CA2505381A1 - Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation - Google Patents

Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation Download PDF

Info

Publication number
CA2505381A1
CA2505381A1 CA002505381A CA2505381A CA2505381A1 CA 2505381 A1 CA2505381 A1 CA 2505381A1 CA 002505381 A CA002505381 A CA 002505381A CA 2505381 A CA2505381 A CA 2505381A CA 2505381 A1 CA2505381 A1 CA 2505381A1
Authority
CA
Canada
Prior art keywords
composition according
group
iron
compound
soft magnetic
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
CA002505381A
Other languages
French (fr)
Other versions
CA2505381C (en
Inventor
Mikhail Kejzelman
Bjorn Skarman
Paul Skoglund
Ola Andersson
Per Knutsson
Hilmar Vidarsson
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
Individual
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 Individual filed Critical Individual
Publication of CA2505381A1 publication Critical patent/CA2505381A1/en
Application granted granted Critical
Publication of CA2505381C publication Critical patent/CA2505381C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H01F1/14733—Fe-Ni based alloys in the form of particles
    • H01F1/14741—Fe-Ni based alloys in the form of particles pressed, sintered or bonded together
    • H01F1/1475—Fe-Ni based alloys in the form of particles pressed, sintered or bonded together the particles being insulated
    • 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
    • B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
    • 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
    • B22F1/16—Metallic particles coated with a non-metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Abstract

The present invention concerns a new ferromagnetic powder composition comprising soft magnetic iron-based core particles wherein the surface of the core particles are surrounded by an insulating coating, and a lubricating amount of a compound selected from the group consisting of silanes, titanates, aluminates, zirconates, or mixtures thereof. The invention also concerns a process for the preparation of soft magnetic composite materials using the new powder composition.

Claims (23)

1. A ferromagnetic powder composition comprising soft magnetic iron-based core particles wherein the surface of the core particles are surrounded by an insulating inorganic coating, and a lubricating amount of a compound selected from the group consisting of silanes, titanates, aluminates, zirconates, or mixtures thereof.
2. A composition according to claim 1 wherein the compound has at least one hydrolysable group and at least one lubricating organic moiety.
3. A composition according to claim 1 or 2 wherein the compound is present as a lubricating layer on the insulated particles.
4. A composition according to any one of the claims 1-3, wherein the compound has the following general formula:

M(R1)n(R2)m, wherein M is a central atom selected from Si, Ti, Al, or Zr, R1 is a hydrolysable group, R2 is a group consisting of a lubricating organic moiety, wherein the sum of m+n is the coordination number of the central atom;
n is an integer >=1 and m is an integer >=1.
5. A composition according to claim 4, wherein R1 is an alkoxy group having less than 12, preferably less than 6 and most preferably less than 3 carbon atoms
6. A composition according to claim 4, wherein R1 is a chelate group.
7. A composition according to claim 6, wherein the chelate group is a residue of hydroxyacetic acid (-O (O=C) -CH2O-) or a residue of ethylene glycol (-OCH2CH2O-
8. A composition according to any of claims 4-7, wherein R2 is an organic group including between 6-30, preferably 10-24 carbon atoms, and optionally including one or more hetero atoms selected from the group consisting of N, O, S and P.
9. A composition according to claim 8, wherein the R2 group is linear, branched, cyclic, or aromatic.
10. A composition according to any of claims 8-9, wherein the R2 group is a chain selected from the group consisting of alkyl, ether, ester, phospho-alkyl, phospho-lipid, or phospho-amine.
11. A composition according to claim 10, wherein the R2 is selected from the group consisting of phosphato, pyrophosphato or phosphito.
12. A composition according to any one of the claims 1-10, wherein the compound is selected from the group consisting of alkyl-alkoxy silanes and polyether-alkoxy silanes.
13. A composition according to any one of the preceding claims, wherein the compound is selected from the group consisting of octyl-trimethoxy silane, hexadecyl-trimethoxy silane, polyethyleneether-trimethoxy silane, isopropyl-triisostearyl titanate, isopropyl-tri(dioctyl)phosphato titanate, neopentyl(diallyl)oxy-trineodecanoyl zirconate, neopentyl(diallyl)oxy-tri(dioctyl)phosphato zirconate, and diisobutyl-acetoacetyl aluminate.
14. A composition according to any one of claims 1-13, wherein the insulating inorganic coating of the iron-based particles is phosphorous based.
15. A composition according to any of claims 1-14, wherein the iron-based core particles consist of essentially pure iron.
16. A composition according to any of the claims 1-15 wherein less the 5% of the iron-based core particles have a size below 45 µm.
17. A composition according to any one of the claims 1-16, wherein at least 40o and preferably at least 60% of the iron-based core particles consist of particles having a particle size above about 106 µm.
18. A powder composition according to any one of the claims 1-17 wherein at least 200, preferably at least 400, and most preferably at least 600 of the iron-based core particles consist of particles having a particle size above about 212 µm.
19 .A composition comprising a compound according to any one of the claims 1-18, wherein the amount of the compound is present in an amount of 0.05-0.5%, preferably 0.07-0.45%, and most preferably 0.08-0.4% by weight.
20. A composition according to any of claims 1-19, which is optionally mixed with additives, such as particular lubricants, binders or flow-enhancing agents.
21. Process for the preparation of soft magnetic composite materials having a density of at least 7.45 g/cm3 comprising the steps of - providing an iron or iron-based powder composition according to any one of the claims 1-20;
- uniaxially compacting the obtained soft magnetic powder composition in a die at a compaction pres-sure of at least about 800 MPa; and - ejecting the green body from the compaction tool;
and - optionally heat-treating the compacted body.
22. Process according to claim 21, wherein the compaction is performed at a pressure of at least about 900 MPa, more preferably at least 1000 MPa, and most preferably above 1100 MPa.
23. Process according to claim 21 or 22, wherein the par-title size of the iron core powder is as defined in any one of the claims 16-18.
CA2505381A 2002-12-23 2003-12-22 Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation Expired - Fee Related CA2505381C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0203851A SE0203851D0 (en) 2002-12-23 2002-12-23 Iron-Based Powder
SE0203851-1 2002-12-23
PCT/SE2003/002067 WO2004056508A1 (en) 2002-12-23 2003-12-22 Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation

