KR100359241B1 - 초고가공용 고강도 합금화 용융아연도금강판의 제조방법 - Google Patents
초고가공용 고강도 합금화 용융아연도금강판의 제조방법 Download PDFInfo
- Publication number
- KR100359241B1 KR100359241B1 KR1019980053896A KR19980053896A KR100359241B1 KR 100359241 B1 KR100359241 B1 KR 100359241B1 KR 1019980053896 A KR1019980053896 A KR 1019980053896A KR 19980053896 A KR19980053896 A KR 19980053896A KR 100359241 B1 KR100359241 B1 KR 100359241B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel
- steel sheet
- dip galvanized
- annealing
- galvanized steel
- Prior art date
Links
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims abstract description 21
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 title abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000000137 annealing Methods 0.000 claims abstract description 29
- 238000005098 hot rolling Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 238000001953 recrystallisation Methods 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 239000006104 solid solution Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- 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
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
구분 | 성 분 계(wt%) | 비고 | |||||||
C | Mn | P | S | N | S.Al | Ti | Cr | ||
비교강 1 | 0.0031 | 0.07 | 0.008 | 0.0055 | 0.0033 | 0.045 | 0.052 | 0 | 극저탄소 IF강 |
비교강 2 | 0.0028 | 0.5 | 0.06 | 0.0048 | 0.0031 | 0.04 | 0.057 | 0 | P첨가 극저탄소 IF강 |
발명강 1 | 0.0019 | 0.6 | 0.041 | 0.0052 | 0.0025 | 0.038 | 0.018 | 0.5 | 초고성고강도 도금강판 |
발명강 2 | 0.0020 | 0.8 | 0.05 | 0.0054 | 0.0024 | 0.035 | 0.022 | 0.6 | 초고성고강도 도금강판 |
발명강 3 | 0.0017 | 1.1 | 0.058 | 0.0048 | 0.0023 | 0.04 | 0.027 | 0.7 | 초고성고강도 도금강판 |
구분 | 압연조건 | 소둔온도(℃) | 재질특성 | r값 | 성형성 상태 | 특 징 | 비고 | |||||
강종 | 조건 | FT | CT | YS | TS | El(%) | ||||||
비교강 1 | 비교예 1 | 910 | 721 | 840 | 17.8 | 28.9 | 47 | 2.03 | 크랙 | △ | 비교예(r값하한) | IF강 |
비교강 2 | 비교예 2 | 920 | 630 | 840 | 24.2 | 35.6 | 39 | 1.75 | 크랙 | × | 비교예(r값하한) | P첨가 IF강 |
발명강 1 | 발명예 1 | 920 | 705 | 855 | 23.3 | 35.2 | 41 | 2.23 | 성형 | O | 발명예 | 발명강 |
발명예 2 | 915 | 704 | 843 | 22.6 | 35.5 | 40 | 2.19 | 성형 | O | 발명예 | ||
발명강 2 | 비교예 3 | 918 | 703 | 800 | 24.3 | 35.8 | 37.5 | 1.82 | 크랙 | △ | 비교예(저온소둔)(r값하한) | 발명강 |
발명예 3 | 920 | 710 | 850 | 22.8 | 35.3 | 40 | 2.25 | 성형 | O | 발명예 | ||
발명강 3 | 발명예 4 | 917 | 705 | 840 | 23.5 | 35.6 | 39 | 2.13 | 성형 | O | 발명예 | 발명강 |
비교예 4 | 922 | 630 | 850 | 23.4 | 35.2 | 38 | 1.75 | 크랙 | × | 비료예(저온소둔)(r값하한) |
Claims (1)
- 합금화 용융아연도금강판의 제조방법에 있어서,강의 성분조성단계와, 마무리 열간압연단계와, 권취단계 및, 연속 소둔로에서 재결정 소둔하는 소둔단계를 포함하며,상기 강의 성분조성단계에서는 0.002wt%이하의 C, 0.5~1.2wt%의 Mn, 0.04~0.05wt%의 P, 0.003wt%의 N, 0.006wt%이하의 S, 0.04wt%이하의 산가용 Al, Ti의 성분비는 {(48/14×N의 wt%)+(48/12×C의 wt%)}≤Ti≤{(48/14×N의 wt%)+(48/32×S의 wt%)+(48/12×C의 wt%)}이고, Cr의 성분비는 8≤{Cr의 wt%/P의 wt%}≤16이며, 잔부의 Fe 및 기타 불순물로 구성되는 강을 조성하며,상기 마무리 열간압연단계에서는 강을 910℃이상에서 마무리 열간압연을 하고,상기 권취단계에서는 700℃이상에서 고온 권취를 하며,상기 소둔단계에서는 840~860℃의 온도범위에서 재결정소둔을 행하는 것을 특징으로 하는 초고성형성 고강도 용융아연도금강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980053896A KR100359241B1 (ko) | 1998-12-09 | 1998-12-09 | 초고가공용 고강도 합금화 용융아연도금강판의 제조방법 |
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KR1019980053896A KR100359241B1 (ko) | 1998-12-09 | 1998-12-09 | 초고가공용 고강도 합금화 용융아연도금강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20000038787A KR20000038787A (ko) | 2000-07-05 |
KR100359241B1 true KR100359241B1 (ko) | 2002-12-18 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0466653A (ja) * | 1990-07-04 | 1992-03-03 | Nisshin Steel Co Ltd | 表面性状に優れた高加工用溶融亜鉛めっき鋼板の製造方法 |
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 |
KR0136192B1 (ko) * | 1994-12-22 | 1998-07-01 | 김만제 | 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법 |
KR100259404B1 (ko) * | 1995-03-16 | 2000-06-15 | 에모또 간지 | 성형성이 우수한 박강판 및 그 제조방법 |
KR100263241B1 (ko) * | 1996-11-19 | 2000-08-01 | 이구택 | 가공용 용융아연 도금 열연강판의 제조방법 |
KR100267624B1 (ko) * | 1996-08-01 | 2000-10-16 | 고지마 마타오 | 합금화 용융 아연도금 강판 및 그 제조방법 |
KR100273846B1 (ko) * | 1996-12-24 | 2000-12-15 | 이구택 | 상온 내시효성과 성형성이 우수한 저탄소 냉연강판의 제조방법 |
-
1998
- 1998-12-09 KR KR1019980053896A patent/KR100359241B1/ko not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0466653A (ja) * | 1990-07-04 | 1992-03-03 | Nisshin Steel Co Ltd | 表面性状に優れた高加工用溶融亜鉛めっき鋼板の製造方法 |
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 |
KR0136192B1 (ko) * | 1994-12-22 | 1998-07-01 | 김만제 | 우수한 성형성과 소부경화성을 가진 냉연강판 제조방법 |
KR100259404B1 (ko) * | 1995-03-16 | 2000-06-15 | 에모또 간지 | 성형성이 우수한 박강판 및 그 제조방법 |
KR100267624B1 (ko) * | 1996-08-01 | 2000-10-16 | 고지마 마타오 | 합금화 용융 아연도금 강판 및 그 제조방법 |
KR100263241B1 (ko) * | 1996-11-19 | 2000-08-01 | 이구택 | 가공용 용융아연 도금 열연강판의 제조방법 |
KR100273846B1 (ko) * | 1996-12-24 | 2000-12-15 | 이구택 | 상온 내시효성과 성형성이 우수한 저탄소 냉연강판의 제조방법 |
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KR20000038787A (ko) | 2000-07-05 |
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