JPH03287752A - Continuous hot dipping device for band steel - Google Patents
Continuous hot dipping device for band steelInfo
- Publication number
- JPH03287752A JPH03287752A JP8982190A JP8982190A JPH03287752A JP H03287752 A JPH03287752 A JP H03287752A JP 8982190 A JP8982190 A JP 8982190A JP 8982190 A JP8982190 A JP 8982190A JP H03287752 A JPH03287752 A JP H03287752A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- nozzle
- band steel
- gas
- wiping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 238000007598 dipping method Methods 0.000 title claims abstract 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 238000007747 plating Methods 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、鋼帯の連続溶融めっき装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a continuous hot-dip coating apparatus for steel strip.
連続溶融めっき装置は、第７図に示すように、鋼帯（ａ
）の表面清浄化・熱処理等を施すための前処理炉（１）
、アルミニウムや亜鈴などの溶融めっき金属を保持した
めっき浴（２）、めっき後の鋼帯表面のめっき金属目付
量を調整するため、めっき浴上方に配設されたワイピン
グノズル（４）等からなっている。前処理炉（１）から
出た鋼帯（ａ）は、めっき浴（２）内に導入された後、
浴中のシンクロール（３）を介して垂直上方に引出され
、ついで鋼帯の両面に対向するワイピングノズル（４）
の噴射ガス流により余剰の溶融めっき金属が吹拭された
のち、次工程側に送給される。なお、ワイピングノズル
の上方には、めっき層を冷却するためのクーリングタワ
ーやめつき金属と鋼帯の界面を合金化させるための加熱
炉などが配設される場合もある。As shown in Fig. 7, the continuous hot-dip plating equipment
) Pretreatment furnace (1) for surface cleaning, heat treatment, etc.
It consists of a plating bath (2) that holds hot-dipped metals such as aluminum and dumbbell, and a wiping nozzle (4) placed above the plating bath to adjust the coating weight of the plated metal on the surface of the steel strip after plating. ing. After the steel strip (a) coming out of the pretreatment furnace (1) is introduced into the plating bath (2),
A wiping nozzle (4) is drawn vertically upward through a sink roll (3) in the bath and then faces both sides of the steel strip.
After the excess hot-dip plating metal is blown off by the jet gas flow, it is sent to the next process. Note that above the wiping nozzle, a cooling tower for cooling the plating layer, a heating furnace for alloying the interface between the plated metal and the steel strip, etc. may be provided.
しかし、このようなガスワイピング法においては、鋼帯
幅方向両端部におけるめっき金属目付量が鋼帯の中央部
より多くなる現象（以下、これをエツジオーバーコーテ
イングと呼ぶ）が発生し問題となっている。すなわちエ
ツジオーバーコーテイングが発生し、鋼帯幅方向両端部
のめっき金属目付量が所定の規格以上となった場合、後
工程でこれを削り落とすか、或いは規格外製品として廃
棄する必要が生じ、生産効率低下の原因となる。However, in this gas wiping method, a phenomenon occurs in which the coating weight at both ends of the steel strip in the width direction is greater than at the center of the steel strip (hereinafter referred to as edge overcoating), which poses a problem. There is. In other words, if edge overcoating occurs and the coating weight of the plated metal at both ends in the width direction of the steel strip exceeds a predetermined standard, it will be necessary to scrape it off in a later process or discard it as a non-standard product, resulting in a reduction in production. This causes a decrease in efficiency.
また、鋼帯幅方向におけるめっき金属目付量のばらつき
が所定の基準以上になると、後工程で合金化処理をする
ような場合に、鋼帯幅方向で合金化の度合いが異なる不
良品が発生し、生産効率低下の原因となる。In addition, if the variation in the coating weight in the width direction of the steel strip exceeds a predetermined standard, defective products with different degrees of alloying in the width direction of the steel strip may occur when alloying is performed in the subsequent process. , causing a decrease in production efficiency.
このような問題を解決するために、本発明者らはエツジ
オーバーコーテイングの原因について詳細に検討した。In order to solve these problems, the present inventors conducted a detailed study on the causes of edge overcoating.
まず、従来のガスワイピング法において、鋼帯表面から
の溶融めっき金属のワイピング状況について、高速度カ
メラによる撮影、分析を行なった。その結果、第８図に
矢印で示すような溶融めっき金属の流れが観察された。First, we used a high-speed camera to photograph and analyze the wiping of hot-dip plated metal from the steel strip surface in the conventional gas wiping method. As a result, a flow of the hot-dip plated metal as shown by the arrow in FIG. 8 was observed.
