Wet frictional engagement plate

Details Wet frictional engagement plate Wet frictional engagement plate

1996-12-04

1998-10-20

Bonck, Rodney H.

192 clutches and power-stop control

Elements

Engaging surfaces

106 36, F16D 6900

Patent

active

058233148

ABSTRACT:
A wet frictional engagement plate comprising a core metal having a surface and a wet frictional material containing a fiber component, a filler, a friction adjustment agent and a thermosetting resin, the wet frictional material being fixed onto a surface of the core metal. Before or after the wet frictional material is fixed onto the surface of the core metal, the surface of the wet frictional material is subjected to a surface treatment process comprising pressing a smooth-faced hot plate of a temperature in a range of from 350.degree. C. to 550.degree. C., which temperature is selected so that it does not carbonize the thermosetting resin, against the surface of the wet frictional material for a time in a range of from 1 to 5 seconds. The wet frictional engagement plate has a friction coefficient which does not change and remains stable from initial use, and also has a long endurance life.

REFERENCES:
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patent: 4014850 (1977-03-01), Thorpe
patent: 4118528 (1978-10-01), Lowry
patent: 5114769 (1992-05-01), Kani et al.
patent: 5281481 (1994-01-01), Hayward

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