JPS57120617A - Method for rolling of hot rolled steel strip for production of unidirectional silicon steel plate - Google Patents

Method for rolling of hot rolled steel strip for production of unidirectional silicon steel plate

Info

Publication number
JPS57120617A
JPS57120617A JP56005101A JP510181A JPS57120617A JP S57120617 A JPS57120617 A JP S57120617A JP 56005101 A JP56005101 A JP 56005101A JP 510181 A JP510181 A JP 510181A JP S57120617 A JPS57120617 A JP S57120617A
Authority
JP
Japan
Prior art keywords
rolling
hot
stand
hot rolling
unidirectional silicon
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
JP56005101A
Other languages
Japanese (ja)
Other versions
JPS5935415B2 (en
Inventor
Hiroshi Shimizu
Ujihiro Nishiike
Isao Ito
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56005101A priority Critical patent/JPS5935415B2/en
Publication of JPS57120617A publication Critical patent/JPS57120617A/en
Publication of JPS5935415B2 publication Critical patent/JPS5935415B2/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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—Hot rolling

Abstract

PURPOSE:To obtain a unidirectional silicon steel plate of superior magnetic characteristics by rolling a steel slab of specified contents of C and Si under the conditions specifying the relations between hot rolling temps., drafts and inter-stand transfer time. CONSTITUTION:A steel slab contg. 2-4.5% Si, 0.030-0.060% C, etc., is heated and after its temp. attains 1,000 deg.C or below, it is hot-rolled in >=2 stands at least 70% draft, whereby it is finished to a hot-rolled steel strip of 1.5-4.0mm. thicknesses. At this time, the continuous rolling is accomplished by satisfying the conditions of the equation wherein the time until the slab shifts from a certain stand to the next stand is defined at t sec, the hot rolling temp. of each stand as t deg.C and the draft of hot rolling as R%. Also, the cooling of the slab during hot rolling is intensified to keep the finish temp. of the hot rolling at 850 deg.C or below. By this rolling method, the Goss strength of the surfaces of the hot rolled plate is improved, and the unidirectional silicon steel plate of improved electromagnetic characteristics is obtained.
JP56005101A 1981-01-19 1981-01-19 Rolling method for hot-rolled steel strip for producing unidirectional silicon steel sheets Expired JPS5935415B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56005101A JPS5935415B2 (en) 1981-01-19 1981-01-19 Rolling method for hot-rolled steel strip for producing unidirectional silicon steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56005101A JPS5935415B2 (en) 1981-01-19 1981-01-19 Rolling method for hot-rolled steel strip for producing unidirectional silicon steel sheets

Publications (2)

Publication Number Publication Date
JPS57120617A true JPS57120617A (en) 1982-07-27
JPS5935415B2 JPS5935415B2 (en) 1984-08-28

Family

ID=11601974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56005101A Expired JPS5935415B2 (en) 1981-01-19 1981-01-19 Rolling method for hot-rolled steel strip for producing unidirectional silicon steel sheets

Country Status (1)

Country Link
JP (1) JPS5935415B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124525A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Manufacture of grain oriented silicon steel sheet having good electromagnetic characteristic
JPS61124526A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Manufacture of grain oriented silicon steel sheet having good electromagnetic characteristic

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124525A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Manufacture of grain oriented silicon steel sheet having good electromagnetic characteristic
JPS61124526A (en) * 1984-11-20 1986-06-12 Kawasaki Steel Corp Manufacture of grain oriented silicon steel sheet having good electromagnetic characteristic

Also Published As

Publication number Publication date
JPS5935415B2 (en) 1984-08-28

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