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Method for preparing faucet with metallic luster by coating brass or zinc alloy base material

A metal luster, zinc alloy technology, applied in metal material coating process, device for coating liquid on the surface, sputtering plating, etc. Achieve the effect of solving low binding force, enhancing metallic luster and enhancing binding force

Active Publication Date: 2021-11-09
佛山市东鹏陶瓷发展有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, people's appearance technology of bathroom hardware is getting higher and higher. At present, the existing faucet will be electroplated with a decorative layer on its surface. The process of water electroplating process is: electrolytic degreasing-acid activation-alkali plating Copper—cleaning—copper acid plating (copper sulfate)—cleaning—nickel plating (twice)—cleaning—chrome plating, because many times of degreasing and pickling are often required in the water electroplating process, and a variety of different processes are required. The continuous replacement of the electrolyte can effectively cause the cations to be plated in the plating solution to be deposited on the surface of the base metal through electrolysis, forming a structurally stable coating. Therefore, there are serious environmental pollution such as water pollution and huge environmental protection pressure. , and the decorative color of the faucet obtained by the traditional water electroplating or baking varnish is single, the color range of the decoration is limited, the design materials and space of the faucet decoration are limited, and the decoration process of the faucet is greatly restricted.
Therefore, some manufacturers have begun to use the vacuum coating process to coat bathroom hardware such as faucets. Vacuum coating includes vacuum evaporation, multi-arc ion coating and magnetron sputtering coating. The uniformity of the coating is poor, so the process of vacuum evaporation has great limitations; while multi-arc ion coating and magnetron sputtering coating are popular because of their strong adhesion and good surface effect. However, in In the current application, when the multi-arc ion coating process is used to coat the surface of the faucet made of brass and zinc alloy, there are problems of poor adhesion of the surface coating layer and no metal brightness. Although the prior art is performing multi-arc ion coating , first spray a layer of primer on the surface of the substrate, but there is still a problem of low bonding between the primer and the coating layer, which will easily cause the coating layer to fall off, so that the metallic luster is not durable, and in order to increase the wear resistance and antibacterial of the faucet surface, etc. performance, a layer of topcoat is often sprayed on the surface of the coating layer, but the topcoat layer in the prior art can block the metallic luster of the coating layer to a certain extent, making the metallic luster of the faucet surface weaker, and the coating layer in the prior art There is also the problem of low bonding force between the coating layer and the topcoat layer, and the adhesion between the coating layer and the topcoat layer is difficult to reach level 0, resulting in easy peeling off of each coating layer, and the metallic luster is not durable, which affects the use of faucets made of brass or zinc alloy. life

Method used

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  • Method for preparing faucet with metallic luster by coating brass or zinc alloy base material
  • Method for preparing faucet with metallic luster by coating brass or zinc alloy base material
  • Method for preparing faucet with metallic luster by coating brass or zinc alloy base material

Examples

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Effect test

Embodiment 1

[0073] A method for multi-arc ion plating silver film on the surface of a brass faucet, comprising the following steps:

[0074] (1) Pretreat the surface of the polished brass faucet, and preheat the pretreated brass faucet at a temperature of 45°C;

[0075] (2) Spray the silicone primer on the surface of the brass faucet, make the silicone primer self-leveling and dry for 25 minutes, heat it to 80°C and keep it for 2 hours, then raise the temperature to 145°C and keep it for 40 minutes. The silicone primer is Hydroxy acrylic silicone coating, wherein the thickness of the silicone primer spray coating is 20 μm;

[0076] (3) Place the brass faucet treated in step (2) in the coating box, place the chromium target in the coating box, vacuumize the coating, and then apply multi-arc ion plating to the brass faucet in the coating box. Coating is carried out by means of bias voltage plus magnetron sputtering coating, and argon gas is passed into the coating box during the coating pr...

