JPS5716101A - Magnetic powder covered by lubricating layer - Google Patents
Magnetic powder covered by lubricating layerInfo
- Publication number
- JPS5716101A JPS5716101A JP9105380A JP9105380A JPS5716101A JP S5716101 A JPS5716101 A JP S5716101A JP 9105380 A JP9105380 A JP 9105380A JP 9105380 A JP9105380 A JP 9105380A JP S5716101 A JPS5716101 A JP S5716101A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- covered
- fatty acid
- metal
- lubricating layer
- 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
Links
- 239000006247 magnetic powder Substances 0.000 title abstract 7
- 230000001050 lubricating effect Effects 0.000 title abstract 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 4
- 229930195729 fatty acid Natural products 0.000 abstract 4
- 239000000194 fatty acid Substances 0.000 abstract 4
- 150000004665 fatty acids Chemical class 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000000314 lubricant Substances 0.000 abstract 2
- 235000021355 Stearic acid Nutrition 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000008117 stearic acid Substances 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Landscapes
- Compounds Of Iron (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To obtain a magnetic powder with a high performance lubricating layer, whose surface friction coefficient is lowered, by a method in which the surfaces of the magnetic powder are covered with a metal capable of chemically reacting with a fatty acid, and then the metal is reacted with the fatty acid.
CONSTITUTION: A magnetic powder, such as permanent magnet material (e.g., SmCo5), ferrite, etc., is covered with a metal (e.g., Cu, Ag, etc.) capable of chemically reacting with a fatty acid (e.g., stearic acid). Then, the said fatty acid is reacted with the said metal covering the said magnetic powder to obtain an objective magnetic powder covered by a lubricating agent. For the magnetic powder covered by the lubricating agent, having such greatly improved magnetic characteristics, applications are found as inexpensive powdered magnet in the fields where no practical applications have so far been found.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9105380A JPS5716101A (en) | 1980-07-03 | 1980-07-03 | Magnetic powder covered by lubricating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9105380A JPS5716101A (en) | 1980-07-03 | 1980-07-03 | Magnetic powder covered by lubricating layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5716101A true JPS5716101A (en) | 1982-01-27 |
| JPS649361B2 JPS649361B2 (en) | 1989-02-17 |
Family
ID=14015756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9105380A Granted JPS5716101A (en) | 1980-07-03 | 1980-07-03 | Magnetic powder covered by lubricating layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5716101A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4985072A (en) * | 1985-09-30 | 1991-01-15 | Kabushiki Kaisha Toshiba | Polycrystalline magnetic substances for magnetic refrigeration and a method of manufacturing the same |
| US5166039A (en) * | 1988-02-25 | 1992-11-24 | Hoya Corporation | Peeling solution for photo- or electron beam-sensitive resin and process for peeling off said resin |
| CN105931777A (en) * | 2016-05-31 | 2016-09-07 | 宁波宁港永磁材料有限公司 | Preparation method for high-flexibility samarium-cobalt permanent magnet |
-
1980
- 1980-07-03 JP JP9105380A patent/JPS5716101A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4985072A (en) * | 1985-09-30 | 1991-01-15 | Kabushiki Kaisha Toshiba | Polycrystalline magnetic substances for magnetic refrigeration and a method of manufacturing the same |
| US5166039A (en) * | 1988-02-25 | 1992-11-24 | Hoya Corporation | Peeling solution for photo- or electron beam-sensitive resin and process for peeling off said resin |
| CN105931777A (en) * | 2016-05-31 | 2016-09-07 | 宁波宁港永磁材料有限公司 | Preparation method for high-flexibility samarium-cobalt permanent magnet |
| CN105931777B (en) * | 2016-05-31 | 2017-09-08 | 宁波宁港永磁材料有限公司 | A kind of preparation method of high tenacity samarium cobalt permanent magnet body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS649361B2 (en) | 1989-02-17 |
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