Dry friction material and method of preparing the same

Details Dry friction material and method of preparing the same Dry friction material and method of preparing the same

1996-03-08

1998-05-19

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524424, 524440, 524441, C08J 514, C08K 322, C08K 314, C08K 328, C08K 308

Patent

active

057537259

ABSTRACT:
A friction material includes a composite hard grain disperse metal powder dispersed and held in a thermosetting resin matrix. The metal powder consists of a metal base comprising copper, aluminum, copper alloy or aluminum alloy and hard grains which are substantially homogeneously dispersed therein. The content of the hard grain disperse metal powder in the friction material is at least 20 percent and not more than 90 percent on a volume basis. The obtained friction material exhibits a stable coefficient of friction of at least 0.3 under dry sliding conditions while preventing the so-called semicontact phenomenon of locally coming into contact with a counter material even if a pressing load during frictional sliding is small.

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