Tungsten Carbide Button Microelement

Tungsten carbide buttons are widely applied in geological prospecting, coal mining and oil well boring. Because of its wear resistance and hardness, tungsten carbide button is ideally suited for wear parts, other machine parts and dies which are subject to severe service conditions, such as high temperatures, corrosion and abrasion.

Some manufactures in China and from abroad add a trace of TaC into tungsten carbide button in order to improve tungsten carbide button binder structure, promote its wear resistance, resistance to heat shocks and thermal plastic deformation. But TaC can reduce tungsten carbide button hardness and toughness, increase the producing cost.

Some other researchers add Ta and Mo into tungsten carbide button and it turns out the button is of high tenacity and high hardness. This is because of a complex layer formed in the tungsten carbide grain with Ta and Mo. Thus tungsten carbide button performs a great impact toughness and high wear resistance.

 
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