JPS559486A - Method of making roll-shaped magnet - Google Patents

Method of making roll-shaped magnet

Info

Publication number
JPS559486A
JPS559486A JP8337278A JP8337278A JPS559486A JP S559486 A JPS559486 A JP S559486A JP 8337278 A JP8337278 A JP 8337278A JP 8337278 A JP8337278 A JP 8337278A JP S559486 A JPS559486 A JP S559486A
Authority
JP
Japan
Prior art keywords
sheets
wedge
laminate
projections
particles
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
JP8337278A
Other languages
Japanese (ja)
Other versions
JPS6025015B2 (en
Inventor
Koji Koetani
Noriyuki Miyoshi
Kanji Machida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8337278A priority Critical patent/JPS6025015B2/en
Publication of JPS559486A publication Critical patent/JPS559486A/en
Publication of JPS6025015B2 publication Critical patent/JPS6025015B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To improve a magnetization effect for a roll magnet by mixing ferrite particles, binder rubber, etc., rolling the mixture to form a sheet, and laminating the sheets with upper and lower dies having wedge concavities and projections respectively for changing the magnetic orientation in the laminate. CONSTITUTION:The mixture of ferrite flake particles 5 treated magnetoanisotropically and the rubber or synthetic resin medium 6 is rolled with rolling mill to form a magnet sheet 8 having the particles oriented in the rolling direction. Sheets 8 thus formed is superposed upon each other by the desired number of sheets, the super-posed sheets are put between the lower die 11 having several wedge projections different from one another in height and the upper die 13 having wedge concavities 12 corresponding to the projections 10, and pressed thereby to obtain a laminate 9. The laminate 9 thus provided with the wedge cuts 14 is wound around a shaft to form a roll. In this manner the magnetic orientation varies up to about 90 deg. successively, the magnetic flux is liable to pass through the magnetized medium resulting in strong magnetic force.
JP8337278A 1978-07-07 1978-07-07 Manufacturing method for rolled magnets Expired JPS6025015B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8337278A JPS6025015B2 (en) 1978-07-07 1978-07-07 Manufacturing method for rolled magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8337278A JPS6025015B2 (en) 1978-07-07 1978-07-07 Manufacturing method for rolled magnets

Publications (2)

Publication Number Publication Date
JPS559486A true JPS559486A (en) 1980-01-23
JPS6025015B2 JPS6025015B2 (en) 1985-06-15

Family

ID=13800583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8337278A Expired JPS6025015B2 (en) 1978-07-07 1978-07-07 Manufacturing method for rolled magnets

Country Status (1)

Country Link
JP (1) JPS6025015B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61144008A (en) * 1984-12-18 1986-07-01 Matsushita Electric Ind Co Ltd Manufacture of magnet rol
JPH02178411A (en) * 1988-12-28 1990-07-11 Kokuritsu Kogai Kenkyusho Forming method for aquatic shelter and device therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61144008A (en) * 1984-12-18 1986-07-01 Matsushita Electric Ind Co Ltd Manufacture of magnet rol
JPH02178411A (en) * 1988-12-28 1990-07-11 Kokuritsu Kogai Kenkyusho Forming method for aquatic shelter and device therefor

Also Published As

Publication number Publication date
JPS6025015B2 (en) 1985-06-15

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