JPS55142409A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55142409A
JPS55142409A JP4840979A JP4840979A JPS55142409A JP S55142409 A JPS55142409 A JP S55142409A JP 4840979 A JP4840979 A JP 4840979A JP 4840979 A JP4840979 A JP 4840979A JP S55142409 A JPS55142409 A JP S55142409A
Authority
JP
Japan
Prior art keywords
coating material
magnetic head
primary coating
slide
concave
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
JP4840979A
Other languages
Japanese (ja)
Inventor
Hiroshi Akiyama
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP4840979A priority Critical patent/JPS55142409A/en
Publication of JPS55142409A publication Critical patent/JPS55142409A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable to ensure the recording and reproducing of information, by reducing the amount of dust attached due to slide with magnetic tape, through the wear proof and lubrication by covering a plurality of materials on the slide surface of the magnetic head.
CONSTITUTION: The primary coating material 6 such as nickel alloy and chromium alloy is attached on the surface of the case 3 made of high permeability material such as permalloy with molten injection, then a stress is given to the primary coating material 6 with the difference of the thermal expansion coefficient between the case 3 and the primary coating material 6, to form the concave 6a having fine holes, cracks. The secondary coating material 7 is injected to the concave 6a, which has lower friction coefficient made of fluorine resin. The slide part 4 is formed by cutting or polishing this along one dotted chain line 8. Thus, degradation of the recording characteristics of magnetic head is avoided and the life can be kept longer.
COPYRIGHT: (C)1980,JPO&Japio
JP4840979A 1979-04-19 1979-04-19 Magnetic head Pending JPS55142409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4840979A JPS55142409A (en) 1979-04-19 1979-04-19 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4840979A JPS55142409A (en) 1979-04-19 1979-04-19 Magnetic head

Publications (1)

Publication Number Publication Date
JPS55142409A true JPS55142409A (en) 1980-11-07

Family

ID=12802497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4840979A Pending JPS55142409A (en) 1979-04-19 1979-04-19 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55142409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897747A (en) * 1987-03-06 1990-01-30 Thomson-Csf Write/read head including monocrystalline magnetic thin films protected by a coating having hardened and lubricating zones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897747A (en) * 1987-03-06 1990-01-30 Thomson-Csf Write/read head including monocrystalline magnetic thin films protected by a coating having hardened and lubricating zones

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