
Tungsten alloy polished rod has a smooth surface, high density and high hardness. It also has excellent properties such as high elastic modulus, high bending strength and low expansion coefficient. Its thermal conductivity and electrical conductivity are similar with iron and its alloy. Due to a series of good properties of tungsten alloy polished rod, it is mainly used for the manufacture of various cathodes for emission, high-temperature shaped rod, bracket, lead wire, printing needle, various electrode and quartz melting…