DISC BRAKE PAD - NISSHINBO BRAKE INC

Title:

DISC BRAKE PAD

Document Type and Number:

WIPO Patent Application WO/2021/065797

Kind Code:

A1

Abstract:

[Problem] To provide a disc brake pad which is provided with a friction material having a scorch-treated friction surface, and is capable of obtaining a sufficient braking effect while preventing a fade phenomenon at the initial stage of use of the disc brake pad. [Solution] In a disc brake pad provided with a friction material having a friction surface that has received a heat history by scorch treatment, a part having a large heat history of scorch treatment and a part having a relatively small heat history are mixed on the friction surface. When A is a mass reduction rate when thermogravimetric analysis at 500°C is performed inside a friction material that has not received the heat history of scorch treatment, B1 is a mass reduction rate when thermogravimetric analysis at 500°C is performed on a part of the friction surface having the largest heat history of the scorch treatment, and B2 is a mass reduction rate when thermogravimetric analysis at 500°C is performed on a part of the friction surface having a relatively small heat history of the scorch treatment relative to the part having the largest heat history of the scorch treatment, the following expression is satisfied. Expression: 30 ≤ B1/A x 100 ≤ 90 50 ≤ B2/A x 100 B2/A x 100 - B1/A x 100 ≤ 60

Inventors:

KIMURA EIJI (JP)
YAGUCHI MITSUAKI (JP)
HATTORI YASUKI (JP)

Application Number:

PCT/JP2020/036627

Publication Date:

April 08, 2021

Filing Date:

September 28, 2020

Export Citation:

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Assignee:

NISSHINBO BRAKE INC (JP)

International Classes:

C08J5/14; F16D65/092; F16D69/00

Foreign References:

JPH0989023A	1997-03-31
JPS58219241A	1983-12-20
JPH09136971A	1997-05-27
JPH10318307A	1998-12-04
JP2008309174A	2008-12-25
JPH09136971A	1997-05-27
JPH10318307A	1998-12-04
JP2015051027A	2015-03-19

Other References: