JPS55105315A - Manufacturing method of roll-shaped magnet - Google Patents

Manufacturing method of roll-shaped magnet

Info

Publication number
JPS55105315A
JPS55105315A JP1358579A JP1358579A JPS55105315A JP S55105315 A JPS55105315 A JP S55105315A JP 1358579 A JP1358579 A JP 1358579A JP 1358579 A JP1358579 A JP 1358579A JP S55105315 A JPS55105315 A JP S55105315A
Authority
JP
Japan
Prior art keywords
magnet
sector
magnetic
peripherical
periphery
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
JP1358579A
Other languages
Japanese (ja)
Other versions
JPS6028377B2 (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 JP1358579A priority Critical patent/JPS6028377B2/en
Publication of JPS55105315A publication Critical patent/JPS55105315A/en
Publication of JPS6028377B2 publication Critical patent/JPS6028377B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To obtain a magnet with magnetic poles in peripherical surface by applying magnetic field to arrange radially ferromagnetic axes around magnetic pole, when isotropic sintered ferrites are formed around the periphery of shaft and charged.
CONSTITUTION: An isotropic sintered ferrite 2 is wound around shaft 1 in roll-shape and is charged, and a roll-shaped magnet used to electrophotographic duplicator, etc. is made. Metal molds is used consisting of the magnetic material lower mold 10 that sector-like concave parts 11 are provided successively, magnetic material upper mold 12 that nearly wedge-shaped non-magnetic materials 13 are provided with under portion at regular intervals and sector peripherical surface is formed, and side molds 14, 15 that face each other across 10, 12. Coils 16, 17 are wound up the sides of upper mold 10 and under mold 12 respectively. In this constitution, when outer peripherical parts o of sector-like space are added up, they make outer periphery of magnet 2 and when inner peripherical parts q of sector-like space are added up, they make inner periphery of magnet 2. Magnetic force of periphery of magnet 2 is strengthened by charging used these kinds of metal molds.
COPYRIGHT: (C)1980,JPO&Japio
JP1358579A 1979-02-08 1979-02-08 Manufacturing method for rolled magnets Expired JPS6028377B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1358579A JPS6028377B2 (en) 1979-02-08 1979-02-08 Manufacturing method for rolled magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1358579A JPS6028377B2 (en) 1979-02-08 1979-02-08 Manufacturing method for rolled magnets

Publications (2)

Publication Number Publication Date
JPS55105315A true JPS55105315A (en) 1980-08-12
JPS6028377B2 JPS6028377B2 (en) 1985-07-04

Family

ID=11837254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1358579A Expired JPS6028377B2 (en) 1979-02-08 1979-02-08 Manufacturing method for rolled magnets

Country Status (1)

Country Link
JP (1) JPS6028377B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654015A (en) * 1979-08-03 1981-05-13 Statni Vyzkumny Ustav Material Method of manufacturing anisotropic permanent magnet
JPS56108207A (en) * 1980-01-31 1981-08-27 Fuji Xerox Co Ltd Magnetic roll and manufacture thereof
JPS57130407A (en) * 1981-02-06 1982-08-12 Daido Steel Co Ltd Cylindrical anisotropic resin magnet
JPS58218108A (en) * 1982-06-14 1983-12-19 Sumitomo Bakelite Co Ltd Manufacture of multi-pole plastic magnet
JPS60124812A (en) * 1983-12-09 1985-07-03 Seiko Epson Corp Manufacture of permanent magnet
JPS61115316A (en) * 1984-11-12 1986-06-02 Tdk Corp Magnet manufacturing die
JPS62129563U (en) * 1986-02-10 1987-08-15

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654015A (en) * 1979-08-03 1981-05-13 Statni Vyzkumny Ustav Material Method of manufacturing anisotropic permanent magnet
JPS56108207A (en) * 1980-01-31 1981-08-27 Fuji Xerox Co Ltd Magnetic roll and manufacture thereof
JPS6341203B2 (en) * 1980-01-31 1988-08-16 Fuji Xerox Co Ltd
JPS57130407A (en) * 1981-02-06 1982-08-12 Daido Steel Co Ltd Cylindrical anisotropic resin magnet
JPS58218108A (en) * 1982-06-14 1983-12-19 Sumitomo Bakelite Co Ltd Manufacture of multi-pole plastic magnet
JPS60124812A (en) * 1983-12-09 1985-07-03 Seiko Epson Corp Manufacture of permanent magnet
JPH0518243B2 (en) * 1983-12-09 1993-03-11 Seiko Epson Corp
JPS61115316A (en) * 1984-11-12 1986-06-02 Tdk Corp Magnet manufacturing die
JPS62129563U (en) * 1986-02-10 1987-08-15

Also Published As

Publication number Publication date
JPS6028377B2 (en) 1985-07-04

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