Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Friction material

A technology of friction materials and friction adjustment materials, applied in the direction of friction linings, other chemical processes, chemical instruments and methods, etc., can solve the problems that cannot be said to fully ensure the effectiveness and wear resistance of brakes, so as to ensure the effectiveness and durability abrasive effect

Active Publication Date: 2016-04-27
NISSHINBO BRAKE INC
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, although the friction material described in Patent Document 1 and / or Patent Document 2 satisfies the above regulations in terms of the content of the copper component, it cannot be said that the braking effectiveness and wear resistance during high-speed high-load braking are sufficiently ensured. performance requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Friction material
  • Friction material
  • Friction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] Hereinafter, the present invention will be specifically described by showing examples and comparative examples, but the present invention is not limited to the following examples.

[0055] [Methods of Manufacturing Friction Materials of Examples 1-11 and Comparative Examples 1-4]

[0056] The friction material compositions having the compositions shown in Table 1 and Table 2 were mixed for 5 minutes using a Loedige mixer, and pressurized at 30 MPa for 10 seconds in a molding die to perform preliminary molding. The preformed product was superimposed on a steel liner that had been washed, surface treated, and coated with an adhesive material in advance, and was molded in a thermoforming mold at a molding temperature of 150°C and a molding pressure of 40MPa for 10 minutes, and then Heat treatment (post-curing) was performed at 200° C. for 5 hours, and polishing was performed to form a friction surface, thereby producing disc brake pads for cars (Examples 1 to 11 and Compar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Mohs hardnessaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The present invention addresses the problem of providing a friction material for a disc brake pad, the material being able to maintain braking effect and abrasion resistance at high speeds and high loads while satisfying laws and regulations relating to copper content. The solution to this problem is a non-asbestos organic (NAO) friction material used in a disc brake pad and formed by molding a friction material composition comprising a fiber substrate, a binding material, and a friction adjustment material, wherein used is a friction material composition comprising, as an inorganic friction adjustment material, and with respect to the total weight of the friction composition, 1-10% by weight of one or more selected from the group consisting of aluminum particles, aluminum fibers, alloy particles with aluminum as a primary constituent, and alloy fibers with aluminum as a primary constituent and 5-20% by weight of hard inorganic particles with a mean particle diameter of 1-20 mum and a Mohs hardness of at least 4.5, and the friction material composition also including a total copper content of less than 0.5% by weight.

Description

technical field [0001] The present invention relates to a friction material obtained by molding a friction material composition of NAO (Non-Asbestos-Organic, non-asbestos organic) material used for disc brake pads of automobiles and the like. Background technique [0002] Conventionally, disc brakes have been used as braking devices for automobiles, and as friction members of the disc brakes, disc brake pads obtained by attaching friction materials to metal base members have been used. [0003] Friction materials are classified into the following materials: semi-metallic friction materials containing 30% by weight or more and less than 60% by weight of steel fibers as a fiber base material with respect to the total friction material composition; steel fibers are contained in a part of the fiber base material and contain A metal-less friction material with less than 30% by weight of steel fibers relative to the total amount of the friction material composition; and an NAO mat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D2200/0069F16D2200/0086F16D69/026C08L101/06F16D2200/0026F16D2200/003
Inventor 梶真也山上凉岩井友美
Owner NISSHINBO BRAKE INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com