この観察結果は、従来のガスワイピング法においては、
鋼帯の幅方向両端部近傍で気体の噴射に伴って流れ込む
随伴流の影響、および鋼帯の幅からはずれた位置での対
向噴流の相互干渉により生ずる二次流れの影響等によっ
て、鋼帯の幅方向両端部近傍で、溶融めっき金属を鋼帯
幅方向の両端部に吹払う流れが生じており、この流れが
エツジオーバーコーテイングの原因であることを示して
いる。すなわち、溶融めっき金属が鋼帯輻方向の両端部
に吹払われると、ワイピングノズルで吹払うべき溶融め
っき金属量が、鋼帯輻方向中央部よりも鋼帯両端部側の
ほうが多くなるため、鋼帯幅方向両端部側での成仏能力
が不足し、めっき金属目付量が鋼帯の中央部より多くな
るエツジオーバーコーテイングが発生するのである。This observation result shows that in the conventional gas wiping method,
Due to the influence of the accompanying flow that flows in with the injection of gas near both ends of the steel strip in the width direction, and the influence of the secondary flow caused by the mutual interference of opposing jets at positions away from the width of the steel strip, Near both ends in the width direction, a flow occurs that blows away the hot-dip plated metal to both ends in the width direction of the steel strip, indicating that this flow is the cause of edge overcoating. In other words, when hot-dip-plated metal is blown off to both ends of the steel strip in the radial direction, the amount of hot-dip-plated metal to be blown away by the wiping nozzle is larger at both ends of the steel strip than at the center of the steel strip in the radial direction. The forming ability at both ends of the steel strip in the width direction is insufficient, and edge overcoating occurs in which the coating weight of the plated metal is greater than that at the center of the steel strip.
本発明は、このような従来の問題に鑑み、エツジオーバ
ーコーテイングを適切に防止できる連続溶融めっき装置
の提供をその目的とする。In view of these conventional problems, an object of the present invention is to provide a continuous hot-dip plating apparatus that can appropriately prevent edge overcoating.
このため本発明は、エツジオーバーコーテイングの原因
となる気体の流れ、すなわち鋼帯の幅方向両端部近傍で
溶融めっき金属を鋼帯幅方向の両端部に吹払う気体流の
発生を抑制することができるようにしたもので、その特
徴とするところは、ワイピングノズル近傍で且つ鋼帯輻
方向両端部の外側位置に、気体を鋼帯方向に噴射する補
助ノズルを配置したことにある。Therefore, the present invention is capable of suppressing the generation of gas flows that cause edge overcoating, that is, gas flows that blow away the hot-dip plated metal near both ends of the steel strip in the width direction. Its feature is that auxiliary nozzles for injecting gas in the direction of the steel strip are arranged near the wiping nozzle and on the outside of both ends in the steel strip direction.
上述したように、従来のガスワイピング法では、鋼帯幅
方向の両端部近傍で溶融めっき金属を鋼帯幅方向両端部
に吹払う気体の流れが生じており、この流れがエツジオ
ーバーコーテイングの原因となっていた。As mentioned above, in the conventional gas wiping method, a gas flow is generated near both ends of the steel strip in the width direction, which blows off the hot-dipped metal to both ends of the steel strip in the width direction, and this flow is the cause of edge overcoating. It became.
この点、本発明の装置では、補助ノズルを使用すること
により、鋼帯輻方向両端部近傍において、上記気体流と
対向するような気体の流れを生じさせ、溶融めっき金属
を鋼帯輻方向両端部に吹き払うような気体流れを抑制す
る。これにより、ワイピングノズルで吹き払うべき溶融
めっき金属の量が、上述したように鋼帯幅方向両端部側
だけ増加するということはなく、エツジオーバーコーテ
イングの発生を効果的に抑制できる。In this regard, in the apparatus of the present invention, by using an auxiliary nozzle, a gas flow opposite to the above-mentioned gas flow is generated near both ends of the steel strip in the direction of the steel strip. Suppress gas flow that blows away parts. As a result, the amount of hot-dip plated metal to be blown away by the wiping nozzle does not increase only at both ends in the width direction of the steel strip, as described above, and the occurrence of edge overcoating can be effectively suppressed.
