KR20170086098A - 고강도 용융 아연 도금 강판 및 그 제조 방법 - Google Patents
고강도 용융 아연 도금 강판 및 그 제조 방법 Download PDFInfo
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- C23C2/0224—Two or more thermal pretreatments
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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Abstract
성분 조성은, 질량% 로, C : 0.11 % 이상 0.20 % 이하, Si : 0.50 % 미만, Mn : 2.2 % 이상 3.5 % 이하, P : 0.03 % 이하, S : 0.005 % 이하, Al : 0.08 % 이하, N : 0.006 % 이하, B : 0.0002 % 이상 0.0030 % 이하를 함유하고, 잔부가 Fe 및 불가피적 불순물로 이루어진다. 조직은, 면적률로, 페라이트상이 20 % 미만 (0 % 포함한다), 베이나이트상이 50 % 이하 (0 % 를 포함한다), 마텐자이트상이 50 % 이상 (100 % 를 포함한다), 그 마텐자이트상에 포함되는 오토템퍼드 마텐자이트가 70 % 이상 (100 % 를 포함한다), 잔류 오스테나이트가 2 % 이하 (0 % 를 포함한다) 이다.
Description
Claims (8)
- 성분 조성은, 질량% 로, C : 0.11 % 이상 0.20 % 이하, Si : 0.50 % 미만, Mn : 2.2 % 이상 3.5 % 이하, P : 0.03 % 이하, S : 0.005 % 이하, Al : 0.08 % 이하, N : 0.006 % 이하, B : 0.0002 % 이상 0.0030 % 이하를 함유하고, 잔부가 Fe 및 불가피적 불순물로 이루어지고,
조직은, 면적률로, 페라이트상이 20 % 미만 (0 % 포함한다), 베이나이트상이 50 % 이하 (0 % 를 포함한다), 마텐자이트상이 50 % 이상 (100 % 를 포함한다), 그 마텐자이트상에 포함되는 오토템퍼드 마텐자이트가 70 % 이상 (100 % 를 포함한다), 잔류 오스테나이트가 2 % 이하 (0 % 를 포함한다) 이고,
인장 강도가 980 ㎫ 이상, 항복비가 0.65 이상인 고강도 용융 아연 도금 강판. - 제 1 항에 있어서,
상기 오토템퍼드 마텐자이트립 내에 분산하는 탄화물의 평균 입자경이 200 ㎚ 이하인 고강도 용융 아연 도금 강판. - 제 1 항 또는 제 2 항에 있어서,
상기 성분 조성에 추가로, 질량% 로, Ti : 0.001 % 이상 0.1 % 이하, Nb : 0.001 % 이상 0.1 % 이하의 1 종 이상을 함유하는 고강도 용융 아연 도금 강판. - 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,
상기 성분 조성에 추가로, 질량% 로, Cr : 0.001 % 이상 0.6 % 이하, Ni : 0.001 % 이상 0.08 % 이하, V : 0.001 % 이상 0.3 % 이하, Mo : 0.001 % 이상 0.3 % 이하, W : 0.001 % 이상 0.2 % 이하, Hf : 0.001 % 이상 0.3 % 이하의 1 종 또는 2 종 이상을 함유하는 고강도 용융 아연 도금 강판. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 성분 조성에 추가로, 질량% 로, REM, Mg, Ca 의 1 종 또는 2 종 이상을 합계로 0.0002 % 이상 0.01 % 이하를 함유하는 고강도 용융 아연 도금 강판. - 제 1 항, 제 3 항, 제 4 항, 제 5 항 중 어느 한 항에 기재된 성분 조성을 갖는 강 소재를, 1100 ℃ 이상 1350 ℃ 이하의 온도에서 가열하고, 이어서 마무리 압연 온도 800 ℃ 이상으로 하는 열간 압연을 실시하고, 680 ℃ 이하의 온도에서 권취하고, 냉간 압연하고,
Ac1 점 이상부터 최고 도달 온도까지 평균 가열 속도 4.0 ℃/s 이하에서 가열하고, Ac3 점부터 최고 도달 온도까지의 온도역의 체류 시간이 20 초 이상이고, 800 ℃ 부터 550 ℃ 까지의 평균 냉각 속도가 8 ℃/s 이상, 냉각 정지 온도가 (Ms 점 + 55 ℃) 이상 550 ℃ 미만으로 냉각하고, (Ms 점 + 55 ℃) 이상 550 ℃ 미만의 온도역의 체류 시간이 10 초 이상 120 초 이하로 하는 어닐링 처리를 실시하고, 또한 도금 처리를 실시하는 고강도 용융 아연 도금 강판의 제조 방법. - 제 6 항에 있어서,
상기 도금 처리가 용융 아연 도금 처리, 합금화 용융 아연 도금 처리 중 어느 것인 고강도 용융 아연 도금 강판의 제조 방법. - 제 6 항 또는 제 7 항에 있어서,
상기 도금 처리에 있어서 형성되는 도금층의 조성은, 질량% 로, Fe : 5.0 ∼ 20.0 %, Al : 0.001 % ∼ 1.0 %, Pb, Sb, Si, Sn, Mg, Mn, Ni, Cr, Co, Ca, Cu, Li, Ti, Be, Bi, REM 의 1 종 또는 2 종 이상을 합계로 0 % ∼ 3.5 % 함유하고, 잔부가 Zn 및 불가피 불순물로 이루어지는 고강도 용융 아연 도금 강판의 제조 방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2014-258604 | 2014-12-22 | ||
| JP2014258604 | 2014-12-22 | ||
| PCT/JP2015/003845 WO2016103534A1 (ja) | 2014-12-22 | 2015-07-30 | 高強度溶融亜鉛めっき鋼板およびその製造方法 |
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| Publication Number | Publication Date |
|---|---|
| KR20170086098A true KR20170086098A (ko) | 2017-07-25 |
| KR101913529B1 KR101913529B1 (ko) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020177017046A Active KR101913529B1 (ko) | 2014-12-22 | 2015-07-30 | 고강도 용융 아연 도금 강판 및 그 제조 방법 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5958667B1 (ko) |
