JPS55100927A - Production of non-directional silicon steel sheet having less aging deterioration and good surface property - Google Patents

Production of non-directional silicon steel sheet having less aging deterioration and good surface property

Info

Publication number
JPS55100927A
JPS55100927A JP478579A JP478579A JPS55100927A JP S55100927 A JPS55100927 A JP S55100927A JP 478579 A JP478579 A JP 478579A JP 478579 A JP478579 A JP 478579A JP S55100927 A JPS55100927 A JP S55100927A
Authority
JP
Japan
Prior art keywords
steel sheet
silicon steel
content
production
surface property
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
JP478579A
Other languages
Japanese (ja)
Other versions
JPS5855209B2 (en
Inventor
Shigenobu Koga
Katsuyuki Oba
Takashi Masuda
Hiromichi Koshiishi
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 JP54004785A priority Critical patent/JPS5855209B2/en
Publication of JPS55100927A publication Critical patent/JPS55100927A/en
Publication of JPS5855209B2 publication Critical patent/JPS5855209B2/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 enable steel sheet having less aging deterioration and good surface property to be stably produced without carrying out decarburization treatment by a method wherein carbon content is lowered to below a specified amount of carbon in the production of non-directional silicon steel sheet having high Si-content. CONSTITUTION:In the production of from high grade to intermediate grade non-directionality silicon steel sheet containing from 1.5-3.5% of Si, residual carbon content in the steel sheet is lowered to below 0.0030-0.0025% and Al content is made to >=0.15% or below 0.005% to avoid the formation of fine AlN which prevents crystal growth at the time of final annealing. When B is added to the steel, the amount of Al may be below 0.10% which is required for deoxidation, because AlN formation is controlled by B. B is added to the steel in such a proportion as to give a ratio of B/N of from 0.5-2.5. After the slab of the silicon steel having high Si-content and the above composition is hot-rolled, cold rolling is carried out once, or cold rolling including intermediate annealing without carrying out decarburization is carried out twice or more to produce steel sheet having final thickness. Then final annealing, which is not accompanied by decarburization, is carried out to produce non-directional silicon steel sheet having less aging deterioration and good surface property.
JP54004785A 1979-01-22 1979-01-22 Method for manufacturing non-oriented silicon steel sheet with little aging deterioration and good surface quality Expired JPS5855209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54004785A JPS5855209B2 (en) 1979-01-22 1979-01-22 Method for manufacturing non-oriented silicon steel sheet with little aging deterioration and good surface quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54004785A JPS5855209B2 (en) 1979-01-22 1979-01-22 Method for manufacturing non-oriented silicon steel sheet with little aging deterioration and good surface quality

Publications (2)

Publication Number Publication Date
JPS55100927A true JPS55100927A (en) 1980-08-01
JPS5855209B2 JPS5855209B2 (en) 1983-12-08

Family

ID=11593450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54004785A Expired JPS5855209B2 (en) 1979-01-22 1979-01-22 Method for manufacturing non-oriented silicon steel sheet with little aging deterioration and good surface quality

Country Status (1)

Country Link
JP (1) JPS5855209B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203718A (en) * 1981-06-10 1982-12-14 Nippon Steel Corp Manufacture of nondirectional electrical steel plate extremely excellent in its magnetic characteristic
EP0074036A1 (en) * 1981-08-28 1983-03-16 Nippon Steel Corporation Process for producing steel for an electrical steel sheet
JPS58117828A (en) * 1981-12-28 1983-07-13 Nippon Steel Corp Production of semi-process nondirectional electrical sheet having low iron loss and high magnetic flux density

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601398U (en) * 1983-06-18 1985-01-08 東陶機器株式会社 Heating mat for toilet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203718A (en) * 1981-06-10 1982-12-14 Nippon Steel Corp Manufacture of nondirectional electrical steel plate extremely excellent in its magnetic characteristic
JPS6056403B2 (en) * 1981-06-10 1985-12-10 新日本製鐵株式会社 Method for manufacturing semi-processed non-oriented electrical steel sheet with extremely excellent magnetic properties
EP0074036A1 (en) * 1981-08-28 1983-03-16 Nippon Steel Corporation Process for producing steel for an electrical steel sheet
JPS58117828A (en) * 1981-12-28 1983-07-13 Nippon Steel Corp Production of semi-process nondirectional electrical sheet having low iron loss and high magnetic flux density
JPS617446B2 (en) * 1981-12-28 1986-03-06 Nippon Steel Corp
US4851056A (en) * 1981-12-28 1989-07-25 Nippon Steel Corporation Process for producing a semi-processed non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density

Also Published As

Publication number Publication date
JPS5855209B2 (en) 1983-12-08

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