KR100979020B1 - 초심가공용 고강도 박강판과 그 제조방법 - Google Patents
초심가공용 고강도 박강판과 그 제조방법 Download PDFInfo
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- KR100979020B1 KR100979020B1 KR1020030042396A KR20030042396A KR100979020B1 KR 100979020 B1 KR100979020 B1 KR 100979020B1 KR 1020030042396 A KR1020030042396 A KR 1020030042396A KR 20030042396 A KR20030042396 A KR 20030042396A KR 100979020 B1 KR100979020 B1 KR 100979020B1
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- 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
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/04—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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
Claims (8)
- 중량%로, C:0.010%이하, Si:0.02%이하, Mn:1.5%이하(0은 제외), P:0.03-0.15%, S:0.02%이하, Sol.Al:0.151~0.40%, N:0.004%이하, Ti:0.005-0.040%, Nb:0.002-0.020%, 여기에 B:0.0001-0.0020%와 Mo:0.005~0.02%에서 선택된 1종, 나머지 Fe 및 기타 불가피한 불순물로 조성되고,상기 P, Mn, Ti, Nb, B은 원하는 강도에 따라 관계식 1를 만족하며,[관계식 1-1]-인장강도 35급, 40kg급29.1+89.4P(%)+3.9Mn(%)-133.8Ti(%)+157.5Nb(%)+0.18[B(ppm) 또는 Mo(%)]=35~44.9[관계식 1-2]-인장강도 45kg급29.1+98.3P(%)+4.6Mn(%)-86.5Ti(%)+62.5Nb(%)+0.21[B(ppm) 또는 Mo(%)]=45~50상기 Ti, N, C, Nb은 다음의 관계식 2, 3을 만족하며,[관계식 2]0.6 ≤(1/0.65)(Ti-3.43N)/4C ≤3.5,[관계식 3]0.4≤(1/0.35)(Nb/7.75C) ≤2.2Ti계와 Nb계 석출물이 30~60nm의 평균크기로 분포되는 것을 특징으로 하는 초심가공용 고강도 박강판.
- 중량%로, C:0.010%이하, Si:0.02%이하, Mn:1.5%이하(0은 제외), P:0.03-0.15%, S:0.02%이하, Sol.Al:0.151~0.40%, N:0.004%이하, Ti:0.005-0.040%, Nb:0.002-0.020%, 여기에 B:0.0001-0.0020%와 Mo:0.005~0.02%에서 선택된 1종, 나머지 Fe 및 기타 불가피한 불순물로 조성되고,상기 P, Mn, Ti, Nb, B은 원하는 강도에 따라 관계식 1를 만족하며,[관계식 1-1]-인장강도 35급, 40kg급29.1+89.4P(%)+3.9Mn(%)-133.8Ti(%)+157.5Nb(%)+0.18[B(ppm) 또는 Mo(%)]=35~44.9[관계식 1-2]-인장강도 45kg급29.1+98.3P(%)+4.6Mn(%)-86.5Ti(%)+62.5Nb(%)+0.21[B(ppm) 또는 Mo(%)]=45~50상기 Ti, N, C, Nb은 다음의 관계식 2, 3을 만족하며,[관계식 2]0.6 ≤(1/0.65)(Ti-3.43N)/4C ≤3.5,[관계식 3]0.4≤(1/0.35)(Nb/7.75C) ≤2.2Ti계와 Nb계 석출물이 30~60nm의 평균크기로 분포되고, 강판 표면에 아연도금층을 갖으며, 상기 강판의 Al의 함량은 다음의 관계, 도금층 무게 감량=-0.0642Ln(강중 sol. Al의 함량(%))-0.0534에 의해 구해진 Al의 함량 이상으로 함유되는 것을 특징으로 하는 내파우더링성이 우수한 초심가공용 고강도 박강판.
- 삭제
- 제 1항 또는 제 2항에 있어서, 상기 Al은 0.21~0.4%임을 특징으로 하는 초심가공용 고강도 박강판.
- 중량%로, C:0.010%이하, Si:0.02%이하, Mn:1.5%이하(0은 제외), P:0.03-0.15%, S:0.02%이하, Sol.Al:0.151~0.40%, N:0.004%이하, Ti:0.005-0.040%, Nb:0.002-0.020%, 여기에 B:0.0001-0.0020%와 Mo:0.005~0.02%에서 선택된 1종, 나머지 Fe 및 기타 불가피한 불순물로 조성되고,상기 P, Mn, Ti, Nb, B은 원하는 강도에 따라 관계식 1를 만족하며,[관계식 1-1]-인장강도 35급, 40kg급29.1+89.4P(%)+3.9Mn(%)-133.8Ti(%)+157.5Nb(%)+0.18[B(ppm) 또는 Mo(%)]=35~44.9[관계식 1-2]-인장강도 45kg급29.1+98.3P(%)+4.6Mn(%)-86.5Ti(%)+62.5Nb(%)+0.21[B(ppm) 또는 Mo(%)]=45~50상기 Ti, N, C, Nb은 다음의 관계식 2, 3[관계식 2]0.6 ≤(1/0.65)(Ti-3.43N)/4C ≤3.5,[관계식 3]0.4≤(1/0.35)(Nb/7.75C) ≤2.2를 만족하는 강 슬라브를오스테나이트 단상역에서 열간마무리압연을 완료하여 다음의 조건, 730√(1-(Ti*/0.027)2) ± 15℃[여기서, Ti*=Ti(%)-3.43N(%)]를 만족하는 온도에서 권취한 다음, 냉간압연한 후, 780℃~830℃의 온도구간에서 연속소둔하는 것을 포함하여 이루어지는 초심가공용 고강도 박강판의 제조방법.
