Thorium tungsten rod is a tungsten alloy bar containing 2% thorium oxide, known for its excellent high-temperature strength, resistance to electron emission, and thermal stability. The addition of thorium enhances the electrical conductivity and arc resistance of tungsten, making thorium tungsten rods widely used in TIG welding, electrode manufacturing, plasma cutting, and high-temperature vacuum equipment. They are especially suitable for applications requiring high current density and continuous operation, offering stable arc initiation and extended service life.

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