JPS54124843A - Processing of ferrite - Google Patents

Processing of ferrite

Info

Publication number
JPS54124843A
JPS54124843A JP3249478A JP3249478A JPS54124843A JP S54124843 A JPS54124843 A JP S54124843A JP 3249478 A JP3249478 A JP 3249478A JP 3249478 A JP3249478 A JP 3249478A JP S54124843 A JPS54124843 A JP S54124843A
Authority
JP
Japan
Prior art keywords
end plate
ferrite
nozzle
voltage
etching liquor
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
Application number
JP3249478A
Other languages
Japanese (ja)
Inventor
Toru Hikichi
Tomio Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP3249478A priority Critical patent/JPS54124843A/en
Publication of JPS54124843A publication Critical patent/JPS54124843A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE: To permit the uniform formation of deep grooves with a highly accurate pattern by spraying an etching liquor while applying a voltage by using perforated electrolytic etching liquor supply nozzles as counter electrodes when grooving processing is made on ferrite magnetic head, etc.
CONSTITUTION: The nozzle 22 whose end plate 21 on the opened side provided with plural fine holes with equal intervals is provided, and the electrode 17 with the ferrite 15 to be processed is provided in parallel with the end plate 21. At least opened side end plate 21 of the nozzle 22 serves as the counter electrode 16 of a conductor, and a 3 to 1000 V voltage is continuously or intermittently applied between the nozzle end plate 21 as the positive pole and the ferrite 15 as the negative pole and 0.005 to 15 mole/1 of an electrolytic etching liquor, e.g., a phosphoric acid solution, is sprayed from the nozzle 20 in such a way that it flows continuously from the end plate 21 to the ferrite 15 for etching.
COPYRIGHT: (C)1979,JPO&Japio
JP3249478A 1978-03-22 1978-03-22 Processing of ferrite Pending JPS54124843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3249478A JPS54124843A (en) 1978-03-22 1978-03-22 Processing of ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3249478A JPS54124843A (en) 1978-03-22 1978-03-22 Processing of ferrite

Publications (1)

Publication Number Publication Date
JPS54124843A true JPS54124843A (en) 1979-09-28

Family

ID=12360537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3249478A Pending JPS54124843A (en) 1978-03-22 1978-03-22 Processing of ferrite

Country Status (1)

Country Link
JP (1) JPS54124843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006094657A1 (en) 2005-03-04 2006-09-14 Gebr. Schmid Gmbh & Co. Device and method for the etching of substrates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006094657A1 (en) 2005-03-04 2006-09-14 Gebr. Schmid Gmbh & Co. Device and method for the etching of substrates

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