WO2019125078A8 - 무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법 - Google Patents

무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법 Download PDF

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Publication number
WO2019125078A8
WO2019125078A8 PCT/KR2018/016527 KR2018016527W WO2019125078A8 WO 2019125078 A8 WO2019125078 A8 WO 2019125078A8 KR 2018016527 W KR2018016527 W KR 2018016527W WO 2019125078 A8 WO2019125078 A8 WO 2019125078A8
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WO
WIPO (PCT)
Prior art keywords
steel sheet
oriented electrical
less
electrical steel
hot
Prior art date
Application number
PCT/KR2018/016527
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English (en)
French (fr)
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WO2019125078A1 (ko
Inventor
차경세
조용석
정제숙
공종판
Original Assignee
주식회사 포스코
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Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Publication of WO2019125078A1 publication Critical patent/WO2019125078A1/ko
Publication of WO2019125078A8 publication Critical patent/WO2019125078A8/ko

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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
    • 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
    • C21D8/1222—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
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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

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

Abstract

본 발명은 연주-압연 직결 공정으로 제조되는 것에관한것으로, 중량%로, C: 0.005% 이하(0% 포함), Mn: 0.1~1.5%, Si: 1.5~3.0%, Al: 0.1~1.0%, S: 0.003% 이하(0% 포함), Ti: 0.003% 이하(0% 포함), N: 0.003% 이하(0% 포함), P: 0.05% 이하(0%제외), Sn: 0.05% 이하(0% 제외), Sb: 0.01% 이하(0% 제외), Sn+Sb+P: 0.01~0.1%, 나머지 Fe 및 기타 불가피한 불순물을 포함하고; 그리고 미세조직은 95면적% 이상의 페라이트 조직을 포함하고, 상기 페라이트 조직은 재결정 조직과 회복조직으로 이루어지며, 강판의 두께 방향 단면을 기준으로 상기 재결정조직의 면적이 55% 이상인 무방향성 전기강판용 열연강판, 이를 이용한 무방향성 전기강판 및 이들의 제조방법이 제공된다.
PCT/KR2018/016527 2017-12-24 2018-12-21 무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법 WO2019125078A1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0178954 2017-12-24
KR1020170178954A KR102109240B1 (ko) 2017-12-24 2017-12-24 무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
WO2019125078A1 WO2019125078A1 (ko) 2019-06-27
WO2019125078A8 true WO2019125078A8 (ko) 2020-02-27

Family

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PCT/KR2018/016527 WO2019125078A1 (ko) 2017-12-24 2018-12-21 무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법

Country Status (2)

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KR (1) KR102109240B1 (ko)
WO (1) WO2019125078A1 (ko)

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Publication number Priority date Publication date Assignee Title
CN112430776B (zh) * 2019-08-26 2022-06-28 宝山钢铁股份有限公司 一种磁各向异性小的无取向电工钢板及其制造方法
CN113969371B (zh) * 2020-07-24 2022-09-20 宝山钢铁股份有限公司 一种定子、转子铁芯同时套裁用无取向电工钢板及其制造方法
CN113789471B (zh) * 2021-08-19 2022-05-20 鞍钢股份有限公司 一种冷连轧法生产无取向高硅钢的方法
CN113996771A (zh) * 2021-11-12 2022-02-01 江苏嘉耐高温材料股份有限公司 一种无取向硅钢用预熔型结晶器保护渣及其制备方法
CN117887955B (zh) * 2024-03-15 2024-05-10 包头市威丰稀土电磁材料股份有限公司 采用单体高温退火炉常化无取向电工钢的工艺控制方法

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DE19807122C2 (de) * 1998-02-20 2000-03-23 Thyssenkrupp Stahl Ag Verfahren zur Herstellung von nichtkornorientiertem Elektroblech
DE10153234A1 (de) * 2001-10-31 2003-05-22 Thyssenkrupp Stahl Ag Für die Herstellung von nichtkornorientiertem Elektroblech bestimmtes, warmgewalztes Stahlband und Verfahren zu seiner Herstellung
KR101510272B1 (ko) * 2012-12-27 2015-04-08 주식회사 포스코 열연강판 제조방법 및 이를 이용한 열연강판
KR101560944B1 (ko) * 2013-12-24 2015-10-15 주식회사 포스코 표면 품질이 우수한 고강도 열연강판 및 그 제조방법
KR101701195B1 (ko) 2015-12-23 2017-02-01 주식회사 포스코 무방향성 전기강판 및 그 제조방법
KR101728827B1 (ko) * 2015-12-24 2017-04-20 주식회사 포스코 무방향성 전기강판 및 그 제조방법

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KR20190077201A (ko) 2019-07-03
KR102109240B1 (ko) 2020-05-11
WO2019125078A1 (ko) 2019-06-27

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