发明申请
- 专利标题: FERROUS SINTERED ALLOY AND PROCESS FOR PRODUCING THE SAME AS WELL AS FERROUS-SINTERED-ALLOY MEMBER
- 专利标题(中): 用于生产这种合金粉末的合金及其制造方法
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申请号: US13125948申请日: 2009-11-06
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公开(公告)号: US20110206551A1公开(公告)日: 2011-08-25
- 发明人: Mikio Kondoh , Toshitake Miyake , Shigehide Takemoto , Kimihiko Ando , Nobuhiko Matsumoto
- 申请人: Mikio Kondoh , Toshitake Miyake , Shigehide Takemoto , Kimihiko Ando , Nobuhiko Matsumoto
- 申请人地址: JP Toyota-shi, Aichi-ken
- 专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址: JP Toyota-shi, Aichi-ken
- 优先权: JP2008-287392 20081110; JP2009-247335 20091028
- 国际申请: PCT/JP2009/068991 WO 20091106
- 主分类号: B22F3/12
- IPC分类号: B22F3/12 ; B22F1/00
摘要:
A process for producing ferrous sintered alloy according to the present invention is characterized in that it is equipped with: a compaction step of pressure compacting a raw-material powder in which an Fe-system powder is mixed with a reinforcement powder, thereby turning the raw-material powder into a powder compact; and a sintering step of heating this powder compact in an oxidation preventive atmosphere, thereby sintering the powder compact; and said reinforcement powder is an Fe—Mn—Si—C powder comprising an Fe alloy or an Fe compound that includes: Mn in an amount of from 58 to 70%; Si in an amount making a compositional ratio of the Mn with respect to the Si (i.e., Mn/Si) that is from 3.3 to 4.6; and C in an amount of from 1.5 to 3%; when the entirety is taken as 100% by mass. This Fe—Mn—Si—C powder is procurable inexpensively relatively; besides, ferrous sintered alloys, which are obtained using that, are better in terms of various characteristics than are conventional ferrous sintered alloys. Therefore, it is possible to intend to turn Cu-free ferrous sintered alloys, which are good in terms of their own characteristics, into low-cost ones.