KR20030052352A - 성형성이 우수한 고장력강판과 그 제조방법 - Google Patents
성형성이 우수한 고장력강판과 그 제조방법 Download PDFInfo
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- KR20030052352A KR20030052352A KR1020010082242A KR20010082242A KR20030052352A KR 20030052352 A KR20030052352 A KR 20030052352A KR 1020010082242 A KR1020010082242 A KR 1020010082242A KR 20010082242 A KR20010082242 A KR 20010082242A KR 20030052352 A KR20030052352 A KR 20030052352A
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- steel sheet
- rolling
- steel
- tensile strength
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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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
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- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials 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 (3)
- 중량%로 C : 0.01%이하 , Mn : 1.0~3.0%, P : 0.04~0.10% , Si : 0.3~0.8%, S : 0.015% 이하, Sol-Al : 0.06% 이하, N : 0.005% 이하, Cu 0.5~1.0%, Ti : 0.01 - 0.04%, Nb는 다음의 조건, 6.63[C] ≤Nb ≤ 6.63[C] + 0.02%를 만족하고, 나머지 Fe와 기타 불가피하게 함유되는 불순물로 조성되는 성형성이 우수한 고장력강판.
- 제 1항에 있어서, 상기 고장력강판은 인장강도가 50Kg/㎟이상이며, rm값(수직이방성의 평균값)이 1.6이상임을 특징으로 하는 성형성이 우수한 고장력강판.
- 중량%로 C : 0.01%이하 , Mn : 1.0~3.0%, P : 0.04~0.10% , Si : 0.3~0.8%, S : 0.015% 이하, Sol-Al : 0.06% 이하, N : 0.005% 이하, Cu 0.5~1.0%, Ti : 0.01 - 0.04%, Nb는 다음의 조건, 6.63[C] ≤Nb ≤ 6.63[C] + 0.02%를 만족하고, 나머지 Fe와 기타 불가피하게 함유되는 불순물로 조성되는 알루미늄 킬드강을 1200∼1250℃의 온도범위에서 균질화처리후, 마무리압연온도 Ar3이상의 조건으로 열간압연하고, 550 -700℃에서 권취한 다음, 냉간압연하고, 800℃ 이상에서 연속소둔한 후 조질압연하는 것을 포함하여 이루어지는 성형성이 우수한 고장력강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR10-2001-0082242A KR100530075B1 (ko) | 2001-12-21 | 2001-12-21 | 성형성이 우수한 고장력강판과 그 제조방법 |
Applications Claiming Priority (1)
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KR10-2001-0082242A KR100530075B1 (ko) | 2001-12-21 | 2001-12-21 | 성형성이 우수한 고장력강판과 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20030052352A true KR20030052352A (ko) | 2003-06-27 |
KR100530075B1 KR100530075B1 (ko) | 2005-11-22 |
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Family Applications (1)
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KR10-2001-0082242A KR100530075B1 (ko) | 2001-12-21 | 2001-12-21 | 성형성이 우수한 고장력강판과 그 제조방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100530073B1 (ko) * | 2001-12-20 | 2005-11-22 | 주식회사 포스코 | 가공성이 우수한 고장력강판과 그 제조방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5884929A (ja) * | 1981-11-17 | 1983-05-21 | Nippon Steel Corp | 非時効性で塗装焼付硬化性の優れた深絞り用冷延鋼板の製造法 |
JPS5974232A (ja) * | 1982-10-20 | 1984-04-26 | Nippon Steel Corp | 極めて優れた二次加工性を有する超深絞り用焼付硬化性溶融亜鉛めつき鋼板の製造方法 |
JPS6013052A (ja) * | 1983-07-01 | 1985-01-23 | Nippon Kokan Kk <Nkk> | 超深絞り用冷延鋼板 |
JP2682327B2 (ja) * | 1992-02-19 | 1997-11-26 | 日本鋼管株式会社 | 焼付硬化性と深絞り性に優れた高強度冷延鋼板の製造方法 |
KR100240986B1 (ko) * | 1995-12-05 | 2000-03-02 | 이구택 | 2차 가공취성이 우수한 심가공용 고장력 냉간압연강판의 제조방법 |
KR100530073B1 (ko) * | 2001-12-20 | 2005-11-22 | 주식회사 포스코 | 가공성이 우수한 고장력강판과 그 제조방법 |
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2001
- 2001-12-21 KR KR10-2001-0082242A patent/KR100530075B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100530073B1 (ko) * | 2001-12-20 | 2005-11-22 | 주식회사 포스코 | 가공성이 우수한 고장력강판과 그 제조방법 |
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