WO2006031193A1 - Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant - Google Patents

Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant Download PDF

Info

Publication number
WO2006031193A1
WO2006031193A1 PCT/SE2005/001343 SE2005001343W WO2006031193A1 WO 2006031193 A1 WO2006031193 A1 WO 2006031193A1 SE 2005001343 W SE2005001343 W SE 2005001343W WO 2006031193 A1 WO2006031193 A1 WO 2006031193A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition according
lubricant
amide
powder
iron
Prior art date
Application number
PCT/SE2005/001343
Other languages
English (en)
Inventor
Åsa AHLIN
Maria Ramstedt
Original Assignee
Höganäs 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
Priority claimed from SE0402239A external-priority patent/SE0402239D0/xx
Priority to AT05783351T priority Critical patent/ATE487552T1/de
Priority to BRPI0515368-9A priority patent/BRPI0515368B1/pt
Priority to CN2005800311616A priority patent/CN101022903B/zh
Priority to DE602005024708T priority patent/DE602005024708D1/de
Priority to JP2007532287A priority patent/JP4887296B2/ja
Application filed by Höganäs Ab filed Critical Höganäs Ab
Priority to PL05783351T priority patent/PL1812187T3/pl
Priority to RU2007114275/02A priority patent/RU2351434C2/ru
Priority to EP05783351A priority patent/EP1812187B1/fr
Priority to MX2007003194A priority patent/MX2007003194A/es
Priority to CA2580509A priority patent/CA2580509C/fr
Publication of WO2006031193A1 publication Critical patent/WO2006031193A1/fr

Links

Classifications

    • 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
    • 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
    • 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
    • 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

