacuum evaporation coating, the surface of the metal coating decorative layer is further sprayed with finish paint and polished, and then a transparent nano coating with good hardness and wear resistance is further sprayed, so that a more effective protective layer is formed after heat treatment, the surface pencil hardness can reach 3-4H and is higher than that of other spraying faucet products such as baking finish, the hardness is higher than that of other spraying faucet products such as baking finish, the surface hardness and wear resistance are greatly improved, the color development effect of the metal coating decorative layer can be promoted, a better refraction and reflection light effect is formed, and the decoration color is more full and bright.
Further, in the vacuum plating, the faucet blank sprayed with the primer is placed in vacuum plating equipment, low-melting-point metals such as aluminum, tin, indium or indium-tin alloy and the like are evaporated by resistance heating in a vacuum environment, and the evaporated metals are deposited on the surface of the primer of the faucet to form a metal plated decorative layer. The colors of 24K gold, rose gold, powder gold, antique gold and the like which cannot be manufactured by the existing electroplating and baking finish decoration mode can be formed in a vacuum evaporation coating mode, so that the color of the metal coating decoration layer is greatly enhanced, and the metal coating decoration layer has the advantages of rich decoration, dazzling color texture, increased design materials and space of designers, energy conservation and environmental protection;
meanwhile, the transparent nano coating is further coated on the surface of the metal coating decorative layer formed by vacuum evaporation, so that a hard protective film layer can be formed by curing, the hardness and the wear resistance of the surface are improved, the metal coating is prevented from being damaged, and the transparent nano coating can also penetrate into the metal coating decorative layer, namely the metal coating, so that the color development of the metal coating decorative layer is effectively adjusted and promoted, a more uniform refraction and reflection light effect is formed, and the color of the metal coating is brighter; meanwhile, the transparent nano coating can be utilized to finely adjust the color of the metal coating so as to obtain richer decorative colors, for example, if the colors such as gold powder, rose gold and the like need to be modulated, water system color concentrates of 0.001-0.01% can be added into the transparent nano coating, so that the color concentrates can uniformly permeate into the metal coating along with the transparent nano coating, a more accurate and effective color modulation effect is achieved, an effective color-moistening effect is formed, the color is more saturated and bright, the operation is simple, the controllability is high, and the decorative color of the faucet is more colorful.
Further, the purity of the metal is set to 99.80%, 99.93%, or 99.98%; the vacuum degree of the vacuum environment is set as1.3×10-2～1.3×10-3Pa, setting the vacuum plating treatment time to be 5-15 min.
Further, the thickness of the metal coating decorative layer is 0.1-5 μm. The melting point and the boiling point of metal can be effectively reduced in a higher vacuum environment, and after the power is switched on, the resistance wire is heated to directly heat and melt the low-melting-point metal of aluminum, tin, indium or indium-tin alloy and evaporate the low-melting-point metal, so that the low-melting-point metal is effectively deposited on the surface of a faucet blank; and the depth of the color of the plating layer is further controlled by controlling the evaporation time and the thickness of the metal plating decorative layer.
Further, the primer is oily/aqueous unsaturated polyester resin or epoxy resin, and the fineness of the primer is 200-400 meshes.
Further, the thickness of the primer is controlled to be 20-35 μm. The primer with certain fineness is adopted for spraying to prevent the spray gun from being blocked, so that the spraying is more uniform and the adhesive force is good; and the primer with a certain thickness is sprayed, so that the adhesive force between the vacuum coating and the faucet blank is effectively increased, the surface flatness of the faucet blank is increased, the tiny defects are covered, and the surface of the product is smooth and bright.
Further, the rough treatment in the step (1) is carried out by using 220-800 mesh sand grinding or/and 120-400 mesh sand grinding. The sand material is brown corundum sand material, and the surface of the faucet blank can be subjected to rough treatment by carrying brown corundum abrasive material in high-pressure air flow through sand blasting so as to improve the adhesive force between the primer and the faucet blank; and dust can be blown before spraying the priming paint, so that the priming paint adhesion is prevented from being influenced by oil stain, dust and the like through oil removal, dust removal and cleaning.
Further, the transparent nano coating is made of silicon-aluminum sol nano coating with the fineness of 200-400 meshes, is sprayed by a 1.0-1.2mm aperture air pressure spray gun, and is subjected to heat treatment at 80 ℃ for 30-60 min.
The modified silica-alumina sol nano coating with certain fineness is sprayed under certain pressure, so that a spray gun is prevented from being blocked, the spraying is more uniform, and the adhesion between the silica-alumina sol nano coating and the metal coating decorative layer is better after heat treatment at 80 ℃ for 30-60 min.
