JP6346099B2 - 金属粉末冶金用潤滑剤、その製造方法、金属粉末組成物及び金属粉末冶金製品の製造方法 - Google Patents
金属粉末冶金用潤滑剤、その製造方法、金属粉末組成物及び金属粉末冶金製品の製造方法 Download PDFInfo
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- JP6346099B2 JP6346099B2 JP2014560764A JP2014560764A JP6346099B2 JP 6346099 B2 JP6346099 B2 JP 6346099B2 JP 2014560764 A JP2014560764 A JP 2014560764A JP 2014560764 A JP2014560764 A JP 2014560764A JP 6346099 B2 JP6346099 B2 JP 6346099B2
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Images
Classifications
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- 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
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
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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
- B22F1/108—Mixtures obtained by warm mixing
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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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/026—Spray drying of solutions or suspensions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/56—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing nitrogen
- C10M105/68—Amides; Imides
-
- 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
-
- 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
- B22F2998/10—Processes characterised by the sequence of their steps
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
- C10M2215/0806—Amides used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
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Description
即ち、本発明は、下記の一般式(1)で表されるアミド系化合物及び下記の一般式(2)で表されるアミド系化合物からなる群から選択される1種のアミド系化合物を含有する粒状体からなり、粒径198μmより大きな粒子が1質量%未満であり、且つ粒径10μm以下の粒子が10質量%以下であることを特徴とする金属粉末冶金用潤滑剤である。
本発明は、上記のアミド系化合物を溶融混合した後、スプレー噴霧にて粒状体にすることを特徴とする金属粉末冶金用潤滑剤の製造方法である。
また、本発明は、メディアン径5〜300μmの金属粒子100質量部に対して、上記の金属粉末冶金用潤滑剤を0.01〜10質量部混合し、これをプレス成形して金属粒子と同成分組成の溶製材に対する相対密度が90%以下のグリーン体を得て、これを焼成して焼結体を得ることを特徴とする金属粉末冶金製品の製造方法である。
本発明の金属粉末冶金製品の製造方法は、上記の金属粉末組成物をプレス成形して該金属粒子と同成分組成の溶製材に対する相対密度が90%以下のグリーン体を得て、これを焼成するものである。本発明の金属粉末冶金用潤滑剤の添加量が0.01質量部未満になると、ラトラ値が増大する場合があり、一方、添加量が10質量部を超えると、グリーン体の密度が不均一となってしまう場合がある。
表1に記載の配合(質量部基準)で各化合物を配合し、150℃で均一になるまで溶融混合した後、スプレー噴霧器を用いて粒状化した。粒状体の粒径はスプレー噴霧器の使用条件で調整した。得られた粒状体の一部は、ふるいを使って分級して粒径及び量を調整した。試験に使用した化合物は以下の通りである。
A−2:N,N’−エチレンビスステアリン酸アミド(R4=ヘプタデシル基、R5=ヘプタデシル基、q=2)
A−3:N,N’−エチレンビスベヘニン酸アミド(R4=ヘンエイコシル基、R5=ヘンエイコシル基、q=2)
B−1:ミリスチン酸モノアミド(R6=トリデシル基)
B−2:ステアリン酸モノアミド(R6=ヘプタデシル基)
B−3:ベヘニン酸モノアミド(R6=ヘンエイコシル基)
C−1:オレイン酸モノアミド(R9=ヘプタデセニル基)
C−2:N,N’−エチレンビスオレイン酸アミド(R7=ヘプタデセニル基、R8=ヘプタデセニル基、r=2)
C−3:N,N’−エチレンビスイソステアリン酸アミド(R7=イソヘプタデシル基、R8=イソヘプタデシル基、r=2)
上記の実施例1〜21及び比較例1〜5でそれぞれ得られた金属粉末冶金用潤滑剤と金属粉(メディアン径75μmの還元純鉄粉(ヘガネスAB社製 商品名NC100.24))を、金属粉100質量部に対して金属粉末冶金用潤滑剤を1質量部の割合で混合し、Wコーン型混合機に投入し、回転速度25〜30rpmに設定して20分間混合して金属粉末組成物を調製した。得られた金属粉末組成物は3トンカムプレス機を用い、グリーン体の相対密度が該金属粒子と同成分組成の溶製材に対する密度の65〜70%となるように調整してプレス成形し、低密度グリーン体を作製した後、該低密度グリーン体を常法により焼成して低密度の冶金製品を得た。グリーン体及び焼成後の冶金製品に対して以下の試験を行った。試験結果を表4〜6に示す。
