KR920012483A - Manufacturing method of non-oriented electrical steel sheet for large rotor with small magnetic anisotropy - Google Patents

Manufacturing method of non-oriented electrical steel sheet for large rotor with small magnetic anisotropy Download PDF

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Publication number
KR920012483A
KR920012483A KR1019900022653A KR900022653A KR920012483A KR 920012483 A KR920012483 A KR 920012483A KR 1019900022653 A KR1019900022653 A KR 1019900022653A KR 900022653 A KR900022653 A KR 900022653A KR 920012483 A KR920012483 A KR 920012483A
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KR
South Korea
Prior art keywords
manufacturing
steel sheet
electrical steel
oriented electrical
magnetic anisotropy
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Application number
KR1019900022653A
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Korean (ko)
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KR920008694B1 (en
Inventor
박종태
윤영진
이원길
Original Assignee
정명식
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019900022653A priority Critical patent/KR920008694B1/en
Publication of KR920012483A publication Critical patent/KR920012483A/en
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Publication of KR920008694B1 publication Critical patent/KR920008694B1/en

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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

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

Abstract

내용 없음No content

Description

자기이방성이 작은 대형회전기용 무방향성 전기강판의 제조방법Manufacturing method of non-oriented electrical steel sheet for large rotor with small magnetic anisotropy

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

제1도는 Sn 함량에 따른 무방향성 전기강판들(본 발명재 및 비교재)의 자성 및 자기이방성 변화를나타낸 그래프.1 is a graph showing the magnetic and magnetic anisotropy change of the non-oriented electrical steel sheets (the present invention and the comparative material) according to the Sn content.

Claims (2)

중량%로 0.040%의 C, 2-4%의 Si, 0.25-1.0%의 Al, 0.15-1.0%의 Mn, 0.0070%이하의 S, 0.0070%이하의 N, 0.01-0.3%의 Sn을 함유하며 나머지 Fe로 이루어지는 열간압연당판을 중간소둔을 포함한 2회냉간압연에 의하여 최종구께로 압연하고 2단계 연속사상 소둔처리함에 있어서, 사상소둔 전단부에서 750-850℃의 온도로 1-4분간 소둔함을 특징으로 하는, 자기이방성이 작은 대형회전기용 무방향성 전기강판의 제조방법.By weight, it contains 0.040% C, 2-4% Si, 0.25-1.0% Al, 0.15-1.0% Mn, 0.0070% or less S, 0.0070% or less N, 0.01-0.3% Sn. The hot rolled sugar plate composed of the remaining Fe is rolled to the final sphere by two cold rolling including intermediate annealing, and in the two-stage continuous sand annealing process, the annealing front end is annealed at a temperature of 750-850 ° C. for 1-4 minutes. A method of manufacturing a non-oriented electrical steel sheet for large-sized rotor, characterized in that the magnetic anisotropy is small. 제1항에 있어서, 2차 냉각압연율이 25-65%인 것을 특징으로 하는 대형 회전기용 무방향성 전기강판의 제조방법.The method of claim 1, wherein the secondary cold rolling rate is 25-65%. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900022653A 1990-12-31 1990-12-31 Making process for electric steel plates KR920008694B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022653A KR920008694B1 (en) 1990-12-31 1990-12-31 Making process for electric steel plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022653A KR920008694B1 (en) 1990-12-31 1990-12-31 Making process for electric steel plates

Publications (2)

Publication Number Publication Date
KR920012483A true KR920012483A (en) 1992-07-27
KR920008694B1 KR920008694B1 (en) 1992-10-08

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Application Number Title Priority Date Filing Date
KR1019900022653A KR920008694B1 (en) 1990-12-31 1990-12-31 Making process for electric steel plates

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KR (1) KR920008694B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100237159B1 (en) * 1995-12-14 2000-01-15 이구택 The manufacturing method for non orient electric steel sheet
KR100544417B1 (en) * 1998-12-16 2006-04-06 주식회사 포스코 Method for manufacturing non-oriented electrical steel sheet with excellent magnetic properties
KR100544416B1 (en) * 1997-11-04 2006-05-03 주식회사 포스코 Non-oriented electrical steel sheet with high magnetic flux density and low iron loss and its manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100237159B1 (en) * 1995-12-14 2000-01-15 이구택 The manufacturing method for non orient electric steel sheet
KR100544416B1 (en) * 1997-11-04 2006-05-03 주식회사 포스코 Non-oriented electrical steel sheet with high magnetic flux density and low iron loss and its manufacturing method
KR100544417B1 (en) * 1998-12-16 2006-04-06 주식회사 포스코 Method for manufacturing non-oriented electrical steel sheet with excellent magnetic properties

Also Published As

Publication number Publication date
KR920008694B1 (en) 1992-10-08

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