JPS5848611A - 強磁性鉄粉体の製造方法 - Google Patents

強磁性鉄粉体の製造方法

Info

Publication number
JPS5848611A
JPS5848611A JP56146185A JP14618581A JPS5848611A JP S5848611 A JPS5848611 A JP S5848611A JP 56146185 A JP56146185 A JP 56146185A JP 14618581 A JP14618581 A JP 14618581A JP S5848611 A JPS5848611 A JP S5848611A
Authority
JP
Japan
Prior art keywords
iron powder
borate
boron oxide
magnetic
heating
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
Application number
JP56146185A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0230361B2 (enExample
Inventor
Haruo Sekiguchi
関口　晴夫
Kimiteru Tagawa
公照 田川
Kazufumi Oshima
一史 大島
Nobuhiro Fukuda
福田　信弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP56146185A priority Critical patent/JPS5848611A/ja
Publication of JPS5848611A publication Critical patent/JPS5848611A/ja
Publication of JPH0230361B2 publication Critical patent/JPH0230361B2/ja
Granted legal-status Critical Current

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)
JP56146185A 1981-09-18 1981-09-18 強磁性鉄粉体の製造方法 Granted JPS5848611A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56146185A JPS5848611A (ja) 1981-09-18 1981-09-18 強磁性鉄粉体の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56146185A JPS5848611A (ja) 1981-09-18 1981-09-18 強磁性鉄粉体の製造方法

Publications (2)

Publication Number Publication Date
JPS5848611A true JPS5848611A (ja) 1983-03-22
JPH0230361B2 JPH0230361B2 (enExample) 1990-07-05

Family

ID=15402054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56146185A Granted JPS5848611A (ja) 1981-09-18 1981-09-18 強磁性鉄粉体の製造方法

Country Status (1)

Country Link
JP (1) JPS5848611A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848612A (ja) * 1981-09-18 1983-03-22 Mitsui Toatsu Chem Inc 強磁性鉄粉の製造方法
US5143542A (en) * 1989-12-22 1992-09-01 Ishihara Sangyo Kaisha, Ltd. Process for producing magnetic metal powder for magnetic recording
US7556838B2 (en) * 2005-08-25 2009-07-07 Sumitomo Electric Industries, Ltd. Soft magnetic material, powder magnetic core, method for manufacturing soft magnetic material, and method for manufacturing powder magnetic core

Citations (4)

* Cited by examiner, † Cited by third party
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
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
JPS5848612A (ja) * 1981-09-18 1983-03-22 Mitsui Toatsu Chem Inc 強磁性鉄粉の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
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
JPS5848612A (ja) * 1981-09-18 1983-03-22 Mitsui Toatsu Chem Inc 強磁性鉄粉の製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848612A (ja) * 1981-09-18 1983-03-22 Mitsui Toatsu Chem Inc 強磁性鉄粉の製造方法
US5143542A (en) * 1989-12-22 1992-09-01 Ishihara Sangyo Kaisha, Ltd. Process for producing magnetic metal powder for magnetic recording
US7556838B2 (en) * 2005-08-25 2009-07-07 Sumitomo Electric Industries, Ltd. Soft magnetic material, powder magnetic core, method for manufacturing soft magnetic material, and method for manufacturing powder magnetic core

Also Published As

Publication number Publication date
JPH0230361B2 (enExample) 1990-07-05

Similar Documents

Publication Publication Date Title
US3865627A (en) Magnetic recording medium incorporating fine acicular iron-based particles
US4066564A (en) Process for producing cobalt- and iron-containing ferromagnetic powder by heat-treatment in the presence of an oxidizing agent
US4066565A (en) Process for producing cobalt- and iron-containing ferromagnetic powder
JPS5848611A (ja) 強磁性鉄粉体の製造方法
US5552072A (en) Coated acicular fine particulate materials, processes for preparing same and use thereof
JPS5848612A (ja) 強磁性鉄粉の製造方法
JP5403222B2 (ja) 磁気記録用金属磁性粒子粉末の製造方法、並びに磁気記録媒体
US5217542A (en) Method for producing surface-treated magnetic powder
JPH04228502A (ja) 炭素を含有する針状金属鉄微粒子、その製法、それを含有する磁性塗料組成物及び磁気記録媒体
JPH04246475A (ja) 磁性塗料の製造方法
JP2735885B2 (ja) 磁気記録用金属磁性粉末の製造方法
JP2970706B2 (ja) 針状磁性酸化鉄粒子粉末の製造法
JP2925561B2 (ja) 紡錘形を呈した磁性酸化鉄粒子粉末
JP2970705B2 (ja) 針状磁性酸化鉄粒子粉末の製造法
US4469507A (en) Production process of ferromagnetic iron powder
JP2965606B2 (ja) 金属磁性粉末の製造方法
JPH11106218A (ja) 磁気記録媒体用金属磁性粉末
JP3095041B2 (ja) 鉄を主成分とする針状金属磁性粒子粉末の製造法
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
JPH02250902A (ja) 磁気記録用針状晶鉄合金磁性粒子粉末
JPH07320919A (ja) 被着した微粒子及びその製法並びに用途
JPS60263328A (ja) 磁気記録媒体
JPH0374809A (ja) 強磁性金属粉末の処理方法及び磁気記録媒体
JPH11189421A (ja) 金属磁性粉末の製造方法