JPS5658901A - Metal magnetic powder and its treating method - Google Patents
Metal magnetic powder and its treating methodInfo
- Publication number
- JPS5658901A JPS5658901A JP13373079A JP13373079A JPS5658901A JP S5658901 A JPS5658901 A JP S5658901A JP 13373079 A JP13373079 A JP 13373079A JP 13373079 A JP13373079 A JP 13373079A JP S5658901 A JPS5658901 A JP S5658901A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic powder
- salt
- metal magnetic
- fatty acid
- lanolin fatty
- 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
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000002184 metal Substances 0.000 title abstract 5
- 239000006247 magnetic powder Substances 0.000 title abstract 4
- 239000004166 Lanolin Substances 0.000 abstract 4
- 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
- 229940039717 lanolin Drugs 0.000 abstract 4
- 235000019388 lanolin Nutrition 0.000 abstract 4
- 150000003839 salts Chemical class 0.000 abstract 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 159000000007 calcium salts Chemical class 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Landscapes
- Paints Or Removers (AREA)
- Powder Metallurgy (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To improve oxidation resistance and dispersibility by forming an oxide film layer and a film layer contg. the salt of lanolin fatty acid on the particle surfaces of metal magnetic powder.
CONSTITUTION: The metal magnetic powder comprising essentially metal iron is dispersed in an organic solvent such as toluene dissolved with the salt of lanolin fatty acid. If an oxygen-contg. gas is blown into this dispersion, an oxide film and a film contg. the salt of lanolin fatty acid are formed simultaneously. Calcium salt is most desirable as the salt of lanolin fatty acid and the amount of coating is made about 0.5W5wt% based on the weight of the metal magnetic powder. Oxidation resistance and dispersibility are considerably improved by the formation of these two films.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54133730A JPS5852523B2 (en) | 1979-10-16 | 1979-10-16 | Metal magnetic powder and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54133730A JPS5852523B2 (en) | 1979-10-16 | 1979-10-16 | Metal magnetic powder and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5658901A true JPS5658901A (en) | 1981-05-22 |
| JPS5852523B2 JPS5852523B2 (en) | 1983-11-24 |
Family
ID=15111562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54133730A Expired JPS5852523B2 (en) | 1979-10-16 | 1979-10-16 | Metal magnetic powder and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852523B2 (en) |
-
1979
- 1979-10-16 JP JP54133730A patent/JPS5852523B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5852523B2 (en) | 1983-11-24 |
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