| KR (1) | KR101913529B1 (ko) |
| CN (1) | CN107109564B (ko) |
| MX (1) | MX2017008296A (ko) |
| WO (1) | WO2016103534A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200131331A (ko) * | 2018-03-28 | 2020-11-23 | 가부시키가이샤 고베 세이코쇼 | 합금화 용융 아연도금 강판, 및 합금화 용융 아연도금 강판의 제조 방법 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018043453A1 (ja) * | 2016-08-30 | 2018-03-08 | Jfeスチール株式会社 | 薄鋼板およびその製造方法 |
| US11091817B2 (en) | 2016-08-30 | 2021-08-17 | Jfe Steel Corporation | High-strength steel sheet and method for manufacturing the same |
| WO2019106894A1 (ja) * | 2017-11-29 | 2019-06-06 | Jfeスチール株式会社 | 高強度亜鉛めっき鋼板およびその製造方法 |
| KR102020412B1 (ko) | 2017-12-22 | 2019-09-10 | 주식회사 포스코 | 충돌특성 및 성형성이 고강도 강판 및 이의 제조방법 |
| CN110643915A (zh) * | 2018-06-27 | 2020-01-03 | 灿诺环保科技(昆山)有限公司 | 一种具有净化功能的热镀专用锌 |
| KR102497571B1 (ko) | 2019-01-18 | 2023-02-08 | 제이에프이 스틸 가부시키가이샤 | 고강도 용융 아연 도금 강판 및 그의 제조 방법 |
| WO2020158066A1 (ja) * | 2019-01-30 | 2020-08-06 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
| US12410491B2 (en) | 2019-01-30 | 2025-09-09 | Jfe Steel Corporation | High-strength steel sheet and method for producing the same |
| JP7389322B2 (ja) * | 2019-08-20 | 2023-11-30 | 日本製鉄株式会社 | 薄鋼板及びその製造方法 |
| KR102897544B1 (ko) * | 2020-09-07 | 2025-12-09 | 아르셀러미탈 | 강의 단조 부품 및 그 제조 방법 |
| CN117321235A (zh) * | 2021-05-26 | 2023-12-29 | 株式会社神户制钢所 | 高强度合金化熔融镀锌钢板及其制造方法 |
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| KR20120031510A (ko) * | 2009-07-30 | 2012-04-03 | 제이에프이 스틸 가부시키가이샤 | 고강도 강판 및 그 제조 방법 |
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| JP5365216B2 (ja) * | 2008-01-31 | 2013-12-11 | Jfeスチール株式会社 | 高強度鋼板とその製造方法 |
| JP5251208B2 (ja) * | 2008-03-28 | 2013-07-31 | Jfeスチール株式会社 | 高強度鋼板とその製造方法 |
| US9115416B2 (en) * | 2011-12-19 | 2015-08-25 | Kobe Steel, Ltd. | High-yield-ratio and high-strength steel sheet excellent in workability |
| JP5867278B2 (ja) * | 2012-05-07 | 2016-02-24 | 新日鐵住金株式会社 | 常中温域での成形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 |
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- 2015-07-30 KR KR1020177017046A patent/KR101913529B1/ko active Active
- 2015-07-30 WO PCT/JP2015/003845 patent/WO2016103534A1/ja not_active Ceased
- 2015-07-30 MX MX2017008296A patent/MX2017008296A/es unknown
- 2015-07-30 CN CN201580069934.3A patent/CN107109564B/zh active Active
- 2015-07-30 JP JP2015558274A patent/JP5958667B1/ja active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120031510A (ko) * | 2009-07-30 | 2012-04-03 | 제이에프이 스틸 가부시키가이샤 | 고강도 강판 및 그 제조 방법 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200131331A (ko) * | 2018-03-28 | 2020-11-23 | 가부시키가이샤 고베 세이코쇼 | 합금화 용융 아연도금 강판, 및 합금화 용융 아연도금 강판의 제조 방법 |
| US11408047B2 (en) | 2018-03-28 | 2022-08-09 | Kobe Steel, Ltd. | Alloyed hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107109564B (zh) | 2019-08-30 |
| JPWO2016103534A1 (ja) | 2017-04-27 |
| MX2017008296A (es) | 2017-10-02 |
| KR101913529B1 (ko) | 2018-10-30 |
| JP5958667B1 (ja) | 2016-08-02 |
| CN107109564A (zh) | 2017-08-29 |
| WO2016103534A1 (ja) | 2016-06-30 |
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