Embodiment 2

[0080] A method for multi-arc ion plating color film on the surface of a brass faucet, comprising the following steps:

[0081] (1) After the surface of the finely polished brass faucet is pretreated by dedusting, ultrasonic cleaning, degreasing and drying, preheat the dried brass faucet at a temperature of 60°C;

[0082] (2) Spray the silicone primer on the surface of the brass faucet, make the silicone primer self-leveling and dry for 30 minutes, heat to 82°C and keep it for 1.5h, then raise the temperature to 150°C and keep it for 40min, the silicone primer It is a hydroxyacrylic silicone coating, wherein the thickness of the silicone primer sprayed is 15 μm;

[0083] (3) Place the brass faucet treated in step (2) in the coating box, place the titanium target in the coating box, vacuumize the coating, and then apply multi-arc ion plating to the brass faucet in the coating box. Coating is carried out by means of bias voltage plus magnetron sputtering coating, and oxygen is ...

Embodiment 3

[0087] A method for multi-arc ion plating gold film on the surface of zinc alloy handle and brass faucet, comprising the following steps:

[0088] (1) Pretreat the zinc alloy handle and the surface of the brass main body after fine polishing, and preheat the pretreated blank, and the preheating temperature is 30°C;

[0089] (2) Spray the silicone primer on the surface of the blank, make the silicone primer self-leveling and dry for 35 minutes, heat it to 78°C and keep it for 2.5h, then raise the temperature to 155°C and keep it for 40min, the silicone primer is Hydroxy acrylic silicone coating, wherein the thickness of the silicone primer spray coating is 25 μm;

[0090] (3) Place the blank processed in step (2) in the coating box, place the titanium target in the coating box, vacuumize the coating, and then apply multi-arc ion coating to the blank in the coating box to apply bias Magnetron sputtering coating is added, and nitrogen gas is introduced into the coating box durin...

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Abstract

The invention relates to the technical field of bathroom decoration, in particular to a method for preparing a faucet with metallic luster by coating a brass or zinc alloy base material. The method comprises the following steps: pretreating and preheating the surface of the base material; spraying organic silicon primer on the surface of the base material, and curing; placing the base material treated in the above step in a multi-arc ion coating box for vacuum coating, wherein the vacuum coating mode is multi-arc ion coating, biasing and magnetron sputtering coating; spraying a PP treating agent on the surface of the coated base material, and curing; and spraying polyacrylate baking varnish on the surface of the cured base material, and curing to obtain the faucet with the metallic luster. According to the method, a layer of organic silicon primer is sprayed on the surface of the base material, a layer of pp treating agent is firstly sprayed after vacuum coating, and then polyacrylate stoving varnish is sprayed, so that the binding force between coatings is greatly enhanced, the metallic luster is enhanced, and the problems that the binding force is low and the metallic luster is not lasting when a brass or zinc alloy base material is coated in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of bathroom decoration, in particular to a method for preparing a metallic luster faucet by coating a brass or zinc alloy substrate. Background technique [0002] With the development of society, people's appearance technology of bathroom hardware is getting higher and higher. At present, the existing faucet will be electroplated with a decorative layer on its surface. The process of water electroplating process is: electrolytic degreasing-acid activation-alkali plating Copper—cleaning—copper acid plating (copper sulfate)—cleaning—nickel plating (twice)—cleaning—chrome plating, because many times of degreasing and pickling are often required in the water electroplating process, and a variety of different processes are required. The continuous replacement of the electrolyte can effectively cause the cations to be plated in the plating solution to be deposited on the surface of the base metal through electroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/06B05D7/16B05D7/14B05D7/00B05D3/00B05D3/02B05D1/38C09D133/00C09D5/00C23C14/32C23C14/35C23C14/16C23C14/06C23C14/08
CPCB05D5/068B05D7/16B05D7/14B05D7/584B05D7/586B05D3/002B05D3/0254B05D3/0218B05D1/38C09D133/00C09D5/002C23C14/325C23C14/35C23C14/0015C23C14/16C23C14/0021C23C14/0635C23C14/0641C23C14/083B05D2202/45B05D2202/30
Inventor 钟保民王晓娇张志文曹伯兴李智鸿
Owner 佛山市东鹏陶瓷发展有限公司
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