KR100988491B1 - 용융 알루미늄 도금 스테인레스 강판의 제조방법 - Google Patents
용융 알루미늄 도금 스테인레스 강판의 제조방법 Download PDFInfo
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- KR100988491B1 KR100988491B1 KR1020080060997A KR20080060997A KR100988491B1 KR 100988491 B1 KR100988491 B1 KR 100988491B1 KR 1020080060997 A KR1020080060997 A KR 1020080060997A KR 20080060997 A KR20080060997 A KR 20080060997A KR 100988491 B1 KR100988491 B1 KR 100988491B1
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- Prior art keywords
- steel sheet
- stainless steel
- molten aluminum
- temperature
- plating
- Prior art date
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 64
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000010935 stainless steel Substances 0.000 title claims abstract description 43
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000007747 plating Methods 0.000 claims abstract description 71
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000000137 annealing Methods 0.000 claims abstract description 22
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 19
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 230000004913 activation Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 5
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract description 13
- 239000011651 chromium Substances 0.000 abstract description 13
- 229910000423 chromium oxide Inorganic materials 0.000 abstract description 13
- 150000002431 hydrogen Chemical class 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 230000008569 process Effects 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C23C2/04—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
- C23C2/12—Aluminium or alloys based thereon
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
-
- 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
- C23C2/02—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
-
- 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
시편 No. | 전처리 조건 | ||
전처리 종류 | 전처리 용액(가성소다 용액)농도(%) | 전처리온도(℃) | |
1 | Brush세정 | 3 | 65 |
2 | 전해청정 | 3 | 65 |
3 | Brush세정 | 3 | 65 |
4 | 전해청정 | 3 | 65 |
5 | Brush세정 | 3 | 75 |
6 | 전해청정 | 3 | 65 |
7 | Brush세정 | 3 | 65 |
8 | 전해청정 | 3 | 65 |
9 | Brush세정 | 3 | 65 |
10 | 전해청정 | 3 | 65 |
시편 No. |
소둔조건(간접가열식) | |||||||
예열 조건 | 가열 및 유지조건 | 냉각조건 | ||||||
온도 (℃) |
산소농도 (%) |
수소농도 (%) |
온도 (℃) |
수소농도 (%) |
이슬점 온도(℃) |
냉각종료 온도(℃) |
수소농도 (%) |
|
1 | 400 | 0.01 | 0 | 800 | 35 | -40 | 650 | 30 |
2 | 500 | 0.1 | 3 | 900 | 35 | -40 | 650 | 40 |
3 | 500 | 0.5 | 0 | 800 | 35 | -40 | 650 | 30 |
4 | 600 | 1 | 0 | 900 | 35 | -40 | 650 | 40 |
5 | 600 | 3 | 0 | 900 | 40 | -30 | 650 | 30 |
