DE2952820C2 - - Google Patents
Info
- Publication number
- DE2952820C2 DE2952820C2 DE2952820A DE2952820A DE2952820C2 DE 2952820 C2 DE2952820 C2 DE 2952820C2 DE 2952820 A DE2952820 A DE 2952820A DE 2952820 A DE2952820 A DE 2952820A DE 2952820 C2 DE2952820 C2 DE 2952820C2
- Authority
- DE
- Germany
- Prior art keywords
- binder
- matrix
- particles
- magnetic
- polyamide
- 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.)
- Expired - Lifetime
Links
- 239000002245 particle Substances 0.000 claims description 36
- 239000011230 binding agent Substances 0.000 claims description 23
- 239000004952 Polyamide Substances 0.000 claims description 14
- 229920002647 polyamide Polymers 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 150000004985 diamines Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 description 10
- 239000012943 hotmelt Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 2
- -1 cyclic nitrile Chemical class 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 150000004671 saturated fatty acids Chemical class 0.000 description 2
- 229910002771 BaFe12O19 Inorganic materials 0.000 description 1
- 241001640117 Callaeum Species 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910003145 α-Fe2O3 Inorganic materials 0.000 description 1
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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/08—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/083—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together in a bonding agent
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/10—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/113—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
- H01F1/117—Flexible bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/58—Processes of forming magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Hard Magnetic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/000,070 US4200547A (en) | 1979-01-02 | 1979-01-02 | Matrix-bonded permanent magnet having highly aligned magnetic particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2952820A1 DE2952820A1 (de) | 1980-07-17 |
| DE2952820C2 true DE2952820C2 (US06589383-20030708-C00041.png) | 1990-08-16 |
Family
ID=21689774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792952820 Granted DE2952820A1 (de) | 1979-01-02 | 1979-12-31 | Matrixgebundene permanentmagneten mit hochausgerichteten magnetteilchen |
Country Status (12)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289549A (en) * | 1978-10-31 | 1981-09-15 | Kabushiki Kaisha Suwa Seikosha | Resin bonded permanent magnet composition |
| JPS59165403A (ja) * | 1983-03-10 | 1984-09-18 | Matsushita Electric Ind Co Ltd | 樹脂マグネツト組成物 |
| JPS6120301A (ja) * | 1984-07-09 | 1986-01-29 | Kanebo Ltd | 永久磁石材料 |
| JPS61237405A (ja) * | 1985-04-12 | 1986-10-22 | Kanegafuchi Chem Ind Co Ltd | 多極着磁磁石 |
| JPH0744099B2 (ja) * | 1985-04-19 | 1995-05-15 | 鐘淵化学工業株式会社 | 軟質磁性材料組成物 |
| GB8707905D0 (en) * | 1987-04-02 | 1987-05-07 | Univ Birmingham | Magnets |
| US5115063A (en) * | 1989-01-30 | 1992-05-19 | Gencorp Inc. | High magnetic strength magnets containing a flexible acrylate-2-acrylamido-2-methylpropane sulfonic acid salt binder |
| US4911855A (en) * | 1989-01-30 | 1990-03-27 | Gencorp Inc. | High magnetic strength magnets containing a flexible acrylate-amps binder |
| JPH05335120A (ja) * | 1992-06-01 | 1993-12-17 | Mitsubishi Materials Corp | 異方性ボンド磁石製造用固体樹脂バインダー被覆磁石粉末およびその製造法 |
| DE4420318C2 (de) * | 1994-06-11 | 1996-04-11 | Schulman A Gmbh | Zusammensetzung auf Polymerbasis zur Herstellung von magnetischen und magnetisierbaren Formkörpern |
