Titanium is an important structural metal in the 1950s developed, titanium due to a high specific strength, good corrosion resistance,Titanium filler wire  and high heat resistance, are widely used in various fields. Many countries recognize the importance of titanium alloy, have their research and development, and has been applied. Titanium is the periodic table ⅣB element, look like steel, melting point up to 1 672 ℃, the case of refractory metals. Titanium content in the crust than the rich, far higher than common metals Cu, Zn, Sn, Pb and the like. Our resources are very rich in titanium, vanadium-titanium magnetite large only found in Panzhihua region, associated titanium reserves of about 420 million tons, close to the foreign total proven reserves of titanium. Titanium-use can be divided into heat-resistant alloys, high-strength alloys, titanium bar stock corrosion resistant alloy (titanium - molybdenum, titanium - palladium alloys, etc.), low-temperature alloys and special features alloy (Ti - Fe hydrogen storage materials and titanium - Ni shape memory alloys) .