KR910009025B1 - 복합형 자기 헤드용 코어의 제조법 - Google Patents
복합형 자기 헤드용 코어의 제조법 Download PDFInfo
- Publication number
- KR910009025B1 KR910009025B1 KR1019850000091A KR850000091A KR910009025B1 KR 910009025 B1 KR910009025 B1 KR 910009025B1 KR 1019850000091 A KR1019850000091 A KR 1019850000091A KR 850000091 A KR850000091 A KR 850000091A KR 910009025 B1 KR910009025 B1 KR 910009025B1
- Authority
- KR
- South Korea
- Prior art keywords
- ferrite
- core
- magnetic
- glass
- structures
- 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
- 230000005291 magnetic effect Effects 0.000 title claims description 95
- 239000002131 composite material Substances 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229910000859 α-Fe Inorganic materials 0.000 claims description 220
- 239000011521 glass Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 14
- 238000005304 joining Methods 0.000 claims description 12
- 238000003746 solid phase reaction Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000010671 solid-state reaction Methods 0.000 claims 1
- 239000011162 core material Substances 0.000 description 125
- 238000010438 heat treatment Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- -1 inorganic acid salt Chemical class 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/23—Gap features
- G11B5/232—Manufacture of gap
-
- 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
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59005204A JPS60150215A (ja) | 1984-01-14 | 1984-01-14 | 複合型磁気ヘツド用コアの製造法 |
JP59-5204 | 1984-01-14 | ||
JP5204 | 1984-01-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR850005671A KR850005671A (ko) | 1985-08-28 |
KR910009025B1 true KR910009025B1 (ko) | 1991-10-28 |
Family
ID=11604662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850000091A Expired KR910009025B1 (ko) | 1984-01-14 | 1985-01-09 | 복합형 자기 헤드용 코어의 제조법 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS60150215A (enrdf_load_stackoverflow) |
KR (1) | KR910009025B1 (enrdf_load_stackoverflow) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711018A (en) * | 1984-01-14 | 1987-12-08 | Ngk Insulators, Ltd. | Method of manufacturing a magnetic head core |
JPS62241116A (ja) * | 1986-04-14 | 1987-10-21 | Mitsubishi Electric Corp | 磁気ヘツドの製造方法 |
JPS637504A (ja) * | 1986-06-27 | 1988-01-13 | Nec Kansai Ltd | 磁気ヘツドコアの接合方法 |
JPS63200308A (ja) * | 1987-02-13 | 1988-08-18 | Nippon Chemicon Corp | 磁気ヘツド用コアおよびそのコアピ−ス並びにこれらの加工方法 |
JPH0638003U (ja) * | 1992-10-01 | 1994-05-20 | ティアック株式会社 | 磁気ヘッド |
JPH06231419A (ja) * | 1993-01-29 | 1994-08-19 | Victor Co Of Japan Ltd | 磁気ヘッド |
-
1984
- 1984-01-14 JP JP59005204A patent/JPS60150215A/ja active Granted
-
1985
- 1985-01-09 KR KR1019850000091A patent/KR910009025B1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH0247002B2 (enrdf_load_stackoverflow) | 1990-10-18 |
KR850005671A (ko) | 1985-08-28 |
JPS60150215A (ja) | 1985-08-07 |
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Legal Events
Date | Code | Title | Description |
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PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19850109 |
|
PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19881028 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19850109 Comment text: Patent Application |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19910930 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19920127 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19920227 Patent event code: PR07011E01D |
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PR1002 | Payment of registration fee |
Payment date: 19920227 End annual number: 3 Start annual number: 1 |
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Payment date: 19930329 Start annual number: 4 End annual number: 6 |
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PR1001 | Payment of annual fee |
Payment date: 19970820 Start annual number: 7 End annual number: 7 |
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PR1001 | Payment of annual fee |
Payment date: 19980928 Start annual number: 8 End annual number: 8 |
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FPAY | Annual fee payment |
Payment date: 20040913 Year of fee payment: 14 |
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PR1001 | Payment of annual fee |
Payment date: 20040913 Start annual number: 14 End annual number: 14 |
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EXPY | Expiration of term | ||
PC1801 | Expiration of term |