Surface modification of titanium materials
The film formed on the surface of titanium implant by surface modification treatment of titanium makes the implant have better wear resistance, corrosion resistance and biocompatibility. This surface modified titanium implant has been widely accepted and applied in clinical medicine at home and abroad. Because the surface treatment technology is not up to standard, there is no domestic orthopedic titanium implant with strengthening membrane on the market, and only the same kind of products can be imported, which is expensive.
Surface treatment and modification technology of titanium
Titanium surface treatment:
1. Enhanced corrosion resistance:
Atmospheric oxidation and anodic oxidation can not only improve corrosion resistance, but also prevent hydrogen embrittlement; In addition, there are platinum plating, palladium oxide/titanium oxide;
2. Improve wear resistance:
Nitriding treatment shall be carried out at high temperature (800-900 ℃) to make the Vickers hardness of its surface reach more than 700 ℃; By surfacing, add proper nitrogen or oxygen into argon to increase its surface hardness by 2-3 times; Through ion plating, a layer of titanium nitride is formed on its surface, with a thickness of about 5 microns and a Vickers hardness of 16000-20000 chromium plating; Through the above simple understanding of titanium and its alloys, we can also understand some roles of titanium and its alloys in the production of circuit boards, which will be inspired in the use, maintenance and other aspects; Titanium has become the third largest metal with broad application prospects in the future after magnesium aluminum!
In recent years, titanium rod, titanium alloy materials and Medical titanium material It has been widely used in biomedicine, daily necessities, industry and other fields. The project adopts the new technology of titanium alloy surface modification (PTO technology) with independent intellectual property rights and international advanced level, which significantly improves the wear resistance, biocompatibility and surface decoration of titanium materials with advanced technology and low cost, making titanium materials more widely used
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