JPS5747830A - Production of unidirectional electrical steel plate of superior watt loss - Google Patents

Production of unidirectional electrical steel plate of superior watt loss

Info

Publication number
JPS5747830A
JPS5747830A JP55120903A JP12090380A JPS5747830A JP S5747830 A JPS5747830 A JP S5747830A JP 55120903 A JP55120903 A JP 55120903A JP 12090380 A JP12090380 A JP 12090380A JP S5747830 A JPS5747830 A JP S5747830A
Authority
JP
Japan
Prior art keywords
annealing
plate
steel plate
unidirectional electrical
subjected
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
JP55120903A
Other languages
Japanese (ja)
Other versions
JPS5836048B2 (en
Inventor
Katsuro Kuroki
Osamu Tanaka
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.)
Nippon Steel Corp
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 JP55120903A priority Critical patent/JPS5836048B2/en
Publication of JPS5747830A publication Critical patent/JPS5747830A/en
Publication of JPS5836048B2 publication Critical patent/JPS5836048B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties

Abstract

PURPOSE:To make crystal grains smaller without degrading the directivity of a steel plate and produce a unidirectional electrical steel plate of low watt loss by hot rolling a steel ingot contg. C, Si and a sulfide or nitride as a primary recrystallization brain suppressing agent then subjecting the same to finish annealing in a gaseous H2 atmosphere included with a slight amount of O2. CONSTITUTION:A steel ingot or continuously cast slab contg. <=0.08% C, 2.5- 4.0% Si and a sulfide (e.g. MnS) or nitride (e.g. AlN) as a primary recrystallization suppressing agent is hot rolled. Next, the steel ingot or the like after the hot rolling is subjected to a hot rolled plate annealing and quenching process consisting of annealing at below 1,200 deg.C and a quenching process below 1,050 deg.C then to a cold rolling process of 70-90% drafts whereby it is made into product plate thickness, after which the plate is subjected to decarburization annealing by a known method. Next, an annealing separating agent is coated on this decarburization annealed plate, after which it is subjected to finish annealing in a gaseous H2 atmosphere included with 30-1,000ppm O2, whereby the intended unidirectional electrical steel plate is produced.
JP55120903A 1980-09-01 1980-09-01 Manufacturing method of unidirectional electrical steel sheet with excellent iron loss Expired JPS5836048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120903A JPS5836048B2 (en) 1980-09-01 1980-09-01 Manufacturing method of unidirectional electrical steel sheet with excellent iron loss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120903A JPS5836048B2 (en) 1980-09-01 1980-09-01 Manufacturing method of unidirectional electrical steel sheet with excellent iron loss

Publications (2)

Publication Number Publication Date
JPS5747830A true JPS5747830A (en) 1982-03-18
JPS5836048B2 JPS5836048B2 (en) 1983-08-06

Family

ID=14797842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120903A Expired JPS5836048B2 (en) 1980-09-01 1980-09-01 Manufacturing method of unidirectional electrical steel sheet with excellent iron loss

Country Status (1)

Country Link
JP (1) JPS5836048B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5996220A (en) * 1982-11-24 1984-06-02 Nippon Steel Corp Manufacture of unidirectional electrical steel sheet with superior iron loss
JPS59185725A (en) * 1983-04-07 1984-10-22 Nippon Steel Corp Production of grain-oriented electrical steel sheet having excellent magnetic characteristic
EP3633059A4 (en) * 2017-05-31 2020-04-29 JFE Steel Corporation Non-oriented electromagnetic steel sheet and production method therefor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598730U (en) * 1982-07-12 1984-01-20 日産自動車株式会社 Bonding structure between ceramic shaft and metal shaft
JPS6061142U (en) * 1983-10-04 1985-04-27 東陶機器株式会社 Precision stylus for copying machine tools and measuring machines
JPS6061141U (en) * 1983-10-04 1985-04-27 東陶機器株式会社 Large styli for copying machines and measuring machines
JPS6061143U (en) * 1983-10-04 1985-04-27 東陶機器株式会社 Precision stylus for copying machine tools and measuring machines
JPS6087634U (en) * 1983-11-24 1985-06-15 石井精密工業株式会社 Stylus for copying

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5996220A (en) * 1982-11-24 1984-06-02 Nippon Steel Corp Manufacture of unidirectional electrical steel sheet with superior iron loss
JPS6253574B2 (en) * 1982-11-24 1987-11-11 Nippon Steel Corp
JPS59185725A (en) * 1983-04-07 1984-10-22 Nippon Steel Corp Production of grain-oriented electrical steel sheet having excellent magnetic characteristic
JPS6315967B2 (en) * 1983-04-07 1988-04-07 Nippon Steel Corp
EP3633059A4 (en) * 2017-05-31 2020-04-29 JFE Steel Corporation Non-oriented electromagnetic steel sheet and production method therefor
US11404189B2 (en) 2017-05-31 2022-08-02 Jfe Steel Corporation Non-oriented electrical steel sheet and method for manufacturing the same

Also Published As

Publication number Publication date
JPS5836048B2 (en) 1983-08-06

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