JPS5961903A - 磁気記録用針状金属磁性粉末の製法 - Google Patents
磁気記録用針状金属磁性粉末の製法Info
- Publication number
- JPS5961903A JPS5961903A JP57172203A JP17220382A JPS5961903A JP S5961903 A JPS5961903 A JP S5961903A JP 57172203 A JP57172203 A JP 57172203A JP 17220382 A JP17220382 A JP 17220382A JP S5961903 A JPS5961903 A JP S5961903A
- Authority
- JP
- Japan
- Prior art keywords
- acicular
- iron oxide
- deoxidizing
- film
- metal 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003763 carbonization Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims 1
- 239000012044 organic layer Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 10
- 239000011261 inert gas Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 238000010000 carbonizing Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 abstract description 2
- 239000011368 organic material Substances 0.000 abstract 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 125000005245 nitryl group Chemical group [N+](=O)([O-])* 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000006247 magnetic powder Substances 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000003048 aphrodisiac agent Substances 0.000 description 1
- 230000002509 aphrodisiac effect Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910006540 α-FeOOH Inorganic materials 0.000 description 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
- H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/112—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles with a skin
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
- H01F1/065—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 in the form of particles, e.g. powder obtained by a reduction
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dermatology (AREA)
- General Health & Medical Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
- Paints Or Removers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57172203A JPS5961903A (ja) | 1982-09-30 | 1982-09-30 | 磁気記録用針状金属磁性粉末の製法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57172203A JPS5961903A (ja) | 1982-09-30 | 1982-09-30 | 磁気記録用針状金属磁性粉末の製法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5961903A true JPS5961903A (ja) | 1984-04-09 |
| JPH047083B2 JPH047083B2 (enrdf_load_stackoverflow) | 1992-02-07 |
Family
ID=15937491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57172203A Granted JPS5961903A (ja) | 1982-09-30 | 1982-09-30 | 磁気記録用針状金属磁性粉末の製法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5961903A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6252904A (ja) * | 1985-09-02 | 1987-03-07 | Showa Denko Kk | 磁性酸化鉄粉末の製造方法 |
| JPS6376305A (ja) * | 1986-09-18 | 1988-04-06 | Taiyo Yuden Co Ltd | プラスチツク又はゴム磁石用磁性粉及びその製造方法 |
| JP2007126755A (ja) * | 2006-12-28 | 2007-05-24 | Toyo Tanso Kk | 炭素被覆金属粒子及びその製造方法 |
-
1982
- 1982-09-30 JP JP57172203A patent/JPS5961903A/ja active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6252904A (ja) * | 1985-09-02 | 1987-03-07 | Showa Denko Kk | 磁性酸化鉄粉末の製造方法 |
| JPS6376305A (ja) * | 1986-09-18 | 1988-04-06 | Taiyo Yuden Co Ltd | プラスチツク又はゴム磁石用磁性粉及びその製造方法 |
| JP2007126755A (ja) * | 2006-12-28 | 2007-05-24 | Toyo Tanso Kk | 炭素被覆金属粒子及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH047083B2 (enrdf_load_stackoverflow) | 1992-02-07 |
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