鋼帯の幅方向両端部近傍で、溶融めっき金属を鋼帯両端
部方向に吹き払う気体の流れは、第８図に示す観察効果
から、ワイピングノズルの近傍で特に顕著であることが
判明しているから、補助ノズルはワイピングノズルに近
接して設置する。補助ノズルからの噴射気体が鋼帯に当
る上下方向での位置は、ワイピングノズルの噴射位置（
気体が鋼帯に当る位置）か、それとも下方である。また
、補助ノズルから気体を噴射する角度は、水平方向に対
し下方側にＯ〜４５°の範囲とすることが好ましい。上
記噴射角度がＯ°未満、すなわち水平方向に対し上向き
であると、噴射気体がワイピングノズルによる気体噴射
位置を通過し、目標めっき目付量に調整された鋼帯の表
面に、ワイビングノズルで吹き払った溶融めっき金属を
再付着させることになり、製品の品質低下を招くため好
ましくない。また、噴射角度が４５°より大きくなると
、補助ノズルによる気体噴射による効果そのものが十分
得られなくなり、好ましくない。From the observation effect shown in Figure 8, it has been found that the flow of gas that blows off the hot-dipped metal toward both ends of the steel strip in the vicinity of both ends in the width direction of the steel strip is particularly noticeable near the wiping nozzle. Therefore, the auxiliary nozzle is installed close to the wiping nozzle. The position in the vertical direction where the jetted gas from the auxiliary nozzle hits the steel strip is determined by the jetting position of the wiping nozzle (
(where the gas hits the steel strip) or below. Further, it is preferable that the angle at which the gas is injected from the auxiliary nozzle is in the range of 0 to 45 degrees downward with respect to the horizontal direction. When the above injection angle is less than 0°, that is, upward with respect to the horizontal direction, the injection gas passes through the gas injection position of the wiping nozzle and is blown onto the surface of the steel strip adjusted to the target plating area weight. This is undesirable because the removed hot-dip plating metal will be re-deposited, leading to a deterioration in the quality of the product. Moreover, if the injection angle is larger than 45°, the effect of the gas injection by the auxiliary nozzle itself will not be sufficiently obtained, which is not preferable.
補助ノズルと鋼帯両端部との間隔は、補助ノズルから気
体を噴射する角度と気体の噴射速度に応じて適宜選択す
ることができる。噴射速度が大きく、噴射角度が小さい
程、補助ノズルと鋼帯との間隔を広くとることができる
。The distance between the auxiliary nozzle and both ends of the steel strip can be appropriately selected depending on the angle at which the gas is jetted from the auxiliary nozzle and the jetting speed of the gas. The larger the injection speed and the smaller the injection angle, the wider the distance between the auxiliary nozzle and the steel strip.
補助ノズルと鋼帯両端部との間隔は、鋼帯の幅が変化し
たり、鋼帯が蛇行しながら走行する場合にも一定に保た
れることが好ましく、このため、補助ノズルを駆動装置
と連結し、補助ノズルを鋼帯輻方向で位置調整できるよ
うにすることが好ましい。It is preferable that the distance between the auxiliary nozzle and both ends of the steel strip be kept constant even when the width of the steel strip changes or when the steel strip runs in a meandering manner. It is preferable to connect them so that the position of the auxiliary nozzle can be adjusted in the direction of the steel strip.
第１図ないし第３図は本発明の一実施例を示すものであ
る。図中、第８図の従来装置と同一の構成については同
一の符号を付し、その説明は省略する。1 to 3 show one embodiment of the present invention. In the figure, the same components as those of the conventional device shown in FIG. 8 are denoted by the same reference numerals, and the explanation thereof will be omitted.
図において、（５）はワイピングノズル（４）の近傍に
おいて鋼帯両端部と対向するようにして配置される一対
の補助ノズルである。In the figure, (5) is a pair of auxiliary nozzles arranged near the wiping nozzle (4) so as to face both ends of the steel strip.
該補助ノズル（５）は、第３図に示すように、−対のワ
イピングノズル（４）間において、ワイピングノズルに
よる噴射位Ｗ（Ｓ）よりも下方に向は気体を噴射できる
よう配置されている。本実施例では、補助ノズル（５）
のガス噴射方向は水平方向に対し下向きの角度αを有し
ている。この角度αは上述したような理由によりＯ〜４
５°の範囲に設定される。As shown in FIG. 3, the auxiliary nozzle (5) is arranged between the pair of wiping nozzles (4) so as to be able to inject gas downward from the injection position W(S) by the wiping nozzle. There is. In this embodiment, the auxiliary nozzle (5)
The gas injection direction has a downward angle α with respect to the horizontal direction. This angle α is O~4 due to the reason mentioned above.
