Preparation process of champagne gold coating film

Abstract

The invention relates to the technical field of metal coating, in particular to a champagne gold coating preparation process which comprises the following steps: S1, providing a metal plate to be processed, putting the metal plate into a vacuum chamber, and vacuumizing; s2, it is guaranteed that the air pressure in the vacuum chamber is stable, a high-voltage transformer is started, a bombardment power source is started, air is ionized into plasma in the discharging state, and bombardment cleaning activation is conducted on the workpiece; and S3, a reactive magnetron sputtering coating process is utilized, co-sputtering coating is conducted with the titanium-aluminum alloy as a target material, coating is conducted with nitrogen and acetylene gas as reaction gas, the gas flow, the reaction time and the reaction temperature of the nitrogen and the acetylene gas are controlled, and finally a champagne gold film layer is formed on the surface of the metal plate. According to the invention, when the metal plate is coated, the vacuum coating process in the traditional process is optimized, and through formula control, when specific champagne gold surface treatment is carried out, the yield is ensured, the color deviation is low, and the processing quality is further improved.

Description

technical field [0001] The invention relates to the technical field of metal coating, in particular to a preparation process of champagne gold coating. Background technique [0002] In the process of metal sheet processing, surface coating treatment is a common processing method, but common metal sheets need to be treated with paint or other coatings during surface processing, and it is difficult to control the thickness of the coating or paint during the processing process. The color is easy to be uneven or the color is prone to deviation, especially when the surface processing of some metallic colors is very high, the color requirements are very high, and the processing is not good, which will easily lead to an increase in the defect rate and needs to be improved. [0003] Chinese Patent No. CN103526161A discloses a vacuum coating method. By enclosing a substrate into a cylindrical structure, the outer surface of the cylindrical structure is the surface to be coated. Coat...

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Problems solved by technology

[0002] In the process of metal plate processing, surface coating treatment is a common processing method, but the common metal plate needs to use paint or other coatings for surface processing, and it is difficult to control the thickness of paint or paint during the treatment process. At the same time The color is easy to be uneven or the color is prone to deviation, especially when the surface processing of some metal texture colors is very demanding on the color, if the treatment is not good, it will easily lead to an increase in the defect rate, and needs to be improved

[0003] Chinese Patent No. CN103526161A discloses a vacuum coating method, by enclosing a base material into a cylindrical structure, the outer surface of the cylindrical structure is the surface to be coated, by rotating the coating twice before and after Coating, the coating material is evaporated onto the substrate in a vacuum chamber, which can eliminate the influence of the distance from the source of the coating material to the surface to be coated or gravity on the thickness of the film, and can achieve a large area of ​​uniform coating on the surface of the substrate. The strip-shaped substrate is spirally wound into a cylindrical structure, which can achieve uniform coating on the surface of the strip-shaped substrate with large length and small width. It has the advantages of high coating efficiency and simple production equipment. However, the overall process It is relatively complicated, which leads to higher overall processing requirements, and also increases the cost virtually, so it needs to be improved

[0004] Chinese Patent No. CN102383101B discloses a composite vacuum coating method, which uses magnetron sputtering ion plating hybrid coating technology to obtain high film density, bright white surface, strong metallic feeling, good physical properties and stable Chemical performance, its performance is superior to traditional electroplated aluminum alloy / zinc alloy products, because vacuum dry plating is used to replace traditional wet plating, the metal layer on the surface is deposited by vacuum coating, avoiding toxic metal substances such as hexavalent chromium The emergence of the new technology has reduced the pollution to the environment, significantly reduced the energy consumption, water consumption and the consumption of precious metals, but for the special requirements of metal texture color coating, it still cannot meet the requirements and needs to be improved

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