Wet-type friction material and its manufacturing method

Details Wet-type friction material and its manufacturing method Wet-type friction material and its manufacturing method

2011-04-05

2011-04-05

O'Hern, Brent T (Department: 1794)

Stock material or miscellaneous articles

Circular sheet or circular blank

Frictional

C106S036000, C192S070110, C192S070140, C360S098080, C428S064100, C428S066600

Reexamination Certificate

active

07919165

ABSTRACT:
In a wet-type friction material, a ring-shaped friction material substrate is compressed and fixed on a surface of a core metal by heat-pressing by a manufacturing metal mold. At the same time, a taper of an angle α corresponding to a taper at an outer peripheral side of an upper mold is provided on an outer peripheral side of the ring-shaped friction material substrate. Thus, the taper is formed such that a thickness in a radial direction of the ring-shaped friction material substrate becomes smaller from a middle point toward an outer peripheral edge.

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translation of JP 2004-278609 (IKEGUCHI), Oct. 7, 2004 (See Applicant's IDS filed May 27, 2010.).
Japanese Office Action dated Aug. 24, 2010 issued in the corresponding Japanese Patent Application No. 2007-215478.

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