JP4188288B2 - 動圧型多孔質含油軸受の製造方法 - Google Patents
動圧型多孔質含油軸受の製造方法 Download PDFInfo
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- JP4188288B2 JP4188288B2 JP2004213354A JP2004213354A JP4188288B2 JP 4188288 B2 JP4188288 B2 JP 4188288B2 JP 2004213354 A JP2004213354 A JP 2004213354A JP 2004213354 A JP2004213354 A JP 2004213354A JP 4188288 B2 JP4188288 B2 JP 4188288B2
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- bearing
- dynamic pressure
- oil
- sintered metal
- peripheral surface
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Description
ρ1:多孔質体の密度
ρ0:その多孔質体に細孔が無いと仮定した場合の密度
1a 軸受本来
1a1 表層部分
1a2 内部側部分
1b 軸受面
1c 動圧溝
Claims (2)
- 焼結金属からなる多孔質の軸受本体の内周面に、動圧溝を有する軸受面が形成された動圧型多孔質含油軸受の製造方法であって、
下記式で表される密度比α(%)が75≦α<85である円筒状の焼結金属素材を製作し、
前記軸受面の形状に対応した凹凸状の成形型を形成したコアロッドを前記焼結金属素材の内周面に所定の内径すきまを設けて挿入し、
前記焼結金属素材を前記コアロッドと伴に下降させて、前記焼結金属素材の外周面を所定の外径しめしろでダイに圧入すると共に、上パンチと下パンチによって上下方向から加圧して、前記焼結金属素材に圧迫力を加え、前記焼結金属素材の内周面を前記外径しめしろと内径すきまとの差に略等しい加圧量で前記コアロッドの成形型に加圧することにより、前記軸受面を塑性加工により成形する工程を含むことを特徴とする動圧型多孔質含油軸受の製造方法。
密度比α(%)=(ρ1/ρ0)×100
ρ1:多孔質体の密度
ρ0:その多孔質体に細孔が無いと仮定した場合の密度 - 前記動圧溝を成形する工程の前に、前記焼結金属素材の内周面にサイジングを施す工程を有することを特徴とする請求項1に記載の動圧型多孔質含油軸受の製造方法。
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JP2004213354A JP4188288B2 (ja) | 2004-07-21 | 2004-07-21 | 動圧型多孔質含油軸受の製造方法 |
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JP2004213354A JP4188288B2 (ja) | 2004-07-21 | 2004-07-21 | 動圧型多孔質含油軸受の製造方法 |
Related Parent Applications (1)
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JP34962897A Division JP3607478B2 (ja) | 1997-12-18 | 1997-12-18 | 動圧型多孔質含油軸受 |
Publications (2)
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JP2004308917A JP2004308917A (ja) | 2004-11-04 |
JP4188288B2 true JP4188288B2 (ja) | 2008-11-26 |
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JP2004213354A Expired - Lifetime JP4188288B2 (ja) | 2004-07-21 | 2004-07-21 | 動圧型多孔質含油軸受の製造方法 |
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JP (1) | JP4188288B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8600175B2 (en) | 2009-10-23 | 2013-12-03 | Canon Kabushiki Kaisha | Apparatus and method of processing image including character string |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5936838B2 (ja) * | 2010-11-25 | 2016-06-22 | Ntn株式会社 | 転がり軸受用軌道輪の製造方法 |
AT517488B1 (de) * | 2015-07-20 | 2017-09-15 | Miba Sinter Austria Gmbh | Verfahren zum Herstellen eines ringförmigen Sinterbauteils |
-
2004
- 2004-07-21 JP JP2004213354A patent/JP4188288B2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8600175B2 (en) | 2009-10-23 | 2013-12-03 | Canon Kabushiki Kaisha | Apparatus and method of processing image including character string |
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JP2004308917A (ja) | 2004-11-04 |
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