KR20160117543A - 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 - Google Patents
열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 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
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- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
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Abstract
Description
도 2 는 Nb 첨가를 갖거나 Nb 첨가를 갖지 않는 경우에 C 의 양이 0.06 내지 0.18 wt% 의 범위일 때에 다양한 스틸 시트 조성물들에 대해 C 에 따른 인장 강도 (MPa) 에서의 변화를 도시하고,
도 3 은 ℃ 의 온도로서 냉각 커브들 대 초당 로그 타임을 도시하는 본 발명에 따는 스틸에 대한 연속적인 냉각 변태 (CCT) 다이어그램을 도시하고,
도 4a-도 4d 는 상이한 냉각률들로 냉각된 본 발명의 스틸의 다양한 변경예들을 찍은 현미경 사진이고,
도 5 는 용접 전류 대 본 발명의 스틸에 대한 샘플 수의 도면이고, 상기 도면은 스폿 용접에서 스틸의 중간 플래시 (expulsion) 의 비산란을 구체적으로 도시하고
도 6a - 도 6d 는 본 발명의 스틸의 완전한 스폿 용접 (6a), 베이스 금속의 보다 높은 확대율 (6b), 열 영향받은 구역 (6c), 및 스폿 용접의 용접 구역 (6d) 을 나타내는 4 개 (4) 의 컬렉션이다.
Claims (17)
- 스틸 시트로서, 중량% 로
0.04≤ C≤ 0.30,
0.5≤ Mn≤ 4,
0≤ Cr≤ 4,
2.7≤ Mn+Cr≤ 5,
0.003≤ Nb≤ 0.1,
0.015≤ Al≤ 0.1, 및
0.05≤ Si≤ 1.0 를 포함하고,
상기 스틸 시트는 800-1400 MPa 의 범위의 인장 강도를 갖는, 스틸 시트. - 제 1 항에 있어서,
0.06≤ C≤ 0.18 인, 스틸 시트. - 제 1 항에 있어서,
0.08≤ C≤ 0.16 인, 스틸 시트. - 제 1 항에 있어서,
0.2≤ Mn≤ 3.5 인, 스틸 시트. - 제 1 항에 있어서,
0.5≤ Mn≤ 3.0 인, 스틸 시트. - 제 1 항에 있어서,
0.2≤ Cr≤ 3.5 인, 스틸 시트. - 제 1 항에 있어서,
0.5≤ Cr≤ 3.0 인, 스틸 시트. - 제 1 항에 있어서,
3.0≤ Mn+Cr≤ 4.7 인, 스틸 시트. - 제 1 항에 있어서,
3.3≤ Mn+Cr≤ 4.4 인 스틸 시트. - 제 1 항에 있어서,
0.005≤ Nb≤ 0.060 인, 스틸 시트. - 제 1 항에 있어서,
0.010≤ Nb≤ 0.055 인, 스틸 시트. - 제 1 항에 있어서,
상기 스틸 시트의 적어도 하나의 표면은 Zn, Al 또는 Al 합금을 포함하는 층으로 코팅되는, 스틸 시트. - 제 1 항에 있어서,
상기 스틸 시트는 95 내지 100 면적% 의 마르텐사이트를 포함하는 마이크로 구조를 갖는, 스틸 시트. - 제 1 항에 있어서,
상기 스틸 시트는 95 내지 100 면적% 의 베이나이트를 포함하는 마이크로 구조를 갖는, 스틸 시트. - 제 1 항에 있어서,
상기 스틸 시트는 열간 성형된 스틸 시트인, 스틸 시트. - 스틸 시트를 제조하는 방법으로서,
상기 방법은 중량% 로,
0.04≤ C≤ 0.20,
0≤ Mn≤ 4,
0≤ Cr≤ 4,
2.7≤ Mn+Cr≤ 5,
0.003≤ Nb≤ 0.055,
0.015≤ Al≤ 0.1 및
0.05≤ Si≤ 0.35 를 포함하는 스틸 조성물을 열간 롤링하는 단계 및
제 1 항에 따른 상기 스틸 시트를 제조하는 단계를 포함하는, 스틸 시트를 제조하는 방법. - 스틸 시트를 사용하는 방법으로서,
상기 방법은 제 1 항에 따른 상기 스틸 시트를 열간 성형하는 단계를 포함하는, 스틸 시트를 사용하는 방법.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461935948P | 2014-02-05 | 2014-02-05 | |
| US61/935,948 | 2014-02-05 | ||
| PCT/US2015/014694 WO2015120205A1 (en) | 2014-02-05 | 2015-02-05 | Hot formable, air hardenable, weldable, steel sheet |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020187026542A Division KR20180104199A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160117543A true KR20160117543A (ko) | 2016-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020217011542A Ceased KR20210047366A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
