JPS5629822A - Manufacture for magnetic core - Google Patents

Manufacture for magnetic core

Info

Publication number
JPS5629822A
JPS5629822A JP10224179A JP10224179A JPS5629822A JP S5629822 A JPS5629822 A JP S5629822A JP 10224179 A JP10224179 A JP 10224179A JP 10224179 A JP10224179 A JP 10224179A JP S5629822 A JPS5629822 A JP S5629822A
Authority
JP
Japan
Prior art keywords
groove
forming part
gap
leaving
gap forming
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
JP10224179A
Other languages
Japanese (ja)
Inventor
Takaaki Shirokura
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10224179A priority Critical patent/JPS5629822A/en
Publication of JPS5629822A publication Critical patent/JPS5629822A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the manufacturing process and to increase the yield by manufacturing the core block incorporating the magnetic circuit and the gap forming part, forming the goove leaving the both ends of the gap forming part and melting glass in the groove.
CONSTITUTION: The block 12 where the magnetic circuit 10 and the gap forming part 11 are incorporated is formed. In this case, the notch 14 is formed with machine processing by leaving the size 15 (e.g., about 30μm) slightly greater than the depth of gap. Further, the groove 16 is formed with machine or laser processing by leaving the width 17 at both ends, and after giving molten glass 18 to the groove 16, the gap forming part 11 is polished to specify the depth of gap 19. Finally, this block is sliced orthogonally with the groove 16 to obtain the magnetic core. Thus, the manufacturing process is simplified, the accuracy of size is increased and the yield can be increased.
COPYRIGHT: (C)1981,JPO&Japio
JP10224179A 1979-08-13 1979-08-13 Manufacture for magnetic core Pending JPS5629822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10224179A JPS5629822A (en) 1979-08-13 1979-08-13 Manufacture for magnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10224179A JPS5629822A (en) 1979-08-13 1979-08-13 Manufacture for magnetic core

Publications (1)

Publication Number Publication Date
JPS5629822A true JPS5629822A (en) 1981-03-25

Family

ID=14322123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10224179A Pending JPS5629822A (en) 1979-08-13 1979-08-13 Manufacture for magnetic core

Country Status (1)

Country Link
JP (1) JPS5629822A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215018A (en) * 1983-05-21 1984-12-04 Tohoku Metal Ind Ltd Manufacture of magnetic head
JPS6139207A (en) * 1984-07-28 1986-02-25 Victor Co Of Japan Ltd Forming method of magnetic gap of magnetic head
EP0221583A2 (en) * 1985-09-30 1987-05-13 Koninklijke Philips Electronics N.V. Method of manufacturing magnetic head cores
EP0623917A2 (en) * 1993-05-03 1994-11-09 Philips Patentverwaltung GmbH Magnetic tape apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215018A (en) * 1983-05-21 1984-12-04 Tohoku Metal Ind Ltd Manufacture of magnetic head
JPH0462126B2 (en) * 1983-05-21 1992-10-05 Tokin Corp
JPS6139207A (en) * 1984-07-28 1986-02-25 Victor Co Of Japan Ltd Forming method of magnetic gap of magnetic head
EP0221583A2 (en) * 1985-09-30 1987-05-13 Koninklijke Philips Electronics N.V. Method of manufacturing magnetic head cores
EP0623917A2 (en) * 1993-05-03 1994-11-09 Philips Patentverwaltung GmbH Magnetic tape apparatus
EP0623917A3 (en) * 1993-05-03 1995-04-12 Philips Patentverwaltung Magnetic tape apparatus.

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