JPH0152808B2 - - Google Patents
Info
- Publication number
- JPH0152808B2 JPH0152808B2 JP56017247A JP1724781A JPH0152808B2 JP H0152808 B2 JPH0152808 B2 JP H0152808B2 JP 56017247 A JP56017247 A JP 56017247A JP 1724781 A JP1724781 A JP 1724781A JP H0152808 B2 JPH0152808 B2 JP H0152808B2
- Authority
- JP
- Japan
- Prior art keywords
- sio
- gap forming
- glass
- core
- groove
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 48
- 238000003466 welding Methods 0.000 claims description 24
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000004544 sputter deposition Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 13
- 239000010408 film Substances 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000005388 borosilicate glass Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
- G11B5/1335—Assembling or shaping of elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1724781A JPS57133515A (en) | 1981-02-06 | 1981-02-06 | Production of magnetic head core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1724781A JPS57133515A (en) | 1981-02-06 | 1981-02-06 | Production of magnetic head core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57133515A JPS57133515A (en) | 1982-08-18 |
| JPH0152808B2 true JPH0152808B2 (de) | 1989-11-10 |
Family
ID=11938615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1724781A Granted JPS57133515A (en) | 1981-02-06 | 1981-02-06 | Production of magnetic head core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57133515A (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8202059A (nl) * | 1982-05-19 | 1983-12-16 | Philips Nv | Glas gekitte magneetkop en werkwijze voor zijn vervaardiging. |
| JPS59193516A (ja) * | 1983-04-19 | 1984-11-02 | Pioneer Electronic Corp | 磁気ヘツド |
| JPS59231714A (ja) * | 1983-06-13 | 1984-12-26 | Matsushita Electric Ind Co Ltd | 磁気ヘツド |
| JPS6083205A (ja) * | 1983-10-12 | 1985-05-11 | Matsushita Electric Ind Co Ltd | 磁気ヘツド |
| JPS60231905A (ja) * | 1984-04-30 | 1985-11-18 | Nec Kansai Ltd | 磁気ヘツドの製造方法 |
| JPS61104309A (ja) * | 1984-10-24 | 1986-05-22 | Canon Electronics Inc | 磁気ヘツドの製造方法 |
| JPS61190704A (ja) * | 1985-02-20 | 1986-08-25 | Mitsubishi Electric Corp | 磁気ヘツドの製造方法 |
| JP2759271B2 (ja) * | 1989-01-17 | 1998-05-28 | 日本ビクター株式会社 | 磁気ヘッドとその製造方法 |
| JPH04123302A (ja) * | 1990-09-13 | 1992-04-23 | Minebea Co Ltd | 磁気ヘッド |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108409A (en) * | 1977-03-03 | 1978-09-21 | Matsushita Electric Ind Co Ltd | Magnetic head and preparation thereof |
-
1981
- 1981-02-06 JP JP1724781A patent/JPS57133515A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108409A (en) * | 1977-03-03 | 1978-09-21 | Matsushita Electric Ind Co Ltd | Magnetic head and preparation thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57133515A (en) | 1982-08-18 |
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