| KR1020167024062A Ceased KR20160117543A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
| KR1020187026542A Ceased KR20180104199A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020217011542A Ceased KR20210047366A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020187026542A Ceased KR20180104199A (ko) | 2014-02-05 | 2015-02-05 | 열간 성형 가능하고, 공기 경화 가능하고, 용접 가능한 스틸 시트 |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP3114246B1 (ko) |
| JP (2) | JP2017510703A (ko) |
| KR (3) | KR20210047366A (ko) |
| CN (2) | CN105980591A (ko) |
| BR (1) | BR112016018119B8 (ko) |
| CA (1) | CA2938851C (ko) |
| ES (1) | ES2746260T3 (ko) |
| HU (1) | HUE045244T2 (ko) |
| MA (1) | MA39245B2 (ko) |
| MX (1) | MX388136B (ko) |
| PL (1) | PL3114246T3 (ko) |
| RU (1) | RU2695688C1 (ko) |
| UA (1) | UA119344C2 (ko) |
| WO (1) | WO2015120205A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR20190124757A (ko) * | 2017-03-01 | 2019-11-05 | 에이케이 스틸 프로퍼티즈 인코포레이티드 | 매우 높은 강도를 갖는 열간 압연 강 및 이의 제조 방법 |
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| WO2019157075A1 (en) * | 2018-02-06 | 2019-08-15 | Integrated Heat Treating Solutions, Llc | High pressure instantaneously uniform quench to control part properties |
| WO2020229877A1 (en) * | 2019-05-15 | 2020-11-19 | Arcelormittal | A cold rolled martensitic steel and a method for it's manufacture |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180078146A (ko) * | 2016-12-28 | 2018-07-09 | 연세대학교 산학협력단 | 온간성형용 고강도 중망간강과 그 제조방법 |
| KR20190124757A (ko) * | 2017-03-01 | 2019-11-05 | 에이케이 스틸 프로퍼티즈 인코포레이티드 | 매우 높은 강도를 갖는 열간 압연 강 및 이의 제조 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017510703A (ja) | 2017-04-13 |
| CA2938851A1 (en) | 2015-08-13 |
| MA39245A1 (fr) | 2017-03-31 |
| BR112016018119A2 (pt) | 2017-08-08 |
| UA119344C2 (uk) | 2019-06-10 |
| JP2019065396A (ja) | 2019-04-25 |
| JP6830468B2 (ja) | 2021-02-17 |
| RU2695688C1 (ru) | 2019-07-25 |
| KR20210047366A (ko) | 2021-04-29 |
| MX2016010006A (es) | 2016-12-16 |
| PL3114246T3 (pl) | 2020-03-31 |
| BR112016018119B8 (pt) | 2020-12-15 |
| BR112016018119B1 (pt) | 2020-11-17 |
| ES2746260T3 (es) | 2020-03-05 |
| CN105980591A (zh) | 2016-09-28 |
| HUE045244T2 (hu) | 2019-12-30 |
| MA39245B2 (fr) | 2021-04-30 |
| EP3114246A1 (en) | 2017-01-11 |
| CN113416892A (zh) | 2021-09-21 |
| CA2938851C (en) | 2020-06-09 |
| MX388136B (es) | 2025-03-19 |
| EP3114246B1 (en) | 2019-08-28 |
| WO2015120205A1 (en) | 2015-08-13 |
| EP3114246A4 (en) | 2018-04-04 |
| KR20180104199A (ko) | 2018-09-19 |
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