KR100797238B1 - 가공성이 우수한 심가공용 박강판의 제조방법 - Google Patents
가공성이 우수한 심가공용 박강판의 제조방법 Download PDFInfo
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- KR100797238B1 KR100797238B1 KR1020060134129A KR20060134129A KR100797238B1 KR 100797238 B1 KR100797238 B1 KR 100797238B1 KR 1020060134129 A KR1020060134129 A KR 1020060134129A KR 20060134129 A KR20060134129 A KR 20060134129A KR 100797238 B1 KR100797238 B1 KR 100797238B1
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 41
- 239000002244 precipitate Substances 0.000 claims abstract description 28
- 238000005097 cold rolling Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 5
- 238000003303 reheating Methods 0.000 claims abstract description 5
- 239000010960 cold rolled steel Substances 0.000 claims abstract description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000007747 plating Methods 0.000 abstract description 24
- 238000000137 annealing Methods 0.000 abstract description 16
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005246 galvanizing Methods 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 239000006104 solid solution Substances 0.000 description 8
- 238000005728 strengthening Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
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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
- C21D8/04—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
-
- 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
- C21D8/0463—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 following 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
- C21D8/0447—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
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
Landscapes
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
강종 | 화학성분(중량%, B은 ppm) | 비고 | |||||||||||||
C | Si | Mn | P | S | S.Al | N | Ti | Nb | B | Mo | Sb | Sn | |||
1 | 0.003 | 0.02 | 0.12 | 0.008 | 0.007 | 0.11 | 0.003 | 0.008 | 0.015 | 3 | - | 0.02 | - | 발명강 | 인장강도 28kg/mm2급 |
2 | 0.001 | 0.02 | 0.09 | 0.005 | 0.008 | 0.09 | 0.002 | 0.008 | 0.014 | 4 | - | 0.03 | - | 발명강 | |
3 | 0.003 | 0.02 | 0.08 | 0.008 | 0.012 | 0.04 | 0.002 | 0.02 | 0.019 | - | - | - | - | 비교강 | |
4 | 0.004 | 0.02 | 0.58 | 0.038 | 0.01 | 0.21 | 0.003 | 0.007 | 0.024 | 5 | 0.02 | 0.04 | - | 발명강 | 인장강도 35kg/mm2급 |
5 | 0.002 | 0.02 | 0.54 | 0.042 | 0.008 | 0.08 | 0.002 | 0.008 | 0.009 | 8 | 0.02 | 0.04 | - | 발명강 | |
6 | 0.003 | 0.02 | 0.38 | 0.058 | 0.012 | 0.04 | 0.003 | 0.048 | - | 4 | - | - | - | 비교강 | |
7 | 0.003 | 0.02 | 0.76 | 0.084 | 0.007 | 0.24 | 0.002 | 0.007 | 0.028 | 11 | 0.03 | 0.04 | 발명강 | 인장강도 40kg/mm2급 | |
8 | 0.003 | 0.02 | 0.84 | 0.091 | 0.008 | 0.34 | 0.003 | 0.006 | 0.01 | 7 | 0.03 | - | 0.03 | 발명강 | |
9 | 0.003 | 0.02 | 0.78 | 0.094 | 0.01 | 0.05 | 0.002 | 0.049 | - | 9 | - | - | - | 비교강 | |
10 | 0.002 | 0.02 | 1.12 | 0.091 | 0.007 | 0.14 | 0.003 | 0.006 | 0.028 | 10 | 0.03 | 0.03 | 0.01 | 발명강 | 인장강도 45kg/mm2급 |
11 | 0.003 | 0.02 | 1.15 | 0.087 | 0.012 | 0.05 | 0.002 | 0.008 | 0.026 | 11 | 0.03 | 0.04 | - | 발명강 | |
12 | 0.004 | 0.02 | 0.83 | 0.095 | 0.009 | 0.04 | 0.003 | 0.043 | - | 7 | - | - | - | 비교강 |
강종 | 조압연/마무리 압연 압하비 | 마무리압연시냉각속도 (℃/sec) | 냉간 압하율 (%) | 연속소둔온도 (℃) | 인장 강도 (kg/mm2) | 연신율 (%) | r값 | 석출물 평균 크기 (nm) | 도금특성 (내파우더링성) | 비고 | |
1 | 2.8 | 32 | 73 | 835 | 29.7 | 50.7 | 2.24 | 40 | 1 | 발명강 | 인장 강도 28kg급 |
