KR100349086B1 - 가공성, 도금밀착성 및 표면품질이 우수한 용융아연도금열연강판의 제조방법 - Google Patents
가공성, 도금밀착성 및 표면품질이 우수한 용융아연도금열연강판의 제조방법 Download PDFInfo
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- KR100349086B1 KR100349086B1 KR1020000052357A KR20000052357A KR100349086B1 KR 100349086 B1 KR100349086 B1 KR 100349086B1 KR 1020000052357 A KR1020000052357 A KR 1020000052357A KR 20000052357 A KR20000052357 A KR 20000052357A KR 100349086 B1 KR100349086 B1 KR 100349086B1
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- South Korea
- Prior art keywords
- hot
- steel sheet
- less
- temperature
- rolled steel
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 title claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000007747 plating Methods 0.000 claims abstract description 24
- 238000005246 galvanizing Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 238000005554 pickling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 5
- 229910052745 lead Inorganic materials 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 48
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 27
- 238000005096 rolling process Methods 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 230000009466 transformation Effects 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 238000004804 winding Methods 0.000 description 10
- 239000011572 manganese Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000006104 solid solution Substances 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 238000005098 hot rolling Methods 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 4
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000008397 galvanized steel Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000003483 aging Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003568 thioethers Chemical class 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
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- 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
- C23C2/02—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
-
- 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
Abstract
Description
구분시편 | 화 학 성 분 (wt%) | Ar3(℃) | ||||||||
C | Si | Mn | P | S | Al | Ti | B(ppm) | N(ppm) | ||
종래재1 | 0.040 | 0.01 | 0.25 | 0.012 | 0.009 | 0.036 | - | - | 25 | 862 |
종래재2 | 0.018 | 0.01 | 0.18 | 0.013 | 0.010 | 0.035 | - | 22 | 883 | |
종래재3 | 0.004 | 0.01 | 0.15 | 0.011 | 0.009 | 0.032 | 0.050 | 20 | 896 | |
종래재4 | 0.008 | 0.01 | 0.17 | 0.010 | 0.009 | 0.034 | 0.052 | 21 | 891 | |
비교재1 | 0.029 | 0.01 | 0.19 | 0.012 | 0.007 | 0.035 | - | 18 | 19 | 846 |
비교재2 | 0.031 | 0.01 | 0.19 | 0.015 | 0.010 | 0.030 | - | 12 | 18 | 854 |
발명재 | 0.020 | 0.01 | 0.19 | 0.008 | 0.006 | 0.034 | - | 15 | 20 | 845 |
구분시편 | 권취온도(℃) | 열 연 강 판 | 용융아연도금 열연강판(HGI) | ||||||
항복강도(㎏/㎟) | 인장강도(㎏/㎟) | 연신율 (%) | 항복강도(㎏/㎟) | 인장강도(㎏/㎟) | 연신율 (%) | 항복비 (%) | 경도 (Hrb) | ||
종래재1 | 650 | 27.3 | 36.8 | 39 | 29.4 | 37.5 | 37 | 78.4 | 65 |
종래재2 | 700 | 25.2 | 33.8 | 44.5 | 26.1 | 33.8 | 39 | 71.3 | 60 |
종래재3 | 700 | 21.9 | 30.4 | 45.5 | 30 | 37 | 37 | 81.0 | 61 |
종래재4 | 700 | 23.2 | 32.0 | 44.5 | 27 | 37 | 38 | 73.0 | 59 |
비교재1 | 640670 | 2120 | 3232 | 4647 | 23.222.5 | 35.635 | 40.743 | 6564 | 52.451.2 |
비교재2 | 640670700 | 2421.620 | 3432.131.9 | 424446 | 26.623.622.0 | 37.235.534.6 | 384042 | 71.566.563.6 | 58.354.651.4 |
발명재 | 680720 | 2019.5 | 3231 | 4849 | 21.020.0 | 3434 | 4546 | 61.858.8 | 49.047.0 |
Claims (2)
- 0.015∼0.040 wt%의 C, 0.15∼0.25 wt%의 Mn, 0.012 wt% 이하의 P, 0.010 wt% 이하의 S, 0.02∼0.05 wt%의 Al, 0.004 wt% 이하의 N, 10∼25 ppm의 B 및 잔부가 Fe와 불가피한 불순물로 구성된 성분계의 슬라브를 1120~1180℃로 추출하여 열간압연한 후 680∼720℃에서 권취하여 열연강판을 제조하는 단계;상기 열연강판을 산세 후 440∼500℃에서 가열하는 단계;상기 가열한 열연강판을 용융아연 도금욕에 침적하여 도금하는 단계;를 포함하여 구성된 것을 특징으로 하는 용융아연도금 열연강판의 제조방법.
- 제 1항에 있어서,상기 도금욕은 0.14∼0.20%의 Al, 30 ppm이하의 Pb, 30 ppm이하의 Sb, 잔부가 Zn 및 기타 불가피한 불순물로 구성된 것을 특징으로 하는 용융아연도금 열연강판의 제조방법.
Priority Applications (1)
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KR1020000052357A KR100349086B1 (ko) | 2000-09-05 | 2000-09-05 | 가공성, 도금밀착성 및 표면품질이 우수한 용융아연도금열연강판의 제조방법 |
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KR1020000052357A KR100349086B1 (ko) | 2000-09-05 | 2000-09-05 | 가공성, 도금밀착성 및 표면품질이 우수한 용융아연도금열연강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020019205A KR20020019205A (ko) | 2002-03-12 |
KR100349086B1 true KR100349086B1 (ko) | 2002-08-14 |
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KR1020000052357A KR100349086B1 (ko) | 2000-09-05 | 2000-09-05 | 가공성, 도금밀착성 및 표면품질이 우수한 용융아연도금열연강판의 제조방법 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20040017756A (ko) * | 2002-08-23 | 2004-02-27 | 주식회사 포스코 | 표면이 우수한 고강도 용융아연도금강판의 제조방법 |
KR101647221B1 (ko) | 2014-12-23 | 2016-08-10 | 주식회사 포스코 | 우수한 표면품질과 밀착성을 갖는 열연 용융아연도금강판의 제조방법 |
CN105714230A (zh) * | 2016-04-13 | 2016-06-29 | 苏州大学 | 一种钢材热浸镀锌镍锆合金镀层的方法 |
KR102463731B1 (ko) * | 2020-11-25 | 2022-11-07 | 현대제철 주식회사 | 용융아연도금용 도금욕 및 이를 이용하여 형성한 용융아연도금 강판, 및 그 제조방법 |
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