JPS5471397A - Preparation of roll magnet - Google Patents

Preparation of roll magnet

Info

Publication number
JPS5471397A
JPS5471397A JP13858377A JP13858377A JPS5471397A JP S5471397 A JPS5471397 A JP S5471397A JP 13858377 A JP13858377 A JP 13858377A JP 13858377 A JP13858377 A JP 13858377A JP S5471397 A JPS5471397 A JP S5471397A
Authority
JP
Japan
Prior art keywords
winding
magnetic
roll
sheet
blocks
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
JP13858377A
Other languages
Japanese (ja)
Inventor
Koji Koetani
Kanji Machida
Noriyuki Miyoshi
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 JP13858377A priority Critical patent/JPS5471397A/en
Publication of JPS5471397A publication Critical patent/JPS5471397A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To change the inclination of magnetic orientation and to improve magnetic flux density by putting rolls side by side which are formed by winding magnetic sheet meterial with magnetic anisotropy and then winding it to form a roll.
CONSTITUTION: Preparing anisotropic magnetic sheet material which is ferromagnetic in the thick direction by rolling a mixture of magnetic anisotropy treated scaly ferrite particles and rubber or synthetic resin to orient the ferrite particles in the rolling direction of the sheet, winding the sheet to form a roll, and then pressing a plurality of rolls between molds having a plurality of trapezoid recesses side by side to obtain hexagonal blocks 13. Then cutting off the blocks 13 into upper part and lower part, winding it on a shaft 10, fitting magnetization yokes on the centers of bases of cut blocks 13, and magnetizing to obtain a roll magnet.
COPYRIGHT: (C)1979,JPO&Japio
JP13858377A 1977-11-17 1977-11-17 Preparation of roll magnet Pending JPS5471397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13858377A JPS5471397A (en) 1977-11-17 1977-11-17 Preparation of roll magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13858377A JPS5471397A (en) 1977-11-17 1977-11-17 Preparation of roll magnet

Publications (1)

Publication Number Publication Date
JPS5471397A true JPS5471397A (en) 1979-06-07

Family

ID=15225502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13858377A Pending JPS5471397A (en) 1977-11-17 1977-11-17 Preparation of roll magnet

Country Status (1)

Country Link
JP (1) JPS5471397A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61204910A (en) * 1985-03-08 1986-09-11 Dai Ichi Seiko Co Ltd Magnet roll for magnetic brush development of dry electrophotography device and apparatus for manufacturing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61204910A (en) * 1985-03-08 1986-09-11 Dai Ichi Seiko Co Ltd Magnet roll for magnetic brush development of dry electrophotography device and apparatus for manufacturing same

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