Use of a tungsten/heavy metal alloy

Details Use of a tungsten/heavy metal alloy Use of a tungsten/heavy metal alloy

C - Chemistry, Metallurgy

22

C

C22C 27/04 (2006.01) B21C 25/02 (2006.01) B21J 13/02 (2006.01) B22F 5/00 (2006.01) C22C 1/04 (2006.01)

Patent

CA 2365366

The invention relates to the use of a tungsten/heavy metal alloy for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, remainder binder metal. The use of this alloy primarily results in a considerably reduced formation of grooves on the surface of the forming tools.

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