The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2005
Filed:
Nov. 21, 2002
Helmut Meinhardt, Murg, DE;
Bernd Meyer, Bad Säckingen, DE;
Matthias Knüwer, Bremen, DE;
Dietmar Fister, Murg, DE;
Wolfgang Wiezoreck, Laufenburg, DE;
Helmut Meinhardt, Murg, DE;
Bernd Meyer, Bad Säckingen, DE;
Matthias Knüwer, Bremen, DE;
Dietmar Fister, Murg, DE;
Wolfgang Wiezoreck, Laufenburg, DE;
H. C. Starck GmbH & Co. KG, Goslar, DE;
Abstract
The invention relates to a process for the production of metallic and metal-ceramic composite components by powder injection molding of a system comprising a metal composite powder, a binder and optionally a ceramic component, where the metal composite powder used is mixed with a protecting liquid in an inert atmosphere before the mixing with the binder. The invention furthermore relates to molybdenum/copper and tungsten/copper composite powders which have a primary metal particle size of predominantly <2 μm, an oxygen content of <0.8% by weight and optionally a ceramic component, to the use of these composite powders for the production of composite components by powder injection molding, and to a process for the preparation of composite powders in which oxides of molybdenum or tungsten and of copper are mixed, dry-ground and reduced using hydrogen at a temperature of from 800 to 1050° C., and a ceramic component is optionally admixed with the resultant metal composite powder.