Low-wear microporous friction material with high stability coefficient and manufacturing method thereof
US9416240B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2012 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Oct 11, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A low-wear microporous friction material with a high stability coefficient and a manufacturing method thereof are provided. The formula of the friction material includes GM-15 resin 15-50 wt %, rubber 0-10 wt %, shaping aid 0.5-5 wt %, sintering aid 0.5-5 wt %, foaming aid 0.5-5 wt %, kaolin powder 0.5-20 wt %, barite powder 5-40 wt %, carbon fiber 2-20 wt %, KEVLAR 1-5 wt %, zinc oxide 1-10 wt %, and iron oxide red 0-2 wt %. By adjusting the hydrophilicity of the friction material and controlling the surface tension of the material, the friction coefficient of the material is kept from lowering under wet conditions and is rendered stable in dry and wet conditions. More specifically, the friction coefficient of the friction material stays above 0.25 under wet conditions, and the stability coefficient of the friction coefficient can reach 85% or above on an MM 1000 tester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.