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.

Date of Patent:
Feb. 06, 2001

Filed:

Jul. 07, 1998
Applicant:
Inventors:

Yasuhiro Nakao, Saitama, JP;

Kunitoshi Sugaya, Saitama, JP;

Hiroto Shoji, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 1/914 ; C22C 1/09 ;
U.S. Cl.
CPC ...
B22D 1/914 ; C22C 1/09 ;
Abstract

For forming a preform of composite material, such as aluminum-based composite material (MMC) by using friction during the forming thereof, ceramic reinforcement, such as Al,O,and binder are prepared, and the prepared reinforcement and the silanor group binder are put into a die for press forming. During the forming, polycondensation occurs due to frictional heat generated between the fibrous or grain-like particles of the reinforcement and the silanor group binder to harden it, thereby obtaining a preform in which the particles of the reinforcement are fixedly connected to one another.


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