KR20090044703A - 고속 합금화 용융 아연 도금강판의 제조방법 - Google Patents
고속 합금화 용융 아연 도금강판의 제조방법 Download PDFInfo
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- KR20090044703A KR20090044703A KR1020070110920A KR20070110920A KR20090044703A KR 20090044703 A KR20090044703 A KR 20090044703A KR 1020070110920 A KR1020070110920 A KR 1020070110920A KR 20070110920 A KR20070110920 A KR 20070110920A KR 20090044703 A KR20090044703 A KR 20090044703A
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- Prior art keywords
- alloying
- steel sheet
- induction heating
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 98
- 238000005275 alloying Methods 0.000 claims abstract description 85
- 230000006698 induction Effects 0.000 claims abstract description 52
- 238000007747 plating Methods 0.000 claims abstract description 27
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 11
- 239000008397 galvanized steel Substances 0.000 claims abstract description 11
- 238000005246 galvanizing Methods 0.000 claims abstract description 11
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000640 Fe alloy Inorganic materials 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 238000005244 galvannealing Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 16
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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- 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
- C23C2/261—After-treatment in a gas atmosphere, e.g. inert 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
- C23C2/003—Apparatus
-
- 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
Claims (3)
- 연속 합금화 용융아연도금설비의 합금화로-가열장치에 있어서,상기 장치는 고속 합금화 작업에 따른 과합금화 현상을 방지하기 위하여 용융아연도금라인에서 유도가열장치를 전ㆍ후 2단으로 배치하고, 이 전ㆍ후 유도가열장치 사이에 직접가열장치를 배치하여 유도가열로-직화가열로-유도가열로 배치구조로 하며, 상기 직화가열로는 상기 직화가열로 버너를 폭방향으로 3등분하여 3그룹으로 분할배치하고, 정상면(top surface)과 배면(back surface)의 연료공급배관을 구분관리하여 폭방향이나 정상면 또는 배면의 합금화차이가 발생할 경우 버너에 공급되는 LNG 및 공기량을 가감하여 일정비율로 공연비를 차등 조정함으로써 폭방향 및 전이면 합금화 정도를 제어할 수 있도록 한 합금화로-가열장치로 되는 것을 특징으로 하는 용융아연도금강판의 고속 합금화 처리 장치.
- 제 1항에 있어서, 상기 직화가열로에는 주제어밸브(21a, 21b, 22a, 22b)를 설치하여 상기 버너에 연결 설치된 이 주제어밸브(21a, 21b, 22a, 22b)를 통해서 정상면(top surface)과 배면(back surface)으로 공급되는 LNG 및 공기량을 조정하고, 또한 라인제어밸브(23a, 23b, 24a, 24b)를 설치하고, 이 밸브를 통해서는 작업측-중앙부-구동측으로 구분하여 공급되는 전력을 조정함으로써 상기 정상면, 배면의 합금화 또는 폭방향의 합금화를 각각 또는 동시에 제어할 수 있도록 한 것을 특징으로 하는 용융아연도금강판의 고속합금화 처리장치.
- 용융아연도금라인에서 상ㆍ하 2대의 유도가열로와 그 중간부에 직화가열로를 동시에 배치 조합한 가열장치 구성에 의하여 아연-철 합금용융도금강판을 고속으로 제조하기 위한 고속합금화 아연도금강판의 제조방법은도금욕중의 Al 농도를 0.12~0.14wt%로 유지하고,상기 유도가열로를 선정할 때 주파수를 50KHz 이상 100KHz 이하의 범위에서 선정하며, 상기 직화가열로에 공급되는 합금화처리 공급전력을 유도가열로 단독적용시보다 600kW 낮게 작업하고,상기 상ㆍ하부 유도가열로의 폭방향 공급전력을 차등제어하기 위하여 최종 판온도가 500~550℃를 유지하도록 작업하되 상ㆍ하부 유도가열로 중간의 개방(open)된 공간에 폭방향으로 설치된 간이버너로 공급되는 공기 및 연료의 밸브개도를 조정하여 합금화요건을 변화시켜 폭방향으로의 합금화 차이를 줄일 수 있도록 한 것을 특징으로 하는 직화가열로를 가지는 고속합금화 용융아연도금강판의 제조방법.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101421981B1 (ko) * | 2009-11-04 | 2014-08-13 | 에스엠에스 지마크 악티엔게젤샤프트 | 금속 스트립 코팅 장치 및 그 방법 |
CN110846601A (zh) * | 2018-08-20 | 2020-02-28 | 上海梅山钢铁股份有限公司 | 一种锌液处理装置 |
CN115537699A (zh) * | 2022-10-19 | 2022-12-30 | 山东钢铁集团日照有限公司 | 一种在宽幅镀锌机组下小宽厚比产品的稳定生产方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101253834B1 (ko) | 2010-10-25 | 2013-04-12 | 주식회사 포스코 | 저투자율 합금화 용융아연도금강판의 제조방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02153060A (ja) * | 1988-12-02 | 1990-06-12 | Mitsubishi Heavy Ind Ltd | 加熱炉の板温制御方法 |
JPH0525604A (ja) * | 1991-07-15 | 1993-02-02 | Nkk Corp | 溶融めつき設備における合金化制御装置 |
JP3114609B2 (ja) * | 1996-03-26 | 2000-12-04 | 日本鋼管株式会社 | 表面性状の優れた合金化溶融亜鉛めっき鋼板の製造方法 |
JP2006274409A (ja) | 2005-03-30 | 2006-10-12 | Jfe Steel Kk | 合金化溶融亜鉛めっき鋼板の製造装置 |
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- 2007-11-01 KR KR1020070110920A patent/KR100899550B1/ko active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101421981B1 (ko) * | 2009-11-04 | 2014-08-13 | 에스엠에스 지마크 악티엔게젤샤프트 | 금속 스트립 코팅 장치 및 그 방법 |
CN110846601A (zh) * | 2018-08-20 | 2020-02-28 | 上海梅山钢铁股份有限公司 | 一种锌液处理装置 |
CN110846601B (zh) * | 2018-08-20 | 2021-12-14 | 上海梅山钢铁股份有限公司 | 一种锌液处理装置 |
CN115537699A (zh) * | 2022-10-19 | 2022-12-30 | 山东钢铁集团日照有限公司 | 一种在宽幅镀锌机组下小宽厚比产品的稳定生产方法 |
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