The invention has the beneficial effects that: the surface of the faucet blank is decorated by adopting a vacuum vapor deposition film mode, so that a metal film coating decoration layer with richer and more diverse decoration colors and full and colorful colors is obtained; the decoration color of the faucet is rich and full, and meanwhile, the environment-friendly advantage of the decoration mode of the vacuum evaporation coating is higher than that of electroplating; and the surface of the metal coating decorative layer is further sprayed with a layer of transparent nano coating with good hardness and wear resistance after being sprayed with finish paint and polished, and a more effective protective layer is formed after heat treatment, the pencil hardness of the surface of the metal coating decorative layer can reach 3-4H, and the hardness of the metal coating decorative layer is higher than that of other spraying faucet products such as baking paint, so that the color development effect of the metal coating decorative layer can be promoted while the hardness and wear resistance of the surface are greatly improved, a better refraction and reflection light effect is formed, and the decorative color is more full and bright.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Embodiment 1-a silver tap vacuum coating decoration technology, including the following steps:
(1) putting the faucet blank in a sand blasting machine, performing 220-mesh sand blasting treatment on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is unsaturated polyester water-based primer and is filtered by a 200-mesh filter screen; manually spraying a faucet blank by using a handheld air pressure spray gun with the aperture of 1.2mm, wherein the thickness of the primer is 20 microns, and sending the faucet blank into an oven to bake and dry at 80 ℃ for 60min to solidify the faucet blank;
(3) hanging the faucet blank coated with the primer in a vacuum coating machine at certain intervals according to requirements, placing an aluminum wire with the purity of 99.80% close to the heating resistance wire, and closing a coating machine valve; the vacuum press was opened and set to a vacuum of 1.3X 10-2Pa, heating when the vacuum degree reaches the required valueOpening a source, and performing vacuum coating to form a metal coating decorative layer; vacuum evaporation time is 5min, the thickness of the evaporated metal coating decorative layer is 0.1 μm, negative pressure is removed, and after the blank is cooled, the faucet fittings are taken out, but the surface coating cannot be collided;
(4) spraying a layer of silica-alumina sol nano coating by using an air pressure spray gun with the aperture of 1.2mm, filtering the silica-alumina sol nano coating by using a 200-mesh filter screen, sending a faucet blank into an oven, baking and drying at 80 ℃ for 60min to obtain a faucet 1 with silver high-hardness vacuum coating decoration, and testing that the pencil hardness of the surface of the faucet 1 is 3H; compared with the existing electroplating or paint baking method, the silver effect has brighter decorative color texture, and is uniform and stable.
Embodiment 2-a golden faucet vacuum coating decoration process, including the following steps:
(1) putting the faucet blank in a sand blasting machine, performing 120-mesh sand blasting treatment on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is unsaturated polyester water-based primer and is filtered by a 400-mesh filter screen; manually spraying a faucet blank by using a handheld air pressure spray gun with the aperture of 1.0mm, wherein the thickness of the primer is 35 mu m, and sending the faucet blank into an oven to bake and dry the faucet blank for 30min at 80 ℃ so as to solidify the faucet blank;
(3) hanging the faucet blank coated with the primer in a vacuum coating machine at certain intervals according to requirements, placing an aluminum wire with the purity of 99.98 percent close to the heating resistance wire, and closing a coating machine valve; the vacuum press was opened and set to a vacuum of 1.3X 10-3Pa, after the vacuum degree reaches a required value, opening a heating source, and carrying out vacuum coating to form a metal coating decorative layer; vacuum evaporation time is 15min, the thickness of the evaporated metal coating decorative layer is 5 μm, negative pressure is removed, and after the blank is cooled, the faucet fittings are taken out, but the surface coating cannot be collided;
(4) spraying a layer of silicon-aluminum sol nano coating by using an air pressure spray gun with the aperture of 1.0mm, adding 0.001% of golden water system color concentrate into the silicon-aluminum sol nano coating, filtering by using a 400-mesh filter screen, and baking and drying a faucet blank in an oven at 80 ℃ for 30min to obtain the faucet with golden high-hardness vacuum coating decoration, wherein the surface pencil hardness of the faucet is tested to be 3.8H; compared with the existing electroplating or paint baking method, the golden effect has brighter decorative color texture, uniformity and stability.
Embodiment 3-a pseudo-gold faucet vacuum coating decoration process, including the following steps:
(1) putting the faucet blank in a sand blasting machine, performing 400-mesh sand blasting on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is unsaturated polyester water-based primer and is filtered by a 300-mesh filter screen; automatically spraying a faucet blank by using an air pressure spray gun with the aperture of 1.1mm, wherein the thickness of the primer is 30 mu m, and sending the faucet blank into an oven to bake and dry for 45min at 80 ℃ so as to solidify the faucet blank;
(3) hanging the faucet blank coated with the primer in a vacuum coating machine at certain intervals according to requirements, placing an aluminum wire with the purity of 99.93 percent close to the heating resistance wire, and closing a coating machine valve; the vacuum press was opened and set to a vacuum of 1.3X 10-3Pa, after the vacuum degree reaches a required value, opening a heating source, and carrying out vacuum coating to form a metal coating decorative layer; vacuum evaporation time is 10min, the thickness of the evaporated metal coating decorative layer is 3 μm, negative pressure is removed, and after the blank is cooled, the faucet fittings are taken out, but the surface coating cannot be collided;
(4) spraying a layer of silicon-aluminum sol nano coating by using an air pressure spray gun with the aperture of 1.1mm, adding 0.01% of golden water system color concentrate into the silicon-aluminum sol nano coating, filtering by using a 300-mesh filter screen, and baking and drying a faucet blank in an oven at 80 ℃ for 45min to obtain the faucet with antique gold high-hardness vacuum coating decoration, wherein the surface pencil hardness of the faucet is tested to be 4H; compared with the prior electroplating or paint baking method, the antique gold effect has brighter, uniform and stable decorative color texture.
