JPS56142802A - Treatment of metallic powder - Google Patents

Treatment of metallic powder

Info

Publication number
JPS56142802A
JPS56142802A JP3510180A JP3510180A JPS56142802A JP S56142802 A JPS56142802 A JP S56142802A JP 3510180 A JP3510180 A JP 3510180A JP 3510180 A JP3510180 A JP 3510180A JP S56142802 A JPS56142802 A JP S56142802A
Authority
JP
Japan
Prior art keywords
powder
time
metallic powder
metallic
immersed
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
JP3510180A
Other languages
Japanese (ja)
Inventor
Hiroshi Zaitsu
Ichiji Miyata
Nariyuki Hosoo
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 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 JP3510180A priority Critical patent/JPS56142802A/en
Publication of JPS56142802A publication Critical patent/JPS56142802A/en
Pending legal-status Critical Current

Links

Landscapes

  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Powder Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To obtain powder of metallic iron or the like which undergoes little deterioration in performance during preservation, is excellent in dispersibility at the time of preparing a paint therefrom and is useful for a recording element and the like by incorporating an aromatic amine-based antioxidant in an organic solvent into which the metallic powder is immersed.
CONSTITUTION: A ferromagnetic metallic powder consisting of iron is immersed in the organic solvent such as toluene containing about 0.2W5wt% (based on the weight of the metallic powder) of the aromatic amine-based antioxidant such as phenyl-α-naphthylamine, and the mixture is stirred. After preserving the mixture for a predetermined period of time, the powder is filtered out and dried in an air flow. The metallic powder thus treated undergoes little deterioration in saturation magnetization when it is preserved for a long period of time. In addition, the powder exhibits excellent dispersibility at the time of preparing a magnetic paint therefrom.
COPYRIGHT: (C)1981,JPO&Japio
JP3510180A 1980-03-18 1980-03-18 Treatment of metallic powder Pending JPS56142802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3510180A JPS56142802A (en) 1980-03-18 1980-03-18 Treatment of metallic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3510180A JPS56142802A (en) 1980-03-18 1980-03-18 Treatment of metallic powder

Publications (1)

Publication Number Publication Date
JPS56142802A true JPS56142802A (en) 1981-11-07

Family

ID=12432538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3510180A Pending JPS56142802A (en) 1980-03-18 1980-03-18 Treatment of metallic powder

Country Status (1)

Country Link
JP (1) JPS56142802A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953601A (en) * 1982-08-24 1984-03-28 Dainippon Ink & Chem Inc Manufacture of stable ferromagnetic metallic powder
JPS6089501A (en) * 1983-10-22 1985-05-20 Chisso Corp Production of magnetic metallic powder keeping stability
JPS6333802A (en) * 1986-07-29 1988-02-13 Tohoku Metal Ind Ltd Manufacture of composite magnet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953601A (en) * 1982-08-24 1984-03-28 Dainippon Ink & Chem Inc Manufacture of stable ferromagnetic metallic powder
JPS6089501A (en) * 1983-10-22 1985-05-20 Chisso Corp Production of magnetic metallic powder keeping stability
JPS6333802A (en) * 1986-07-29 1988-02-13 Tohoku Metal Ind Ltd Manufacture of composite magnet

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