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:
Mar. 24, 1992
Filed:
Sep. 05, 1990
Eberhard E Schmid, Alzenau, DE;
Gunter Neite, Bad Nauheim, DE;
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A preshaped body of ceramic fibers is placed into a mold and molten aluminum-silicon alloy material is charged into the mold. The pressure is increased in a controlled manner so that the shaped fibrous body is penetrated by the molten material and the final pressure is maintained until the molten material has entirely solidified. To permit the use of a distinctly lower final pressure, the shaped fibrous body before it is placed into the mold is impregnated with an aqueous solution of CuSO.sub.4, dried at a temperature from 60.degree. to 90.degree. C. and heated to a temperature from 500.degree. to 1200.degree. C., preferably 850.degree. to 1000.degree. C., and the molten material is caused to solidify under a final pressure from 10 to 100 bars.