材料工程Issue(7)：5-9,5.
连续炭纤维增强受电弓滑板致密化及其性能
Densification and Properties of Continuous Carbon Fiber Reinforced Contact Strip
摘要
Abstract
In current-carrying wear condition, the temperature increase of material could affect the thermal reliability of resin-based contact strip greatly. The carbonization-liquid impregnation on the contact strip for thermal stability and densification was adopted. The influence of this method on the contact strip was investigated, meanwhile, the densification effect was evaluated, and SEM was used to analyze friction and wear mechanism. The results showed that the thermal reliability of phenolic resin are enhanced after 800℃ heat treatment; the contact strip specimen resistivity decreases significantly (about 100% after carbonization) and the impact strength decreased; and friction coefficient and wear volume increased. After four times densification treatment, the porosity is decreased about 45 % , and the impact property and wear performance are both improved. The mechanical wear of contact strip specimen are abrasive wear, adhesive wear and accompanied by oxidation without heat treatment; while after heat treatment, abrasive wear is the main wear form.关键词
炭纤维/液相浸渍/电阻率/气孔率/摩擦磨损机理Key words
carbon fiber/liquid impregnation/resistivity/porosity/friction and wear mechanism分类
通用工业技术引用本文复制引用
袁华,王成国,卢文博,张姗,陈旸,谢奔..连续炭纤维增强受电弓滑板致密化及其性能[J].材料工程,2012,(7):5-9,5.基金项目
国际科技合作项目(2009DFR50600) （2009DFR50600）
国家重点基础研究发展计划(973计划)资助项目(2011CB605601) （973计划）
国家自然科学基金(50902088) （50902088）
山东省自然科学基金(ZR2009FQ013) （ZR2009FQ013）
