Titanium is a new kind of metal, the performance of titanium is related to the content of carbon, nitrogen, hydrogen, oxygen and other impurities. The impurity content of titanium iodide is less than 0.1%, but its strength is low and plasticity is high. Performance of 99.5% industrial pure titanium: Density ρ=4.5g/cm3, melting point 172 si-ti alloy wear-resisting floor 5℃, thermal conductivity λ=15.24W/(m.K), tensile strength σb=539MPa, elongation δ= 25%, area reduction ψ= 25%, elastic modulus E=1.078×105MPa, hardness HB195.
Titanium is a metallic chemical element, chemical symbol Ti, atomic number 22, in the periodic table of chemical elements in the fourth period, IVB group. It is a silver-white transition metal characterized by light weight, high strength, metallic luster and resistance to wet chlorine corrosion. But titanium can not be applied to dry chlorine gas, even if the temperature of dry chlorine gas below 0℃, there will be a violent chemical reaction to generate titanium tetrachloride, and then decomposition to generate titanium dichloride, or even combustion. Titanium remains reliable in chlorine only when the water content is above 0.5%. Titanium is considered a rare metal because it is dispersed in nature and difficult to extract. But it is relatively abundant, ranking tenth among all elements. Titanium ore mainly ilmenite and rutile, widely distributed in the earth's crust and lithosphere. Titanium is also present in almost all organisms, rocks, water bodies and soil. The extraction of titanium from the main ore requires the Croll or Hunter process. The more common compound of titanium is titanium dioxide, which can be used to make white pigments. Other compounds include titanium tetrachloride (TiCl4), used as a catalyst and as a smokcreen for air cover, and titanium trichloride (TiCl3), used to catalyze the production of polypropylene.
High precision, good finish, the surface is not allowed to have dark and local water mark; No scratches, indentation, pits, cracks, peeling, oxide, folding, lamination, metal and non-metal clamps, alkali washing marks and other defects.
It has the characteristics of high specific strength, good corrosion resistance and high heat resistance and is widely used in various fields. Titanium, non-toxic, light weight, high strength and excellent biocompatibility, is a very ideal metal material, its heat resistance, strength, plasticity, toughness, formability, weldability, corrosion resistance and biocompatibility are good.
In addition to the use of industrial pure titanium manufacturing parts, a large number of titanium alloy is used. It is increasingly widely used in aviation, aerospace, chemical, shipbuilding, metallurgy, electronics, medical, petroleum, pharmaceutical, military and other industrial sectors to manufacture gas turbine components.
