Tungsten is also a rare metal, in our country, tungsten is known as the industrial teeth, the main reason is that tungsten plays an important role in defense industry, information industry and aerospace industry. The melting point of tungsten is high, it is resistant to elevated temperatures, so it is widely used in machinery industry and weapons manufacturing. In daily life, tungsten is mainly used as the filament in filament lamp. In the machinery industry, the emission tube of gun will use more tungsten alloy.
Tungsten plate is mainly used for sapphire thermal field, vacuum furnace heating chamber to be as the main material of heat insulation screen. Tungsten materials and deep processed products are widely used in national defense, aerospace, electronic information and other high-tech fields.
The direct application field of tungsten rod is mainly used as the tungsten electrode material. The total consumption of tungsten electrode used in the world at present has reached 1600t, and the market needs have been growing with the development of economy. The annual output of tungsten electrode in China is about 3/4 of the world's tungsten electrode. The output of tungsten rod material and tungsten electrode is growing at a rapid rate in recent years. . In 2007, it reached 1000t, which increased more than 20 times in 1996.
The tungsten crucible is one of the deep processed products of tungsten, which mainly divided into sintering molding, stamping, spinning, using molybdenum rod machining molding, welding molding, using pure tungsten plate, tungsten and tungsten rod through the corresponding processing molding. It can be used in the vacuum inert gas below 2600 degrees.
Because the tungsten and molybdenum have the advantages of high temperature resistance and low pollution etc., they have been widely used for sapphire growth crystal furnace thermal field components, including tungsten crucible, molybdenum crucible, heater, the tungsten drum, heat shield, support, a base, a seed crystal rod, crucible lid etc.
