Title:
METHOD FOR MANUFACTURING FRICTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/216265
Kind Code:
A1
Abstract:
[Problem] Provided is a method for manufacturing a friction material, the method being capable of uniformly performing scorching treatment on the friction material up to a deep portion from the surface layer of the friction material in a short time. [Solution] This method for manufacturing a friction material includes a step for performing scorching treatment in which the surface of the friction material is heat-treated by a laser, wherein the friction material contains at least one black-based raw material in an amount of 5-25 wt% with respect to the total amount of a friction material composition, and the Lab value L* of the friction material surface before scorching treatment is made to be 20-60.
Inventors:
KIMURA EIJI (JP)
YAGUCHI MITSUAKI (JP)
IMAI JUNICHI (JP)
YAGUCHI MITSUAKI (JP)
IMAI JUNICHI (JP)
Application Number:
PCT/JP2019/017925
Publication Date:
November 14, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
NISSHINBO BRAKE INC (JP)
International Classes:
C09K3/14; F16D69/00
Foreign References:
| JPH11269536A | 1999-10-05 | |||
| KR20170070709A | 2017-06-22 | |||
| JP2015205959A | 2015-11-19 | |||
| JP2017071711A | 2017-04-13 | |||
| JP2012255054A | 2012-12-27 | |||
| US20020046789A1 | 2002-04-25 | |||
| EP1262679A1 | 2002-12-04 | |||
| JP2015510279A | 2015-04-02 |
Other References:
See also references of EP 3812441A4
Attorney, Agent or Firm:
YAMAGUCHI Sakuo (JP)
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