EP 1217086 A3 20050706 - Use of a tungsten heavy metal alloy
Title (en)
Use of a tungsten heavy metal alloy
Title (de)
Verwendung einer Wolfram-Schwermetalllegierung
Title (fr)
Utilisation d'un alliage de métal lourd à base de tungstène
Publication
Application
Priority
AT 9282000 U 20001219
Abstract (en)
[origin: US2002112523A1] The tungsten/heavy metal alloy is suitable for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The novel alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, and a remainder of binder metal. The use of the novel alloy primarily results in a considerably reduced formation of grooves on the surface of the forming tools.
IPC 1-7
IPC 8 full level
B21C 25/02 (2006.01); B21J 13/02 (2006.01); B22F 5/00 (2006.01); C22C 1/04 (2006.01); C22C 27/04 (2006.01)
CPC (source: EP US)
B21C 25/025 (2013.01 - EP US); B21J 13/02 (2013.01 - EP US); B22F 5/007 (2013.01 - EP US); C22C 1/045 (2013.01 - EP US); C22C 27/04 (2013.01 - EP US); B22F 2003/166 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); B22F 2998/10 (2013.01 - EP US); B22F 2999/00 (2013.01 - EP US)
Citation (search report)
- [X] CH 341314 A 19590930 - GEN ELECTRIC CO LTD [GB]
- [A] US 3680354 A 19720801 - PHILLIPS WILLIAM H JR
- [A] US 4786468 A 19881122 - WANG RONG [US], et al
- [A] DE 2213507 A1 19720928 - MALLORY & CO INC P R
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2002112523 A1 20020822; US 6796162 B2 20040928; AT 4683 U1 20011025; CA 2365366 A1 20020619; EP 1217086 A2 20020626; EP 1217086 A3 20050706; JP 2002241885 A 20020828
DOCDB simple family (application)
US 2649401 A 20011219; AT 9282000 U 20001219; CA 2365366 A 20011218; EP 01129194 A 20011210; JP 2001380836 A 20011214