- 专利标题： Method for manufacturing sintered bearing, sintered bearing, and vibration motor equipped with same
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申请号： US14777889申请日： 2014-03-19
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公开(公告)号： US10536048B2公开(公告)日： 2020-01-14
- 发明人: Yoshinori Ito , Yousuke Sugai
- 申请人： Yoshinori Ito , Yousuke Sugai
- 申请人地址： JP Osaka
- 专利权人： NTN CORPORATION
- 当前专利权人： NTN CORPORATION
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P
- 优先权： JP2013-062176 20130325; JP2013-081174 20130409; JP2014-007916 20140120; JP2014-008889 20140121
- 国际申请： PCT/JP2014/057442 WO 20140319
- 国际公布： WO2014/156856 WO 20141002
- 主分类号： H02K5/16
- IPC分类号： H02K5/16 ; F16C33/06 ; F16C33/10 ; F16C33/12 ; C22C33/02 ; H02K7/06 ; B22F1/00 ; B22F7/00
摘要：
The present invention relates to a method for manufacturing a sintered bearing having a bearing surface that forms a bearing gap with a shaft to be supported, in its inner periphery. This manufacturing method includes: a compacting step P2 of compacting a base powder containing a diffusion alloyed powder 11 prepared by partially diffusing a copper powder in an iron powder as a main material, a low-melting-point metal powder 14, and a solid lubricant to obtain a green compact, and a sintering step P3 of sintering the green compact 4′ to obtain a sintered compact 4″.
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