SE8201678L - SET TO MAKE FORMS OF SOFT MAGNETIC MATERIAL - Google Patents
SET TO MAKE FORMS OF SOFT MAGNETIC MATERIALInfo
- Publication number
- SE8201678L SE8201678L SE8201678A SE8201678A SE8201678L SE 8201678 L SE8201678 L SE 8201678L SE 8201678 A SE8201678 A SE 8201678A SE 8201678 A SE8201678 A SE 8201678A SE 8201678 L SE8201678 L SE 8201678L
- Authority
- SE
- Sweden
- Prior art keywords
- grains
- iron
- oxide
- magnetic material
- coating
- Prior art date
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
- H01F1/20—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
-
- 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
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- 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
- H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
Abstract
A method for manufacturing an object of soft-magnetic material by bonding together a mass of powder grains of iron-based soft-magnetic material in the form of pure iron or in the form of iron containing silicon, aluminium and/or titanium. The grains are provided either with a coating (2) containing iron oxide chemically bonded to the grains and, at least in those cases where the iron-based material consists of pure iron, containing in addition thereto an oxide of silicon, aluminium and/or titanium, or the grains are provided with a coating (2) containing a reaction product of iron oxide, which oxide is chemically bonded to the grains, and an oxide of silicon, aluminium and/or titanium. The grains provided with said coating are subjected to an isostatic pressing at a temperature of at most 900 DEG C and at a pressure necessary for forming a coherent, compact body of the powder mass. The coating preferably has a thickness of 0.01 - 0.5 mu m.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8201678A SE8201678L (en) | 1982-03-17 | 1982-03-17 | SET TO MAKE FORMS OF SOFT MAGNETIC MATERIAL |
EP83102285A EP0088992A3 (en) | 1982-03-17 | 1983-03-09 | Method for manufacturing an object of soft-magnetic material by bonding together a mass of powder grains |
JP58043028A JPS58171501A (en) | 1982-03-17 | 1983-03-15 | Manufacture of soft magnetic article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8201678A SE8201678L (en) | 1982-03-17 | 1982-03-17 | SET TO MAKE FORMS OF SOFT MAGNETIC MATERIAL |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8201678L true SE8201678L (en) | 1983-09-18 |
Family
ID=20346286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8201678A SE8201678L (en) | 1982-03-17 | 1982-03-17 | SET TO MAKE FORMS OF SOFT MAGNETIC MATERIAL |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0088992A3 (en) |
JP (1) | JPS58171501A (en) |
SE (1) | SE8201678L (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0611008B2 (en) * | 1983-11-16 | 1994-02-09 | 株式会社東芝 | Dust core |
JPS61124038A (en) * | 1984-11-20 | 1986-06-11 | Toshiba Corp | Deflection yoke for electromagnetic deflection type cathode ray tube and manufacture thereof |
EP0205786B1 (en) * | 1985-06-26 | 1990-01-31 | Kabushiki Kaisha Toshiba | Magnetic core and preparation thereof |
DE69014210T2 (en) * | 1989-01-10 | 1995-06-22 | Matsushita Electric Ind Co Ltd | Magnetic head and manufacturing process. |
JPH0682577B2 (en) * | 1989-01-18 | 1994-10-19 | 新日本製鐵株式会社 | Fe-Si alloy dust core and method of manufacturing the same |
JPH0779101B2 (en) * | 1989-05-24 | 1995-08-23 | 株式会社東芝 | Manufacturing method of semiconductor device |
DE69028360T2 (en) * | 1989-06-09 | 1997-01-23 | Matsushita Electric Ind Co Ltd | Composite material and process for its manufacture |
JPH0312809A (en) * | 1989-06-09 | 1991-01-21 | Matsushita Electric Ind Co Ltd | Nanocomposite substrate |
DE69031250T2 (en) * | 1989-06-09 | 1997-12-04 | Matsushita Electric Ind Co Ltd | Magnetic material |
JPH04226003A (en) * | 1990-05-09 | 1992-08-14 | Tdk Corp | Composite soft magnetic material and coated particles for composite soft magnetic material |
JPH05109520A (en) * | 1991-08-19 | 1993-04-30 | Tdk Corp | Composite soft magnetic material |
DE69703572T2 (en) * | 1996-09-25 | 2001-05-31 | Shoei Chemical Ind Co | Nickel powder and process of its manufacture |
JP3206496B2 (en) * | 1997-06-02 | 2001-09-10 | 昭栄化学工業株式会社 | Metal powder and method for producing the same |
US6102980A (en) * | 1997-03-31 | 2000-08-15 | Tdk Corporation | Dust core, ferromagnetic powder composition therefor, and method of making |
SE512783C2 (en) * | 1998-03-30 | 2000-05-15 | Hoeganaes Ab | Stator assembly for an electric machine |
DE19945592A1 (en) * | 1999-09-23 | 2001-04-12 | Bosch Gmbh Robert | Soft magnetic material and process for its production |
DE19960095A1 (en) * | 1999-12-14 | 2001-07-05 | Bosch Gmbh Robert | Sintered soft magnetic composite and method for its production |
DE10031923A1 (en) * | 2000-06-30 | 2002-01-17 | Bosch Gmbh Robert | Soft magnetic material with a heterogeneous structure and process for its production |
CA2418497A1 (en) * | 2003-02-05 | 2004-08-05 | Patrick Lemieux | High performance soft magnetic parts made by powder metallurgy for ac applications |
CA2573812A1 (en) * | 2004-07-14 | 2006-01-19 | Mycoal Products Corporation | Active iron powder, heat generating composition, and heat generating body |
JP6930722B2 (en) * | 2017-06-26 | 2021-09-01 | 太陽誘電株式会社 | Manufacturing method of magnetic material, electronic component and magnetic material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1669648A (en) * | 1927-01-03 | 1928-05-15 | Western Electric Co | Magnetic material |
US2068658A (en) * | 1934-06-20 | 1937-01-26 | Associated Electric Lab Inc | Inductance coil core |
US2531445A (en) * | 1945-11-23 | 1950-11-28 | Int Standard Electric Corp | Manufacture of magnetic bodies from compressed powdered materials |
US3814598A (en) * | 1970-12-29 | 1974-06-04 | Chromalloy American Corp | Wear resistant powder metal magnetic pole piece made from oxide coated fe-al-si powders |
CA1082862A (en) * | 1977-05-16 | 1980-08-05 | Carpenter Technology Corporation | Powder metallurgy method for making shaped articles and product thereof |
-
1982
- 1982-03-17 SE SE8201678A patent/SE8201678L/en not_active Application Discontinuation
-
1983
- 1983-03-09 EP EP83102285A patent/EP0088992A3/en not_active Withdrawn
- 1983-03-15 JP JP58043028A patent/JPS58171501A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0088992A2 (en) | 1983-09-21 |
JPS58171501A (en) | 1983-10-08 |
EP0088992A3 (en) | 1984-12-19 |
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Legal Events
Date | Code | Title | Description |
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NAV | Patent application has lapsed |
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