- 삭제
- 제 5항에 있어서, 상기 Al은 0.21~0.4%임을 특징으로 하는 초심가공용 고강도 박강판의 제조방법.
- 삭제
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20020036625 | 2002-06-28 | ||
| KR1020020036625 | 2002-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040002768A KR20040002768A (ko) | 2004-01-07 |
| KR100979020B1 true KR100979020B1 (ko) | 2010-08-31 |
Family
ID=29997397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030042396A Expired - Lifetime KR100979020B1 (ko) | 2002-06-28 | 2003-06-27 | 초심가공용 고강도 박강판과 그 제조방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20040250930A1 (ko) |
| EP (1) | EP1518001A4 (ko) |
| JP (1) | JP4414883B2 (ko) |
| KR (1) | KR100979020B1 (ko) |
| CN (1) | CN1273632C (ko) |
| WO (1) | WO2004003247A1 (ko) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060037677A1 (en) * | 2004-02-25 | 2006-02-23 | Jfe Steel Corporation | High strength cold rolled steel sheet and method for manufacturing the same |
| JP4613618B2 (ja) * | 2004-02-25 | 2011-01-19 | Jfeスチール株式会社 | 深絞り成形性に優れた高強度冷延鋼板およびその製造方法 |
| JP4559918B2 (ja) * | 2004-06-18 | 2010-10-13 | 新日本製鐵株式会社 | 加工性に優れたブリキおよびテインフリースチール用鋼板およびその製造方法 |
| JP4561200B2 (ja) * | 2004-06-30 | 2010-10-13 | Jfeスチール株式会社 | 耐二次加工脆性に優れた高強度冷延鋼板およびその製造方法 |
| EP1888799B1 (en) * | 2005-05-03 | 2017-03-15 | Posco | Cold rolled steel sheet having superior formability, process for producing the same |
| KR100742819B1 (ko) * | 2005-05-03 | 2007-07-25 | 주식회사 포스코 | 면내이방성이 우수한 냉연강판과 그 제조방법 |
| KR100685030B1 (ko) * | 2005-07-08 | 2007-02-20 | 주식회사 포스코 | 내2차가공취성, 피로특성 및 도금특성이 우수한 심가공용박강판 및 그 제조방법 |
| KR100685037B1 (ko) * | 2005-09-23 | 2007-02-20 | 주식회사 포스코 | 내시효성이 우수한 고장력 소부경화형 냉간압연강판,용융도금강판 및 냉연강판의 제조방법 |
| KR100711362B1 (ko) * | 2005-12-07 | 2007-04-27 | 주식회사 포스코 | 도금특성 및 연신특성이 우수한 고강도 박강판 및 그제조방법 |
| KR101066673B1 (ko) * | 2008-09-29 | 2011-09-21 | 현대제철 주식회사 | 표면품질이 우수한 냉연강판의 제조방법 |
| CN102912227A (zh) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | 一种软质镀锡原钢板及其制造方法 |
| KR101611695B1 (ko) | 2013-12-20 | 2016-04-14 | 주식회사 포스코 | 드로잉성이 우수한 고강도 박강판 및 그 제조방법 |
| CN107928720B (zh) * | 2017-12-27 | 2019-10-11 | 海盐纵诚物资有限公司 | 外科手术用工具 |
| KR102276818B1 (ko) * | 2018-04-02 | 2021-07-15 | 닛폰세이테츠 가부시키가이샤 | 금속판, 금속판의 제조 방법, 금속판의 성형품의 제조 방법, 및 금속판의 성형품 |
| CN108998723A (zh) * | 2018-06-14 | 2018-12-14 | 河钢股份有限公司 | 一种耐高温加速时效性钢板及其生产方法 |
| KR102484978B1 (ko) * | 2020-12-11 | 2023-01-05 | 주식회사 포스코 | 내파우더링성이 우수한 고강도 합금화 용융아연도금강판 및 그 제조방법 |
| KR102451002B1 (ko) * | 2020-12-15 | 2022-10-11 | 주식회사 포스코 | 강도, 성형성 및 표면 품질이 우수한 도금강판 및 이의 제조방법 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05247540A (ja) * | 1992-03-04 | 1993-09-24 | Kawasaki Steel Corp | 深絞り用高強度冷延鋼板およびその製造方法 |
| JPH10158745A (ja) | 1996-12-04 | 1998-06-16 | Nkk Corp | 加工性に優れた冷延鋼板及び溶融亜鉛めっき鋼板の製造方法 |
| KR20020047573A (ko) * | 2000-12-13 | 2002-06-22 | 이구택 | 드로잉성이 우수한 초심가공용 고강도 냉연강판의 제조방법 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504326A (en) * | 1982-10-08 | 1985-03-12 | Nippon Steel Corporation | Method for the production of cold rolled steel sheet having super deep drawability |