Definitions

  • Powder metal composition comprising secondary amides as lubricant and/or binder.
  • the present invention concerns a powder metal composition. Specifically the invention concerns a powder metal composition including a lubricant and/or binder comprising at least one secondary amide. The invention further concerns a method of producing a green body, a method of producing a bonded iron-based powder composition and use of the lubricant and/or binder.
  • Metal powders are used in industry for the manufacture of metal products by compacting the metal powder in a die under high pressures, ejecting the compact from the die and optionally sintering the product.
  • a lubricant is comprised in the powder in order to provide the necessary lubrication action between powder particles during compaction and between the die and the compact during ejection from the die.
  • Lubrication achieved by a lubricant included in the metal powder is referred to as internal lubrication in contrast to external lubrication, which is achieved by applying a lubricant to the walls of the die, wherein the powder is compacted.
  • Insufficient lubrication during ejection results in excessive friction between the compact and the die resulting in high ejection energies and damage of die surfaces and product surfaces .
  • lubrication is achieved by using special lubricants. Normally these lubricants are admixed with the iron or iron-based powder in the form of a powder. Some lubricants may also be used for binding additives, such as e.g. alloying elements, to the iron or iron-based particles. In these cases the lubricants thus work as binding agents and reduce or eliminate segregation of the additives during shipping and handling. Commonly used lubricants for PM applications are metal soaps, such as lithium and zinc stearate.
  • a disadvantage with this type of lubricant is that oxides of the metals in the lubricant contaminate the inside of the sintering furnace as a result of release of metals from the lubricant during sintering, another problem is that stains may be formed on the component after sintering.
  • Another commonly used lubricant is ethylene bis stearamide (EBS) . Stains may also be formed on the component after sintering when using this lubricant, but to a lesser extent compared with using e.g. zinc stearate.
  • EBS ethylene bis stearamide
  • Stains may also be formed on the component after sintering when using this lubricant, but to a lesser extent compared with using e.g. zinc stearate.
  • a powder metal composition comprising an iron based powder and a lubricant and/or binder comprising at least one secondary amide.
  • the invention further concerns a method of producing a green body by subjecting the above mentioned composition to compaction.
  • the method of producing a bonded powder metal composition comprises: mixing an iron-based powder with at least one secondary amide and heating the mixture to a temperature above the melting point of the at least one secondary amide.
  • the invention concerns the use of the at least one secondary amide as a lubricating and/or binding agent for iron-based powders, and its use for die wall lubrication.
  • the lubricant and/or binder in the powder metal composition according to the invention is at least one secondary amide that may be defined by the general formula:
  • Ri- and R 2 ⁇ groups which may be the same or different, are straight or branched, saturated or unsaturated aliphatic hydrocarbon groups.
  • Ri and R 2 independently include 10 to 24 carbon atoms .
  • Ri and R 2 are selected from the group con ⁇ sisting of alkyl and alkenyl.
  • the alkyl groups may be chosen from decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl.
  • the alkenyl groups may be chosen from decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl, nonadecenyl, eicosenyl, heneicosenyl, docosenyl, tricosenyl, tetracosenyl.
  • the amount of secondary amides may constitute 0.05- 2.0 % by weight of the powder metal composition, preferably 0.05-1.0% by weight.
  • One embodiment of the invention concerns a powder metal composition
  • a powder metal composition comprising a lubricant and/or binder further comprising at least one primary amide in addition to the at least one secondary amide.
  • the at least one primary amide is preferably a saturated or unsaturated fatty acid amide having 12-24, preferably 14-22 C-atoms and most preferably 16-22 C-atoms.
  • Especially preferred primary amides are stearic acid amide (stearamide) , behenic acid amide (behenamide) , eurcic acid amide (erucamide) , palmitic acid amide (palmitamide) and arachidic acid amide (arachidamide) .
  • the primary and secondary amides according to the invention are either commercially obtainable or may be produced from commercially obtainable material by the use of processes well known in the art.
  • the amount of primary and secondary amides may constitute a total of 0.05-2.0 % by weight of the powder metal composition, preferably 0.05-1.0% by weight.
  • the amount of the at least one primary amide may be 0.05-1.0% by weight and the amount of the at least one secondary amide may be 0.05-1.0% by weight for the embodiment of the invention comprising both types of amides .
  • the lubricant and/or binder may be added to the powder metal composition in the form of solid particles of each amide.
  • the average particle size may vary, but is preferably less than 150 ⁇ m.
  • the lubricant and/or binder may be added to the powder metal composition as a molten and subsequently solidified particulate mixture of the amides. This may be accomplished by mixing the amides in a predetermined ratio, the mixture is then melted, cooled and subsequently milled to a lubricant powder.
