JPS55142409A - Magnetic head - Google Patents
Magnetic headInfo
- 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
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
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)
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 |
-
1979
- 1979-04-19 JP JP4840979A patent/JPS55142409A/en active Pending
Cited By (1)
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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