KR920012481A - Magnetic Stabilization Method of High Magnetic Flux Directional Electrical Steel Sheet - Google Patents

Magnetic Stabilization Method of High Magnetic Flux Directional Electrical Steel Sheet Download PDF

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Publication number
KR920012481A
KR920012481A KR1019900022126A KR900022126A KR920012481A KR 920012481 A KR920012481 A KR 920012481A KR 1019900022126 A KR1019900022126 A KR 1019900022126A KR 900022126 A KR900022126 A KR 900022126A KR 920012481 A KR920012481 A KR 920012481A
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South Korea
Prior art keywords
annealing
electrical steel
steel sheet
high temperature
atmosphere
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KR1019900022126A
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Korean (ko)
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KR920008692B1 (en
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최규승
한찬희
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정명식
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019900022126A priority Critical patent/KR920008692B1/en
Publication of KR920012481A publication Critical patent/KR920012481A/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 없음No content

Description

고자속밀도 방향성 전기강판의 자기적특성 안정화제조법Magnetic Stabilization Method of High Magnetic Flux Directional 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:2.8-3.5%, Mn:0.060-0.095%, S:0.015-0.035%, sol.Al:0.015-0.036%, N:0.004-0.012% 함유한 전기강판 스라브를 열간압연하고 석출소둔 처리후 최종 두께로 냉간압연하고 습윤분위기에서 탈탄소둔을 행한 후 MgO 100에 대하여 TiO23-5중량%, Na2B4O70.1-1.0중량% 포함한 소둔분리제를 표면에 도포하고, 600-1200℃의 구간에서는 H2와 N2의 혼합가스에서 15-25℃의 승온속도로 이어 1200℃에서 H2분위기하에서 20시간 가열후 냉각하는 고온소둔을 행하는 고자속밀도 방향성 전기강판의 제조방법에 있어서, 상기 고온 소둔전, 소둔분리제가 도포된 판재의 일부를 절단하여 25%N2+75%H2의 분위기하에서 20℃/hr의 승온속도로 600-1100℃ 범위까지 가열하는 2차재결정수둔을 실시한 다음 이 소재의 결정립중 미립자의 유무를 확인한 후 이 결과에 따라 고온소둔시 상기 600-1200℃의 온도구간 에서 H2와 N2의가스비를 100-60 : 0-40 범위로 조절하여 상기 고온소둔을 실시하는 것을 특징으로 하는 고자속밀도 방향성 전기강판의 자기적특성 안정화제조방법.By weight, hot-rolled and precipitated electrical steel slab containing Si: 2.8-3.5%, Mn: 0.060-0.095%, S: 0.015-0.035%, sol.Al:0.015-0.036%, N: 0.004-0.012% After annealing, cold rolling to a final thickness and decarbonization annealing in a wet atmosphere were carried out to apply an annealing separator containing 3-5 wt% TiO 2 and 0.1-1.0 wt% Na 2 B 4 O 7 based on MgO 100. Manufacture of high magnetic flux density oriented electrical steel sheet which is subjected to high temperature annealing after heating for 20 hours in H 2 atmosphere at 1200 ° C in a temperature range of 15-25 ° C. in a mixed gas of H 2 and N 2 at 600-1200 ° C. In the method, the secondary heat of cutting a portion of the plate coated with the annealing separator before the high temperature annealing and heating to a temperature range of 600-1100 ℃ at a temperature rising rate of 20 ℃ / hr in an atmosphere of 25% N 2 + 75% H 2 After recrystallization annealing, the presence of fine particles in the grains of this material was checked, and the temperature of 600-1200 ° C. during the high temperature annealing was determined according to the result. 100-60 the gas ratio of the H 2 and N 2 in the interval: magnetic properties of the scope adjusted to 0-40 flux density grain-oriented electrical steel sheet, characterized in that carrying out the high temperature annealing stabilization method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900022126A 1990-12-28 1990-12-28 Making process for electric steel plates KR920008692B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022126A KR920008692B1 (en) 1990-12-28 1990-12-28 Making process for electric steel plates

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Application Number Priority Date Filing Date Title
KR1019900022126A KR920008692B1 (en) 1990-12-28 1990-12-28 Making process for electric steel plates

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KR920012481A true KR920012481A (en) 1992-07-27
KR920008692B1 KR920008692B1 (en) 1992-10-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190054592A (en) 2017-11-14 2019-05-22 롯데케미칼 주식회사 Preparation method of metalic multicomponent oxide catalysts for producing methacrolein or methacrylic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190054592A (en) 2017-11-14 2019-05-22 롯데케미칼 주식회사 Preparation method of metalic multicomponent oxide catalysts for producing methacrolein or methacrylic acid

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KR920008692B1 (en) 1992-10-08

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