| US6317058B1 (en) | 1999-09-15 | 2001-11-13 | Jerome H. Lemelson | Intelligent traffic control and warning system and method |
| US6707361B2 (en) * | 2002-04-09 | 2004-03-16 | The Electrodyne Company, Inc. | Bonded permanent magnets |
| US7332101B2 (en) * | 2004-06-25 | 2008-02-19 | Massachusetts Institute Of Technology | Permanently linked, rigid, magnetic chains |
| US8556876B2 (en) * | 2005-06-21 | 2013-10-15 | The Procter & Gamble Company | Personal care articles of commerce comprising a magnetic member |
| DE102005045522A1 (de) * | 2005-09-23 | 2007-03-29 | Schaeffler Kg | Radial-Wälzlager |
| US8277678B2 (en) * | 2008-02-28 | 2012-10-02 | The Hong Kong Polytechnic University | Polymer-bonded magnetic materials |
| AT511545A1 (de) * | 2011-06-03 | 2012-12-15 | Minebea Co Ltd | Verfahren zur herstellung eines kunststoffgebundenen magneten |
| DE102012023263A1 (de) * | 2012-11-29 | 2014-06-05 | Minebea Co., Ltd. | Elektrische Maschine |
| JP6278976B2 (ja) * | 2012-12-21 | 2018-02-14 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | 磁石式留め具を備えた容器 |
| CN106795006B (zh) * | 2014-10-01 | 2020-03-03 | 户田工业株式会社 | 粘结磁体用铁氧体颗粒粉末、粘结磁体用树脂组合物以及使用它们的成型体 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2748099A (en) * | 1952-09-04 | 1956-05-29 | Du Pont | Polyamide compositions containing a high percentage of metal filler |
| US2849312A (en) * | 1954-02-01 | 1958-08-26 | Milton J Peterman | Method of aligning magnetic particles in a non-magnetic matrix |
| US2999275A (en) * | 1958-07-15 | 1961-09-12 | Leyman Corp | Mechanical orientation of magnetically anisotropic particles |
| SE362979B (US06589383-20030708-C00041.png) | 1970-08-12 | 1973-12-27 | Minnesota Mining & Mfg | |
| US4028255A (en) * | 1973-01-31 | 1977-06-07 | Ici Australia Limited | Preparation of polymer composites |
| JPS5437679B2 (US06589383-20030708-C00041.png) * | 1974-04-26 | 1979-11-16 | ||
| JPS51163498U (US06589383-20030708-C00041.png) * | 1976-06-09 | 1976-12-27 |
-
1979
- 1979-01-02 US US06/000,070 patent/US4200547A/en not_active Expired - Lifetime
- 1979-12-21 GB GB7944295A patent/GB2039151B/en not_active Expired
- 1979-12-27 CA CA342,662A patent/CA1110842A/en not_active Expired
- 1979-12-27 JP JP16953179A patent/JPS5593202A/ja active Granted
- 1979-12-28 CH CH1152979A patent/CH643678A5/de not_active IP Right Cessation
- 1979-12-31 DE DE19792952820 patent/DE2952820A1/de active Granted
- 1979-12-31 IT IT7951242A patent/IT1164105B/it active
- 1979-12-31 FR FR7932088A patent/FR2446003A1/fr active Granted
- 1979-12-31 KR KR7904714A patent/KR820002326B1/ko active
- 1979-12-31 AT AT0821279A patent/AT382258B/de not_active IP Right Cessation
-
1980
- 1980-01-02 BR BR8000009A patent/BR8000009A/pt not_active IP Right Cessation
- 1980-01-02 MX MX180628A patent/MX153273A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT7951242A0 (it) | 1979-12-31 |
| KR820002326B1 (ko) | 1982-12-17 |
| BR8000009A (pt) | 1980-09-23 |
| MX153273A (es) | 1986-09-08 |
| GB2039151A (en) | 1980-07-30 |
| US4200547A (en) | 1980-04-29 |
| GB2039151B (en) | 1983-01-19 |
| FR2446003B1 (US06589383-20030708-C00041.png) | 1985-03-22 |
| JPS5593202A (en) | 1980-07-15 |
| ATA821279A (de) | 1986-06-15 |
| JPH0140481B2 (US06589383-20030708-C00041.png) | 1989-08-29 |
| CA1110842A (en) | 1981-10-20 |
| AT382258B (de) | 1987-02-10 |
| DE2952820A1 (de) | 1980-07-17 |
| CH643678A5 (de) | 1984-06-15 |
| FR2446003A1 (fr) | 1980-08-01 |
| IT1164105B (it) | 1987-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: SPS TECHNOLOGIES, INC., NEWTOWN, PA., US |