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:
Sep. 12, 2006
Filed:
Sep. 26, 2002
Moritz Bauer, Augsburg, DE;
Michael Heine, Allmannshofen, DE;
Udo Gruber, Neusaess, DE;
Ronald Huener, Baar, DE;
Andreas Kienzle, Thierhaupten, DE;
Andreas Rahn, Wertingen, DE;
Rainer Zimmermann-chopin, Ellgau, DE;
Moritz Bauer, Augsburg, DE;
Michael Heine, Allmannshofen, DE;
Udo Gruber, Neusaess, DE;
Ronald Huener, Baar, DE;
Andreas Kienzle, Thierhaupten, DE;
Andreas Rahn, Wertingen, DE;
Rainer Zimmermann-Chopin, Ellgau, DE;
SGL Carbon AG, , DE;
Abstract
Process for producing hollow bodies comprising fibre-reinforced ceramic materials, where cores whose shape corresponds to that of the hollow spaces are produced in a first step, a green body is produced in a second step by introducing the abovementioned cores and a press moulding compound into a mould, where the press moulding compound comprises carbon fibres and/or carbon threads and pitch and/or resins, the green body is cured in a third step by heating under pressure, and then carbonised in a fourth step by heating in the absence of oxidants to form a C/C body, which latter can be infiltrated with liquid metal with retention of its shape in a fifth step, with at least partial formation of carbides, where the cores comprise a material which is non-meltable but undergoes at least sufficient shrinkage above the curing temperature of the shaping by pressing of the press moulding compound for the shrunken core to be able to be taken out from the carbonised body; hollow bodies produced by this process and also their use as brake disks, clutch disks and friction disks