2 | 2.8 | 34 | 73 | 835 | 28.9 | 49.8 | 2.32 | 42 | 1 | ||
3 | 5.2 | 20 | 73 | 830 | 29.9 | 47.9 | 1.92 | 12 | 2 | 비교강 | |
4 | 3.2 | 38 | 75 | 815 | 36.1 | 45.0 | 2.20 | 51 | 1 | 발명강 | 인장 강도 35kg급 |
5 | 3.2 | 38 | 75 | 810 | 36.8 | 44.3 | 2.35 | 54 | 1 | ||
6 | 5.2 | 15 | 75 | 830 | 35.4 | 45.3 | 1.84 | 23 | 3 | 비교강 | |
7 | 3.5 | 35 | 73 | 798 | 41.6 | 37.0 | 2.26 | 49 | 1 | 발명강 | 인장 강도 40kg급 |
8 | 3.5 | 33 | 73 | 825 | 42.1 | 36.7 | 2.41 | 52 | 1 | ||
9 | 4.5 | 16 | 73 | 830 | 41.4 | 37.2 | 1.81 | 18 | 4 | 비교강 | |
10 | 3.7 | 38 | 68 | 793 | 45.5 | 33.9 | 2.10 | 52 | 1 | 발명강 | 인장 강도 45kg급 |
11 | 3.7 | 39 | 68 | 812 | 46.3 | 33.2 | 2.13 | 55 | 2 | ||
12 | 4.5 | 17 | 68 | 840 | 45.2 | 34.2 | 1.78 | 21 | 4 | 비교강 |
Claims (1)
- 중량%로, C: 0.010% 이하, Si: 0.4% 이하, Mn: 0.06%~1.5%, P: 0.03~0.15% 이하, S: 0.020% 이하, Sol.Al: 0.40% 이하, N: 0.010% 이하, Ti: 0.003-0.05%, Nb: 0.003-0.05%, Mo: 0.10% 이하, B: 0.0002-0.0030%, 여기에 Sb: 0.005~ 0.10%, Sn: 0.005~0.10% 중의 적어도 1종을 포함하여 나머지 Fe 및 기타 불가피한 불순물로 조성된 강 슬라브를 재가열하는 단계;상기 재가열한 강 슬라브를 조압연/마무리압연의 압하배분비가 1.0(50%:50%) ~4.0(80%:20%)가 되도록 하면서 마무리 압연시 최종 3패스의 스트립 냉각속도가 30℃/초 이상이 되도록 오오스테나이트 단상역에서 마무리압연을 완료하는 단계;상기 마무리 압연된 강판을 권취하는 단계;상기 권취한 열연판을 60% 이상의 냉간압하율로 냉간압연을 실시하는 단계;상기 냉간압연된 강판을 780℃~860℃의 온도구간에서 연속소둔하는 단계;를 포함하여 이루어지고, 석출물의 평균 크기가 20~60nm를 만족하는 용융아연 도금특성이 우수한 심가공용 박강판의 제조방법.
Priority Applications (2)
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KR1020060134129A KR100797238B1 (ko) | 2006-12-26 | 2006-12-26 | 가공성이 우수한 심가공용 박강판의 제조방법 |
PCT/KR2007/006628 WO2008078901A1 (en) | 2006-12-26 | 2007-12-18 | The method for manufacturing thin steel sheet for deep drawing having excellent workability |
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KR1020060134129A KR100797238B1 (ko) | 2006-12-26 | 2006-12-26 | 가공성이 우수한 심가공용 박강판의 제조방법 |
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Cited By (3)
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KR101228746B1 (ko) * | 2009-02-09 | 2013-01-31 | 주식회사 포스코 | 가공성이 우수한 심가공용 냉연강판 및 그 제조방법 |
KR20190112298A (ko) * | 2017-02-17 | 2019-10-04 | 뵈스트알파인 스탈 게엠베하 | 강판(鋼板)의 제조 방법, 강판, 및 그 용도 |
CN113528934A (zh) * | 2021-06-01 | 2021-10-22 | 包头钢铁(集团)有限责任公司 | 一种340MPa级轿车后备胎底板用热镀锌高强IF钢及其制备方法 |
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JP6187028B2 (ja) * | 2012-08-22 | 2017-08-30 | 新日鐵住金株式会社 | 生産性とプレス成形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 |
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CN109811264B (zh) * | 2019-03-26 | 2020-06-02 | 攀钢集团攀枝花钢铁研究院有限公司 | 抗拉强度不小于600MPa的高扩孔钢板的制备方法 |
CN109778075B (zh) * | 2019-04-02 | 2020-03-20 | 东北大学 | 一种高屈强比且连续屈服的中锰钢材料的制备方法 |
Citations (6)
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JPH05230614A (ja) * | 1992-02-21 | 1993-09-07 | Nkk Corp | 深絞り用高強度溶融亜鉛メッキ鋼板の製造方法 |
JPH0657337A (ja) * | 1992-08-10 | 1994-03-01 | Nippon Steel Corp | 成形性に優れた高強度合金化溶融亜鉛めっき鋼板の製造方法 |
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KR101228746B1 (ko) * | 2009-02-09 | 2013-01-31 | 주식회사 포스코 | 가공성이 우수한 심가공용 냉연강판 및 그 제조방법 |
KR20190112298A (ko) * | 2017-02-17 | 2019-10-04 | 뵈스트알파인 스탈 게엠베하 | 강판(鋼板)의 제조 방법, 강판, 및 그 용도 |
KR102321290B1 (ko) | 2017-02-17 | 2021-11-05 | 뵈스트알파인 스탈 게엠베하 | 강판(鋼板)의 제조 방법, 강판, 및 그 용도 |
CN113528934A (zh) * | 2021-06-01 | 2021-10-22 | 包头钢铁(集团)有限责任公司 | 一种340MPa级轿车后备胎底板用热镀锌高强IF钢及其制备方法 |
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