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:
Nov. 10, 1992
Filed:
Mar. 03, 1992
Gundolf Meyer, Birmenstorf, CH;
Christoph Tonnes, Wettingen, CH;
Asea Brown Boveri Ltd., Baden, CH;
Abstract
The process serves for producing a carbon-containing sintered compact from steel powder. In this process, the steel powder is heated to sintering temperature in an atmosphere containing, at least for a time, carbon monoxide, is kept at sintering temperature over a predetermined period of time and the sintered compact formed thereby is subsequently cooled. In this process, the carbon content of the sintered compact to be produced is to be set to a predetermined value in a way which is simple and suitable for mass production. This is achieved by the partial pressure of the carbon monoxide in the atmosphere being changed selectively during the execution of the production process, and by this change being controlled in such a way that the carbon content of the sintered compact is set to the predetermined value after execution of the production process.