Medical titanium rod It has high strength, small density, good mechanical function, good resistance and corrosion resistance. In addition, titanium alloy has poor process function and difficult cutting. In hot processing, it is very simple to absorb impurities such as hydrogen, oxygen, nitrogen and carbon. There is also poor abrasion resistance and disordered production process. The industrial production of titanium began in 1948. The demand for the development of the aviation industry makes the titanium industry develop at an average annual growth rate of about 8%. At present, the annual output of titanium alloy processing materials in the world has reached more than 40000 tons, and there are nearly 30 kinds of titanium alloy trademarks. The most widely used titanium alloys are Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and industrial pure titanium (TA1, TA2 and TA3). Titanium alloy is mainly used to make compressor parts of aircraft engines, followed by layout parts of rockets, missiles and high-speed aircraft. In the mid-1960s, titanium and its alloys have been used in ordinary industries to make electrodes for electrolysis industry, condensers for power stations, heaters for petroleum essence and seawater desalination, and environmental pollution control equipment. Titanium and its alloys have become a kind of corrosion resistant layout information. In addition, it is also used to produce hydrogen storage data and shape memory alloys. Titanium alloy is a new important layout data used in aerospace industry. Its specific gravity, strength and operating temperature are between aluminum and steel, but its specific strength is high and it has excellent seawater corrosion resistance and ultra-low temperature function. The amount of titanium alloy used in aeroengines usually accounts for 20%~30% of the total weight of the layout. It is mainly used to make compressor components, such as cast titanium fans, compressor disks and blades, cast titanium compressor casings, intermediate casings, bearing shells, etc. The spacecraft mainly uses the high specific strength, corrosion resistance and low temperature resistance of titanium alloy to manufacture various pressure vessels, fuel tanks, fasteners, instrument straps, frames and rocket shells. Artificial earth satellites, lunar modules, manned spacecraft and space shuttles also use titanium alloy plate weldments.

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