JPS57138022A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS57138022A JPS57138022A JP56023759A JP2375981A JPS57138022A JP S57138022 A JPS57138022 A JP S57138022A JP 56023759 A JP56023759 A JP 56023759A JP 2375981 A JP2375981 A JP 2375981A JP S57138022 A JPS57138022 A JP S57138022A
- Authority
- JP
- Japan
- Prior art keywords
- core
- thin plate
- thickness
- rolled
- finished
- 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
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
- G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
- G11B5/1475—Assembling or shaping of elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE:To achieve low cost and greater wear resistant head, by using a clad member which is rolled for a nonmagnetic material inserted between core elements constituting each layer of a multilayered core. CONSTITUTION:A clad member constituting a core element 5 is made that, for example, an Al thin plate 6 with a pescribed thickness is used as a core member, a permalloy thin plate 7 with a prescribed thickness is laminated and rolled on both the surfaces of the core member, and finished into the 0.2mm. thickness through unification. In this case, the Amm. is finished to 5mu in thickness. This three-layered clad member is punched into the shape of a core and magnetic-annealed, then the Al thin plate has a greater affinity with O2. It is oxidized to be a ceramic (Al2O3) thin plate 6'. Thus, the thin plate 6' has greater hardness and excellent electric insulation. Next, the three core elements 5 are overlapped and bonded with an epoxy resin 3, then a core half 4 is obtained. After winding a coil on the half 4, the half is butted with another core half 4, and contained in a shield case. Thus, a magnetic head is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56023759A JPS57138022A (en) | 1981-02-20 | 1981-02-20 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56023759A JPS57138022A (en) | 1981-02-20 | 1981-02-20 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57138022A true JPS57138022A (en) | 1982-08-26 |
Family
ID=12119254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56023759A Pending JPS57138022A (en) | 1981-02-20 | 1981-02-20 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57138022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123762A (en) * | 1982-12-28 | 1984-07-17 | Toshiba Corp | Laminated material for magnetic head |
| JPS61261807A (en) * | 1985-05-16 | 1986-11-19 | Toshiba Corp | Magnetic head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502198A (en) * | 1973-05-03 | 1975-01-10 | ||
| JPS5076595A (en) * | 1973-10-12 | 1975-06-23 |
-
1981
- 1981-02-20 JP JP56023759A patent/JPS57138022A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502198A (en) * | 1973-05-03 | 1975-01-10 | ||
| JPS5076595A (en) * | 1973-10-12 | 1975-06-23 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123762A (en) * | 1982-12-28 | 1984-07-17 | Toshiba Corp | Laminated material for magnetic head |
| JPS61261807A (en) * | 1985-05-16 | 1986-11-19 | Toshiba Corp | Magnetic head |
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