KR100504370B1 - 합금화 용융아연 도금강판의 제조방법 및 제조장치 - Google Patents
합금화 용융아연 도금강판의 제조방법 및 제조장치 Download PDFInfo
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- KR100504370B1 KR100504370B1 KR10-2000-0083342A KR20000083342A KR100504370B1 KR 100504370 B1 KR100504370 B1 KR 100504370B1 KR 20000083342 A KR20000083342 A KR 20000083342A KR 100504370 B1 KR100504370 B1 KR 100504370B1
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- South Korea
- Prior art keywords
- steel sheet
- cooling
- air
- electrostatic atomization
- rolled steel
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 title abstract description 57
- 239000010959 steel Substances 0.000 title abstract description 57
- 239000011701 zinc Substances 0.000 title description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 9
- 229910052725 zinc Inorganic materials 0.000 title description 9
- 238000001816 cooling Methods 0.000 claims abstract description 136
- 238000000889 atomisation Methods 0.000 claims abstract description 63
- 239000010960 cold rolled steel Substances 0.000 claims abstract description 38
- 238000005275 alloying Methods 0.000 claims abstract description 36
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 238000007747 plating Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 23
- 239000008397 galvanized steel Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000011084 recovery Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 239000003595 mist Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 239000007921 spray Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
-
- 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
- B05D3/007—After-treatment
-
- 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
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
-
- 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
구 분 | 처리조건 | 합금화도 | 내파우더링성 | 냉각효율 | 아연픽엄성 | 표면품질 | ||
냉각속도(℃/초) | 냉각방식 | |||||||
종래예 | 1 | 15~20 | 포그냉각 | 13.6~15.1 | 4 | 5 | 4 | 2 |
2 | 5~10 | 공기냉각 | 15.2~18.0 | 5 | 5 | 5 | 2 | |
3 | 10~15 | 포그냉각 | 13.2~14.9 | 4 | 4 | 4 | 2 | |
비교예 | 1 | 260~350 | 무화미스트냉각 | 9.4~10.7 | 1 | 1 | 1 | 4 |
2 | 10~20 | 무화미스트냉각 | 12.5~14.3 | 4 | 2 | 4 | 2 | |
발명예 | 1 | 25~106 | 무화미스트냉각 | 10.2~11.6 | 2 | 2 | 2 | 1 |
2 | 106~170 | 무화미스트냉각 | 9.8~11.1 | 1 | 1 | 2 | 1 | |
3 | 170~250 | 무화미스트냉각 | 8.8~10.0 | 1 | 1 | 1 | 2 |
Claims (7)
- 냉연강판을 도금조에 통과시켜 도금하는 단계와,에어나이프에 의해 상기 냉연강판의 도금량을 제어하는 단계와,도금량이 제어된 상기 냉연강판을 열처리로에서 가열하여 합금화 열처리하는 단계와,합금화 열처리된 상기 냉연강판을 정전 무화냉각장치에 의해 1차 냉각시키는 단계와,1차 냉각된 상기 냉연강판을 공냉방식에 의해 2차 냉각시키는 단계와,상기 정전 무화냉각장치에서 낙하되는 물방울을 회수하여 냉각수 공급수단에 의해 상기 정전 무화냉각장치로 재공급하는 단계로 진행되는 것을 특징으로 하는 합금화 용융아연 도금강판의 제조방법.
- 삭제
- 삭제
- 삭제
- 냉연강판을 도금하기 위한 도금조와, 상기 도금조의 상부에 위치하여 상기 냉연강판을 가열하는 합금화 열처리로와, 상기 합금화 열처리로의 상부에 위치하여 상기 합금화 열처리로에서 열처리된 냉연강판을 냉각하는 정전 무화냉각장치와, 상기 정전 무화냉각장치의 상부에 설치되며 상기 냉연강판 표면을 건조시키기 위해 공기를 공급하는 공기냉각대를 포함하여 구성되는 합금화 용융아연 도금강판의 제조장치에 있어서,상기 정전 무화냉각장치에 공기를 이송하는 송풍기와,상기 정전 무화냉각장치에 냉각수를 공급하는 냉각수 공급수단과,상기 정전 무화냉각장치에서 낙하되는 물방울을 상기 냉각수 공급수단으로 회수하는 회수장치를 포함하여 구성되는 것을 특징으로 하는 합금화 용융아연 도금강판의 제조장치.
- 제5항에 있어서,상기 냉각수 공급수단은 물이 담기는 워터탱크와, 상기 워터탱크에서 상기 정전 무화냉각장치로 공급되는 물을 냉각하는 열교환기와, 상기 워터탱크 내의 물을 상기 정전 무화냉각장치의 분사노즐로 공급하는 가압펌프로 구성되는 것을 특징으로 하는 합금화 용융아연 도금강판의 제조장치.
