KR930008166A - 자속밀도가 높은 일방향성 전기 강스트립의 제조방법 - Google Patents

자속밀도가 높은 일방향성 전기 강스트립의 제조방법 Download PDF

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KR930008166A
KR930008166A KR1019920019842A KR920019842A KR930008166A KR 930008166 A KR930008166 A KR 930008166A KR 1019920019842 A KR1019920019842 A KR 1019920019842A KR 920019842 A KR920019842 A KR 920019842A KR 930008166 A KR930008166 A KR 930008166A
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strip
temperature
steel strip
annealing
high magnetic
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KR950005793B1 (ko
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구로끼 가쯔로
요시또미 야스나리
마스이 히로아끼
하라따니 쯔또무
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하지메 나까가와
니뽄 스틸 코포레이션
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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
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1266—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest between cold rolling steps
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1233—Cold rolling
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding

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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)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

본 발명은 자슥밀도가 높은 일방향정 전기 강스트립의 제조방법을 개시하고 있다. 본 방법은 기본 성분으로 이루어지고 여기에 Sn이 0.02-0.15%로 첨가된 강인고트를 열 압연하고, 열 압연 스트립을 아닐링하고, 아닐링된 스트립을 80% 또는 그이상의 최종 압연율로서 냉간 압연한 다음 냉간 압연된 스트립에 탈탄화 아닐링, 질화처리 및 마무리 아닐링시키는 것으로 이루어지며, 여기서 열 압연된 스트립의 아닐링 온도, TC를 1240-2. 1xAlR T310-1.8xAlR(AlR=산가용성[Al]-27/14x[N]의 범위내가 되도록 설정하고 스트립을 180초 또는 그이상동안 균열하고, 800-950℃의 온도에 30-300초간 유지시킨 다음 급랭시키다.
이와 같이 제조된 일방향성 진기 강스트립은 [A1]과 [N]의 변화에 영향이 없다.
본 발명에 따라, 자속밀도가 매우 높은 일방향정 전기 강스트립은 A1과 N 성분, 최종 냉간 압연진에 강스트립의 아닐링을 위한 조건 및 일차 재결정화 입자의 성장사이의 적합한 관계를 설정하여 아닐링 조건을 적정화하고 탈탄화 아닐링 후 질화 처리의 실시를 통해 안정하게 제조될 수 있다.

Description

자속밀도가 높은 일방향성 전기 강스트립의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에서 AlR과 일차 균열(均熱 soaking) 온도사이의 관계를 도시한 디이아그램,
제2도는 이차 균열 온도와 자속밀도(B3)사이의 관계를 도시한 다이아그램.

Claims (2)

  1. 중량으로 C 0.025-0.075%, Si 2.5-4.5%, S 0.015% 또는 그이하, 산가용정 Al 0.015-0.04%, N 0.010%이하 및 Mn 0.050-0.45%로 이루어지고 잔량이 Fe와 불가피한 불순물로 된 전기 강스트립을 1200℃ 또는 그이하의 온도에서 가열하고, 가열된 슬라보를 일정 두께를 가진 열 압연 스트립으로 열 압연하고, 냉간 압연사이에 중간 아닐링을 수행하면서 최종 압연율이 80% 또는 그이상인 냉간 압연 강스트립으로 열 압연된 강스트립을 1회 또는 2회 또는 그이상 냉간 압연시키고, 냉간 압연된 강스트립율 탈탄화 아닐링 및 마무리 아닐링시키는 단계로 이루어진, 자속밀도가 높은 일방향성 전기 강스트립의 제조방법으로서, 보다 높은 균열 온도, TC 및 열 압연된 스트립의 조성물로 부터 측정된 AlR(산가용성 [Al]-27/14x[N](ppm)사이의 관계가 1240-2. 1xTAlR T1310-1.8xTAlR(최대 온도 : 1150℃ 최소 온도 : 950℃)내로 되도록 설정하고, 스트립을 측정 온도, TC에서 180초 또는 그이하 동안 균열하고, 보다 낮은 균열 온도 800-950℃에서 스트립을 30초-300초 동안 방치한 다음 스트립을 10℃/초 또는 그이상의 속도에서 상온으로 냉각시키는 것으로 이루어진 이단계 균열 공정을 통해 최초냉간 압연진 스트립을 아닐링이 완료된 때와 온도가 마무리 아닐링에서 강스트립의 이차 재결정화 개시 온도에 도달할때의 사이에 강스트립을 질화 처리하는 것이 특징인 자속밀도가 높은 일방향정 전기 강스트립의 제조방법.
  2. 제1항에 있어서, 출발물질로서 전기 강슬라보가 중량으로, C 0.25-0.075%, Si 2.5-4.5%, S 0.015% 또는 그이하, 산가용성 Al 0.015-0.040%, N 0.010%이하, Mn 0.050-0.45%, Sn 0.02-0.15% 및 Cr 0.05-0.15%로 이루어지고 잔량이 Fe와 불가피한 불순물로 된 것이 특징인 자속밀도가 높은 일방향성 강스트립의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920019842A 1991-10-28 1992-10-27 자속밀도가 높은 일방향성 전기 강스트립의 제조방법 KR950005793B1 (ko)

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Application Number Priority Date Filing Date Title
JP281072/1991 1991-10-28
JP91-281072 1991-10-28
JP3281072A JP2620438B2 (ja) 1991-10-28 1991-10-28 磁束密度の高い一方向性電磁鋼板の製造方法

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KR930008166A true KR930008166A (ko) 1993-05-21
KR950005793B1 KR950005793B1 (ko) 1995-05-31

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US (1) US5261972A (ko)
EP (1) EP0539858B1 (ko)
JP (1) JP2620438B2 (ko)
KR (1) KR950005793B1 (ko)
DE (1) DE69218880T2 (ko)

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IT1299137B1 (it) 1998-03-10 2000-02-29 Acciai Speciali Terni Spa Processo per il controllo e la regolazione della ricristallizzazione secondaria nella produzione di lamierini magnetici a grano orientato
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CN114107809B (zh) * 2021-11-12 2022-09-23 内蒙古科技大学 以铜析出为单一抑制剂的取向电工钢及其生产方法
KR20230092584A (ko) * 2021-12-17 2023-06-26 주식회사 포스코 방향성 전기강판 및 이의 제조 방법
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Publication number Publication date
EP0539858A1 (en) 1993-05-05
DE69218880T2 (de) 1997-07-24
DE69218880D1 (de) 1997-05-15
JPH05125446A (ja) 1993-05-21
JP2620438B2 (ja) 1997-06-11
EP0539858B1 (en) 1997-04-09
US5261972A (en) 1993-11-16
KR950005793B1 (ko) 1995-05-31

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