| 摘要 |
PURPOSE:To obtain a friction material which is fit for such harsh service terms that generate high friction heat on a sliding surface, by forming a carbon condensate by heating a composition containing fibrous substance and a binding agent. CONSTITUTION:A carbon condensate is formed by carbonizing a molded material by heating a composition in a non-oxidizing atmosphere whose temperature is 350-1,000 deg.C after pressurizing, heating and molding of the composite containing fibrous substance and a binding agent. When the temperature is less than 350 deg.C, the carbon condensate can not be formed and the strength is deteriorated and when the temperature exceeds 1,000 deg.C, the sublimation of the molded material takes place and the strength is deteriorated as well. With this construction, it does not happen that the wear resistance and a friction coefficient are deteriorated even if the titled friction material is used under such harsh loading terms wherein a sliding surface becomes high temperature such as 350-500 deg.C and the friction material which is superior in judder resistance can be obtained. |
