JPS55164001A - Treatment of magnetic metal powder - Google Patents
Treatment of magnetic metal powderInfo
- Publication number
- JPS55164001A JPS55164001A JP7150079A JP7150079A JPS55164001A JP S55164001 A JPS55164001 A JP S55164001A JP 7150079 A JP7150079 A JP 7150079A JP 7150079 A JP7150079 A JP 7150079A JP S55164001 A JPS55164001 A JP S55164001A
- Authority
- JP
- Japan
- Prior art keywords
- metal powder
- magnetic metal
- blown
- organic solvent
- corrosion resistance
- 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
- 239000002184 metal Substances 0.000 title abstract 7
- 239000000843 powder Substances 0.000 title abstract 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To raise the corrosion resistance of the magnetic metal powder by a procedure in which a magnetic metal powder is suspended in an organic solvent without acid groups and then an oxidative gas is blown into the suspension under a heating condition.
CONSTITUTION: The magnetic metal powder is sustended in organic solvent without acid group, e.g., toluene, xylene, butyl acetate, etc., and then air is blown into the suspension heated to an appropriate temperature at approx. 50W130°C to forcibly oxidize the surfaces of the magnetic metal powder, whereby forming a dense and passive film on the surfaces of the magnetic metal powder. Thus, the corrosion resistance of the magnetic metal powder is greatly improved and also the lowering with time of the saturated magnetizing amount is eliminated, thus raising its storage stability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7150079A JPS55164001A (en) | 1979-06-07 | 1979-06-07 | Treatment of magnetic metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7150079A JPS55164001A (en) | 1979-06-07 | 1979-06-07 | Treatment of magnetic metal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55164001A true JPS55164001A (en) | 1980-12-20 |
Family
ID=13462448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7150079A Pending JPS55164001A (en) | 1979-06-07 | 1979-06-07 | Treatment of magnetic metal powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164001A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5003919A (en) * | 1987-02-12 | 1991-04-02 | Chisso Corporation | Apparatus for stabilization treatment of ferromagnetic metal powder |
| EP0659171A4 (en) * | 1992-08-26 | 1996-06-05 | Conversion Systems Inc | A method and mixture for treating electric arc furnace dust. |
-
1979
- 1979-06-07 JP JP7150079A patent/JPS55164001A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5003919A (en) * | 1987-02-12 | 1991-04-02 | Chisso Corporation | Apparatus for stabilization treatment of ferromagnetic metal powder |
| EP0659171A4 (en) * | 1992-08-26 | 1996-06-05 | Conversion Systems Inc | A method and mixture for treating electric arc furnace dust. |
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