Tungsten - Copper - Nickel - Carbon High Temperature Resistant Alloys

The present invention describes a tungsten - copper - nickel - carbon high temperature resistant alloys, which are tungsten and tungsten carbide-based powder metallurgy products. Characterized in that:

Composition (weight percent) were as follows:

1) 15 ~ 60% WC, 15 ~ 30% Cu, 1 ~ 5% Ni, 1 ~ 6% C, balance W;

2) 15 ~ 60% WC, 15 ~ 30% Cu, 1 ~ 5% Ni, 1 ~ 6% C, 0.2 ~ 0.5% MoC, balance W;

3) 15 ~ 60% WC, 15 ~ 30% Cu, 1 ~ 5% Ni, 1 ~ 6% C, 0.2 ~ 0.5% Cr3C2, balance W;

Note: The alloys and their products, based on an average particle size of 6 ~ 8μm tungsten powder and tungsten carbide powder, and is less than the copper powder, nickel powder and carbon powder as the raw material 75μm, respectively, according to the milled mixture of the alloy composition, molded porosity (volume ratio) of 15 to 35% of the frame blank, and placed together with the added copper powder or copper skeleton rough vacuum or hydrogen furnace 1150 ~ 1440 ℃ protected molybdenum wire furnace is infiltrated sintered 0. 5 to 2 hours.

The present invention describes tungsten - copper - nickel - carbon high temperature resistant alloys, high-temperature operation is also applicable to the other need to wear the appropriate fields.


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