KR20020053633A - 합금화 용융아연 도금강판의 냉각방법 및 냉각장치 - Google Patents
합금화 용융아연 도금강판의 냉각방법 및 냉각장치 Download PDFInfo
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- KR20020053633A KR20020053633A KR1020000083342A KR20000083342A KR20020053633A KR 20020053633 A KR20020053633 A KR 20020053633A KR 1020000083342 A KR1020000083342 A KR 1020000083342A KR 20000083342 A KR20000083342 A KR 20000083342A KR 20020053633 A KR20020053633 A KR 20020053633A
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- Prior art keywords
- cooling
- steel sheet
- air
- strip
- atomization
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 146
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 16
- 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
- 238000000889 atomisation Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007747 plating Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000005275 alloying Methods 0.000 claims description 32
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 24
- 239000008397 galvanized steel Substances 0.000 claims description 24
- 239000010960 cold rolled steel Substances 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000005244 galvannealing Methods 0.000 abstract 3
- 239000003595 mist Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 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
- 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
- 150000002500 ions Chemical class 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Coating With Molten Metal (AREA)
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 | 에어냉각 | 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)
- 냉연소지강판을 도금조에 통과시켜 도금하고, 에어나이프에 의해 도금량이 제어된 강판을 470∼560℃의 범위로 가열하여 합금화처리하고, 합금화 열처리된 강판을 냉각시키는 합금화 용융아연 도금강판의 냉각방법에 있어서,상기 합금화 열처리된 강판은 정전 무화냉각방식에 의해 1차 냉각된 후 공냉방식에 의해 2차로 냉각되는 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각방법.
- 제1항에 있어서,상기 합금화 열처리된 강판은 상부롤에 도달하기 직전의 최종 냉각온도를 350℃ 이하로 유지되는 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각방법
- 제1항에 있어서,상기 정전 무화냉각방식에 의해 상기 합금화 열처리된 강판의 냉각속도는 25∼250℃/초의 범위로 조절되는 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각방법.
- 제3항에 있어서,상기 정전 무화냉각방식에 의해 냉각된 상기 합금화 열처리된 강판의 온도는200∼350℃의 범위로 유지되는 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각방법.
- 합금화 용융아연 도금강판 제조설비를 구성하는 합금화 열처리로와 상부롤 사이에 위치되어 상기 합금화 열처리로에서 합금화 열처리된 후 상기 상부롤로 진행하는 도금강판을 냉각시키기 위한 냉각장치에 있어서,공기를 가압하여 이송하는 송풍기 및 냉각수를 공급하는 수공급수단과, 상기 송풍기 및 수공급수단으로부터 무화노즐을 통해 분무되는 에어 및 냉각수에 (-) 전하를 부여하는 그리드 전극을 포함하는 무화 냉각대로 이루어진 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각장치.
- 제5항에 있어서,상기 무화 냉각대는 하부에는 낙수되는 물방울을 집수하는 드립펜이 내설되어 있는 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각장치.
- 제5항에 있어서,상기 무화냉각대와 상기 상부롤 사이에는 공기냉각대가 제공된 것을 특징으로 하는 합금화 용융아연 도금강판의 냉각장치.
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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 true KR20020053633A (ko) | 2002-07-05 |
KR100504370B1 KR100504370B1 (ko) | 2005-07-28 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110107061A (ko) * | 2010-03-24 | 2011-09-30 | 주식회사 포스코 | 도금강판 진행롤의 이물 부착 방지장치 |
KR101126014B1 (ko) * | 2009-08-07 | 2012-03-19 | 주식회사 엠.이.시 | 합금화 용융아연도금강판의 제조방법 |
WO2020040360A1 (ko) * | 2018-08-24 | 2020-02-27 | 김상호 | Mg이 포함된 용융아연도금강판의 제조방법 및 제조장치 |
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 |
CN114061262A (zh) * | 2021-11-23 | 2022-02-18 | 钢铁研究总院 | 一种用于槽钢的控冷方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101353547B1 (ko) * | 2011-06-15 | 2014-01-22 | 주식회사 포스코 | 용융 아연 도금 설비의 냉각장치 |
WO2018021898A1 (ko) * | 2016-07-29 | 2018-02-01 | 주식회사 포스코 | 도금강판 제1냉각장치, 도금설비 및 도금강판 냉각방법 |
KR101778457B1 (ko) * | 2016-07-29 | 2017-09-14 | 주식회사 포스코 | 도금강판 후행냉각장치 및 이를 포함하는 도금설비 |
KR102004971B1 (ko) * | 2018-12-11 | 2019-10-01 | 김상호 | 용융도금강판의 제조방법 및 장치 |
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 |
Family Cites Families (4)
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JPS54160524A (en) * | 1978-06-09 | 1979-12-19 | Nippon Steel Corp | Fining device for spangle in hot galvanization |
US4500561A (en) * | 1983-07-25 | 1985-02-19 | Inland Steel Company | Minimization of spangling on hot dip galvanized steel strip |
KR100380134B1 (ko) * | 1998-12-30 | 2003-07-10 | 주식회사 포스코 | 표면외관이우수한미니스팡글용융도금강판제조방법 |
KR100415677B1 (ko) * | 1999-12-28 | 2004-01-31 | 주식회사 포스코 | 스팽글이 없는 용융도금강판 제조방법 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101126014B1 (ko) * | 2009-08-07 | 2012-03-19 | 주식회사 엠.이.시 | 합금화 용융아연도금강판의 제조방법 |
KR20110107061A (ko) * | 2010-03-24 | 2011-09-30 | 주식회사 포스코 | 도금강판 진행롤의 이물 부착 방지장치 |
WO2020040360A1 (ko) * | 2018-08-24 | 2020-02-27 | 김상호 | Mg이 포함된 용융아연도금강판의 제조방법 및 제조장치 |
US11761072B2 (en) | 2018-08-24 | 2023-09-19 | M.E.C Co., Ltd | Mg-comprising hot-dip galvanized steel sheet manufacturing method and manufacturing apparatus |
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 |
CN113195775B (zh) * | 2018-12-11 | 2023-08-25 | 株式会社 M.E.C | 用于制造熔融镀锌钢板的方法 |
CN114061262A (zh) * | 2021-11-23 | 2022-02-18 | 钢铁研究总院 | 一种用于槽钢的控冷方法 |
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