Patents by Inventor Ding Quan Zhang

Ding Quan Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low-wear microporous friction material with high stability coefficient and manufacturing method thereof
    Patent number: 9416240
    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.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: August 16, 2016
    Assignee: SHANGHAI REINPHEN COMPOSITE MATERIALS CO., LTD
    Inventor: Ding Quan Zhang
  • LOW-WEAR MICROPOROUS FRICTION MATERIAL WITH HIGH STABILITY COEFFICIENT AND MANUFACTURING METHOD THEREOF
    Publication number: 20150218333
    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.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 6, 2015
    Inventor: Ding Quan Zhang