JP2021515850A - 金属ストリップをディップコーティングのための方法 - Google Patents
金属ストリップをディップコーティングのための方法 Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 14
- 238000003618 dip coating Methods 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 27
- 238000007747 plating Methods 0.000 claims abstract description 11
- 238000002679 ablation Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 21
- 238000000137 annealing Methods 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000001995 intermetallic alloy Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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- 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
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- 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
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- 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
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- 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
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Abstract
Description
この方法は、
− 鋼板を焼鈍炉で再結晶焼鈍することと、
− 鋼板を筒口内で焼鈍炉から溶融めっき浴へ進めることと、
− 浴中の焼鈍鋼板を溶融めっきすることと、
を含む。
− 前記筒口が持ち上げられ、下側の取り外し可能な部分を液体浴の上方に配置する、
− オーバーフローが持ち上げられ、取り外されるおよび/または取り外し可能な、筒口の下部が取り外されて、新しいものと交換される、
方法に関する。
特定の実施形態では、本発明の教示を使用すると、浴の長さは、3900mmであり、その幅は2720であり、筒口の長さは、2300mmであり、筒口の幅は、525mmであり、これにより、1800mm幅のストリップの通過を可能にする。使用時のサボーの高さは1283mmである。トレーは、長さ2200mm、幅150mmであり、外壁については、高さ150mm、内壁については、高さ100mmである。移動可能なシステム23は、浴槽の幅に沿って420mmで移動されることができ、4本のねじによって、500mmの幅の浴槽側部にねじ止めされる。ねじは、それぞれの両端に2本ずつある。支持体が取り付けられる移動可能なシステム23は、500mmの長さである。内壁の上部は浴槽側部から120mm下、外壁は浴槽側部から70mm下にある。それぞれ2回、ねじ止めされた、500mmの長さの2枚のプレートによって、一方の側では、移動可能なシステムに、トレーは固定されている。もう一方の側では、トレーはレベル計を含む。この移動可能なシステムは、浴槽の幅に沿って3本のねじでレベル計システムに固定されている。
好ましい実施形態では、(仏国特許発明第2816639中と同様に)古典的なオーバーフローは、この特許に記載されたオーバーフローに置き換えられている。
A) ラインを停止する、
B) 冷却(待機)する、
C) 浴槽のハードウェアを取り外す、
D) ポットを下げる、
E) ポットをガレージ位置に移動する、
F) プラットフォームを取り付ける、
G) ストリップを切断する、
H) (オーバーフローと一緒に)筒口を取り外す、
I) (オーバーフローと一緒に)新しい筒口を取り付ける、
J) ストリップをトレッディング(treading)する、
K) ストリップを溶接する、
L) プラットフォームを取り外す、
M) ポットをガレージ位置から移動する、
N) ポットを上げる、
O) 浴槽のハードウェアを取り付ける、
P) 筒口を不活性化する、
Q) 加熱する、
R) ラインを再始動する。
Claims (15)
- 金属ストリップ(9)の連続溶融めっきのための装置であって、
−焼鈍炉と、
−液体金属浴(3)を含むタンク(2)と、
−焼鈍炉と前記タンク(2)とを接続する筒口であって、その筒口を通して金属ストリップ(9)が保護雰囲気中を進み、前記筒口の下部であるサボー(5)は、浴の表面と共に、この筒口の内側に、液体シール(6)を画定するように、少なくとも部分的に液体金属浴(3)に浸漬される、筒口と、
−筒口に接続されていないオーバーフロー(7)であって、トレーが前記液体金属浴(3)に入り込むときに、ストリップ(9)の近傍に配置されて前記液体シール(6)によって包囲される、少なくとも1つのトレー(8)を備える、前記オーバーフロー(7)と、
を備える、金属ストリップ(9)の連続溶融めっきのための装置。 - 前記筒口が、昇降可能であることを特徴とする、請求項1に記載の装置。
- 前記トレー(8)が、
−液体シールの表面に向けられたストリップの一方の側に面する内壁(10)であって、その内壁の上方縁部が前記浴(3)の表面の下に配置されている内壁(10)と、
