JPS57116705A - Manufacture of metallic magnetic powder - Google Patents

Manufacture of metallic magnetic powder

Info

Publication number
JPS57116705A
JPS57116705A JP56002311A JP231181A JPS57116705A JP S57116705 A JPS57116705 A JP S57116705A JP 56002311 A JP56002311 A JP 56002311A JP 231181 A JP231181 A JP 231181A JP S57116705 A JPS57116705 A JP S57116705A
Authority
JP
Japan
Prior art keywords
powder
compound
particles
metallic
iron
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
JP56002311A
Other languages
Japanese (ja)
Inventor
Shigeo Hirai
Toshinobu Sueyoshi
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 JP56002311A priority Critical patent/JPS57116705A/en
Publication of JPS57116705A publication Critical patent/JPS57116705A/en
Pending 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 sticking an Al compound and an Si compound to powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide, heat treating the powder, and carrying out reduction underheating.
CONSTITUTION: An Al compound and an Si compound are stuck to the particle surfaces of powder of a metallic compound consisting essentially of iron oxyhydroxide or iron oxide. The powder is heat treated at 500W1,000°C, and holes formed by the dehydration in the particles are sealed to decrease the surface area. Reduction under heating is then carried out at about 300W600°C in a reducting atmosphere of gaseous hydrogen or the like. By this method sintering among the particles of the powder and the deformation of the particles are inhibited effectively, and iron-base metallic magnetic powder with superior magnetic characteristics is obtd.
COPYRIGHT: (C)1982,JPO&Japio
JP56002311A 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder Pending JPS57116705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002311A JPS57116705A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002311A JPS57116705A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Publications (1)

Publication Number Publication Date
JPS57116705A true JPS57116705A (en) 1982-07-20

Family

ID=11525800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002311A Pending JPS57116705A (en) 1981-01-10 1981-01-10 Manufacture of metallic magnetic powder

Country Status (1)

Country Link
JP (1) JPS57116705A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116414A (en) * 1990-08-31 1991-05-17 Konica Corp Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116414A (en) * 1990-08-31 1991-05-17 Konica Corp Magnetic recording medium

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