Titanium alloy screw is popular because it is a kind of active element, which can form a layer of TiO2 oxide film on the surface of the material at the moment of exposure to air. This layer of oxide film is very inert, which can prevent further oxidation and corrosion limited and ensure good biocompatibility of titanium. In terms of mechanical properties, titanium has low density, high mechanical strength and its elastic modulus is closer to bone tissue than other medical metals, which is the ideal biomechanical compatibility of titanium. In addition, it also has good mechanical processing performance and is easy to process and form.

In recent years, the use of titanium alloy screw fasteners extremely wide advantage is obvious and widely recognized by the market, its high strength, monomer single side assembly connection and reusable with the world industrial technology and social progress, titanium alloy screw will have a greater development and wider use.

Titanium alloy screws have the following advantages.

1. The specific strength is high. The density of titanium is 4.51g/cm³, which is higher than aluminum and lower than steel, copper and nickel, but its strength is much higher than other metals. Screws made of titanium alloy are light and strong.

2.Good corrosion resistance. Titanium and titanium alloys are stable in many media, titanium alloy screws can be used in a variety of corrosive environment.

3. Good heat resistance and low temperature resistance. Titanium alloy screws can work normally at a high temperature of 600℃ and a low temperature of -250 ℃ and can maintain their shape without changing.

4. Non-magnetic, non-toxic. Titanium is a non-magnetic metal and will not be magnetized in large magnetic fields; Not only non-toxic and has a good compatibility with the human body.

5.Anti damping performance is strong. Compared with steel and copper, titanium has the longest vibration decay time after being subjected to mechanical and electrical vibration. This property can be used for tuning forks, vibrating components of ultrasonic shredders in medicine and vibrating film of advanced audio speakers.