JPS556818A - Method of producing slotted core - Google Patents

Method of producing slotted core

Info

Publication number
JPS556818A
JPS556818A JP7852878A JP7852878A JPS556818A JP S556818 A JPS556818 A JP S556818A JP 7852878 A JP7852878 A JP 7852878A JP 7852878 A JP7852878 A JP 7852878A JP S556818 A JPS556818 A JP S556818A
Authority
JP
Japan
Prior art keywords
projections
core
slots
eddy current
current loss
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
JP7852878A
Other languages
Japanese (ja)
Inventor
Masao Hiyane
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7852878A priority Critical patent/JPS556818A/en
Publication of JPS556818A publication Critical patent/JPS556818A/en
Pending legal-status Critical Current

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Landscapes

  • Electromagnets (AREA)

Abstract

PURPOSE: To facilitate the production of core for electromagnets with limited eddy current loss through reducing of slotted cup-shaped elements to a small diameter with a die.
CONSTITUTION: A flat plate with a proper thickness is punched and then, projections 4 are radially extended at an equi-space in the circumferential direction with an even with. The projections are bent to form projections 4'. In this manner, a cup-shaped cylindrical body having a plurality of slots is produced. Then, when the base product is pushed into a hole properly which is made smaller in the diameter than the outer diameter of the base product 7, the cylindrical portion thereof is reduced properly. Thus, an iron core 1 having finely reduced slots is yield. The core thus formed is so limited in the eddy current loss to increase the magnetic flux passing therethrough. It is easy to produce and ideal for massproduction.
COPYRIGHT: (C)1980,JPO&Japio
JP7852878A 1978-06-30 1978-06-30 Method of producing slotted core Pending JPS556818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7852878A JPS556818A (en) 1978-06-30 1978-06-30 Method of producing slotted core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7852878A JPS556818A (en) 1978-06-30 1978-06-30 Method of producing slotted core

Publications (1)

Publication Number Publication Date
JPS556818A true JPS556818A (en) 1980-01-18

Family

ID=13664410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7852878A Pending JPS556818A (en) 1978-06-30 1978-06-30 Method of producing slotted core

Country Status (1)

Country Link
JP (1) JPS556818A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019201479A1 (en) * 2018-04-20 2019-10-24 Federal-Mogul Valvetrain Gmbh Shaped magnetic core for an electromagnetic actuator, and method for producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019201479A1 (en) * 2018-04-20 2019-10-24 Federal-Mogul Valvetrain Gmbh Shaped magnetic core for an electromagnetic actuator, and method for producing same

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