Tungsten wires are doped tungsten wires produced using advanced technologies and equipment such as blue tungsten doping, tungsten powder pickling, isostatic pressing, program-controlled vertical melting sintering, tungsten rod welding, swaging and automatic feeding.
The product is characterized by good resistance to high temperature thermal deformation, high recrystallization temperature, uniform diameter and good winding consistency. The single vertical melted tungsten billet weighs 3kg, and the maximum weight of the thick wire processed by butt welding can reach more than 5kg.
Black tungsten filament is mainly used to produce spiral incandescent lamp filaments, cathodes and bracket structures of electric vacuums, heating elements of high-temperature furnaces and evaporation sources for gold plating processes. Manufacture of electric light sources and electric vacuum parts, used as high-temperature heating elements and high-temperature structural parts, and used to make tungsten spirals for vacuum evaporation.
Thick tungsten wire, after straightening, surface polishing, and cutting into rod shapes, is widely used as glass-metal sealing parts in the lighting and electronic industries.
