KR20060026970A - 고강도 합금화 용융아연 도금 강판의 제조 방법 및 제조시스템 - Google Patents
고강도 합금화 용융아연 도금 강판의 제조 방법 및 제조시스템 Download PDFInfo
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Abstract
Description
Claims (5)
- 0.4 내지 2.0 wt%의 Si 성분을 함유하는 고강도 강판을 연속 용융아연 도금하는 단계를 포함하는 고강도 합금화 용융아연 도금 강판을 제조하는 방법이며, 환원대의 대기를, 1 내지 60wt% 까지의 H2를 포함하고 나머지 N2, H2O, O2, CO2, CO 및 불가피한 불순물로 구성되는 대기로 형성하는 단계와, 상기 대기 중에서, 이산화탄소의 분압과 수소의 분압의 log(PCO2/PH2)를 log(PCO2/PH2)≤-0.5로 제어하고, 물 분압과 수소 분압의 log(PCO2/PH2)를 log(PH20/PH2)≤-0.5로 제어하고, 이산화탄소 분압 PCO2와 물의 분압 PH2O의 총 분압 PT와 수소 분압의 log(PT/PH2)를 -3≤log(PT/PH2)≤-0.5로 제어하는 단계와, 상기 환원대에서의 어닐링을 720℃ 내지 880℃의 페라이트-오스테나이트 이상 온도 영역에서 수행하는 단계와, 도금 배스까지 냉각하고 용융아연 도금을 수행하여 상기 냉연강판의 표면에 용융아연 도금 층을 형성하는 단계와, 상기 용융아연 도금 층이 형성된 강판에 460 내지 550℃에서 합금화 열처리를 수행하는 단계를 포함하는 고강도 합금화 용융아연 도금 강판의 제조방법.
- 제1항에 있어서, 상기 용융아연 도금은 0.07wt% 이상의 배스 내 유효 Al 농도와 나머지 Zn과 불가피한 불순물로 구성된 조성성분의 용융아연 도금 배스 내에 서 수행하고, 상기 합금화는450≤T≤410×exp(2×[Al%])여기서, [Al%]: 용융아연 도금 배스 내의 유효 Al 농도(wt%)를 만족하는 온도 T에서 수행하는 것을 특징으로 하는 고강도 합금화 용융아연 도금 강판의 제조방법.
- 제1항 또는 제2항에 있어서,[Al%]≤0.092-0.01×[Si%]2여기서, [Si%] : 강판의 Si 함유량(wt%)을 만족하는 배스 내의 유효 Al 유효농도에서 수행하는 것을 특징으로 하는 밀착성이 뛰어난 고강도 합금화 용융아연 도금 강판의 제조방법.
- 용융아연 도금 배스를 제공하고 용융아연으로 강판을 연속 도금하는 것을 포함하는 용융아연 도금 강판 제조설비이며, 제1항의 고강도 합금화 용융아연 도금 강판의 제조 방법을 수행하기 위한 용융아연 도금 강판을 제조하기 위한 상기 시스템은 어닐링 로를 올 레이디언트 튜브 타입의 어닐링 로로 형성하고, 상기 어닐링 로에 1 내지 100wt% 양의 CO2를 포함하고 나머지 N2, H2O, O2, CO 및 불가피한 불순물로 구성된 가스를 도입하는 장치를 제공하는 것을 특징으로 하는 제조설비.
- 용융아연 도금 배스를 제공하고 용융아연으로 강판을 연속 도금하는 것을 포함하는 용융아연 도금 강판 제조 시스템이며, 제 1항의 고강도 합금화 용융아연 도금 강판의 제조 방법을 수행하기 위한 용융아연 도금 강판을 제조하기 위한 상기 시스템은 어닐링 로를 올 레이디언트 튜브 타입의 어닐링 로로 형성하고, 상기 어닐링 로에서 CO 또는 탄화수소를 연소해서 1 내지 100wt% 양의 CO2를 포함하고 나머지 N2, H2O, O2, CO 및 불가피한 불순물로 구성된 가스를 생성하는 장치를 제공하는 것을 특징으로 하는 제조 시스템.
