JPS57116712A - Manufacture of metallic magnetic powder - Google Patents

Manufacture of metallic magnetic powder

Info

Publication number
JPS57116712A
JPS57116712A JP56002318A JP231881A JPS57116712A JP S57116712 A JPS57116712 A JP S57116712A JP 56002318 A JP56002318 A JP 56002318A JP 231881 A JP231881 A JP 231881A JP S57116712 A JPS57116712 A JP S57116712A
Authority
JP
Japan
Prior art keywords
powder
compound
metallic
iron
under 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.)
Pending
Application number
JP56002318A
Other languages
Japanese (ja)
Inventor
Toshinobu Sueyoshi
Shigeo Hirai
Akinari Hayashi
Mikio Kishimoto
Katsunori Tashimo
Masahiro Amamiya
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56002318A priority Critical patent/JPS57116712A/en
Publication of JPS57116712A publication Critical patent/JPS57116712A/en
Pending legal-status Critical Current

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  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE: To obtain metallic magnetic powder with superior magnetic characteristics by sticking a Zn compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, heat treating the powder, further sticking an Si compound to the powder, granulating this powder, and carrying out reduction under heating.
CONSTITUTION: A Zn compound is stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, and the powder is heat treated at 200W500°C. After further sticking an Si compound to the particle surfaces, the powder is granulated and reduced under heating at about 300W600°C in a reducing atmosphere of gaseous hydrogen or the like. By this method the reduction under heating can be carried out sufficiently and uniformly while effectively inhibiting sintering among the granules and the particles of the powder and the deformation of the particles. As a result, iron-base metallic magnetic powder with superior magnetic characteristics is obtd.
COPYRIGHT: (C)1982,JPO&Japio
JP56002318A 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder Pending JPS57116712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002318A JPS57116712A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002318A JPS57116712A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Publications (1)

Publication Number Publication Date
JPS57116712A true JPS57116712A (en) 1982-07-20

Family

ID=11525973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002318A Pending JPS57116712A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Country Status (1)

Country Link
JP (1) JPS57116712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280301A (en) * 1989-04-20 1990-11-16 Toda Kogyo Corp Magnetic iron oxide particle powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280301A (en) * 1989-04-20 1990-11-16 Toda Kogyo Corp Magnetic iron oxide particle powder

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