JPS5483620A - Manufacture of oriented electrical steel sheet - Google Patents

Manufacture of oriented electrical steel sheet

Info

Publication number
JPS5483620A
JPS5483620A JP15121977A JP15121977A JPS5483620A JP S5483620 A JPS5483620 A JP S5483620A JP 15121977 A JP15121977 A JP 15121977A JP 15121977 A JP15121977 A JP 15121977A JP S5483620 A JPS5483620 A JP S5483620A
Authority
JP
Japan
Prior art keywords
sheet
oriented electrical
electrical steel
cooled
steel sheet
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
JP15121977A
Other languages
Japanese (ja)
Other versions
JPS5651216B2 (en
Inventor
Tadashi Ichiyama
Masato Koizumi
Tsuyoshi Kikuchi
Hisanobu Nakayama
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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP15121977A priority Critical patent/JPS5651216B2/ja
Publication of JPS5483620A publication Critical patent/JPS5483620A/en
Publication of JPS5651216B2 publication Critical patent/JPS5651216B2/ja
Expired legal-status Critical Current

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, e.g. BY DECARBURISATION OR TEMPERING
    • 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

Abstract

PURPOSE:To manufacture an oriented electrical steel sheet by subjecting a silicon steel contg. Si; 2.5-4.5 % to heat treatment, precipitation treatment and rolling under specific conditions. CONSTITUTION:A silicon steel contg. C; 0.03-0.10 %, Si; 2.5-4.5 %, Mn; 0.03-0.12 %, S; 0.01-0.04 %, acid sol. Al<0.02 % and N<50 ppm is poured into an ingot case. The resulting ingot is cooled so that the solidification cooling rate at the central part becomes above 1 deg.C/sec. The solidified ingot is continuously cooled to 600 deg.C at a cooling rate above 0.05 deg.C/sec, reheated to 1000 deg.C, held for 30 min in a furnace, and immediately hot rolled to a 3 mm thick sheet. The sheet is then held for 10 min in a furnace of 900-1200 deg.C and cooled with warm water to carry out precipitation treatment, followed by primary cold rolling at a reduction ratio of 65 %, secondary cold rolling at a reduction ratio of 71 %, process annealing at 850 deg.C, and finish rolling to 0.3 mm thickness. The finish rolled sheet is decarburization annealed, coated with MgO, and hot annealed in a hydrogen atmosphere of 1150 deg.C to give an oriented electrical steel sheet.
JP15121977A 1977-12-17 1977-12-17 Expired JPS5651216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15121977A JPS5651216B2 (en) 1977-12-17 1977-12-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15121977A JPS5651216B2 (en) 1977-12-17 1977-12-17

Publications (2)

Publication Number Publication Date
JPS5483620A true JPS5483620A (en) 1979-07-03
JPS5651216B2 JPS5651216B2 (en) 1981-12-03

Family

ID=15513841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15121977A Expired JPS5651216B2 (en) 1977-12-17 1977-12-17

Country Status (1)

Country Link
JP (1) JPS5651216B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61238939A (en) * 1985-04-15 1986-10-24 Kawasaki Steel Corp Silicon steel sheet excelling in high-frequency characteristic and its production
KR100501005B1 (en) * 2000-12-08 2005-07-18 주식회사 포스코 A method for manufacturing grain oriented electrical steel sheet
CN108277423A (en) * 2017-01-05 2018-07-13 鞍钢股份有限公司 A kind of production method of intermediate frequency magnetic screen silicon steel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284268B1 (en) * 1996-08-30 1998-05-14 Acciai Speciali Terni Spa PROCEDURE FOR THE PRODUCTION OF GRAIN ORIENTED MAGNETIC SHEETS, WITH HIGH MAGNETIC CHARACTERISTICS, STARTING FROM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61238939A (en) * 1985-04-15 1986-10-24 Kawasaki Steel Corp Silicon steel sheet excelling in high-frequency characteristic and its production
JPH0542496B2 (en) * 1985-04-15 1993-06-28 Kawasaki Steel Co
KR100501005B1 (en) * 2000-12-08 2005-07-18 주식회사 포스코 A method for manufacturing grain oriented electrical steel sheet
CN108277423A (en) * 2017-01-05 2018-07-13 鞍钢股份有限公司 A kind of production method of intermediate frequency magnetic screen silicon steel

Also Published As

Publication number Publication date
JPS5651216B2 (en) 1981-12-03

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