摘要本课题讨论开发现有铜合金的粉末冶金替代材料用于变速箱上的拨叉销。介绍了粉末冶金的压制烧结成型的过程（压制力和压制密度，烧结工艺方案）以及在烧结成型过程中个烧结因素对制品的性能的影响；粉末冶金试样的性能测试看其是否能达到拨叉销所需的性能指标。关键词：摩擦磨损；拨叉销；粉末冶金；AbstractThis topic research development existing copper alloy powdermetallurgy substitution material uses in on the gear box to dial thefork to sell.Introduced the powder metallurgy suppression agglutinates the processwhich takes shape (suppressed strength and suppressed density,agglutinates craft plan) as well as in agglutinates takes shape in theprocess the agglomeration agent to the product performance influence;The powder metallurgy test specimen performance test looked whether itcan achieve dials performance index which the fork sells needs.Key words：Friction attrition; Dials the fork to sell; Powder metallurgy目录第 1 章 概 论.............................................................11.1 课题背景及意义.....................................................11.2 本课题及相关领域的国内外现状及进展.................................1第 2 章 试验方案...........................................................32.1 粉末冶金零件设计及可行性分析.......................................32.1.1 原拨叉销所用材料和性能要求....................................32.1.2 粉末冶金选材..................................................42.2 粉末冶金工艺设计...................................................52.2.1 选料及混料....................................................52.2.1.1 原料、辅料的选择........................................52.2.1.2 混料....................................................62.2.2 压制（成形）..................................................62.2.2.1 称料 ...................................................72.2.2.2 装料....................................................72.2.2.3 压制....
