Titanium is an important structural metal developed in the 1950s. Titanium and titanium alloys have low density, high specific strength, good corrosion resistance, low thermal conductivity, non-toxic, non-magnetic, weldable, and good biocompatibility. , The surface can be decorated with characteristics such as strong, widely used in aviation, aerospace, chemical industry, petroleum, electric power, medical treatment, construction, sports goods and other fields.