Method of preforming friction material

Details Method of preforming friction material Method of preforming friction material

1996-06-21

1999-04-20

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

264122, 51298, 51308, 51309, B29C 3104

Patent

active

058956166

ABSTRACT:
A friction material matrix 2 consisting of a mixture of a fibrous base material, a binder, and various fillers is introduced into a molding die 3. Rod members 5 are inserted into the molding die 3 from above. The rod members 5 are vertically actuated while a stroke of the actuation of the rod members 5 is gradually reduced. The friction material matrix 2 is compressed until its volume becomes 50 to 60 vol. % of the initially introduced friction material matrix 2. Then, a bottom plate 4 is raised to compress the friction base matrix 2, so that the friction base matrix 2 is preformed.

REFERENCES:
patent: 2573141 (1951-10-01), Heinrich
patent: 3746589 (1973-07-01), Reinke
patent: 4138463 (1979-02-01), Moneghan
patent: 5061171 (1991-10-01), Akatsu
patent: 5089032 (1992-02-01), Moran
patent: 5224970 (1993-07-01), Harakawa et al.
Copy of Search Report dated Jul. 27, 1998 for French Patent Application No. 9607818000.

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