KR20140138801A - 스케일이 발생하지 않는 열처리 가능한 강 및 상기 강으로 스케일이 발생하지 않는 부품을 제조하기 위한 방법 - Google Patents
스케일이 발생하지 않는 열처리 가능한 강 및 상기 강으로 스케일이 발생하지 않는 부품을 제조하기 위한 방법 Download PDFInfo
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Abstract
Description
2: 컨베이어 벨트
3, 3': 편향 롤러
4: 측면 실링
5: 용탕
6: 팬
7: 개구
8: 공급 용기
9: 스트립용 소재
10: 균질화 구역
11: 하우징
12: 제 1 스탠드
13: 유도 코일
14: 스탠드 어레이
15, 15', 15'': 롤러 스탠드
16: 평활화 스탠드
17: 냉각 거리
18: 완성된 핫 스트립
19, 19': 코일
20: 전단기
Claims (29)
- 중량%로 하기의 화학 조성을 특징으로 하는 경화된 또는 다이 경화된 부품을 제조하기에 특히 적합한 스케일이 발생하지 않는 열처리 가능한 강.
C: 0.04 내지 0.50
Mn: 0.5 내지 6.0
Al: 0.5 내지 3.0
Si: 0.05 내지 3.0
Cr: 0.05 내지 3.0
Ni: 3.0 미만
Cu: 3.0 미만
Ti: 0.010 내지 0.050 이하
B: 0.0015 내지 0.0040 이하
P: 0.10 미만
S: 0.05 미만
N: 0.020 미만
잔부의 철 및 불가피한 불순물. - 제 1 항에 있어서,
Al + Si + Cr ≥ 1 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 제 2 항에 있어서,
Al + Si + Cr ≥ 2 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 제 3 항에 있어서,
Al + Si + Cr ≥ 3 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
Mn + Ni + Cu ≥ 1 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 제 5 항에 있어서,
Mn + Ni + Cu ≥ 2 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 제 5 항에 있어서,
Mn + Ni + Cu ≥ 3 중량%인, 스케일이 발생하지 않는 열처리 가능한 강. - 반제품은 오스테나이트화 온도까지 가열되고, 필요한 경우 부품으로 형성되고, 후속하여 ?칭되는 제 1 항 내지 제 7 항 중 어느 한 항에 따른 강으로 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법으로서, 상기 가열은 질소 함유 분위기 내에서 실행되고, 상기 질소 함유 분위기는 또한 선택적으로 H2, CO 및 CO2를 포함할 수 있는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법.
- 제 8 항에 있어서,
상기 분위기는 0℃ 미만의 이슬점을 갖는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 8 항에 있어서,
상기 분위기는 -10℃ 미만의 이슬점을 갖는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 8 항에 있어서,
상기 분위기는 -20°C 미만의 이슬점을 갖는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 8 항에 있어서,
상기 분위기는 -30°C 미만의 이슬점을 갖는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 8 항 내지 제 12 항 중 어느 한 항에 있어서,
상기 오스테나이트화 온도까지의 가열은 유도적으로, 전도적으로 또는 복사에 의해 실행되는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 8 항 내지 제 13 항 중 어느 한 항에 있어서,
열간 또는 냉간 압연된 판금 또는 튜브가 반제품으로서 사용되는, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 제 14 항에 있어서,
상기 튜브는 핫 스트립으로부터 제조되는 이음매 없게 열간 압연된 튜브 또는 용접된 튜브인, 스케일이 발생하지 않는 경화된 부품을 제조하기 위한 방법. - 상기 용탕은 스트립용 소재(pre-strip)로 주조되고, 다음에 상기 스트립용 소재는 핫 스트립으로 압연되는 제 1 항 내지 제 7 항에 따른 강으로 핫 스트립을 제조하기 위한 방법으로서, 상기 용탕은 평정 유동(calm flow)의 상태 하에서 수평형 스트립 주조 시스템 내에서 스트립용 소재로 주조되고, 다음에 적어도 50 %의 변형도를 갖는 핫 스트립으로 압연되는, 핫 스트립을 제조하기 위한 방법.
