CN1373684A - 润滑剂复合物及其制备方法 - Google Patents

润滑剂复合物及其制备方法 Download PDF

Info

Publication number
CN1373684A
CN1373684A CN00812655A CN00812655A CN1373684A CN 1373684 A CN1373684 A CN 1373684A CN 00812655 A CN00812655 A CN 00812655A CN 00812655 A CN00812655 A CN 00812655A CN 1373684 A CN1373684 A CN 1373684A
Authority
CN
China
Prior art keywords
lubricant
composite
oleamide
fusing point
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN00812655A
Other languages
English (en)
Other versions
CN1185045C (zh
Inventor
H·维达森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoganas AB
Original Assignee
Hoganas AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoganas AB filed Critical Hoganas AB
Publication of CN1373684A publication Critical patent/CN1373684A/zh
Application granted granted Critical
Publication of CN1185045C publication Critical patent/CN1185045C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • 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
    • 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
    • C10N2040/30—Refrigerators lubricants or compressors lubricants
    • 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
    • C10N2040/32—Wires, ropes or cables lubricants
    • 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
    • C10N2040/34—Lubricating-sealants
    • 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
    • C10N2040/36—Release agents or mold release agents
    • 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
    • C10N2040/38—Conveyors or chain belts
    • 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
    • C10N2040/40—Generators or electric motors in oil or gas winning field
    • 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
    • C10N2040/42—Flashing oils or marking oils
    • 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
    • C10N2040/44—Super vacuum or supercritical use
    • 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
    • C10N2040/50—Medical uses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Powder Metallurgy (AREA)

Abstract

本发明涉及用于粉末冶金的润滑剂复合物的制备方法,包括下述步骤:选择熔点高于120℃的第一种润滑剂和熔点低于110℃的第二种润滑剂;在高温下将所述润滑剂混合以使润滑剂熔化并且将所获混合物快速冷却以获得包括亚稳相的润滑剂复合物。本发明也涉及所获得的润滑剂复合物。

