KR930002523A - Manufacturing method of non-oriented electrical steel sheet - Google Patents

Manufacturing method of non-oriented electrical steel sheet Download PDF

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Publication number
KR930002523A
KR930002523A KR1019910011895A KR910011895A KR930002523A KR 930002523 A KR930002523 A KR 930002523A KR 1019910011895 A KR1019910011895 A KR 1019910011895A KR 910011895 A KR910011895 A KR 910011895A KR 930002523 A KR930002523 A KR 930002523A
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KR
South Korea
Prior art keywords
less
steel sheet
electrical steel
oriented electrical
manufacturing
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Application number
KR1019910011895A
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Korean (ko)
Other versions
KR930004848B1 (en
Inventor
배병근
우종수
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Priority to KR1019910011895A priority Critical patent/KR930004848B1/en
Publication of KR930002523A publication Critical patent/KR930002523A/en
Application granted granted Critical
Publication of KR930004848B1 publication Critical patent/KR930004848B1/en

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    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

내용 없음.No content.

Description

무방향성 전기강판의 제조방법Manufacturing method of non-oriented electrical steel sheet

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

중량%로, Si：3.5%이하, Al：0.7%, C：0.05%이하, 잔부 Fe 및 기타불순물을 함유하는 슬라브를 가열하고 열간압연하여 열연코일을 제조한 후, 산세, 냉간압연 및 소둔하는 무방향성 전기강판의 제조방법에 있어서, 상기 열연코일이, 상기 슬리브를 750℃이상 Ar1이하의 페라이트 상에서 마무리압연되도록 열간압연한후, 650℃이상 750℃이하의 권취온도로 권취한 다음 즉시 예열된 가열로에 장입하여 650℃이상 750℃이하에서 2시간 이상 15시간 이하로 항온유지후 냉각하여 제조됨을 특징으로 하는 무방향성 전기강판의 제조방법.By weight%, Si: 3.5% or less, Al: 0.7%, C: 0.05% or less, a slab containing the balance Fe and other impurities is heated and hot rolled to produce a hot rolled coil, followed by pickling, cold rolling and annealing. In the method for producing a non-oriented electrical steel sheet, the hot rolled coil is hot rolled to finish-roll the sleeve on a ferrite of 750 ° C or more and Ar 1 or less, and then wound up to a coiling temperature of 650 ° C or more and 750 ° C or less and then preheated immediately. The method for manufacturing a non-oriented electrical steel sheet, characterized in that it is produced by cooling after maintaining constant temperature for 2 hours or more and less than 15 hours at 650 ℃ to 750 ℃ below. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019910011895A 1991-07-12 1991-07-12 Process for making non-oriented electrical steel sheet KR930004848B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910011895A KR930004848B1 (en) 1991-07-12 1991-07-12 Process for making non-oriented electrical steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910011895A KR930004848B1 (en) 1991-07-12 1991-07-12 Process for making non-oriented electrical steel sheet

Publications (2)

Publication Number Publication Date
KR930002523A true KR930002523A (en) 1993-02-23
KR930004848B1 KR930004848B1 (en) 1993-06-09

Family

ID=19317187

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910011895A KR930004848B1 (en) 1991-07-12 1991-07-12 Process for making non-oriented electrical steel sheet

Country Status (1)

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KR (1) KR930004848B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825560B1 (en) * 2001-12-03 2008-04-25 주식회사 포스코 Method for Manufacturing Nonoriented Electrical Steel Sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100825560B1 (en) * 2001-12-03 2008-04-25 주식회사 포스코 Method for Manufacturing Nonoriented Electrical Steel Sheet

Also Published As

Publication number Publication date
KR930004848B1 (en) 1993-06-09

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