JPS56163520A - Production of magnetic core head - Google Patents

Production of magnetic core head

Info

Publication number
JPS56163520A
JPS56163520A JP9440480A JP9440480A JPS56163520A JP S56163520 A JPS56163520 A JP S56163520A JP 9440480 A JP9440480 A JP 9440480A JP 9440480 A JP9440480 A JP 9440480A JP S56163520 A JPS56163520 A JP S56163520A
Authority
JP
Japan
Prior art keywords
magnetic head
core
welded part
polished
measurements
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
Application number
JP9440480A
Other languages
Japanese (ja)
Other versions
JPS6356603B2 (en
Inventor
Norio Kawatani
Masashi Eguchi
Kisho Ono
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP9440480A priority Critical patent/JPS56163520A/en
Publication of JPS56163520A publication Critical patent/JPS56163520A/en
Publication of JPS6356603B2 publication Critical patent/JPS6356603B2/ja
Granted legal-status Critical Current

Links

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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • G11B5/1475—Assembling or shaping of elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To obtain a half of the magnetic head core with which the deterioration is reduced for the magnetic head characteristics and the accuracy of measurements is increased, by providing an area of the welded part of the butting surface of a laminated core half body. CONSTITUTION:A welded part 4 is provided to the outside of a side foot part 3a for a laminated core half body 3 made by laminating plural sheets of a channel- shaped core thin piece 1 composed of a material having high magnetic permeability such as a permalloy or the like. Another welded part 5 is provided on a butting surface 3b where the core bodies 3 are butted to each other and finally at the assembling time of a magnetic head. As the parts 4 and 5 are provided at two areas, the problems can be solved for both the mechanical strength and the accuracy of measurements of the core half bodies 3 and 3. The surface 3b is polished when the magnetic head is assembled, and at the same time the part 5 is also polished and reduced or removed to eliminate the effect to the magnetic head characteristics.
JP9440480A 1980-07-10 1980-07-10 Production of magnetic core head Granted JPS56163520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9440480A JPS56163520A (en) 1980-07-10 1980-07-10 Production of magnetic core head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9440480A JPS56163520A (en) 1980-07-10 1980-07-10 Production of magnetic core head

Publications (2)

Publication Number Publication Date
JPS56163520A true JPS56163520A (en) 1981-12-16
JPS6356603B2 JPS6356603B2 (en) 1988-11-08

Family

ID=14109305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9440480A Granted JPS56163520A (en) 1980-07-10 1980-07-10 Production of magnetic core head

Country Status (1)

Country Link
JP (1) JPS56163520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640871A (en) * 1984-09-12 1987-02-03 Sony Corporation Magnetic material having high permeability in the high frequency range

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143515U (en) * 1974-05-14 1975-11-27
JPS5536446U (en) * 1978-08-30 1980-03-08

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536446B2 (en) * 1973-02-23 1980-09-20

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143515U (en) * 1974-05-14 1975-11-27
JPS5536446U (en) * 1978-08-30 1980-03-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640871A (en) * 1984-09-12 1987-02-03 Sony Corporation Magnetic material having high permeability in the high frequency range

Also Published As

Publication number Publication date
JPS6356603B2 (en) 1988-11-08

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