Description

润滑剂复合物及其制备方法
本发明涉及一种用于粉末冶金的润滑剂复合物以及该润滑剂复合物的制备和用途。更具体地，本发明涉及一种包括至少两种润滑剂的组合的润滑剂复合物。
金属粉如铁粉用来制备小且相当复杂的部件如齿轮。采用粉末冶金技术制造这类金属部件包括下述步骤：
金属粉与润滑剂及其它添加剂混合形成混合物，
将获得的混合物倒入模具中并且采用高压，通常为200-1000Mpa的量级，压制成部件，
将该部件从模具中取出并且加热至高温以使润滑剂分解并消除，
将该部件加热至更高温度以使部件中所有金属粒子烧结一起，
将该部件冷却，之后备用。
向金属粉末中添加润滑剂有几个原因，一个原因是在压制过程中润滑剂通过对粉末内部进行润滑有助于用于烧结的压坯的制备，通过选择适当的润滑剂，能够获得通常所要求的较高密度。另外，润滑剂能够提供将压实件从模具中取出时所必需的润滑作用，润滑不充分会由于在取出过程中的过度摩擦使模具表面发生磨损和划伤，从而导致模具的早期失效。润滑不充分的问题可以通过两种方式解决：增大润滑剂的量或选择更有效的润滑剂。然而，增加润滑剂的量会产生不希望的副作用，即：由更好的“内部润滑”带来的密度增加会由于润滑剂体积的增加而受到损害。因此，更好的选择应该是选择更有效的润滑剂。
然而，已知的高效润滑剂均具有低熔点。这一显著特点导致在压制过程之前就已在粉末流动和表观密度上出现问题。相当自由的粉末流动对生产压机中的平稳操作是必需的，而稳定的表观密度则有助于生产中获得高密度。结果，所获部件均具有相等的重量并且表现出严格的尺寸公差，从而减少了对后处理如校正的需要。
非常有效的润滑剂由于对粉末性能的有害作用，迄今它们的使用一直受到限制。本发明的目的是提供一种使这些润滑剂得到工业应用的方法。
简言之，根据本发明的制备新的润滑剂复合物的方法包括下述步骤：
选择熔点或其主要部分的熔点低于110℃的第一种润滑剂以及熔点或其主要部分的熔点高于120℃的第二种润滑剂；
在高温下将所述润滑剂混合以使润滑剂熔化，以及，
将所获混合物快速冷却以获得亚稳态的润滑剂复合物。
属于第一组润滑剂的实例有饱和和不饱和脂肪酸酰胺和二酰胺，例如硬脂酰胺、油酰胺和亚乙基-二酸酰胺，第一种润滑剂的量取决于具体的润滑剂，可以在5至75％(重量)之间变化。
第二种润滑剂可以选自目前在粉末冶金中使用的润滑剂，并且，优选该润滑剂选自于脂肪酸二酰胺，例如亚乙基-二硬脂酰胺(EBS)。
这两种类型的润滑剂的混合物在混合期间加热至高于第二种润滑剂的熔点的温度达一定时间以充分形成一种均匀的混合物，之后，将其快速冷却，此为根据本发明的方法的关键特征。
快速冷却速度可以通过几种公知方法获得，例如，将熔体倒入液氮或水中，对熔体中的材料雾化处理或者将熔体倒在冷却的金属表面上。如需的冷却速度与组成有关，而且也可以随着第一种与第二种润滑剂的相对量改变。例如，高于100℃/S的冷速对于某些组成和含量而言是必需的，而在其它情况下，1℃/S的冷却速度可能就已足够。无论如何，加速或强制冷却都是必需的，以便获得亚稳相，此为根据本发明的新型润滑剂复合物的区别特征，而且，亚稳相也能够使较低熔点的润滑剂的有价值的润滑性能得到利用，因为亚稳相形式的低熔点润滑剂仍保持良好的润滑效果但又减轻了对流动的不利影响。
根据制备模式，然后，固化的润滑剂复合物可以采用例如研磨破碎成适当的粒子尺寸，优选的平均粒子尺寸为3-150μm。
球形最为理想，因为这会获得最高的流动速率和表观密度。
当与金属粉末混合时，所述润滑剂复合物加之任选的传统固体润滑剂的合适浓度为0.1-5％(重量)，优选为0.3-1％(重量)。
下面通过非限制性实例来对本发明进行说明。
铁粉末混合物采用由不同方法制备的润滑剂组合物制备而成。所述润滑剂包括75％的熔点约145℃的亚乙基-二硬脂酰胺(EBS，即市售的德国Hoechst AG公司的Hoechst蜡)和25％的熔点约70℃的油酰胺(Croda公司出品)的普通配方(Common recipy)。铁粉末为ASC100.29(可购自瑞典的Hoganas AB公司)，如将0.5％(重量)的石墨与铁粉末混合一起。
第一种润滑剂组合物的制备包括将两种组分分别微粉化至低于30μm的平均粒子尺寸并且随后混合至铁粉末混合物中。
第二种润滑剂组合物的制备包括先将两种组分物理混合，然后在180℃进行熔化至充分时间以使各组分混合。之后，缓慢冷却至室温。然后将所获材料微粉化至与第一种润滑剂组合物相似的粒子尺寸并且混合至铁粉末混合物中。
第三种润滑剂组合物的制备方法与第二种相类，只是熔化的组合物被强制通过狭窄的毛细管送入液氮中。从而实现快速冷却，物料是最终微粉化的组合物并且被混合至如前述的铁基粉末中。
归纳在下表中的结果证实：只有当快冷时才能获得有用的粉末混合物。
润滑剂   主要峰的起始熔点(℃)   流动性(S/50g)     表观密度(g/cm3)
  快速冷却     107    29.7     2.99
  物理混合     69    无流动     3.07
  缓慢冷却     59    无流动     2.95

Claims (6)

