Tungsten needle for welding is a tungsten product with a slender structure made of pure tungsten or tungsten alloy. It can be used as an electrode material in argon arc welding technology, and can also be used as an instrument probe. It has the advantages of high temperature resistance and good conductivity.
However, the morphology and crystallization state of the needles are different when they are higher or lower than 1,100 degrees. At lower temperatures, the tungsten particle agglomerated products are shaped like branches, and at higher temperatures, the tungsten needles are mainly like whiskers. Used for engraving metal surfaces, cutting particles in collodion and operating single particles. Because these needles are very brittle, they often bend or break, requiring manual operation when completing particle cutting. These tungsten needles are not only used for particle cutting, but also for crystal embryo and glass blowing.
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