Through sintering, forging, swaging, rolling, polishing and other processes, a bright tungsten rod appears. Let us learn how to distinguish the process of tungsten rods by observing the surface: sintered tungsten rods have a silver-gray metallic luster; forged tungsten rods have a layer of oxide on the surface, and the surface is black; polished tungsten rods have silver-gray metallic luster.
Tungsten is a chemical element with the symbol W and atomic number 74. Tungsten rods have special properties such as low thermal expansion and good thermal conductivity, sufficient resistance to electrical resistance, and high elastic modulus. Therefore, tungsten rods are widely used in various fields. Such as support lines, lead-in lines, printer needles, various electrodes and quartz furnaces, filaments, high-speed tools, automotive automatic products, sputtering targets.