1.用于粉末冶金的润滑剂复合物的制备方法，其特征在于：
选择熔点或其主要部分的熔点高于120℃的第一润滑剂和熔点或其主要部分的熔点低于110℃的第二种润滑剂；
在高温下将各润滑剂混合以使所述润滑剂熔化；
将所述混合物快速冷却以获得包括亚稳相的润滑剂复合物。
2.根据权利要求1的方法，其特征在于：第一种润滑剂选自于饱和和不饱和脂肪酸酰胺和二酰胺，例如硬脂酰胺、油酰胺和亚乙基-二油酰胺，第二种润滑剂选自于脂肪酸二酰胺，例如亚乙基-二硬脂酰胺(EBS)。
3.根据权利要求2的方法，其特征在于第一种润滑剂是EBS，第二种是油酰胺。
4.根据权利要求1的方法，其特征在于油酰胺在总润滑剂中的比例为5-75％重量，优选15-45％重量，最优选20-30％重量。
5.用于粉末冶金的润滑剂复合物，其特征在于其基本上是由至少两种如权利要求1中限定的润滑剂构成的并且通过将所述润滑剂的熔融混合物快速冷却获得的复合物。
6.根据权利要求5的润滑剂复合物，其特征在于它包括亚乙基-二硬脂酰胺和油酰胺的亚稳相。
CNB008126550A 1999-09-10 2000-09-07 润滑剂复合物及其制备方法 Expired - Lifetime CN1185045C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE99032450 1999-09-10
SE9903245A SE9903245D0 (sv) 1999-09-10 1999-09-10 Lubricant composite and process for the preparation thereof

Publications (2)

Publication Number Publication Date
CN1373684A true CN1373684A (zh) 2002-10-09
CN1185045C CN1185045C (zh) 2005-01-19

Family

ID=20416956

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008126550A Expired - Lifetime CN1185045C (zh) 1999-09-10 2000-09-07 润滑剂复合物及其制备方法

Country Status (13)

Country Link
US (1) US6395688B2 (zh)
EP (1) EP1214143B1 (zh)
JP (1) JP4758045B2 (zh)
CN (1) CN1185045C (zh)
AU (1) AU7465400A (zh)
BR (1) BR0013913B1 (zh)
CA (1) CA2382717C (zh)
DE (1) DE60026045T2 (zh)
ES (1) ES2254226T3 (zh)
MX (1) MXPA02002564A (zh)
SE (1) SE9903245D0 (zh)
TW (1) TW513484B (zh)
WO (1) WO2001019508A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113710392A (zh) * 2019-04-23 2021-11-26 杰富意钢铁株式会社 粉末冶金用混合粉

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7153594B2 (en) * 2002-12-23 2006-12-26 Höganäs Ab Iron-based powder
US7329302B2 (en) * 2004-11-05 2008-02-12 H. L. Blachford Ltd./Ltee Lubricants for powdered metals and powdered metal compositions containing said lubricants
US7309105B2 (en) * 2006-01-09 2007-12-18 L&P Property Management Company Lift wire lumbar
US20070213238A1 (en) * 2006-03-13 2007-09-13 Sigworth William D Lubricant composition for cellulosic-thermoplastic composite
JP2009280907A (ja) * 2008-04-22 2009-12-03 Jfe Steel Corp 粉末冶金用鉄基混合粉末
JP2009280908A (ja) * 2008-04-22 2009-12-03 Jfe Steel Corp 粉末冶金用鉄基混合粉末の成形方法
RU2510707C2 (ru) 2008-11-26 2014-04-10 Хеганес Аб (Пабл) Смазка для композиций порошковой металлургии
EP3043935B1 (en) 2013-09-12 2019-02-13 National Research Council of Canada Lubricant for powder metallurgy and metal powder compositions containing said lubricant
CN105566754A (zh) * 2015-12-29 2016-05-11 常州可赛成功塑胶材料有限公司 一种玻璃纤维增强聚丙烯用润滑剂组合物及其成形方法
JP6877375B2 (ja) * 2018-02-21 2021-05-26 Ｊｆｅスチール株式会社 粉末冶金用混合粉
CN108893178A (zh) * 2018-05-31 2018-11-27 湖北昌耀新材料股份有限公司 一种磷石膏混凝土预制构件用脱模剂

