JPS5848612A - 強磁性鉄粉の製造方法 - Google Patents
強磁性鉄粉の製造方法Info
- Publication number
- JPS5848612A JPS5848612A JP56146186A JP14618681A JPS5848612A JP S5848612 A JPS5848612 A JP S5848612A JP 56146186 A JP56146186 A JP 56146186A JP 14618681 A JP14618681 A JP 14618681A JP S5848612 A JPS5848612 A JP S5848612A
- Authority
- JP
- Japan
- Prior art keywords
- iron powder
- zinc borate
- heating
- alpha
- mixture
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56146186A JPS5848612A (ja) | 1981-09-18 | 1981-09-18 | 強磁性鉄粉の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56146186A JPS5848612A (ja) | 1981-09-18 | 1981-09-18 | 強磁性鉄粉の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5848612A true JPS5848612A (ja) | 1983-03-22 |
JPH0232324B2 JPH0232324B2 (enrdf_load_stackoverflow) | 1990-07-19 |
Family
ID=15402076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56146186A Granted JPS5848612A (ja) | 1981-09-18 | 1981-09-18 | 強磁性鉄粉の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848612A (enrdf_load_stackoverflow) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848611A (ja) * | 1981-09-18 | 1983-03-22 | Mitsui Toatsu Chem Inc | 強磁性鉄粉体の製造方法 |
US5143542A (en) * | 1989-12-22 | 1992-09-01 | Ishihara Sangyo Kaisha, Ltd. | Process for producing magnetic metal powder for magnetic recording |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5272354A (en) * | 1975-12-12 | 1977-06-16 | Hitachi Maxell | Method of making ferromagnetic metal powder |
JPS5457459A (en) * | 1977-09-27 | 1979-05-09 | Basf Ag | Ferromagnetic metal particles based on iron and prodution |
JPS5573803A (en) * | 1978-11-25 | 1980-06-03 | Hitachi Maxell Ltd | Production of magnetic alloy powder |
JPS5625908A (en) * | 1979-08-10 | 1981-03-12 | Toda Kogyo Corp | Preparation of magnetic grain powder consisting of needle crystal alloy of iron and cobalt |
JPS56139606A (en) * | 1980-04-01 | 1981-10-31 | Tdk Corp | Production of metallic magnetic powder |
JPS57116715A (en) * | 1981-01-10 | 1982-07-20 | Hitachi Maxell Ltd | Manufacture of metallic magnetic powder |
JPS5848611A (ja) * | 1981-09-18 | 1983-03-22 | Mitsui Toatsu Chem Inc | 強磁性鉄粉体の製造方法 |
-
1981
- 1981-09-18 JP JP56146186A patent/JPS5848612A/ja active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5272354A (en) * | 1975-12-12 | 1977-06-16 | Hitachi Maxell | Method of making ferromagnetic metal powder |
JPS5457459A (en) * | 1977-09-27 | 1979-05-09 | Basf Ag | Ferromagnetic metal particles based on iron and prodution |
JPS5573803A (en) * | 1978-11-25 | 1980-06-03 | Hitachi Maxell Ltd | Production of magnetic alloy powder |
JPS5625908A (en) * | 1979-08-10 | 1981-03-12 | Toda Kogyo Corp | Preparation of magnetic grain powder consisting of needle crystal alloy of iron and cobalt |
JPS56139606A (en) * | 1980-04-01 | 1981-10-31 | Tdk Corp | Production of metallic magnetic powder |
JPS57116715A (en) * | 1981-01-10 | 1982-07-20 | Hitachi Maxell Ltd | Manufacture of metallic magnetic powder |
JPS5848611A (ja) * | 1981-09-18 | 1983-03-22 | Mitsui Toatsu Chem Inc | 強磁性鉄粉体の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848611A (ja) * | 1981-09-18 | 1983-03-22 | Mitsui Toatsu Chem Inc | 強磁性鉄粉体の製造方法 |
US5143542A (en) * | 1989-12-22 | 1992-09-01 | Ishihara Sangyo Kaisha, Ltd. | Process for producing magnetic metal powder for magnetic recording |
Also Published As
Publication number | Publication date |
---|---|
JPH0232324B2 (enrdf_load_stackoverflow) | 1990-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5848612A (ja) | 強磁性鉄粉の製造方法 | |
JPS5848611A (ja) | 強磁性鉄粉体の製造方法 | |
US4469506A (en) | Production process of ferromagnetic iron powder | |
US5217542A (en) | Method for producing surface-treated magnetic powder | |
JPS6411577B2 (enrdf_load_stackoverflow) | ||
US4469507A (en) | Production process of ferromagnetic iron powder | |
JP2735885B2 (ja) | 磁気記録用金属磁性粉末の製造方法 | |
JP2965606B2 (ja) | 金属磁性粉末の製造方法 | |
JP2970705B2 (ja) | 針状磁性酸化鉄粒子粉末の製造法 | |
JPH02250902A (ja) | 磁気記録用針状晶鉄合金磁性粒子粉末 | |
JPH03171601A (ja) | 強磁性金属粉末及び磁気記録媒体 | |
JPS61186410A (ja) | 強磁性金属粉末の製造方法 | |
JP3087808B2 (ja) | 磁気記録用磁性粒子粉末の製造法 | |
JP3055308B2 (ja) | 針状磁性酸化鉄粒子粉末の製造法 | |
JPH0532421A (ja) | 針状磁性酸化鉄粒子粉末の製造法 | |
JPS638224A (ja) | 磁気記録用強磁性粉末の製造方法 | |
JPS58126905A (ja) | 鉄又は鉄を主成分とする磁性金属粉末の製造方法 | |
JPH0340083B2 (enrdf_load_stackoverflow) | ||
JPH0147522B2 (enrdf_load_stackoverflow) | ||
JPH11189421A (ja) | 金属磁性粉末の製造方法 | |
JPH07330341A (ja) | 針状磁性酸化鉄粒子粉末の製造法 | |
JPH0454362B2 (enrdf_load_stackoverflow) | ||
JPS60127241A (ja) | 酸化鉄磁性粉 | |
JPH043902A (ja) | 磁気記録用針状磁性酸化鉄粒子粉末及びその製造法 | |
JPS61201626A (ja) | 紡錘型を呈した磁性酸化鉄粒子粉末及びその製造法 |