JPS6411304A - Permanent plastic magnet - Google Patents
Permanent plastic magnetInfo
- Publication number
- JPS6411304A JPS6411304A JP62168350A JP16835087A JPS6411304A JP S6411304 A JPS6411304 A JP S6411304A JP 62168350 A JP62168350 A JP 62168350A JP 16835087 A JP16835087 A JP 16835087A JP S6411304 A JPS6411304 A JP S6411304A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- thermoplastic resin
- rare earth
- phosphate
- intermetallic compound
- 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.)
- Pending
Links
- 239000006247 magnetic powder Substances 0.000 abstract 4
- 229910019142 PO4 Inorganic materials 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 3
- 239000010452 phosphate Substances 0.000 abstract 3
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 3
- 229920005992 thermoplastic resin Polymers 0.000 abstract 3
- 239000007767 bonding agent Substances 0.000 abstract 2
- 239000004615 ingredient Substances 0.000 abstract 2
- 229910000765 intermetallic Inorganic materials 0.000 abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 150000002910 rare earth metals Chemical class 0.000 abstract 2
- 229910052723 transition metal Inorganic materials 0.000 abstract 2
- 150000003624 transition metals Chemical class 0.000 abstract 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004734 Polyphenylene sulfide Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 229920000069 polyphenylene sulfide Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 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
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE:To prevent oxidative deterioration and to prevent a drop in magnetic characteristics due to oxidation, by composing this magnet of intermetallic compound magnetic powder, whose chief ingredients are rare earth metals and transition metals expressed in R-Fe-B, and thermoplastic resin as a bonding agent, and by performing coating processing of phosphate on a surface of the metallic powder. CONSTITUTION:Intermetallic compound magnetic powder, whose chief ingredients are rare earth metals and transition metals, is typical of R-Fe-B substance (where R is Nd and/or Pr, or one or more species of rare earth elements substituted for one part of these atoms, and addition of Al, Co, Ga, Dy, and the like is allowed to improve magnetic characteristics), magnetic powder known as an SmCo5/Sm2Co17 alloy magnet, or the like. A particle diameter of said magnetic powder is preferably 1-150mum or so. A phosphate film processing agent for antitrust purpose is suitable for the phosphate. Polyamide, polyethylene, polyolefine of polypropylene or the like, polyvinyl chloride, polyester, polyphenylene sulfide, and other thermoplastic resin are exmplified for the thermoplastic resin serving as a bonding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168350A JPS6411304A (en) | 1987-07-06 | 1987-07-06 | Permanent plastic magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168350A JPS6411304A (en) | 1987-07-06 | 1987-07-06 | Permanent plastic magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6411304A true JPS6411304A (en) | 1989-01-13 |
Family
ID=15866436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62168350A Pending JPS6411304A (en) | 1987-07-06 | 1987-07-06 | Permanent plastic magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6411304A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647953A2 (en) * | 1993-10-06 | 1995-04-12 | Yasunori Takahashi | A powdery raw material composition for a permanent magnet, a permanent magnet and a method for producing the magnet |
| EP0663672A2 (en) * | 1994-01-12 | 1995-07-19 | Yasunori Takahashi | Method of producing rare earth-iron-boron magnets |
| EP0675511A1 (en) * | 1994-03-30 | 1995-10-04 | Yasunori Takahashi | Material for permanent magnet, production method thereof and permanent magnet |
| EP0769791A1 (en) * | 1995-10-18 | 1997-04-23 | Seiko Epson Corporation | Rare earth bonded magnet and composition therefor |
-
1987
- 1987-07-06 JP JP62168350A patent/JPS6411304A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647953A2 (en) * | 1993-10-06 | 1995-04-12 | Yasunori Takahashi | A powdery raw material composition for a permanent magnet, a permanent magnet and a method for producing the magnet |
| EP0647953A3 (en) * | 1993-10-06 | 1995-04-26 | Takahashi Yasunori | |
| EP0663672A2 (en) * | 1994-01-12 | 1995-07-19 | Yasunori Takahashi | Method of producing rare earth-iron-boron magnets |
| EP0663672A3 (en) * | 1994-01-12 | 1995-08-09 | Takahashi Yasunori | |
| EP0675511A1 (en) * | 1994-03-30 | 1995-10-04 | Yasunori Takahashi | Material for permanent magnet, production method thereof and permanent magnet |
| EP0769791A1 (en) * | 1995-10-18 | 1997-04-23 | Seiko Epson Corporation | Rare earth bonded magnet and composition therefor |
| US5888417A (en) * | 1995-10-18 | 1999-03-30 | Seiko Epson Corporation | Rare earth bonded magnet and composition therefor |
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