Stock material or miscellaneous articles – Composite – Of metal
Patent
1995-07-18
1997-07-08
Turner, Archene
Stock material or miscellaneous articles
Composite
Of metal
428698, 428457, 148212, 148238, 148317, 148423, 420429, C22C 2700
Patent
active
056459440
ABSTRACT:
The invention relates to the application of molybdenum alloys, which are superficially hardened by means of nitriding, for female dies and comparable construction components for extruding light and nonferrous metals. It is possible through the application of these materials to achieve distinct improvements over the materials used heretofore with respect to the tool life, extrusion rate and surface quality of the extruded material.
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patent: 3801381 (1974-04-01), Van Thyne et al.
patent: 3830670 (1974-08-01), Van Thyne et al.
patent: 3994692 (1976-11-01), Rudy
patent: 4026730 (1977-05-01), Van Thyne et al.
patent: 4799977 (1989-01-01), Rausch
The Carburization and Nitriding of Molybdenum and TZM, Hans-Peter Martinz, Klaus Prandini, Proceedings of the 13th International Plansee Seminar, (1993), vol. 1, pp. 632-649.
Leichtfried Gerhard Dipl-Ing
Martinz Hans-Peter
Schwarzkopf Technologies Corp.
Turner Archene
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