JP2010216016A - 粉末冶金用混合物及びこれを用いた粉末冶金部品の製造方法 - Google Patents
粉末冶金用混合物及びこれを用いた粉末冶金部品の製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F2003/023—Lubricant mixed with the metal powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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Abstract
【解決手段】上記課題は、次の成分組成からなる粉末冶金用混合物により達成される:
質量基準で、バルブ鋼粉末 15〜30%、Ni粉末 0〜10%、Cu粉末0〜5%、
フェロアロイ粉末 5〜15%、工具鋼粉末 0〜15%、固体滑剤 0.5〜5%、グラファイト 0.5〜2.0%、一時滑剤 0.3〜1.0%及び残部としてMoを0.6〜2.0%含む低合金鋼粉末。
【選択図】図5
Description
・下記表2の成分組成の金属粉末混合物を準備する工程;
・均一に混合するために該混合物を混合する工程;
・少なくとも1段階で選択された緻密化圧縮にて、該混合された混合物を最小密度6.7g/cm3まで、少なくとも概略成形体へ生の緻密体を圧縮する工程;及び
・圧縮した生の緻密体を1段階で焼結させて、粉末冶金部品を製造する工程。
以下の処方に従い、ダブルコーンミキサー中で粉末を30分間混合する。混合物はバルブ鋼粉末20%(OMG Americasから入手できる23−8N、21−4N又は21−2Nなど)、Incoから入手できるニッケル5%、OMG Americasから入手できる銅2%、フェロアロイ粉末10%(ShieldAlloy製のFe−Mo粉末など)、工具鋼粉末10%(Powdrex製のM系工具鋼粉末など)、固形滑剤3%(Hohman Plating製の二硫化モリブデンなど)、Southwestern Graphite製のグラファイト1%、固形滑剤1%(Millwhite製の粉末珪酸マグネシウム水和物又はタルクなど)、Baychem製の不安定粉末滑剤ACRAWAX C 1%、及び残部として0.85〜1.5%のモリブデンを含有するHoeganaes製の低合金鋼粉末からなる。
以下の処方に従い、ダブルコーンミキサー中で粉末を30分間混合する。混合物はバルブ鋼粉末20%(OMG Americasから入手できる23−8N、21−4N又は21−2N等)、Inco製のニッケル5%、OMG Americas製の銅2%、フェロアロイ粉末10%(ShieldAlloy製のFe−Mo粉末等)、工具鋼粉末10%(Powdrex製のM系工具鋼粉末等)、固形滑剤3%(Hohman Plating製の二硫化モリブデン等)、Southwestern Graphite製のグラファイト1%、固形滑剤1%(Millwhite製の粉末珪酸マグネシウム水和物又はタルク等)、Baychem製の不安定粉末滑剤ACRAWAX C 1%、及び残部として1.5%のモリブデンを含有するHoeganaes製の低合金鋼粉末からなる。
12 バルブ
14 バルブステムガイド
16 バルブシート
18 インサート
24 シリンダーヘッド
26 キャップ
28 丸み
30 バルブステム
Claims (11)
- 前記粉末冶金用混合物が、圧力50〜65トン/平方インチ(689〜896MPa)で圧縮成形される請求項1記載の粉末冶金用混合物。
- 前記一時滑剤が、ステアリン酸塩、ステアリン酸アミド、ステアリン酸亜鉛、ステアリン酸リチウム、エチレンビスステアリン酸アミド、及び合成ワックス滑剤からなる群より選択される請求項1記載の粉末冶金用混合物。
- 前記固形滑剤が、水和マグネシウム珪酸塩鉱物、スルフィド滑剤、MnS、CaF2、WS2、MoS2、セレン化物滑剤、テルル化物滑剤及び雲母からなる群より選択される請求項1記載の粉末冶金用混合物。
- さらに、熱処理、蒸気処理及び銅溶浸処理からなる群より選択される処理工程を含む請求項5記載の粉末冶金部品の製造方法。
- 熱処理工程が、粉末冶金部品を浸炭させる工程を含む請求項6記載の粉末冶金部品の製造方法。
- 熱処理工程が、粉末冶金部品を浸炭窒化させる工程を含む請求項6記載の粉末冶金部品の製造方法。
- さらに粉末冶金部品を機械加工してバルブシートインサートとする工程を含む請求項6記載の粉末冶金部品の製造方法。
- 低合金鋼粉末が、Mo 0.6〜2.0質量%、Ni 0〜5質量%及び銅 0〜3質量%を含む請求項6記載の粉末冶金部品の製造方法。
- フェロアロイ粉末が、フェロモリブデン粉末である請求項6記載の粉末冶金部品の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/196007 | 1998-11-19 | ||
US09/196,007 US6139598A (en) | 1998-11-19 | 1998-11-19 | Powdered metal valve seat insert |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP11329599A Division JP2000160307A (ja) | 1998-11-19 | 1999-11-19 | 粉末冶金バルブシ―トインサ―ト |
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JP2010216016A true JP2010216016A (ja) | 2010-09-30 |
JP4891421B2 JP4891421B2 (ja) | 2012-03-07 |
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JP11329599A Pending JP2000160307A (ja) | 1998-11-19 | 1999-11-19 | 粉末冶金バルブシ―トインサ―ト |
JP2010103580A Expired - Lifetime JP4891421B2 (ja) | 1998-11-19 | 2010-04-28 | 粉末冶金用混合物及びこれを用いた粉末冶金部品の製造方法 |
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JP11329599A Pending JP2000160307A (ja) | 1998-11-19 | 1999-11-19 | 粉末冶金バルブシ―トインサ―ト |
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US (2) | US6139598A (ja) |
EP (1) | EP1002883B1 (ja) |
JP (2) | JP2000160307A (ja) |
KR (1) | KR100476899B1 (ja) |
CN (2) | CN100374605C (ja) |
BR (1) | BR9907397A (ja) |
DE (1) | DE69906221T2 (ja) |
PL (1) | PL191887B1 (ja) |
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JP2020517830A (ja) * | 2017-04-27 | 2020-06-18 | フェデラル−モーグル バルブトレイン ゲーエムベーハーFederal−Mogul Valvetrain Gmbh | ポペットバルブおよびその製造方法 |
US10923257B2 (en) | 2015-06-04 | 2021-02-16 | Kobe Steel, Ltd. | Powder mixture for powder magnetic core, and powder magnetic core |
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JP2020517830A (ja) * | 2017-04-27 | 2020-06-18 | フェデラル−モーグル バルブトレイン ゲーエムベーハーFederal−Mogul Valvetrain Gmbh | ポペットバルブおよびその製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
CN1104510C (zh) | 2003-04-02 |
DE69906221T2 (de) | 2003-11-13 |
EP1002883A1 (en) | 2000-05-24 |
CN1438350A (zh) | 2003-08-27 |
US6139598A (en) | 2000-10-31 |
EP1002883B1 (en) | 2003-03-26 |
PL336620A1 (en) | 2000-05-22 |
KR100476899B1 (ko) | 2005-03-17 |
JP2000160307A (ja) | 2000-06-13 |
CN1260405A (zh) | 2000-07-19 |
JP4891421B2 (ja) | 2012-03-07 |
US6214080B1 (en) | 2001-04-10 |
PL191887B1 (pl) | 2006-07-31 |
KR20000035586A (ko) | 2000-06-26 |
DE69906221D1 (de) | 2003-04-30 |
BR9907397A (pt) | 2000-10-24 |
CN100374605C (zh) | 2008-03-12 |
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