グリーン体のラトラ値はJPMA−P11−1992に準拠し、日本粉末冶金工業会で定められた圧粉試験用標準金型(内径φ11.285mm、有効長60mm)を用いて測定した。なお、製品として量産可能な目安は、グリーン体のラトラ値が3.0%以下である。
グリーン体の金型からの抜出し圧はJPMA−P13−1992に準拠し、調製した金属粉末組成物を7.0g精秤し、これを圧粉試験用金型のキャビティーに流し込み、上下パンチで挟み込んで成形荷重800MPaで圧縮し、上パンチのみ抜き取り円筒キャップをかぶせて抜出し力を測定した。成形体の直径及び高さをノギスで測定して曲面の面積を求め、1cm2あたりの抜出し力を抜出し圧とした。また、密度は、成形体の質量を精密天秤で計量し、単位体積あたりの質量を密度とした。
焼成により得た冶金製品の表面を、拡大鏡で20倍に拡大し、表面の粗さを目視で観察した。評価は以下の基準による。
◎:表面が滑らかで製品としてまったく問題ない
○:表面にわずかな粗さが見られるが、製品としては問題ない
△:表面の粗さが目立ち、製品とはできない
×:表面の粗さが目立ち、更に表面に窪みが存在するため製品とはできない
Claims (6)
- 下記の一般式(3)で表されるアミド系化合物(A)と、下記の一般式(4)で表されるアミド系化合物(B)と、下記の一般式(5)又は下記の一般式(6)で表されるアミド系化合物(C)とを含有する粒状体からなり、前記(A)成分10質量部に対して、前記(B)成分が5〜15質量部、前記(C)成分が0.5〜3質量部であり、粒径198μmより大きな粒子が1質量%未満であり、且つ粒径10μm以下の粒子が10質量%以下であることを特徴とする金属粉末冶金用潤滑剤。
- 最大粒径が100μm以下であり、且つ粒径10μm以下の粒子が1質量%以下であることを特徴とする請求項1に記載の金属粉末冶金用潤滑剤。
- 低密度粉末冶金製品用であることを特徴とする請求項1又は2に記載の金属粉末冶金用潤滑剤。
- 請求項1〜3のいずれか一項に記載の金属粉末冶金用潤滑剤を製造する方法であって、前記アミド系化合物を溶融混合した後、スプレー噴霧にて粒状体にすることを特徴とする金属粉末冶金用潤滑剤の製造方法。
- メディアン径5〜300μmの金属粒子100質量部に対して、請求項1〜3のいずれか一項に記載の金属粉末冶金用潤滑剤を0.01〜10質量部添加したことを特徴とする金属粉末組成物。
- メディアン径5〜300μmの金属粒子100質量部に対して、請求項1〜3のいずれか一項に記載の金属粉末冶金用潤滑剤を0.01〜10質量部混合し、これをプレス成形して該金属粒子と同成分組成の溶製材に対する相対密度が90%以下のグリーン体を得て、これを焼成して焼結体を得ることを特徴とする金属粉末冶金製品の製造方法。
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PCT/JP2014/052529 WO2014123106A1 (ja) | 2013-02-05 | 2014-02-04 | 金属粉末冶金用潤滑剤、その製造方法、金属粉末組成物及び金属粉末冶金製品の製造方法 |
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CN116041786A (zh) * | 2022-12-09 | 2023-05-02 | 青岛赛诺新材料有限公司 | 耐高温抗析出复合型ebs润滑剂、制备方法及其应用 |
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US4834800A (en) | 1986-10-15 | 1989-05-30 | Hoeganaes Corporation | Iron-based powder mixtures |
JP3004800B2 (ja) * | 1991-03-27 | 2000-01-31 | 川崎製鉄株式会社 | 粉末冶金用鉄基粉末混合物及びその製造方法 |
US5298055A (en) | 1992-03-09 | 1994-03-29 | Hoeganaes Corporation | Iron-based powder mixtures containing binder-lubricant |
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US7150775B2 (en) * | 2001-05-21 | 2006-12-19 | React-Nti, Llc | Powder metal mixture including micronized cellulose fibers |
US7261759B2 (en) * | 2001-05-21 | 2007-08-28 | React-Nti, Llc | Powder metal mixture including micronized starch |
JP4182392B2 (ja) | 2002-04-01 | 2008-11-19 | 三菱製鋼株式会社 | 低密度焼結体を得るための鉄系合金圧粉体 |
JP2004002964A (ja) * | 2002-04-01 | 2004-01-08 | Jfe Steel Kk | 鉄基粉末混合物 |
JP2005095939A (ja) * | 2003-09-25 | 2005-04-14 | Sumitomo Electric Ind Ltd | 粉末成形方法 |
US7494600B2 (en) * | 2003-12-29 | 2009-02-24 | Höganäs Ab | Composition for producing soft magnetic composites by powder metallurgy |
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