- 제 16 항에 있어서,
상기 용탕의 공급 속도는 회전하는 컨베이어 벨트의 속도와 동등한, 핫 스트립을 제조하기 위한 방법. - 제 16 항 또는 제 17 항에 있어서,
대략 동일한 냉각 조건이 상기 컨베이어 벨트의 폭에 걸쳐 연장되는 밴드를 따라 상기 응고의 개시에 의해 형성되는 스트랜드 셸(strand shell)의 모든 표면 영역에 대해 제공되는, 핫 스트립을 제조하기 위한 방법. - 제 16 항 내지 제 18 항 중 어느 한 항에 있어서,
상기 컨베이어 벨트 상에 가해지는 상기 용탕은 상기 컨베이어 벨트의 단부에서 실질적으로 완전히 응고되는, 핫 스트립을 제조하기 위한 방법. - 제 19 항에 있어서,
완전 응고 후 및 추가의 공정 단계를 개시하기 전에, 상기 스트립용 소재는 균질화 구역을 통과하는, 핫 스트립을 제조하기 위한 방법. - 제 20 항에 있어서,
상기 추가의 공정 단계는 상기 스트립용 소재를 절단하여 플레이트를 형성하는 단계인, 핫 스트립을 제조하기 위한 방법. - 제 21 항에 있어서,
스트립용 소재를 절단하여 플레이트를 형성한 후, 상기 플레이트는 압연 온도까지 가열되고, 후속하여 압연되는, 핫 스트립을 제조하기 위한 방법. - 제 20 항에 있어서,
상기 추가의 공정 단계는 상기 스트립용 소재의 코일링(coiling) 단계인, 핫 스트립을 제조하기 위한 방법. - 제 23 항에 있어서,
상기 코일링 단계 후 상기 스트립용 소재는 압연 온도까지 가열되고, 후속하여 압연되는, 핫 스트립을 제조하기 위한 방법. - 제 23 항에 있어서,
상기 스트립용 소재는 언코일링(uncoiling) 단계 전에 재가열되는, 핫 스트립을 제조하기 위한 방법. - 제 16 항 내지 제 25 항 중 어느 한 항에 있어서,
상기 스트립용 소재는 인 라인식 압연 공정을 받고, 후속하여 코일링되는, 핫 스트립을 제조하기 위한 방법. - 제 16 항 내지 제 26 항 중 어느 한 항에 있어서,
압연 중에 상기 변형도는 70%를 초과하는, 핫 스트립을 제조하기 위한 방법. - 제 16 항 내지 제 27 항 중 어느 한 항에 있어서,
압연 중에 상기 변형도는 90%를 초과하는, 핫 스트립을 제조하기 위한 방법. - 제 16 항 내지 제 28 항 중 어느 한 항에 있어서,
상기 핫 스트립은 냉각 후에 냉간 압연되는, 핫 스트립을 제조하기 위한 방법.
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| DE102012006470.5 | 2012-03-23 | ||
| DE102013004905A DE102013004905A1 (de) | 2012-03-23 | 2013-03-15 | Zunderarmer Vergütungsstahl und Verfahren zur Herstellung eines zunderarmen Bauteils aus diesem Stahl |
| DE102013004905.9 | 2013-03-15 | ||
| PCT/DE2013/000165 WO2013139327A1 (de) | 2012-03-23 | 2013-03-19 | Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl |
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| KR20140138801A true KR20140138801A (ko) | 2014-12-04 |
| KR102054878B1 KR102054878B1 (ko) | 2020-01-22 |
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| EP (1) | EP2828414B1 (ko) |
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| DE (1) | DE102013004905A1 (ko) |
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| WO (1) | WO2013139327A1 (ko) |
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| US12049679B2 (en) | 2016-09-26 | 2024-07-30 | Posco Co., Ltd | Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same |
| US12467111B2 (en) | 2016-09-26 | 2025-11-11 | Posco Co., Ltd | Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102054878B1 (ko) | 2020-01-22 |
| RU2014142690A (ru) | 2016-05-20 |
| RU2618958C2 (ru) | 2017-05-11 |
| EP2828414B1 (de) | 2017-08-30 |
| EP2828414A1 (de) | 2015-01-28 |
| WO2013139327A1 (de) | 2013-09-26 |
| US10036085B2 (en) | 2018-07-31 |
| DE102013004905A1 (de) | 2013-09-26 |
| US20180237892A1 (en) | 2018-08-23 |
| US20150020992A1 (en) | 2015-01-22 |
| US10822681B2 (en) | 2020-11-03 |
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