JPS5792101A - Production of magnetic powder of metallic iron or alloy consisting essentially of iron - Google Patents
Production of magnetic powder of metallic iron or alloy consisting essentially of ironInfo
- Publication number
- JPS5792101A JPS5792101A JP55168517A JP16851780A JPS5792101A JP S5792101 A JPS5792101 A JP S5792101A JP 55168517 A JP55168517 A JP 55168517A JP 16851780 A JP16851780 A JP 16851780A JP S5792101 A JPS5792101 A JP S5792101A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- particles
- consisting essentially
- metallic
- magnetic powder
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 16
- 229910052742 iron Inorganic materials 0.000 title abstract 8
- 229910045601 alloy Inorganic materials 0.000 title abstract 3
- 239000000956 alloy Substances 0.000 title abstract 3
- 239000006247 magnetic powder Substances 0.000 title abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 6
- 239000002245 particle Substances 0.000 abstract 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000013528 metallic particle Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To obtain magnetic powder of metallic iron or an alloy consisting essentially of iron of excellent oxidation stability by reducing iron oxide particles by heating then holding the same in a hydrogen atmosphere contg. steam, and immersing these in an org. solvent after cooling.
CONSTITUTION: Iron oxide particles contg. iron oxide or cobalt are reduced by heating in a reducing gas to make metallic iron particles or iron alloy particles consisting essentially of iron. Thence, these are held for a prescribed time at 150W700°C in a hydrogen atmosphere contg. steam of 10W100% steam partial pressure. Thence, these are cooled down to room temp. under supply of gaseous nitrogen or the like, whereby dense oxide layers are formed on the surfaces of the metallic particles. these are then immersed in an org. solvent such as toluene, after which the particles are pulled up and the org. solvent is evaporated. By this method, the magnetic powder of metallic iron or an alloy consisting essentially of iron of excellent oxidation stability, magnetic characteristics, etc. is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55168517A JPS585241B2 (en) | 1980-11-29 | 1980-11-29 | Method for manufacturing metallic iron or alloy magnetic powder mainly composed of iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55168517A JPS585241B2 (en) | 1980-11-29 | 1980-11-29 | Method for manufacturing metallic iron or alloy magnetic powder mainly composed of iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5792101A true JPS5792101A (en) | 1982-06-08 |
| JPS585241B2 JPS585241B2 (en) | 1983-01-29 |
Family
ID=15869498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55168517A Expired JPS585241B2 (en) | 1980-11-29 | 1980-11-29 | Method for manufacturing metallic iron or alloy magnetic powder mainly composed of iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585241B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916901A (en) * | 1982-07-16 | 1984-01-28 | Fuji Photo Film Co Ltd | Processing method of ferromagnetic metal powder |
| JPS59170201A (en) * | 1983-03-15 | 1984-09-26 | Kanto Denka Kogyo Kk | Stabilizing method of magnetic metallic powder |
-
1980
- 1980-11-29 JP JP55168517A patent/JPS585241B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916901A (en) * | 1982-07-16 | 1984-01-28 | Fuji Photo Film Co Ltd | Processing method of ferromagnetic metal powder |
| JPH042641B2 (en) * | 1982-07-16 | 1992-01-20 | ||
| JPS59170201A (en) * | 1983-03-15 | 1984-09-26 | Kanto Denka Kogyo Kk | Stabilizing method of magnetic metallic powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS585241B2 (en) | 1983-01-29 |
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