JPS56147410A - Magnetic recording media - Google Patents

Magnetic recording media

Info

Publication number
JPS56147410A
JPS56147410A JP5071080A JP5071080A JPS56147410A JP S56147410 A JPS56147410 A JP S56147410A JP 5071080 A JP5071080 A JP 5071080A JP 5071080 A JP5071080 A JP 5071080A JP S56147410 A JPS56147410 A JP S56147410A
Authority
JP
Japan
Prior art keywords
sheet
recording media
alloy
predetermined
casted
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
JP5071080A
Other languages
Japanese (ja)
Inventor
Norishige Yamaguchi
Masaru Takayama
Masao Shigeta
Masatatsu Sugaya
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP5071080A priority Critical patent/JPS56147410A/en
Publication of JPS56147410A publication Critical patent/JPS56147410A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a recording media of 1mm. thick or less permitting high output and high density record by making a cast mother alloy including Fe, Co, W, Cr, and C and containing the predetermined amounts of W, Cr, and C wherein the alloy is processed by hot rolling and solution-heat treatment. CONSTITUTION:A thin alloy sheet of predetermined thickness is made by including Fe, Co, W, Cr and C and by fixing the contents of Co, W, Cr, and C to 10-40%, 1-10%, 4-10%, and 0.5-2.1% by weight respectively and the remaining part as Fe. The sheet is made by the above mentioned composition to form the constitution by martensite phase. In making the sheet of predetermined thickness, the above mentioned components are dissolved and casted by high-frequency heating or the like and hot rolling is applied to the casted mother alloy to make an thin alloy sheet of 1mm. thick or less. Next, a solution-heat treatment is applied to the sheet for predetermined hours at a predetermined temperature and a magnetizing process is done after quenching. And a high output and high coercive force recording media is easily prepared to be used for a magnetic tape or the like.
JP5071080A 1980-04-17 1980-04-17 Magnetic recording media Pending JPS56147410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5071080A JPS56147410A (en) 1980-04-17 1980-04-17 Magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5071080A JPS56147410A (en) 1980-04-17 1980-04-17 Magnetic recording media

Publications (1)

Publication Number Publication Date
JPS56147410A true JPS56147410A (en) 1981-11-16

Family

ID=12866446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5071080A Pending JPS56147410A (en) 1980-04-17 1980-04-17 Magnetic recording media

Country Status (1)

Country Link
JP (1) JPS56147410A (en)

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