PVD glow oxidation decorative coating method

Abstract

The invention discloses a PVD glow oxidation decorative coating method. The method includes the steps that the a* value interval and the b* value interval of a target color are provided; a primary color film layer of a certain color is deposited on a to-be-processed surface through a PVD method so that the a* value of the color of the to-be-processed surface can at least reach 10% of the lower limiting value of the a* value interval of the target color and the b* value can at least reach 10% of the lower limiting value of the b* value interval of the target color, wherein the a* value does not exceed 90% of the upper limiting value of the a* value interval of the target color, and the b* value does not exceed 90% of the upper limiting value of the b* value interval of the target color; and oxidation reaction is conducted on the primary color film layer through the glow oxidation method and conduction of the glow discharge process and the oxidation reaction is controlled so that the a* value of the color of a formed oxidation film layer can fall into the a* value interval of the target color and the b* value of the color of the formed oxidation film layer can fall into the b* value interval of the target color. The PVD glow oxidation decorative coating method is uniform in product film layer color and simple in process.

Description

technical field [0001] The invention relates to a coating method, in particular to a PVD glow oxidation decorative coating method. Background technique [0002] The colors of PVD (Physical Vapor Deposition) decorative plating are complex and diverse. For some colors (such as golden yellow, rose, brown, etc.) produced by multi-arc ion plating PVD equipment, N 2 with C 2 h 2 or CH 4 , O 2 Participating in the deposition reaction, its coloring process is unstable, there are problems such as large yin and yang color of the product, large color difference between products in the same furnace, and extremely low yield rate. Therefore, multiple reworks are often required, resulting in low production efficiency, increased equipment production load, and power Energy consumption increases, production costs rise, and production periods are lengthened, making it difficult to quickly meet customer order needs. Contents of the invention [0003] Aiming at the above technical problem...

AI Technical Summary

Problems solved by technology

[0002] PVD (Physical Vapor Deposition physical vapor deposition) decorative plating has complex and diverse colors. For some colors (such as golden yellow, rose, brown, etc.) produced by multi-arc ion plating PVD equipment, it is necessary to add N 2 with C 2 h 2 or CH 4 , O 2 Participating in the deposition reaction, its coloring process is unstable, there are problems such as large yin and yang color of the product, large color difference between products in the same furnace, and extremely low yield, so it often needs to be reworked many times, resulting in low production efficiency, increased equipment production load, and power Increased energy consumption, increased production costs, and longer production periods make it difficult to quickly meet customer order needs

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