Products
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A tungsten contact disc is treated by burnishing, so as to smooth and compact the contact surface and remove the surface-crazed metals and oxides, while simultaneously filling the surface pores with a contaminant such as iron. The contaminants present in the pores are subsequently removed by immersing the contact disc in a dissolving agent, and the remaining natural oxides of the tungsten are removed from the walls of the pores by cathodic reduction, to create large pore sites, which are free of oxides and contaminants.
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This refractory metal composite materials are a combination of tungsten combined with copper or silver. The manufacturing process is to press the refractory, sinter the pressed compact at a high temperature, and infiltrate with copper or silver. All this is done under very closely controlled conditions. The result is a relatively hard materials with superior arc and wear resistance, high physical properties at elevated temperatures, and good electrical and thermal conductivity.
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W50CU50,W55CU50,W60CU40，W65CU35,W70CU30，W75CU25，W80CU20，W85CU15,W90CU10
Features
high density Tungsten-copper Alloy w80cu20 bar
1. High hardness, high density, High strength, high heat resistant;
2. Excellent thermal and electrical conductivity;
3. Better arc burning loss resistance, erosion resistance;
4. Easy to be machined -
We has been manufacturing and offerring tungsten copper alloys more than 20 years, the tungsten copper it offered with standards and regular grades and specification as followings:
