JPS5796838A - Manufacture of rubber magnet - Google Patents

Manufacture of rubber magnet

Info

Publication number
JPS5796838A
JPS5796838A JP17272880A JP17272880A JPS5796838A JP S5796838 A JPS5796838 A JP S5796838A JP 17272880 A JP17272880 A JP 17272880A JP 17272880 A JP17272880 A JP 17272880A JP S5796838 A JPS5796838 A JP S5796838A
Authority
JP
Japan
Prior art keywords
magnetic material
molding
rubber
rubber magnet
kneaded
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
JP17272880A
Other languages
Japanese (ja)
Inventor
Masamichi Miyazaki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17272880A priority Critical patent/JPS5796838A/en
Publication of JPS5796838A publication Critical patent/JPS5796838A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE: To obtain a rubber magnet with a limited consumption of thermal energy and an improved working environment by loading a mold made of non- magnetic material with a kneaded mixture of a rubber blend and a powdered magnetic material, which is vulcanized and molded by heating under a magnetic induction and magnetized.
CONSTITUTION: A raw rubber 1, a powdered magnetic material 2 and a rubber blend 3 are charged into a kneader 4 to form a kneaded rubber magnet mixture 5. Then, the kneaded product 5 is charged into a mold comprising an upper die 7 and a lower die 8 both made of a non-magnetic material and pressurized with both dies matching each other. Upon the actuation of a magnetic induction heater 9 simultaneously with the compression, the powdered magnetic material in the kneaded product 5 generates heat under an induction heating, which is transmitted to heat the kneaded product 5 as a whole to promote the vulcanization. Thus, the molding is completed. With the completion of the vulcanizing molding, the operation of the magnetic induction heater 9 is stopped and the molding is taken out of the mold. Then, the molding 5' is magnetized with a magnetizer 10 to make a rubber magnet.
COPYRIGHT: (C)1982,JPO&Japio
JP17272880A 1980-12-08 1980-12-08 Manufacture of rubber magnet Pending JPS5796838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17272880A JPS5796838A (en) 1980-12-08 1980-12-08 Manufacture of rubber magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17272880A JPS5796838A (en) 1980-12-08 1980-12-08 Manufacture of rubber magnet

Publications (1)

Publication Number Publication Date
JPS5796838A true JPS5796838A (en) 1982-06-16

Family

ID=15947222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17272880A Pending JPS5796838A (en) 1980-12-08 1980-12-08 Manufacture of rubber magnet

Country Status (1)

Country Link
JP (1) JPS5796838A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127727A (en) * 1983-01-07 1984-07-23 Sekisui Chem Co Ltd Manufacture of magnetic film
WO2003063548A3 (en) * 2001-07-03 2004-02-26 Tribond Inc Induction heating using dual susceptors
JP2006080127A (en) * 2004-09-07 2006-03-23 Yonezawa Densen Kk Method for manufacturing coil element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127727A (en) * 1983-01-07 1984-07-23 Sekisui Chem Co Ltd Manufacture of magnetic film
WO2003063548A3 (en) * 2001-07-03 2004-02-26 Tribond Inc Induction heating using dual susceptors
JP2006080127A (en) * 2004-09-07 2006-03-23 Yonezawa Densen Kk Method for manufacturing coil element

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