Publications (2)

Publication Number Publication Date
CA2505381A1 true CA2505381A1 (en) 2004-07-08
CA2505381C CA2505381C (en) 2011-12-13

Family

ID=20290000

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2505381A Expired - Fee Related CA2505381C (en) 2002-12-23 2003-12-22 Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation

Country Status (17)

Country Link
EP (1) EP1575726B1 (en)
JP (2) JP4886987B2 (en)
KR (1) KR101035757B1 (en)
CN (1) CN100548541C (en)
AT (1) ATE473064T1 (en)
AU (1) AU2003288880B8 (en)
BR (1) BR0317661A (en)
CA (1) CA2505381C (en)
DE (1) DE60333309D1 (en)
ES (1) ES2348212T3 (en)
MX (1) MXPA05006847A (en)
PL (1) PL209529B1 (en)
RU (1) RU2335817C2 (en)
SE (1) SE0203851D0 (en)
TW (1) TWI229018B (en)
WO (1) WO2004056508A1 (en)
ZA (1) ZA200503597B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210183548A1 (en) * 2019-12-12 2021-06-17 Murata Manufacturing Co., Ltd. Soft magnetic material and green compact

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0203851D0 (en) * 2002-12-23 2002-12-23 Hoeganaes Ab Iron-Based Powder
JP5306240B2 (en) * 2007-03-21 2013-10-02 ホガナス アクチボラグ （パブル） Metal powder polymer composite material
MX2010010205A (en) * 2008-03-20 2010-12-02 Hoeganaes Ab Publ Ferromagnetic powder composition and method for its production.
JP5482097B2 (en) * 2009-10-26 2014-04-23 Ｔｄｋ株式会社 Soft magnetic material, dust core and method for manufacturing the same
EP2537165A1 (en) * 2010-02-18 2012-12-26 Höganäs AB Ferromagnetic powder composition and method for its production
AT12021U1 (en) * 2010-04-14 2011-09-15 Plansee Se COATING SOURCE AND METHOD FOR THE PRODUCTION THEREOF
CN101982856B (en) * 2010-09-21 2012-02-15 李延军 Soft magnetic core used in penholder type automobile ignition coil and manufacturing method thereof
CN102136330A (en) * 2011-04-01 2011-07-27 钢铁研究总院 Composite soft magnetic material and preparation method thereof
EP2509081A1 (en) * 2011-04-07 2012-10-10 Höganäs AB New composition and method
CN102896315B (en) * 2012-09-15 2015-04-01 安徽省怀远县尚冠模具科技有限公司 Method for manufacturing top board of die
CN102909373A (en) * 2012-09-15 2013-02-06 安徽省怀远县尚冠模具科技有限公司 Method for preparing mould punching ejector rod
JP2014196554A (en) * 2013-03-08 2014-10-16 Ntn株式会社 Powder for magnetic core, dust magnetic core and method of producing the powder for magnetic core and the dust magnetic core
KR102297746B1 (en) * 2013-06-03 2021-09-06 가부시키가이샤 다무라 세이사쿠쇼 Soft magnetic powder, core, low noise reactor and method for manufacturing core
CN105108166B (en) * 2015-09-29 2017-06-06 四川有色金源粉冶材料有限公司 A kind of preparation method of injection moulding iron(-)base powder
CN105149601A (en) * 2015-09-29 2015-12-16 四川有色金源粉冶材料有限公司 Manufacturing method for high-gravity alloy feed