  • the at least one secondary amide according to the invention may be used as a binder for obtaining a bonded mixture, wherein optional alloying elements and the at least one secondary amide are bonded to the iron-based powder. This may be achieved by mixing an iron-based powder with at least one secondary amide according to the invention, and heating the mixture to a temperature above the melting point of the at least one secondary amide. At least one primary amide may further be mixed into the above mentioned mixture and the heating temperature may then be lower than the melting point of the primary amide.
  • the powder metal composition according to the invention may, if so desired, contain other lubricants, such as zinc stearate, lithium stearate, EBS etc.
  • bonding systems such as alkydes, cellulose ester resins, hydroxyalkyl cellulose resins having 1-4 carbon atoms in the alkyl group, or thermoplastic phenolic resins.
  • iron-based powder encompasses powder essentially made up of pure iron, iron powder that has been pre-alloyed with other elements improving the strength, the hardening properties, the electromagnetic properties or other desirable properties of the end products and particles of iron mixed with particles of such alloying elements (diffusion annealed mixture or purely mechanical mixture) .
  • alloying elements are copper, molybdenum, chromium, manganese, phosphorous, carbon in the form of graphite, nickel, silicon, boron, vanadium, titanium, aluminium, cobalt and tungsten, which are used either separately or in combination, e.g. in the form of compounds (Fe 3 P and FeMo) .
  • the iron based powders may be used for the preparation of soft magnetic parts and may, for this application, be electrically insulated. Electrical insulation of the powder particles may be made of an inorganic material. Especially suitable are the type of insulation disclosed in the US 6348265, which concerns particles of a base powder consisting of essentially pure iron having an insulating oxygen- and phosphorus-contai ⁇ ning barrier. Insulated powder particles are available as SomaloyTM 500 and 550 from Hoganas AB, Sweden.
  • the powder metal composition according to the invention may contain one or more additives selected from the group consisting of processing aids and hard phases.
  • the processing aids used in the powder metal composition may consist of talc, forsterite, manganese sulphide, sulphur, molybdenum disulphide, boron nitride, tellurium, selenium, barium difluoride and calcium difluoride, which are used either separately or in combination.
  • the hard phases used in the powder metal composition may consist of carbides of tungsten, vanadium, molyb ⁇ denum, chromium, AI 2 O 3 , B 4 C and various ceramic materials.
  • the invention further concerns a method of producing a green body comprising: compacting the powder metal composition according to the invention to a compacted body, wherein the composition comprises an iron based powder and a lubricant and/or binder comprising at least one secondary amide having the general formula:
  • Ri-NH-CO-R2 wherein Ri and R 2 are the same or different, straight or branched, saturated or unsaturated aliphatic hydrocarbon groups.
  • the compacted body may be sintered or heat-treated. With the aid of conventional techniques, the iron- based powder, the lubricant and/or binder and optional additives may be mixed to a substantially homogeneous powder composition before the compaction step.
  • the powder metal composition and/or the die may be preheated before the compaction.
  • the invention further concerns the use of at least one secondary amide, defined as above, as a lubricating and/or binding agent for iron or iron based powders .
  • a further embodiment of the invention concerns the use of at least one secondary amide, defined as above, as a die wall lubricant.
  • FIG. 1 shows stain formation of components after sintering due to the use of different lubricants.
  • EBS Ethylene bisstearamide
  • This example demonstrates the lubrication properties of different secondary amides and different combinations of secondary and primary amides, which are added as a powder in iron-based powder mixes .
  • Base powder ASC 100.29 (available from Hoganas AB, Sweden) was mixed with 0.5% by weight of graphite (uf-4 from Kropfmuhl) and 0.8% by weight of lubricants, according to Table 3 and 4, in a L ⁇ dige mixer for 2 minutes.
  • Ethylene bisstearamide (EBS, available as Licowax TM from Clariant, Germany) was used as a reference.
  • the lubricants had a particle size less than 150 ⁇ m.
  • Compositions comprising both a secondary and a primary amide contained 50% of each amide (0.8% by weight of the total composition) .
  • the base powder ASC 100.29 was mixed with 2% by weight of Copper (-lOO ⁇ m) , 0.8% by weight graphite and 0.8% by weight of lubricants (a) EBS or b) oleyl palmitamide) in a L ⁇ dige mixer for 2 minutes .
  • the lubricants had a particle size less than 150 ⁇ m.
  • cylindrical components with a diameter of 64 mm and a height of 32 mm were compacted to a green density of 7.1 g/cm 3 at ambient temperature.
  • the weight of one cylinder was 700 g.
  • the components were sintered in an atmosphere containing 90/10 N 2 /H 2 at 1120 0 C for 15 minutes.
  • This example demonstrates the lubrication properties of different combinations of secondary and primary amides, which have been melted together, cooled and milled before being mixed with iron-based powder mixes .