| JPS63243226A (ja) * | 1987-03-31 | 1988-10-11 | Kawasaki Steel Corp | 耐2次加工脆性に優れた超深絞り用冷延鋼板の製造方法 |
| JPH02173242A (ja) | 1988-12-26 | 1990-07-04 | Kawasaki Steel Corp | 加工用高張力冷延鋼板およびその製造方法 |
| JP2529906B2 (ja) * | 1990-11-15 | 1996-09-04 | 新日本製鐵株式会社 | 加工性の優れた高強度合金化溶融亜鉛めっき鋼板の製造方法 |
| JP3043883B2 (ja) | 1992-02-25 | 2000-05-22 | 川崎製鉄株式会社 | 深絞り性に優れた高強度冷延鋼板及び亜鉛めっき鋼板の製造方法 |
| JPH05263185A (ja) | 1992-03-23 | 1993-10-12 | Nippon Steel Corp | 成形性の良好な高強度冷延鋼板と溶融亜鉛メッキ高強度冷延鋼板およびそれらの製造方法 |
| US5360493A (en) * | 1992-06-08 | 1994-11-01 | Kawasaki Steel Corporation | High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same |
| US5690755A (en) * | 1992-08-31 | 1997-11-25 | Nippon Steel Corporation | Cold-rolled steel sheet and hot-dip galvanized cold-rolled steel sheet having excellent bake hardenability, non-aging properties at room temperature and good formability and process for producing the same |
| CN1117884C (zh) * | 1998-09-29 | 2003-08-13 | 川崎制铁株式会社 | 高强度薄钢板、高强度合金化热镀锌钢板及它们的制造方法 |
| JP2000313936A (ja) * | 1999-04-27 | 2000-11-14 | Kobe Steel Ltd | 延性に優れた合金化溶融亜鉛めっき鋼板およびその製造方法 |
| ATE464402T1 (de) * | 1999-09-16 | 2010-04-15 | Jfe Steel Corp | Verfahren zur herstellung einer dünnen stahlplatte mit hoher festigkeit |
| EP1143019B1 (en) * | 1999-09-29 | 2014-11-26 | JFE Steel Corporation | Method for manufacturing a coiled steel sheet |
| CN1190513C (zh) * | 2000-06-20 | 2005-02-23 | 杰富意钢铁株式会社 | 薄钢板及其制造方法 |
-
2003
- 2003-06-27 US US10/494,202 patent/US20040250930A1/en not_active Abandoned
- 2003-06-27 KR KR1020030042396A patent/KR100979020B1/ko not_active Expired - Lifetime
- 2003-06-27 CN CNB03801419XA patent/CN1273632C/zh not_active Expired - Lifetime
- 2003-06-27 EP EP03761856A patent/EP1518001A4/en not_active Withdrawn
- 2003-06-27 WO PCT/KR2003/001260 patent/WO2004003247A1/en not_active Ceased
- 2003-06-27 JP JP2004517382A patent/JP4414883B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-18 US US12/016,241 patent/US7806998B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05247540A (ja) * | 1992-03-04 | 1993-09-24 | Kawasaki Steel Corp | 深絞り用高強度冷延鋼板およびその製造方法 |
| JPH10158745A (ja) | 1996-12-04 | 1998-06-16 | Nkk Corp | 加工性に優れた冷延鋼板及び溶融亜鉛めっき鋼板の製造方法 |
| KR20020047573A (ko) * | 2000-12-13 | 2002-06-22 | 이구택 | 드로잉성이 우수한 초심가공용 고강도 냉연강판의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1273632C (zh) | 2006-09-06 |
| EP1518001A1 (en) | 2005-03-30 |
| US20080210346A1 (en) | 2008-09-04 |
| JP2005520054A (ja) | 2005-07-07 |
| US7806998B2 (en) | 2010-10-05 |
| JP4414883B2 (ja) | 2010-02-10 |
| CN1578845A (zh) | 2005-02-09 |
| WO2004003247A1 (en) | 2004-01-08 |
| US20040250930A1 (en) | 2004-12-16 |
| KR20040002768A (ko) | 2004-01-07 |
| EP1518001A4 (en) | 2006-01-11 |
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