JPS55150117A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55150117A
JPS55150117A JP5706679A JP5706679A JPS55150117A JP S55150117 A JPS55150117 A JP S55150117A JP 5706679 A JP5706679 A JP 5706679A JP 5706679 A JP5706679 A JP 5706679A JP S55150117 A JPS55150117 A JP S55150117A
Authority
JP
Japan
Prior art keywords
dispersed
alloy
magnetic
magnetic tape
particles
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
JP5706679A
Other languages
Japanese (ja)
Other versions
JPS6143767B2 (en
Inventor
Shinji Narushige
Mitsuo Sato
Seiki Shimizu
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP5706679A priority Critical patent/JPS55150117A/en
Publication of JPS55150117A publication Critical patent/JPS55150117A/en
Publication of JPS6143767B2 publication Critical patent/JPS6143767B2/ja
Granted 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To improve durability by preventing the abrasion of a core, by forming an Ni-W alloy plating layer, in which nonmagnetic material particles as hard as or harder than a magnetic tape are dispersed, on the surface of a magnetic head meeting the tape. CONSTITUTION:On the surface of a magnetic head meeting a magnetic tape, Ni-W alloy, in which not less than one of nonmagnetic materials SiC, TiC, TaC, WC, ZrC, B4C, Cr3C2, Al2O3 and Cr2O3 as hard as or harder than a magnetic material used for the magnetic tape is dispersed, is formed by electroplating. The plating layer, an alloy of 20-38% Ni and W for the remainder, should approximatly be 100-150mu. The mean size of particles to be dispersed should be 0.3-5mu and the Ni-W alloy in which the particles are dispersed to 5-20% in area rate, is formed by plating on a core material preliminarily plated with copper, silver, gold or platinum group metal. Thus, a head of good resistance to wear and superior durability can be obtained which never damages a magnetic tape.
JP5706679A 1979-05-11 1979-05-11 Magnetic head Granted JPS55150117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5706679A JPS55150117A (en) 1979-05-11 1979-05-11 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5706679A JPS55150117A (en) 1979-05-11 1979-05-11 Magnetic head

Publications (2)

Publication Number Publication Date
JPS55150117A true JPS55150117A (en) 1980-11-21
JPS6143767B2 JPS6143767B2 (en) 1986-09-30

Family

ID=13045064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5706679A Granted JPS55150117A (en) 1979-05-11 1979-05-11 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55150117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129917A (en) * 1983-01-13 1984-07-26 Sankyo Seiki Mfg Co Ltd Magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129917A (en) * 1983-01-13 1984-07-26 Sankyo Seiki Mfg Co Ltd Magnetic head

Also Published As

Publication number Publication date
JPS6143767B2 (en) 1986-09-30

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