JPS5735628A - Manufacture of nonoriented electrical steel strip with superior magnetic characteristic - Google Patents

Manufacture of nonoriented electrical steel strip with superior magnetic characteristic

Info

Publication number
JPS5735628A
JPS5735628A JP11031480A JP11031480A JPS5735628A JP S5735628 A JPS5735628 A JP S5735628A JP 11031480 A JP11031480 A JP 11031480A JP 11031480 A JP11031480 A JP 11031480A JP S5735628 A JPS5735628 A JP S5735628A
Authority
JP
Japan
Prior art keywords
temp
steel strip
transformation point
steel
carrying
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
JP11031480A
Other languages
Japanese (ja)
Other versions
JPS5831367B2 (en
Inventor
Shigeo Kinoshita
Kazumi Morita
Isao Matoba
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 JP55110314A priority Critical patent/JPS5831367B2/en
Publication of JPS5735628A publication Critical patent/JPS5735628A/en
Publication of JPS5831367B2 publication Critical patent/JPS5831367B2/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 obtain a full-or semiprocessed steel strip with enhanced magnetic flux density and iron loss by finishing the hot rolling of a steel contg. restricted C, Si or Si+Al, Mn and P at a temp. above the Ar3 transformation point and carrying out short-time annealing at a temp. below the A3 transformation point. CONSTITUTION:A steel ingot or slab consisting of <=0.02% C, <=1.5% Si or Si+Al, <=1.0% Mn, <=0.20% P and the balance Fe with inevitable impurities is heated and hot rolled. At this time, the hot rolling finish tamp. is adjusted to above the temp. represented by the equation for holding a gamma structure. The hot rolled steel strip is then annealed at a temp. below the A3 transformation point for 30sec- 15min. Thus, the grains of the steel strip can be made coarse by the inexpensive continuous annealing without carrying out decarburization. When each of said components exceeds the upper limit, C makes the grain coarsening difficult and deteriorates the magnetic characteristics and suitability to magnetic aging. Si or Si+Al raises the gamma phase existing temp., Mn is magnetically harmful, and P makes the plate brittle.
JP55110314A 1980-08-13 1980-08-13 Method for manufacturing non-oriented electrical steel strip with excellent magnetic properties Expired JPS5831367B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55110314A JPS5831367B2 (en) 1980-08-13 1980-08-13 Method for manufacturing non-oriented electrical steel strip with excellent magnetic properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55110314A JPS5831367B2 (en) 1980-08-13 1980-08-13 Method for manufacturing non-oriented electrical steel strip with excellent magnetic properties

Publications (2)

Publication Number Publication Date
JPS5735628A true JPS5735628A (en) 1982-02-26
JPS5831367B2 JPS5831367B2 (en) 1983-07-05

Family

ID=14532565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55110314A Expired JPS5831367B2 (en) 1980-08-13 1980-08-13 Method for manufacturing non-oriented electrical steel strip with excellent magnetic properties

Country Status (1)

Country Link
JP (1) JPS5831367B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946519A (en) * 1987-06-18 1990-08-07 Kawasaki Steel Corporation Semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making
JPH032323A (en) * 1989-05-26 1991-01-08 Kobe Steel Ltd Manufacture of nonoriented silicon steel sheet having high magnetic flux density
US5013372A (en) * 1987-06-18 1991-05-07 Kawasaki Steel Corporation Semi-process non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making
JP2013227649A (en) * 2012-03-30 2013-11-07 Nisshin Steel Co Ltd Steel plate for high output reluctance motor iron core, method of manufacturing the steel plate, rotor for reluctance motor and stator using the steel plate as raw material, and reluctance motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946519A (en) * 1987-06-18 1990-08-07 Kawasaki Steel Corporation Semi-processed non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making
US5013372A (en) * 1987-06-18 1991-05-07 Kawasaki Steel Corporation Semi-process non-oriented electromagnetic steel strip having low core loss and high magnetic permeability, and method of making
JPH032323A (en) * 1989-05-26 1991-01-08 Kobe Steel Ltd Manufacture of nonoriented silicon steel sheet having high magnetic flux density
JP2013227649A (en) * 2012-03-30 2013-11-07 Nisshin Steel Co Ltd Steel plate for high output reluctance motor iron core, method of manufacturing the steel plate, rotor for reluctance motor and stator using the steel plate as raw material, and reluctance motor

Also Published As

Publication number Publication date
JPS5831367B2 (en) 1983-07-05

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