JP7322846B2 (en) * 2019-12-12 2023-08-08 株式会社村田製作所 Soft magnetic materials and powder compacts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947301A (en) * 1982-09-08 1984-03-17 Fuji Photo Film Co Ltd Ferromagnetic metallic powder
JPH0611008B2 (en) * 1983-11-16 1994-02-09 株式会社東芝 Dust core
DE3668722D1 (en) * 1985-06-26 1990-03-08 Toshiba Kawasaki Kk MAGNETIC CORE AND PRODUCTION METHOD.
US4985273A (en) * 1988-06-07 1991-01-15 Matsushita Electric Industrial Co., Ltd. Method of producing fine inorganic particles
EP1133780B1 (en) * 1999-09-28 2003-05-02 NEC TOKIN Corporation Composite magnetic sheet and method of producing the same
JP2002015912A (en) * 2000-06-30 2002-01-18 Tdk Corp Dust core powder and dust core
SE0203851D0 (en) * 2002-12-23 2002-12-23 Hoeganaes Ab Iron-Based Powder
US20060096406A1 (en) * 2004-11-08 2006-05-11 Yao-Huang Liu Gear lever having a light emitting effect

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210183548A1 (en) * 2019-12-12 2021-06-17 Murata Manufacturing Co., Ltd. Soft magnetic material and green compact
US11948714B2 (en) * 2019-12-12 2024-04-02 Murata Manufacturing Co., Ltd. Soft magnetic material and green compact

Also Published As

Publication number Publication date
PL376102A1 (en) 2005-12-12
AU2003288880B8 (en) 2006-11-16
DE60333309D1 (en) 2010-08-19
RU2335817C2 (en) 2008-10-10
KR101035757B1 (en) 2011-05-20
EP1575726A1 (en) 2005-09-21
ES2348212T3 (en) 2010-12-01
CN1732059A (en) 2006-02-08
JP2006511711A (en) 2006-04-06
ZA200503597B (en) 2006-08-30
ATE473064T1 (en) 2010-07-15
CN100548541C (en) 2009-10-14
CA2505381C (en) 2011-12-13
JP2010251779A (en) 2010-11-04
TW200422122A (en) 2004-11-01
TWI229018B (en) 2005-03-11
BR0317661A (en) 2005-12-06
JP4886987B2 (en) 2012-02-29
KR20050085871A (en) 2005-08-29
RU2005123385A (en) 2006-03-27
EP1575726B1 (en) 2010-07-07
AU2003288880A1 (en) 2004-07-14
MXPA05006847A (en) 2005-08-16
AU2003288880B2 (en) 2006-10-12
SE0203851D0 (en) 2002-12-23
PL209529B1 (en) 2011-09-30
WO2004056508A1 (en) 2004-07-08

Similar Documents

Publication Publication Date Title
CA2505381A1 (en) Soft magnetic powder composition comprising insulated particles and a lubricant selected from organo-silanes, -titanates, -aluminates and zirconates and a process for their preparation
CA2832005C (en) New composite iron-based powder composition, powder component and manufacturing method thereof
RU2510993C2 (en) Powdered ferromagnetic composition and method for production thereof
US7153594B2 (en) Iron-based powder
JP5734984B2 (en) Ferromagnetic powder composition and method for producing the same
WO2015091762A1 (en) Soft magnetic composite powder and component

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20161222