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JPJP-P-2003-00207881 | 2003-08-19 | ||
JP2003207881A JP4192051B2 (ja) | 2003-08-19 | 2003-08-19 | 高強度合金化溶融亜鉛めっき鋼板の製造方法と製造設備 |
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US (1) | US8491734B2 (ko) |
EP (1) | EP1658387B1 (ko) |
JP (1) | JP4192051B2 (ko) |
KR (1) | KR100766165B1 (ko) |
CN (1) | CN100385019C (ko) |
AT (1) | ATE550447T1 (ko) |
BR (1) | BRPI0413708B1 (ko) |
CA (1) | CA2536153C (ko) |
ES (1) | ES2381364T3 (ko) |
PL (1) | PL1658387T3 (ko) |
RU (1) | RU2323266C2 (ko) |
TW (1) | TWI268964B (ko) |
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JP4741376B2 (ja) * | 2005-01-31 | 2011-08-03 | 新日本製鐵株式会社 | 外観が良好な高強度合金化溶融亜鉛めっき鋼板及びその製造方法と製造設備 |
EP1936000B1 (en) * | 2005-10-14 | 2018-06-27 | Nippon Steel & Sumitomo Metal Corporation | Continuous annealing and hot-dipping plating method and system for steel sheets containing silicon |
JP4912684B2 (ja) * | 2006-01-18 | 2012-04-11 | 新日本製鐵株式会社 | 高強度溶融亜鉛めっき鋼板およびその製造装置ならびに高強度合金化溶融亜鉛めっき鋼板の製造方法 |
ES2441959T5 (es) * | 2006-01-30 | 2022-09-07 | Nippon Steel Corp | Chapa de acero galvanizado por inmersión en caliente de alta resistencia que presenta excelente aptitud para el moldeo e idoneidad para el chapado, y chapa de acero galvanizado por inmersión en caliente aleado de alta resistencia, y métodos para la producción de las mismas |
JP4837459B2 (ja) * | 2006-06-30 | 2011-12-14 | 新日本製鐵株式会社 | 外観が良好な耐食性に優れた高強度溶融亜鉛めっき鋼板及びその製造方法 |
JP4932363B2 (ja) * | 2006-07-20 | 2012-05-16 | 新日本製鐵株式会社 | 高強度合金化溶融亜鉛めっき鋼板及びその製造方法 |
JP4932376B2 (ja) * | 2006-08-02 | 2012-05-16 | 新日本製鐵株式会社 | めっき性に優れた高強度溶融亜鉛めっき鋼板及びその製造方法 |
DE102006039307B3 (de) | 2006-08-22 | 2008-02-21 | Thyssenkrupp Steel Ag | Verfahren zum Beschichten eines 6-30 Gew.% Mn enthaltenden warm- oder kaltgewalzten Stahlbands mit einer metallischen Schutzschicht |
JP5223360B2 (ja) * | 2007-03-22 | 2013-06-26 | Jfeスチール株式会社 | 成形性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
JP5103988B2 (ja) * | 2007-03-30 | 2012-12-19 | Jfeスチール株式会社 | 高強度溶融亜鉛めっき鋼板 |
FR2920439B1 (fr) | 2007-09-03 | 2009-11-13 | Siemens Vai Metals Tech Sas | Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation |
JP5200463B2 (ja) * | 2007-09-11 | 2013-06-05 | Jfeスチール株式会社 | 溶融亜鉛めっき鋼板の製造方法 |
JP5119903B2 (ja) | 2007-12-20 | 2013-01-16 | Jfeスチール株式会社 | 高強度溶融亜鉛めっき鋼板および高強度合金化溶融亜鉛めっき鋼板の製造方法 |
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CA2536153A1 (en) | 2005-02-24 |
BRPI0413708A (pt) | 2006-10-17 |
TWI268964B (en) | 2006-12-21 |
PL1658387T3 (pl) | 2012-08-31 |
EP1658387A1 (en) | 2006-05-24 |
BRPI0413708B1 (pt) | 2012-12-11 |
JP2005060743A (ja) | 2005-03-10 |
CN100385019C (zh) | 2008-04-30 |
CN1839210A (zh) | 2006-09-27 |
CA2536153C (en) | 2009-10-06 |
RU2006108544A (ru) | 2006-07-27 |
JP4192051B2 (ja) | 2008-12-03 |
RU2323266C2 (ru) | 2008-04-27 |
TW200510567A (en) | 2005-03-16 |
ES2381364T3 (es) | 2012-05-25 |
KR100766165B1 (ko) | 2007-10-10 |
US20070051438A1 (en) | 2007-03-08 |
EP1658387B1 (en) | 2012-03-21 |
ATE550447T1 (de) | 2012-04-15 |
WO2005017214A1 (en) | 2005-02-24 |
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