公开(公告)号：US06638334B2

公开(公告)日：2003-10-28

申请号：US10088082

申请日：2002-07-01

申请人： Keiji Nakamura ,  Takemasa Honma ,  Yasuhiro Hashimoto ,  Osamu Sakaguchi ,  Kengo Taneichi ,  Toshiya Yamamoto

发明人： Keiji Nakamura ,  Takemasa Honma ,  Yasuhiro Hashimoto ,  Osamu Sakaguchi ,  Kengo Taneichi ,  Toshiya Yamamoto

IPC分类号： C22C105

CPC分类号： C22C32/0021 ,  B22F2998/00 ,  C22C1/0466 ,  H01H1/0231 ,  H01H1/36 ,  H01H11/048 ,  H01R39/025 ,  H01R43/06 ,  Y10T428/12063 ,  Y10T428/12896 ,  B22F7/04

摘要： The present invention is aimed at providing a sliding contact material that has an alloy composition containing no harmful substance like Cd, especially excellent contact resistance properties, electrical functions that are good and is not subject to secular change, and abrasion resistance practically bearing comparison with conventional sliding contact materials, and is aimed at lengthening the life of a motor by the use of a sliding contact material having excellent durability as a commutator for a small direct-current motor. The present invention is a sliding contact material of an Ag—Ni-based alloy that is used in sliding part electrically switching on and off by mechanical sliding action, and the material is a sliding contact material of Ni metal particle-dispersed-type Ag—Ni-based alloy that is produced in such a method that 0.7 to 3.0 wt. % Ni powder, an additive of Li2CO3 powder corresponding to 0.01 to 0.50 wt. % Li after being converted to metal and the balance of Ag powder are mixed and stirred to form a uniformly dispersed mixture, then the mixture is treated with forming and sintering processes.

摘要翻译： 本发明的目的在于提供一种滑动接触材料，其具有不含Cd等有害物质的合金组成物，特别优异的接触电阻性能，良好的电化学功能，不会发生长期变化，并且耐磨性实际上与传统的 滑动接触材料，旨在通过使用具有优异的耐久性的滑动接触材料作为小型直流电动机的换向器来延长电动机的寿命。 本发明是一种用于通过机械滑动动作电气接通和断开的滑动部分中的Ag-Ni基合金的滑动接触材料，并且该材料是Ni金属颗粒分散型Ag-Ni基合金的滑动接触材料， Ni基合金，其以0.7〜3.0重量％ ％Ni粉末，相当于0.01〜0.50重量％的Li2CO3粉末添加剂。 将Li转化成金属后，将Ag粉末的余量混合搅拌，形成均匀分散的混合物，然后用成型和烧结工艺处理混合物。