Comparative example 1-based on the faucet decoration process of silver high-hardness vacuum coating decoration of example 1, the step (4) is omitted, a layer of silica-alumina sol nano-coating is sprayed by using an air pressure spray gun with a pore diameter of 1.1mm, the rest preparation steps and experimental parameter conditions are the same as those of example 1, the faucet 2 with silver vacuum coating decoration is obtained, the surface hardness is 1.8H through testing, and the decoration color is darker than that of example 1.
Comparative example 2-based on the faucet decoration process of silver high-hardness vacuum coating decoration of example 1, the fineness of the silica-alumina sol nano-coating in the step (4) is changed to 120 meshes; the rest preparation steps and experimental parameter conditions are the same as those in example 1, the tap 3 with silver vacuum coating decoration is obtained, the surface hardness is 2.3H through testing, the adhesion force between the nano coating and the metal coating decoration layer is small due to large fineness and uneven spraying of the nano coating, and the hardness is lower compared with that in example 1.
Therefore, the mode of vacuum coating can be utilized to obtain the decorative effect that the decorative colors are rich and various and full and colorful, and a uniform and effective protective layer can be formed by spraying the silicon-aluminum sol nano coating with certain fineness, the pencil hardness of the surface of the protective layer can reach 3-4H, and the color development effect of the pattern colors can be promoted while the hardness and the wear resistance of the surface are improved, so that the colors of the pattern patterns are brighter.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. A faucet vacuum coating decoration process is characterized in that: the method comprises the following steps:
(1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing;
(3) forming a metal coating decorative layer on the surface of the faucet primer through vacuum plating;
(4) spraying a transparent nano coating on the surface of the metal coating decorative layer obtained in the step (3), and performing heat treatment to prepare a finished product; the transparent nano coating is made of silicon-aluminum sol nano coating, and water system color concentrate is added into the silicon-aluminum sol nano coating.
2. The vacuum coating decoration process for the water faucet as claimed in claim 1, wherein: the vacuum plating is to place the faucet blank sprayed with the primer in vacuum plating equipment, evaporate aluminum, tin, indium or indium-tin alloy by resistance heating in a vacuum environment, and deposit evaporated metal on the surface of the primer of the faucet to form a metal coating decorative layer.
3. The vacuum coating decoration process for the water faucet as claimed in claim 2, wherein: the purity of the metal is set to 99.80%, 99.93% or 99.98%; the vacuum degree of the vacuum environment is set to be 1.3 multiplied by 10-2～1.3×10- 3Pa, setting the vacuum plating treatment time to be 5-15 min.
4. The vacuum coating decoration process for the water faucet as claimed in claim 3, wherein: the thickness of the metal coating decorative layer is 0.1-5 μm.
5. The vacuum coating decoration process for the water faucet as claimed in claim 2, wherein: the primer is oily or water-based unsaturated polyester resin or epoxy resin, and the fineness of the primer is 200-400 meshes.
6. The vacuum coating decoration process for the water faucet as claimed in claim 5, wherein: the thickness of the primer is controlled to be 20-35 mu m.
7. The vacuum coating decoration process for the water faucet as claimed in claim 1, wherein: the rough treatment in the step (1) is carried out by adopting 220-800 mesh sand blasting or/and 120-400 mesh sand blasting.
8. The vacuum coating decoration process for the water faucet as claimed in claim 1, wherein: the fineness of the silicon-aluminum sol nano coating is 200-400 meshes, the silicon-aluminum sol nano coating is sprayed by a spray gun with the aperture of 1.0-1.2mm, and the silicon-aluminum sol nano coating is subjected to heat treatment at 80 ℃ for 30-60 min.
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| CN111809151A (en) * | 2020-06-23 | 2020-10-23 | 佛山市东鹏陶瓷有限公司 | Coating process for brass and zinc alloy base material |
| CN112588541A (en) * | 2020-11-06 | 2021-04-02 | 昆山东申塑料科技有限公司 | Surface treatment process for zinc alloy part |
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| CN105038336B (en) * | 2015-07-10 | 2017-06-30 | 佛山东鹏洁具股份有限公司 | A kind of inorganic nano paint and its preparation and application for being coated on substrate surface |
| CN104974560B (en) * | 2015-07-10 | 2017-06-30 | 佛山东鹏洁具股份有限公司 | Hardware sanitary equipment a kind of easy to clean and long service life and its production method |
| CN107413608A (en) * | 2017-09-18 | 2017-12-01 | 龙口博源新科金属涂层有限公司 | A kind of method, production line and its product in metal tube surface coating composite coating |
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