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Tungsten rod

In terms of physical and chemical properties, tungsten rods combine the characteristics of tungsten and binder, such as high melting point, high density, high hardness, high strength, low thermal expansion coefficient, high elastic modulus, wear resistance, high temperature resistance, good electrical and thermal conductivity, etc. Note: the physical and chemical properties of the alloy are also related to the proportion of raw materials. When the binder is copper, the color of the alloy tends to be copper with the increase of copper content. With the increase of copper content, the melting point, density and hardness of the alloy will decrease, and the electric and thermal conductivity will be better.

In terms of production technology, the production method of tungsten alloy rod with different chemical composition is different. For example, the tungsten nickel iron alloy rod can be produced by powder metallurgy technology or injection molding technology. Powder metallurgy technology refers to the process technology that uses metal powder as raw material, through forming and sintering, and produces various types of products. Injection molding refers to a certain shape of the model, through pressure to melt the state of the gel into the mold cavity to produce the required product technology. And the tungsten copper alloy rod is usually made by copper infiltration method, that is, the tungsten powder is first pressed into shape, and burned into a tungsten skeleton with a certain porosity, and then a series of operations such as copper elements can be melted.

Tungsten rod is widely used in military, national defense, aerospace, aviation, navigation, lighting, automobile and other fields. When tungsten rod is processed into wire, it can be used as filament, support line and leadin line. Can also be ground into needles, manufacturing into a variety of electrodes, high-speed cutting tools and sputtering target materials.
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