KR100511513B1 - 지에이 강판의 철함량 편차 균일화 방법 - Google Patents
지에이 강판의 철함량 편차 균일화 방법 Download PDFInfo
- Publication number
- KR100511513B1 KR100511513B1 KR10-2003-0017837A KR20030017837A KR100511513B1 KR 100511513 B1 KR100511513 B1 KR 100511513B1 KR 20030017837 A KR20030017837 A KR 20030017837A KR 100511513 B1 KR100511513 B1 KR 100511513B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel sheet
- iron content
- steel plate
- alloying
- edge
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 117
- 239000010959 steel Substances 0.000 title claims abstract description 117
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 16
- 238000005275 alloying Methods 0.000 claims abstract description 40
- 238000007747 plating Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 5
- 239000008397 galvanized steel Substances 0.000 claims abstract description 5
- 238000005246 galvanizing Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 229910000640 Fe alloy Inorganic materials 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 7
- 239000011701 zinc Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000010792 warming Methods 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
- 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
-
- 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
-
- 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
- C23C2/50—Controlling or regulating the coating processes
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
버너 용량 | 크기 | 타입 | 화염의 크기 | 사용연료 |
2.8 X 105 kcal/Hr | 500L X 60W X 300H | 직화식 | 60ΦX 300L | COG(COKE OVEN GAS) |
Claims (4)
- 강판을 도금조에서 용융아연도금하는 단계;에어나이프가 상기 아연도금된 강판의 도금량을 조절하는 단계;상기 도금량이 조절된 강판을 합금화로에서 합금화 열처리하는 단계;상기 열처리된 강판을 냉각하는 단계;색도계, 광택도계 및 포토센서가 상기 강판의 폭방향으로 이동하면서 백색도, 광택도 및 폭방향 거리 데이터를 각각 측정하여 그 결과를 중앙제어컴퓨터로 전송하는 단계; 및상기 측정된 백색도, 광택도 및 폭방향 거리 데이터를 기초로 상기 중앙제어컴퓨터가 강판 폭방향 철함량을 계산하고, 강판 에지부의 철함량이 강판 중심부의 철함량보다 낮은 것으로 판단되면, 상기 에어나이프와 합금화로 사이에 있는 에지 버너를 가동하여 철함량의 부족한 강판 에지부 부분을 가열시키는 단계를 포함하는 것을 특징으로 하는, 지에이 강판의 철함량 편차 균일화 방법.
- 제 1 항에 있어서,상기 합금화로의 중앙부의 버너는 수평방향으로 배열되어 있으며, 양쪽 에지부의 버너는 강판의 진입과 함께 유입되는 외기의 차단을 위해 화염의 토출 방향을 30∼60도 하향 유지하도록 배치된 것을 특징으로 하는, 지에이 강판의 철함량 편차 균일화 방법.
- 제 1 항에 있어서,상기 중앙제어컴퓨터는 공급압력계 및 오토 밸브를 통해 제공되는 연료 및 에어의 량을 조절하여 상기 에지버너의 열량 및 화염 분사폭을 제어하는 것을 특징으로 하는, 지에이 강판의 철함량 편차 균일화 방법.
- 제 1 항에 있어서,상기 에지버너에 의해 온도 보상된 강판이 상기 열처리로에 진입하기 전까지 강판의 폭방향 온도가 균일하게 유지될 수 있도록, 내부가 내화벽돌로 축조된 보열대차를 상기 열처리로와 에지버너 사이에 설치한 것을 특징으로 하는, 지에이 강판의 철함량 편차 균일화 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0017837A KR100511513B1 (ko) | 2003-03-21 | 2003-03-21 | 지에이 강판의 철함량 편차 균일화 방법 |
Applications Claiming Priority (1)
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KR10-2003-0017837A KR100511513B1 (ko) | 2003-03-21 | 2003-03-21 | 지에이 강판의 철함량 편차 균일화 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040083251A KR20040083251A (ko) | 2004-10-01 |
KR100511513B1 true KR100511513B1 (ko) | 2005-09-02 |
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KR10-2003-0017837A KR100511513B1 (ko) | 2003-03-21 | 2003-03-21 | 지에이 강판의 철함량 편차 균일화 방법 |
Country Status (1)
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KR (1) | KR100511513B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101008169B1 (ko) * | 2008-09-03 | 2011-01-13 | 주식회사 포스코 | 모니터링을 통한 아연 도금강판 제조방법 |
KR102255908B1 (ko) * | 2019-12-06 | 2021-05-25 | 주식회사 포스코 | Ga/gi 양면강판 제조장치 및 제조방법 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101711856B1 (ko) * | 2015-12-24 | 2017-03-03 | 주식회사 포스코 | 도금 장치 및 도금 방법 |
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2003
- 2003-03-21 KR KR10-2003-0017837A patent/KR100511513B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101008169B1 (ko) * | 2008-09-03 | 2011-01-13 | 주식회사 포스코 | 모니터링을 통한 아연 도금강판 제조방법 |
KR102255908B1 (ko) * | 2019-12-06 | 2021-05-25 | 주식회사 포스코 | Ga/gi 양면강판 제조장치 및 제조방법 |
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Publication number | Publication date |
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KR20040083251A (ko) | 2004-10-01 |
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