Method for surface decoration treatment of titanium and titanium alloy

Abstract

The invention relates to a method for surface decoration treatment of titanium and titanium alloy. After a titanium or titanium alloy product is mechanically polished on the surface, a high-temperature treatment step under atmosphere control is carried out, an appropriate time is maintained under the recrystallization temperature range of different atmospheres, and finally the surface of the titanium and titanium alloy shows a raised texture of coarse grains and beautiful crystal patterns visible to the naked eyes, can reflect light from many angles, and achieves a similar artificial diamond flash effect. However, the titanium and titanium alloy products on the base still maintain the relative relationship between size and shape, and the structural strength of the products cannot be affected. The method only needs to control the atmosphere condition, vacuum degree, heating temperature and holding time, and can realize the scale of economic mass production and the process without chemical pollution.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a method for surface decoration treatment of titanium and titanium alloys. Background technique [0002] Titanium metal has the characteristics of high strength, low density, high hardness, high melting point and strong corrosion resistance, and has been used more and more widely. The existing surface treatment methods of titanium and titanium alloys can be roughly divided into two types: physical removal method and chemical removal method. [0003] The physical removal method is a physical method of polishing (Polishing&Lapping), hair-lining (Hair Lining) and sandblasting (Sandblasting). It mainly uses the means of removing materials as a surface treatment method. It is aimed at traditional metals including titanium gold and titanium alloys. The surface is processed to obtain a metallic luster and a textured manner. Due to the high hardness of titanium and titanium al...

AI Technical Summary

Problems solved by technology

Physical surface treatment must use more manual control methods, one by one, not only time-consuming and labor-intensive, but also the state of the surface may not be uniform

In recent years, automated robots have been able to improve this time-consuming and labor-intensive practice, but the investment in automated equipment is relatively staggering

[0004] The chemical removal method is to protect the surface of titanium gold and titanium alloy to prevent oxidation and increase the color contrast of anodized treatment. However, titanium and titanium metal are very active, and chemical etching must avoid its rapid reaction. The waste liquid after solution treatment is quite harmful to the environment. The naturally formed lines on the surface of treated titanium and titanium alloy have no prominent features and differences in appearance. This has always been a bottleneck in product production.

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