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:
Jul. 19, 2016
Filed:
Nov. 09, 2011
Jörg Hachenberg, Aschaffenburg, DE;
Rudi Steinke, Hanau, DE;
Markus Vollmann, Gelnhausen, DE;
Irmgard Wissel, Freigericht, DE;
Gerhard Zellmann, Linsengericht, DE;
Elmar Hock, Mombris, DE;
Stefan Fecher, Johannesberg, DE;
Lothar Volkl, Goldbach, DE;
Jörg Hachenberg, Aschaffenburg, DE;
Rudi Steinke, Hanau, DE;
Markus Vollmann, Gelnhausen, DE;
Irmgard Wissel, Freigericht, DE;
Gerhard Zellmann, Linsengericht, DE;
Elmar Hock, Mombris, DE;
Stefan Fecher, Johannesberg, DE;
Lothar Volkl, Goldbach, DE;
DEGUDENT GMBH, Hanau, DE;
Abstract
A method for manufacturing a shaped body, comprising creating a mixture of a metal powder and binding agent, compacting the mixture to form a green compact, heating the green compact to a debinding start temperature T, debinding the green compact by controlled heating of the green compact from start temperature Tto end temperature Tat a heat-up rate R, presintering the debindered green compact to the presinter end temperature Tat a heat-up rate R, cooling the green compact from the presinter end temperature Tat a cool-down rate R, whereby at least the heat-up rate R, the presinter end temperature T, and the cool-down rate Rare tuned relative to each other in such a way that the presintered green compact forming a blank has a surface porosity of 16% to 22% after presintering, and machining and sintering of the blank to form the shaped body.