  • the lubricant combinations were made according to following method: The mixed lubricants, 50% primary and
  • the base powder ASClOO.29 was mixed with 0.5 % by weight of graphite and 0.8 % by weight of lubricant combination (see Table 5), in a L ⁇ dige mixer for 2 minutes.
  • rings with inner diameter of 45 mm, outer diameter 55 mm and a height 10 mm were compacted at three different compaction pressures, 400, 600 and 800 MPa at ambient temperature.
  • the resulting ejection energies and densities are shown in Table 5.
  • Table 5 Densities and ejection energies (secondary + primary amides and reference) .
  • This example demonstrates the lubricating and binding properties of different combinations of amides in powder metal compositions.
  • the lubricants had a particle size less than 150 ⁇ m.
  • the base powder ASClOO.29 was mixed with 2% by weight Cu-100, 0.8 % by weight of graphite and 0,8 % by weight of lubricant/binder combination according to Table 6, in a Lodige mixer for 2 minutes.
  • the mixture with EBS was kept as reference while the mixtures comprising amides were heated to a temperature above the melting point of the secondary amide but below the melting point of the primary amide during mixing in another mixer followed by cooling to accomplish bonding of the additives to the iron powder.
  • the secondary amide will thus act as a binder and the primary amide will act as a lubricant.
  • the melting temperatures of the amides are disclosed in Table 7.
  • the ejection energy was measured on rings having an outer diameter of 55 mm and an inner diameter of 45 mm and a height of 10 mm compacted at three different compaction pressures, 400, 600 and 800 MPa at ambient temperature.
  • the resulting ejection energies and green densities are shown in Table 8.
  • Samples produced with the aid of the lubricant/binder according to the invention show lower ejection energies compared to samples produced with the lubricant used as reference, i.e. EBS.
  • Use of the powder composition comprising the lubricant/binder according to the invention resulted in compacted sintered parts (sintered in 90/10 N 2 /H 2 at 112O 0 C for 30 minutes) with excellent surface finishes, i.e. essentially without scratches and no stain formation.
  • Example 5 A coarse soft magnetic iron-based powder, wherein the particles are surrounded by an inorganic insulation was mixed with secondary amide lubricant according to Table 9.
  • secondary amide lubricant As reference lubricants the known substances Zinc- stearate and EBS were used.
  • the particle size distribution of the used iron-based powder is disclosed in Table 10.
  • the obtained mixes were transferred to a die and compacted into cylindrical test samples (50 g) having a diameter of 25 mm, in an uniaxial press movement at a compaction pressure of 1100 MPa.
  • the die material used was conventional tool steel. During ejection of the com ⁇ pacted samples the ejection force was recorded. The total ejection energy/enveloping area needed in order to eject the samples from the die was calculated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Powder Metallurgy (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une composition de poudre métallique comprenant une poudre à base de fer et un lubrifiant et/ou liant comprenant au moins un amide secondaire représenté par la formule générale : R1-NH-CO-R2, dans laquelle R1 et R2 sont des groupes hydrocarbonés aliphatiques, saturés ou insaturés, linéaires ou ramifiés, identiques ou différents. L'invention concerne également un procédé de fabrication d'ébauches crues constituées de la composition de poudre métallique selon l'invention, un procédé de production d'une composition de poudre à base de fer, ainsi que l'utilisation du ou des amides secondaires en tant qu'agent lubrifiant et/ou liant pour des poudres à base de fer et l'utilisation en tant que lubrifiant de paroi de moule.
PCT/SE2005/001343 2004-09-17 2005-09-16 Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant WO2006031193A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CA2580509A CA2580509C (fr) 2004-09-17 2005-09-16 Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant
BRPI0515368-9A BRPI0515368B1 (pt) 2004-09-17 2005-09-16 Composição de metal em pó, método de produção de um corpo cru e método de produção de uma composição em pó à base de ferro aglutinada
CN2005800311616A CN101022903B (zh) 2004-09-17 2005-09-16 包含仲酰胺作为润滑剂和/或粘结剂的粉末金属组合物
DE602005024708T DE602005024708D1 (de) 2004-09-17 2005-09-16 Sekundäre amide als schmiermittel und/oder bindemi
JP2007532287A JP4887296B2 (ja) 2004-09-17 2005-09-16 潤滑剤及び／又は結合剤として第二級アミドを含む粉末金属組成物、その使用方法、及び素地を製造する方法
AT05783351T ATE487552T1 (de) 2004-09-17 2005-09-16 Sekundäre amide als schmiermittel und/oder bindemittel umfassende pulvermetallzusammensetzung
PL05783351T PL1812187T3 (pl) 2004-09-17 2005-09-16 Mieszanka proszków metalicznych zawierająca amidy drugorzędowe pełniące rolę środka poślizgowego i/lub spoiwa
RU2007114275/02A RU2351434C2 (ru) 2004-09-17 2005-09-16 Порошковая металлическая композиция, содержащая вторичные амиды в качестве смазочного материала и/или связующего вещества
EP05783351A EP1812187B1 (fr) 2004-09-17 2005-09-16 Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant
MX2007003194A MX2007003194A (es) 2004-09-17 2005-09-16 Composiciones de metal en polvo que comprende amidas secundarias como lubricante y/o aglutinante.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0402239A SE0402239D0 (sv) 2004-09-17 2004-09-17 Powder metal composition comprising a lubricant, method for making compacted products using the lubricant, and use of the same
SE0402239-8 2004-09-17
SE0500072 2005-01-12
SE0500072-4 2005-01-12