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8621094D0 (en) * 1986-09-01 1986-10-08 Ici Plc Loading of polymer additives
US5468401A (en) * 1989-06-16 1995-11-21 Chem-Trend, Incorporated Carrier-free metalworking lubricant and method of making and using same
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
US5154881A (en) * 1992-02-14 1992-10-13 Hoeganaes Corporation Method of making a sintered metal component
US5279640A (en) * 1992-09-22 1994-01-18 Kawasaki Steel Corporation Method of making iron-based powder mixture
JPH06145701A (ja) * 1992-11-04 1994-05-27 Kawasaki Steel Corp 粉末冶金用鉄基粉末混合物及びその製造方法
DE19522475C1 (de) * 1995-06-21 1996-09-26 Byk Chemie Gmbh Verwendung rieselfähiger Additivzubereitungen in Pulverlacken
JPH1046202A (ja) * 1996-08-06 1998-02-17 Nitto Kasei Kogyo Kk 粉末冶金用の粉末潤滑剤

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113710392A (zh) * 2019-04-23 2021-11-26 杰富意钢铁株式会社 粉末冶金用混合粉
CN113710392B (zh) * 2019-04-23 2023-08-08 杰富意钢铁株式会社 粉末冶金用混合粉

Also Published As

Publication number Publication date
ES2254226T3 (es) 2006-06-16
EP1214143B1 (en) 2006-02-15
BR0013913B1 (pt) 2011-03-22
CN1185045C (zh) 2005-01-19
DE60026045T2 (de) 2006-08-10
US6395688B2 (en) 2002-05-28
BR0013913A (pt) 2002-05-14
SE9903245D0 (sv) 1999-09-10
JP4758045B2 (ja) 2011-08-24
CA2382717C (en) 2008-01-29
US20010029808A1 (en) 2001-10-18
MXPA02002564A (es) 2002-07-30
JP2003509581A (ja) 2003-03-11
DE60026045D1 (de) 2006-04-20
TW513484B (en) 2002-12-11
WO2001019508A1 (en) 2001-03-22
AU7465400A (en) 2001-04-17
EP1214143A1 (en) 2002-06-19
CA2382717A1 (en) 2001-03-22

Similar Documents

Publication Publication Date Title
CN1185045C (zh) 润滑剂复合物及其制备方法
EP0673284B1 (en) Method of making lubricated metallurgical powder composition
CN101850423B (zh) 高强自润滑铁铜粉末复合材料及其制备方法
JPH07103404B2 (ja) 焼結金属部材の製造方法及びそのための金属粉末組成物
JP2010265454A (ja) 潤滑剤複合物及びその製造方法
CN100571931C (zh) 用于制造压制产品的方法以及包含润滑剂的铁基粉末
CN104308141A (zh) 粉末冶金用铁基混合粉末
JP4863618B2 (ja) ステンレス鋼粉末の温間圧縮成形のための組成物及び方法
KR20080080304A (ko) 금속 야금학적 분말 조성물
CN100488667C (zh) 绝缘软磁性铁基粉末组合物的润滑剂
JP4578965B2 (ja) 結合用潤滑剤を含有する金属粉末組成物、及びステアリン酸グリセリルを含有する結合用潤滑剤
JP2008503653A5 (ja) 粉末組成物、及び軟磁性部品の製造方法
JP4658602B2 (ja) 圧縮成形品を製造するための混合物
US5926686A (en) Sintered products having improved density
JP3822372B2 (ja) 粉末冶金用粉末の圧縮成形法
KR100865929B1 (ko) 향상된 분말 야금 활제 조성물 및 그 사용방법
WO2019230259A1 (ja) 粉末冶金用粉末混合物およびその製造方法
KR101202371B1 (ko) 유동 강화제로서 탄소 블랙을 포함하는 분말 야금학적 조성물
CN111741824A (zh) 粉末冶金用混合粉
CN105251990A (zh) 一种铁基粉末冶金组合物及其制备方法
JP2019002068A (ja) 粉末冶金用粉末混合物およびその製造方法

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20050119

CX01 Expiry of patent term