JPS57116708A - Manufacture of metallic magnetic powder - Google Patents

Manufacture of metallic magnetic powder

Info

Publication number
JPS57116708A
JPS57116708A JP56002314A JP231481A JPS57116708A JP S57116708 A JPS57116708 A JP S57116708A JP 56002314 A JP56002314 A JP 56002314A JP 231481 A JP231481 A JP 231481A JP S57116708 A JPS57116708 A JP S57116708A
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.)
Granted
Application number
JP56002314A
Other languages
Japanese (ja)
Other versions
JPH0152442B2 (en
Inventor
Akinari Hayashi
Katsunori Tashimo
Shigeo Hirai
Toshinobu Sueyoshi
Mikio Kishimoto
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 JP56002314A priority Critical patent/JPS57116708A/en
Priority to US06/337,149 priority patent/US4400337A/en
Priority to EP82100091A priority patent/EP0056257B1/en
Priority to DE8282100091T priority patent/DE3261979D1/en
Publication of JPS57116708A publication Critical patent/JPS57116708A/en
Publication of JPH0152442B2 publication Critical patent/JPH0152442B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain metallic magnetic powder with superior magnetic characteristics by simultaneously sticking an Al compound and an Si compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, granulating the powder, and carrying out reduction under heating.
CONSTITUTION: An Al compound and an Si compound are simultaneously stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide. The powder is granulated and reduced under heating at atout 300W600°C in a reducing gaseous atmosphere of gaseuous 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 magentic powder with superior magnetic characteristics is obtd.
COPYRIGHT: (C)1982,JPO&Japio
JP56002314A 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder Granted JPS57116708A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56002314A JPS57116708A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder
US06/337,149 US4400337A (en) 1981-01-10 1982-01-05 Method for production of metal magnetic particles
EP82100091A EP0056257B1 (en) 1981-01-10 1982-01-08 Method for production of metal magnetic particles
DE8282100091T DE3261979D1 (en) 1981-01-10 1982-01-08 Method for production of metal magnetic particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002314A JPS57116708A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Publications (2)

Publication Number Publication Date
JPS57116708A true JPS57116708A (en) 1982-07-20
JPH0152442B2 JPH0152442B2 (en) 1989-11-08

Family

ID=11525870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002314A Granted JPS57116708A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Country Status (1)

Country Link
JP (1) JPS57116708A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0441235U (en) * 1990-08-09 1992-04-08

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52134858A (en) * 1976-05-07 1977-11-11 Kanto Denka Kogyo Kk Method of making magnetic recording magnetic powder containing iron as main constituent

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52134858A (en) * 1976-05-07 1977-11-11 Kanto Denka Kogyo Kk Method of making magnetic recording magnetic powder containing iron as main constituent

Also Published As

Publication number Publication date
JPH0152442B2 (en) 1989-11-08

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