Publications (1)

Publication Number Publication Date
WO2006031193A1 true WO2006031193A1 (fr) 2006-03-23

Family

ID=36060316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2005/001343 WO2006031193A1 (fr) 2004-09-17 2005-09-16 Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant

Country Status (12)

Country Link
EP (1) EP1812187B1 (fr)
JP (1) JP4887296B2 (fr)
KR (1) KR100862785B1 (fr)
CN (1) CN101022903B (fr)
AT (1) ATE487552T1 (fr)
BR (1) BRPI0515368B1 (fr)
CA (1) CA2580509C (fr)
DE (1) DE602005024708D1 (fr)
MX (1) MX2007003194A (fr)
PL (1) PL1812187T3 (fr)
RU (1) RU2351434C2 (fr)
WO (1) WO2006031193A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105642886A (zh) * 2014-11-27 2016-06-08 现代自动车株式会社 粉末冶金方法
US10030209B2 (en) 2013-09-12 2018-07-24 National Research Council Of Canada Lubricant for powder metallurgy and metal powder compositions containing said lubricant
EP4105301A1 (fr) * 2021-06-15 2022-12-21 Basf Se Nouveaux paquets d'additifs pour l'essence

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010285633A (ja) * 2009-06-09 2010-12-24 Kobe Steel Ltd 粉末冶金用混合粉末の製造方法、及び焼結体の製造方法
CN103014502A (zh) * 2012-11-22 2013-04-03 宁波市群星粉末冶金有限公司 汽油发动机活塞粉末冶金材料及制备方法
CN105176636A (zh) * 2014-01-14 2015-12-23 莱芜市冠隆纳米科技有限公司 一种超级润滑剂及其制备方法
GB201409250D0 (en) * 2014-05-23 2014-07-09 H Gan S Ab Publ New product
EP3321002A1 (fr) * 2016-11-15 2018-05-16 Höganäs AB Charge d'alimentation d'un procédé de fabrication additive, procédé de fabrication additive l'utilisant, et article ainsi obtenu
US11224914B2 (en) 2017-06-16 2022-01-18 Jfe Steel Corporation Powder mixture for powder metallurgy and method of manufacturing same
JP6648779B2 (ja) * 2017-06-16 2020-02-14 Ｊｆｅスチール株式会社 粉末冶金用粉末混合物およびその製造方法
RU2645806C1 (ru) * 2017-06-19 2018-02-28 Юлия Алексеевна Щепочкина Спеченный антифрикционный материал на основе железа
KR20190128427A (ko) 2018-05-08 2019-11-18 현대자동차주식회사 분말 야금 방법
WO2022259547A1 (fr) * 2021-06-11 2022-12-15 昭和電工マテリアルズ株式会社 Agent lubrifiant, combinaison d'agents lubrifiants, mélange de poudres, combinaison de matières de départ pour mélange de poudres, et procédé de fabrication de corps fritté

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018275A1 (fr) * 1991-04-18 1992-10-29 Höganäs Ab Melange pulverulent et methode de production
EP0589088A1 (fr) * 1992-09-25 1994-03-30 Kawasaki Steel Corporation Mélange de poudre à base de fer et son procédé de préparation
WO1996025261A1 (fr) * 1995-02-14 1996-08-22 Komatsu Ltd. Liant destine au moulage par injection de poudre metallique et methode d'elimination du liant apres utilisation
WO1997043066A1 (fr) * 1996-05-13 1997-11-20 The Presmet Corporation Procede de preparation de materiaux ferreux a hautes performances

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256185A (en) * 1992-07-17 1993-10-26 Hoeganaes Corporation Method for preparing binder-treated metallurgical powders containing an organic lubricant
US5627258A (en) * 1994-03-14 1997-05-06 Kabushiki Kaisha Komatsu Seisakusho Binder for use in metal powder injection molding and debinding method by the use of the same
JP3509408B2 (ja) * 1995-08-04 2004-03-22 Ｊｆｅスチール株式会社 流動性および成形性に優れた粉末冶金用鉄基粉末混合物およびその製造方法
JPH10219303A (ja) * 1997-02-07 1998-08-18 Sumitomo Metal Mining Co Ltd 無機物粉末射出成形用組成物および焼結体
JP3445112B2 (ja) * 1997-09-25 2003-09-08 日立粉末冶金株式会社 粉末冶金における粉末成形方法，成形用金型および押型の潤滑方法
JP2000114018A (ja) * 1998-09-30 2000-04-21 Nichia Chem Ind Ltd ボンド磁石用組成物
JP3882490B2 (ja) * 2000-10-13 2007-02-14 住友金属鉱山株式会社 高耐候性磁石粉の製造方法及び得られる製品
JP4135447B2 (ja) * 2002-09-17 2008-08-20 住友金属鉱山株式会社 高耐候性磁石粉、ボンド磁石用樹脂組成物及びそれを用いて得られるボンド磁石
US7789934B2 (en) * 2004-01-20 2010-09-07 Kabushiki Kaisha Kobe Seiko Sho Lubricant for powder metallurgy, powdery mixture for powder metallurgy, and process for producing sinter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018275A1 (fr) * 1991-04-18 1992-10-29 Höganäs Ab Melange pulverulent et methode de production
EP0589088A1 (fr) * 1992-09-25 1994-03-30 Kawasaki Steel Corporation Mélange de poudre à base de fer et son procédé de préparation
WO1996025261A1 (fr) * 1995-02-14 1996-08-22 Komatsu Ltd. Liant destine au moulage par injection de poudre metallique et methode d'elimination du liant apres utilisation
WO1997043066A1 (fr) * 1996-05-13 1997-11-20 The Presmet Corporation Procede de preparation de materiaux ferreux a hautes performances

