JPS5312740A - Liquid for electrolytically etching ferrite - Google Patents
Liquid for electrolytically etching ferriteInfo
- Publication number
- JPS5312740A JPS5312740A JP8859076A JP8859076A JPS5312740A JP S5312740 A JPS5312740 A JP S5312740A JP 8859076 A JP8859076 A JP 8859076A JP 8859076 A JP8859076 A JP 8859076A JP S5312740 A JPS5312740 A JP S5312740A
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- liquid
- electrolytically etching
- electrolytically
- etching
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Heads (AREA)
- ing And Chemical Polishing (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8859076A JPS5312740A (en) | 1976-07-23 | 1976-07-23 | Liquid for electrolytically etching ferrite |
DE19772733304 DE2733304C2 (en) | 1976-07-23 | 1977-07-21 | Method of manufacturing a magnetic head from two ferrite blocks |
FR7722660A FR2359195A1 (en) | 1976-07-23 | 1977-07-22 | Etchant for etching magnetic head ferrite electrolytically - based on sulphuric acid and water for smooth deep etching |
US05/923,403 US4169026A (en) | 1976-07-23 | 1978-07-10 | Etchant for electrolytic etching of a ferrite for a magnetic head and method of producing a magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8859076A JPS5312740A (en) | 1976-07-23 | 1976-07-23 | Liquid for electrolytically etching ferrite |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5312740A true JPS5312740A (en) | 1978-02-04 |
JPS5440381B2 JPS5440381B2 (en) | 1979-12-03 |
Family
ID=13947039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8859076A Granted JPS5312740A (en) | 1976-07-23 | 1976-07-23 | Liquid for electrolytically etching ferrite |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5312740A (en) |
DE (1) | DE2733304C2 (en) |
FR (1) | FR2359195A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047725B2 (en) * | 1977-06-14 | 1985-10-23 | ソニー株式会社 | Ferrite processing method |
JPS59207415A (en) * | 1983-05-11 | 1984-11-24 | Hitachi Ltd | Compound magnetic head and its preparation |
DE3319437C2 (en) * | 1983-05-28 | 1985-04-04 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Magnetic head and process for its manufacture |
SE9101469D0 (en) * | 1991-05-15 | 1991-05-15 | Sandvik Ab | ETSMETOD |
SE511209C2 (en) * | 1994-12-12 | 1999-08-23 | Sandvik Ab | Method for obtaining well-defined oak gradients on inserts with electropolishing technology |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3479738A (en) * | 1967-05-23 | 1969-11-25 | Rca Corp | Magnetic heads |
-
1976
- 1976-07-23 JP JP8859076A patent/JPS5312740A/en active Granted
-
1977
- 1977-07-21 DE DE19772733304 patent/DE2733304C2/en not_active Expired
- 1977-07-22 FR FR7722660A patent/FR2359195A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2359195B1 (en) | 1981-03-06 |
FR2359195A1 (en) | 1978-02-17 |
DE2733304A1 (en) | 1978-01-26 |
JPS5440381B2 (en) | 1979-12-03 |
DE2733304C2 (en) | 1984-12-20 |
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