JPH01159323A - Iron loss decreasing device for grain oriented electrical steel sheet - Google Patents

Iron loss decreasing device for grain oriented electrical steel sheet

Info

Publication number
JPH01159323A
JPH01159323A JP31744187A JP31744187A JPH01159323A JP H01159323 A JPH01159323 A JP H01159323A JP 31744187 A JP31744187 A JP 31744187A JP 31744187 A JP31744187 A JP 31744187A JP H01159323 A JPH01159323 A JP H01159323A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
steel sheet
oriented electrical
grain oriented
electrical steel
iron 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.)
Granted
Application number
JP31744187A
Other versions
JPH0660348B2 (en )
Inventor
Satoru Ide
Hiroshi Nishizaka
Akira Sakaida
Masahiro Yamamoto
Original Assignee
Nippon Steel Corp
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

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1294Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localized treatment

Abstract

PURPOSE:To form micro-linear strains and to easily decrease the iron loss of a grain oriented electrical steel sheet by pressing the entire surface of the steel sheet passing continuously over a receiving base by a metallic mold having many micro-tooth profiles. CONSTITUTION:The grain oriented electrical steel sheet 1 prior to or after finish annealing or the steel sheet subjected to an insulating film treatment after the finish annealing is passed over the receiving base 7 of a press body 2 in an arrow direction by feed rolls 8. The linear tooth profiles 4 consisting of a cemented carbide, ceramics, diamond, etc., are mounted to the metallic mold 3 provided nearly orthogonal with the passing direction and the steel sheet 1 is pressurized by a forward/backward driving device 6, by which the very small compressive linear strains by the tooth profiles 4 are formed in the thickness direction of the steel sheet 1 over the entire part in the transverse direction of the steel sheet. The iron loss of the grain oriented electrical steel sheet is thereby largely decreased.
JP31744187A 1987-12-17 1987-12-17 Iron loss reducing apparatus oriented electrical steel sheet Expired - Lifetime JPH0660348B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31744187A JPH0660348B2 (en) 1987-12-17 1987-12-17 Iron loss reducing apparatus oriented electrical steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31744187A JPH0660348B2 (en) 1987-12-17 1987-12-17 Iron loss reducing apparatus oriented electrical steel sheet

Publications (2)

Publication Number Publication Date
JPH01159323A true true JPH01159323A (en) 1989-06-22
JPH0660348B2 JPH0660348B2 (en) 1994-08-10

Family

ID=18088254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31744187A Expired - Lifetime JPH0660348B2 (en) 1987-12-17 1987-12-17 Iron loss reducing apparatus oriented electrical steel sheet

Country Status (1)

Country Link
JP (1) JPH0660348B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8517574B2 (en) 2010-04-30 2013-08-27 Sunonwealth Electric Machine Industry Co., Ltd. Lamp with air channel
WO2018016475A1 (en) * 2016-07-21 2018-01-25 株式会社デンソー Method for manufacturing core plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8517574B2 (en) 2010-04-30 2013-08-27 Sunonwealth Electric Machine Industry Co., Ltd. Lamp with air channel
US8974092B2 (en) 2010-04-30 2015-03-10 Sunonwealth Electric Machine Industry Co., Ltd. Lamp with air channel
WO2018016475A1 (en) * 2016-07-21 2018-01-25 株式会社デンソー Method for manufacturing core plate

Also Published As

Publication number Publication date Type
JPH0660348B2 (en) 1994-08-10 grant

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