6 | 600 | 5 | 3 | 950 | 25 | -30 | 700 | 40 |
7 | 600 | 10 | 0 | 800 | 35 | -35 | 500 | 35 |
8 | 600 | 10 | 3 | 900 | 40 | -40 | 650 | 40 |
9 | 600 | 10 | 0 | 900 | 35 | -40 | 650 | 40 |
10 | 600 | 1 | 0 | 900 | 40 | -40 | 650 | 40 |
시편 No. |
도금조건 | 냉각조건 | ||
도금욕온도(℃) | 도금욕 조성 | 냉각방식 | 냉각종료온도(℃) | |
1 | 660 | 91%Al, 9% Si | 공랭식 | 350 |
2 | 660 | 91%Al, 9% Si | Al분말 분사+공랭식 | 345 |
3 | 660 | 91%Al, 9% Si | 공랭식 | 350 |
4 | 660 | 91%Al, 9% Si | Al분말 분사+공랭식 | 345 |
5 | 660 | 91%Al, 9% Si | Al분말 분사+공랭식 | 345 |
6 | 660 | 100%Al | 공랭식 | 350 |
7 | 660 | 91%Al, 9% Si | 공랭식 | 350 |
8 | 660 | 91%Al, 9% Si | Al분말 분사+공랭식 | 345 |
9 | 660 | 100%Al | 공랭식 | 355 |
10 | 660 | 100%Al | Al분말 분사+공랭식 | 349 |
시편 No. | 밀착성 | 표면특성 | 가공성 |
1 | Δ | Δ | Δ |
2 | Δ | Δ | ○ |
3 | ○ | Δ | Δ |
4 | ◎ | ◎ | ◎ |
5 | ◎ | ○ | ◎ |
6 | Δ | Δ | ○ |
7 | ○ | Δ | ○ |
8 | Δ | Δ | ◎ |
9 | Δ | Δ | ○ |
10 | ◎ | ◎ | ○ |
Claims (8)
- 스테인레스 강판에 용융알루미늄 도금을 행하여 용융 알루미늄 도금 스테인레스 강판을 제조하는 방법으로서, 상기 스테인레스 강판을 전처리하는 단계;간접 가열식에 의하여, 상기와 같이 전처리한 스테인레스 강판에 활성화된 Fe, Cr 복합산화층이 생성되도록 예열온도: 530℃이상 및 산소 농도: 20ppm 이상의 조건으로 예열한 후, 상기 Fe, Cr 복합 산화물이 환원되도록 가열온도: 900℃ 이하, 수소농도: 30%이상, 및 이슬점 온도: 30~-45℃로 가열하고, 그 온도에서 유지한 다음, 20-40%의 수소 농도를 유지한 상태에서 630-730℃ 부근까지 냉각하여 소둔하는 단계;상기와 같이 소둔된 강판을 욕 온도가 600∼700℃인 용융 알루미늄 도금욕에서 도금하는 단계; 및상기 도금된 용융 알루미늄 도금강판을 20∼40℃/sec의 냉각속도로 350℃이하의 온도구간까지 냉각하는 단계를 포함하고,상기 도금된 용융 알루미늄 도금강판의 냉각은 Al분말을 분사한 후, 찬 공기를 분사시켜 냉각하는 방식으로 이루어지는 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
- 제1항에 있어서, 상기 알루미늄 도금욕에는 실리콘이 추가로 첨가되어 도금욕의 조성이 89∼99%의 알루미늄과 1∼11%의 실리콘으로 이루어지는 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
- 제2항에 있어서, 상기 도금욕의 조성이 89∼92%의 알루미늄과 8∼11%의 실리콘으로 이루어지는 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
- 삭제
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 상기 Al분말의 분사 시 사용되는 Al분말의 크기는 1 ~ 15㎛이고, 그리고 Al분말의 분사량은 분당 70 ~ 120mg/m2 인 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 강판의 전처리는 표면활성화 단계, 전해 청정단계 및 세척단계를 포함하는 전해 청정방법에 의하여 이루어지고; 그리고 상기 표면활성화 단계에서 사용되는 용액은 강판 표면 활성화 용액으로서 2∼5%의 농도를 갖는 60∼80℃의 가성소다 용액인 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
- 삭제
- 제5항에 있어서, 강판의 전처리는 표면활성화 단계, 전해 청정단계 및 세척단계를 포함하는 전해 청정방법에 의하여 이루어지고; 그리고상기 표면활성화 단계에서 사용되는 용액은 강판 표면 활성화 용액으로서 2∼5%의 농도를 갖는 60∼80℃의 가성소다 용액인 것을 특징으로 하는 용융 알루미늄 도금 스테인레스 강판의 제조방법
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WO2020111883A1 (ko) * | 2018-11-30 | 2020-06-04 | 주식회사 포스코 | 수소지연파괴특성 및 점용접성이 우수한 열간 프레스용 철-알루미늄계 도금 강판 및 그 제조방법 |
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CN102851629B (zh) * | 2011-06-28 | 2015-09-02 | 鞍钢股份有限公司 | 一种热压成型用镀铝硅钢板及其制造方法 |
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