- 제5항에 있어서,상기 회수장치는 상기 정전 무화냉각장치의 하부에 설치되어 낙하되는 물방울을 집수하는 드립펜과, 상기 드립펜에 연결되어 공기와 냉각수를 분리해주는 분리기와, 상기 분리기와 상기 냉각수 공급수단을 연결하는 지관으로 구성되는 것을 특징으로 하는 합금화 용융아연 도금강판의 제조장치.
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KR10-2000-0083342A KR100504370B1 (ko) | 2000-12-27 | 2000-12-27 | 합금화 용융아연 도금강판의 제조방법 및 제조장치 |
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KR10-2000-0083342A KR100504370B1 (ko) | 2000-12-27 | 2000-12-27 | 합금화 용융아연 도금강판의 제조방법 및 제조장치 |
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KR20020053633A KR20020053633A (ko) | 2002-07-05 |
KR100504370B1 true KR100504370B1 (ko) | 2005-07-28 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101353547B1 (ko) * | 2011-06-15 | 2014-01-22 | 주식회사 포스코 | 용융 아연 도금 설비의 냉각장치 |
KR101778457B1 (ko) * | 2016-07-29 | 2017-09-14 | 주식회사 포스코 | 도금강판 후행냉각장치 및 이를 포함하는 도금설비 |
WO2018021898A1 (ko) * | 2016-07-29 | 2018-02-01 | 주식회사 포스코 | 도금강판 제1냉각장치, 도금설비 및 도금강판 냉각방법 |
KR102004965B1 (ko) * | 2019-07-04 | 2019-07-30 | 김상호 | 용융아연도금강판의 제조방법 |
KR102004971B1 (ko) * | 2018-12-11 | 2019-10-01 | 김상호 | 용융도금강판의 제조방법 및 장치 |
WO2020122352A1 (ko) * | 2018-12-11 | 2020-06-18 | 김상호 | 용융아연도금강판의 제조방법 |
KR20240008603A (ko) | 2022-07-12 | 2024-01-19 | 주식회사 엠.이.시 | 연속 용융아연 도금강판의 냉각 방법 |
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KR101126014B1 (ko) * | 2009-08-07 | 2012-03-19 | 주식회사 엠.이.시 | 합금화 용융아연도금강판의 제조방법 |
KR101647152B1 (ko) * | 2010-03-24 | 2016-08-10 | 주식회사 포스코 | 도금강판 진행롤의 이물 부착 방지장치 |
KR101934524B1 (ko) * | 2018-08-24 | 2019-01-02 | 김상호 | Mg이 포함된 용융아연도금강판의 제조방법 및 제조장치 |
CN114061262B (zh) * | 2021-11-23 | 2023-03-24 | 钢铁研究总院 | 一种用于槽钢的控冷方法 |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101353547B1 (ko) * | 2011-06-15 | 2014-01-22 | 주식회사 포스코 | 용융 아연 도금 설비의 냉각장치 |
KR101778457B1 (ko) * | 2016-07-29 | 2017-09-14 | 주식회사 포스코 | 도금강판 후행냉각장치 및 이를 포함하는 도금설비 |
WO2018021898A1 (ko) * | 2016-07-29 | 2018-02-01 | 주식회사 포스코 | 도금강판 제1냉각장치, 도금설비 및 도금강판 냉각방법 |
EP3492619A4 (en) * | 2016-07-29 | 2019-06-05 | Posco | FIRST COOLING DEVICE FOR PLATED STEEL SHEET, GALVANIZATION INSTALLATION, AND METHOD FOR COOLING PLATED STEEL SHEET |
KR102004971B1 (ko) * | 2018-12-11 | 2019-10-01 | 김상호 | 용융도금강판의 제조방법 및 장치 |
WO2020122351A1 (ko) * | 2018-12-11 | 2020-06-18 | 김상호 | 용융도금강판의 제조방법 및 장치 |
WO2020122352A1 (ko) * | 2018-12-11 | 2020-06-18 | 김상호 | 용융아연도금강판의 제조방법 |
CN113195775A (zh) * | 2018-12-11 | 2021-07-30 | 株式会社 M.E.C | 用于制造熔融镀锌钢板的方法 |
US20220056570A1 (en) * | 2018-12-11 | 2022-02-24 | M.E.C Co., Ltd | Method for manufacturing molten galvanized steel sheet |
US11535923B2 (en) | 2018-12-11 | 2022-12-27 | M.E.C Co., Ltd | Method for manufacturing molten galvanized steel sheet |
KR102004965B1 (ko) * | 2019-07-04 | 2019-07-30 | 김상호 | 용융아연도금강판의 제조방법 |
KR20240008603A (ko) | 2022-07-12 | 2024-01-19 | 주식회사 엠.이.시 | 연속 용융아연 도금강판의 냉각 방법 |
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