−液体シールの表面に向けられた筒口に面する外壁(11)であって、その外壁の上方縁部が前記浴(3)の表面の上方に配置されている外壁(11)と、
−前記外壁(11)下方縁部と前記内壁(10)の下方縁部との間の接続部(20)と、
−前述の壁の各共有端部(13)において、それらすべての縁部を接続する壁と、
−内壁(10)の上方縁部が、外壁(11)の上方縁部よりも低いことと、
によって形成される、請求項1に記載の装置。 - 前記オーバーフロー(7)が、このトレー(8)内の液体金属の自然な流れを設定するように、液体シールの表面より下のレベルに液体金属のレベルを維持するための手段(18)を備え、金属酸化物粒子および金属間化合物粒子が液体金属の流れに対して向流として上昇することを防止するように、前記液体金属の自然な流れが、50mmより大きい、請求項3に記載の装置。
- トレーの第1の内壁(14)の上方縁部が、長手方向に、一連の凹み部および突出部を備える、請求項1に記載の装置。
- 前記オーバーフロー(7)が、前記筒口が持ち上げられたときに取り外し可能である、請求項1に記載の装置。
- トレー(8)およびレベルを維持するための手段(18)が、支持体(4および16)によってタンク(2)の縁部(21および22)に固定されている、請求項1に記載の装置。
- トレー(8)が、コネクタ(15)によってレベルを維持するための手段(18)および支持体(16)に接続され、コネクタの最下部が液体シールの下にあって、筒口の下部の端部、サボー(5)が液体シールの下にあることを可能にするように、および、支持体の最下部の上にあることを可能にするように、オーバーフローの前記コネクタ(15)が、コーティング浴の底に向かって湾曲されている、請求項1および7に記載の装置。
- トレー(8)およびレベルを維持するための手段(18)が固定されている支持体(16および4)が、浴槽の縁部に沿って変位可能/移動可能であり、オーバーフロー(7)が、前記浴槽の縁部に沿って移動することを可能にする、請求項1および7に記載の装置。
- トレー(8)およびレベルを維持するための手段(18)が固定された支持体(16および4)が、浴表面に対して垂直に沿って変位可能である、請求項1および7に記載の装置。
- オーバーフロー(7)が、液体金属(3)内への金属ストリップの入口進入部に対して対称的に配置された2つのトレー(8)を有する、請求項1に記載の装置。
- オーバフロー(7)が、内壁(10)と、外壁(11)と、水平壁(20)とによって形成された、金属ストリップ(9)を連続的に取り囲む1つのトレー(8)から構成され、内壁(10)が、液体シールの表面に向けられたストリップの一方の側に面し、その内壁の上方縁部が、前記浴の下方に配置され、外壁(11)が、液体シールの表面に向けられた筒口に面し、その外壁の上方縁部が、前記浴の表面の上方に配置され、水平壁(20)が、外壁の下方縁部と内壁の下方縁部の間にある、請求項1に記載の装置。
- 筒口が、取り外し可能な上側部分と下側部分を含む、請求項1に記載の装置。
- 請求項1〜13に記載の装置における、溶融めっきによって金属コーティングを堆積させるための方法であって、
−鋼板を焼鈍炉で再結晶焼鈍することと、
−鋼板を筒口内で焼鈍炉から溶融めっき浴(3)へ進めることと、
−浴中の焼鈍鋼板を溶融めっきすることと、
を含む、方法。 - 請求項1〜13記載の装置における、溶融めっき工程からの筒口の摩耗した下部の交換方法であって、
−前記筒口が持ち上げられ、下部の取り外し可能な部分を液体浴の上方に配置する、
−オーバーフロー(7)が持ち上げられ、取り外されるおよび/または取り外し可能な、筒口の下部が取り外され、新しいものと交換される、方法。
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PCT/IB2018/051603 WO2019175623A1 (en) | 2018-03-12 | 2018-03-12 | Method for dip-coating a metal strip |
PCT/IB2019/051190 WO2019175684A1 (en) | 2018-03-12 | 2019-02-14 | Method for dip-coating a metal strip |
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WO2019224584A1 (en) * | 2018-05-25 | 2019-11-28 | Arcelormittal | Method for dip-coating a metal strip |
FR3105796B1 (fr) | 2019-12-26 | 2022-06-10 | Fives Stein | Dispositif pour l’evacuation de mattes de la surface d’un bain de metal liquide a l’interieur d’une descente de cloche d’une ligne de revetement en continu d’une bande metallique |
US11898251B2 (en) * | 2020-05-22 | 2024-02-13 | Cleveland-Cliffs Steel Properties Inc. | Snout for use in a hot dip coating line |
US11939656B2 (en) | 2020-05-22 | 2024-03-26 | Cleveland-Cliffs Steel Properties Inc. | Snout for use in a hot dip coating line |
KR102407797B1 (ko) * | 2020-10-23 | 2022-06-10 | (주)스텝이엔지 | 댐 형성부 교체가 가능한 스나우트 장치 |
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