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10030209B2 (en) 2013-09-12 2018-07-24 National Research Council Of Canada Lubricant for powder metallurgy and metal powder compositions containing said lubricant
US10975326B2 (en) 2013-09-12 2021-04-13 National Research Council Of Canada Lubricant for powder metallurgy and metal powder compositions containing said lubricant
CN105642886A (zh) * 2014-11-27 2016-06-08 现代自动车株式会社 粉末冶金方法
EP4105301A1 (fr) * 2021-06-15 2022-12-21 Basf Se Nouveaux paquets d'additifs pour l'essence
WO2022263254A1 (fr) * 2021-06-15 2022-12-22 Basf Se Nouveaux ensembles d'additifs d'essence

Also Published As

Publication number Publication date
CA2580509C (fr) 2010-11-16
BRPI0515368A (pt) 2008-07-22
EP1812187A1 (fr) 2007-08-01
KR100862785B1 (ko) 2008-10-13
RU2007114275A (ru) 2008-10-27
EP1812187B1 (fr) 2010-11-10
CN101022903A (zh) 2007-08-22
CN101022903B (zh) 2010-11-10
DE602005024708D1 (de) 2010-12-23
PL1812187T3 (pl) 2011-04-29
BRPI0515368B1 (pt) 2014-07-29
JP4887296B2 (ja) 2012-02-29
CA2580509A1 (fr) 2006-03-23
JP2008513602A (ja) 2008-05-01
RU2351434C2 (ru) 2009-04-10
MX2007003194A (es) 2007-05-16
KR20070046958A (ko) 2007-05-03
ATE487552T1 (de) 2010-11-15

Similar Documents

Publication Publication Date Title
CA2580509C (fr) Composition de poudre metallique comprenant des amides secondaires en tant que lubrifiant et/ou liant
US8734561B2 (en) Iron based powder composition
EP2370220B1 (fr) Lubrifiant pour compositions métallurgiques de poudre
KR20070027758A (ko) 유동 강화제로서 탄소 블랙을 포함하는 분말 야금학적조성물
EP1976652A1 (fr) Lubrifiant pour préparations métallurgiques en poudre
WO2005102566A1 (fr) Lubrifiants pour compositions metallurgiques de poudre
US7416578B2 (en) Powder metal composition
TW513484B (en) Lubricant composite and process for the preparation thereof
EP1513638B1 (fr) Composition de poudre metallique contenant un lubrifiant de liaison et lubrifiant de liaison renfermant un monostearate de gylceryle.
BRPI0620894A2 (pt) composição de pó metalúrgico e método para a produção de composição de pó metalúrgico
CA2589075C (fr) Lubrifiants pour metaux pulverulents et compositions metalliques pulverulentes contenant ces lubrifiants
BRPI0620868A2 (pt) composição de pó metalúrgico
CA2248447C (fr) Lubrifiants a base d'acide borique pour metaux en poudre et compositions metalliques frittees a base de tels lubrifiants
PL207923B1 (pl) Kompozycja proszkowa na osnowie żelaza i sposób wytwarzania surowych prasówek o dużej gęstości
ES2356177T3 (es) Composición de metal en polvo que comprende amidas secundarias como lubricante y/o aglutinante.
EP1387730A1 (fr) Composition de poudre de fer contenant un lubrifiant de type amide et procede pour preparer cette composition
KR20090104140A (ko) 유동 강화제로서 탄소 블랙을 포함하는 분말 야금학적 조성물
WO2024053141A1 (fr) Poudre mélangée pour métallurgie des poudres
KR20050016530A (ko) 글리세릴 스테아르산염을 포함하는 결합 윤활제 및 결합윤활제를 포함하는 금속 분말 조성물

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2005783351

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2580509

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: MX/a/2007/003194

Country of ref document: MX

Ref document number: 2007532287

Country of ref document: JP

Ref document number: 200580031161.6

Country of ref document: CN

Ref document number: 1133/CHENP/2007

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1020077007022

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2007114275

Country of ref document: RU

WWP Wipo information: published in national office

Ref document number: 2005783351

Country of ref document: EP

ENP Entry into the national phase

Ref document number: PI0515368

Country of ref document: BR