JPS5446540A - Production of magnetic head - Google Patents
Production of magnetic headInfo
- Publication number
- JPS5446540A JPS5446540A JP11351877A JP11351877A JPS5446540A JP S5446540 A JPS5446540 A JP S5446540A JP 11351877 A JP11351877 A JP 11351877A JP 11351877 A JP11351877 A JP 11351877A JP S5446540 A JPS5446540 A JP S5446540A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- ferrite
- abutting surfaces
- magnetic
- blocks
- 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
Landscapes
- Magnetic Heads (AREA)
Abstract
PURPOSE: To produce a magnetic head of high density and performance by arranging comples blocks of firrite and glass in a manner to face at their convex glass and by effecting their joint such that their concave ferrite abutting surfaces have a preset gap length.
CONSTITUTION: A comb-shaped block 5 has its groove 10 molded with glass 11 so that the magnetic gap abutting surfaces 12 and the magnetic tape facing surfaces 13 are made smooth to have a finished mirror surface. The block 14 of ferrite and glass has its magnetic gap abutting surfaces 12 subjected to electrolytic etching treatment. If the electrolytic etching treatment is carried out in that way, the worked deteriorated layer duriing the mirror-surface finishing with a dismond paste such as a Lap Master can be eliminated. Since, in this instance, the glass 11 is left unetched, a step of 0.4 microns is formed between itself and an effective track forming ferrite surface 15. Two blocks 14 are prepared, and another block 18 is formed with a winding aperture 16 and a notch 17
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11351877A JPS5446540A (en) | 1977-09-20 | 1977-09-20 | Production of magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11351877A JPS5446540A (en) | 1977-09-20 | 1977-09-20 | Production of magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5446540A true JPS5446540A (en) | 1979-04-12 |
Family
ID=14614366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11351877A Pending JPS5446540A (en) | 1977-09-20 | 1977-09-20 | Production of magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5446540A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4927041A (en) * | 1972-07-09 | 1974-03-11 | ||
JPS5277714A (en) * | 1975-12-24 | 1977-06-30 | Ngk Insulators Ltd | Method of producing magnetic head core |
-
1977
- 1977-09-20 JP JP11351877A patent/JPS5446540A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4927041A (en) * | 1972-07-09 | 1974-03-11 | ||
JPS5277714A (en) * | 1975-12-24 | 1977-06-30 | Ngk Insulators Ltd | Method of producing magnetic head core |
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