It is set within a range of 5°.
また、補助ノズル（５）は駆動装置（６）に連絡されて
おり、鋼帯輻方向での位置調整が可能となっている。Further, the auxiliary nozzle (5) is connected to the drive device (6), and its position can be adjusted in the direction of the steel strip.
なお、図中（Ｖ）は補助ノズル（５）からのガス噴射方
向を示す。Note that (V) in the figure indicates the direction of gas injection from the auxiliary nozzle (5).
第４図は本発明の他の実施例を示すもので、−対のワイ
ピングノズル（４）の間隔が狭く、ワイピングノズル間
に補助ノズルを配置できないような場合、同図に示すよ
うに、補助ノズル（５）を、ワイピングノズル（４）に
近接してその下側に設けるようにしてもよい。FIG. 4 shows another embodiment of the present invention, in which the distance between the pair of wiping nozzles (4) is narrow and it is not possible to arrange an auxiliary nozzle between the wiping nozzles, as shown in the figure. The nozzle (5) may be provided close to and below the wiping nozzle (4).
第５図は補助ノズル（５）の他の実施例を示すもので、
補助ノズル（５）の本体に気体噴射方向に延出する整流
板（７）を取付け、気体の噴射効果を高めたものである
。FIG. 5 shows another embodiment of the auxiliary nozzle (5),
A rectifier plate (7) extending in the gas injection direction is attached to the main body of the auxiliary nozzle (5) to enhance the gas injection effect.
第６図は、第１図ないし第３図に示すような本発明装置
（補助ノズルの気体噴射角度α：３０°）を用い、鋼帯
の溶融めっきを実施した場合におけるめっき金属目付量
の鋼帯輻方向分布を、従来装置による場合と比較して示
したものである。これによれば、本発明装置によりエツ
ジオーバーコーテイングを適切に防止できることが判る
。Figure 6 shows the coated metal weight of steel when a steel strip is hot-dipped using the apparatus of the present invention as shown in Figures 1 to 3 (auxiliary nozzle gas injection angle α: 30°). The band direction distribution is shown in comparison with the case using a conventional device. This shows that the device of the present invention can appropriately prevent edge overcoating.
以上述べた本発明装置によれば、Ｓ＊の溶融めっきにお
けるエツジオーバーコーテイングの発生を適切に防止す
ることができ、鋼帯幅方向においてめっき目付量が均一
な製品を得ることができる。According to the apparatus of the present invention described above, it is possible to appropriately prevent the occurrence of edge overcoating during S* hot-dip plating, and it is possible to obtain a product with a uniform coating weight in the width direction of the steel strip.
第１図ないし第３図は本発明の一実施例を示すもので、
第１図は前処理炉およびめっき金属浴を断面した状態で
示す全体説明図、第２図は第１図中ｎ−ｎ線に沿う矢視
図、第３図は第１図中ｎ−ｎ線に沿う矢視図である。第
４図は本発明の他の実施例を示す説明図である。第５図
は本発明装置における補助ノズルの他の実施例を示す説
明図である。第６図は本発明装置によるめっき鋼帯の幅
方向めっき金属目付量分布を従来装置による場合と比較
して示したものである。第７図は従来の連続溶融めっき
装置を示す説明図である。第８図は従来装置において観
察された溶融めっき金属の流れを示す説明図である。
図において、（１）は鋼帯前処理炉、（２）はめっき浴
、（３）はシンクロール、（４）はワイピングノズル、
（５）は補助ノズル、（６）は駆動装置である。
第
４
図
第
図
亜翻目イ寸量（片面ｇｅｍ”ｊ
８ 呂
第
図1 to 3 show an embodiment of the present invention,
Fig. 1 is an overall explanatory diagram showing the pretreatment furnace and plating metal bath in cross section, Fig. 2 is a view taken along the line n-n in Fig. 1, and Fig. 3 is an illustration of the pretreatment furnace and the plating metal bath in cross section. It is an arrow view along a line. FIG. 4 is an explanatory diagram showing another embodiment of the present invention. FIG. 5 is an explanatory diagram showing another embodiment of the auxiliary nozzle in the apparatus of the present invention. FIG. 6 shows the distribution of coating metal weight in the width direction of a plated steel strip produced by the apparatus of the present invention in comparison with that produced by the conventional apparatus. FIG. 7 is an explanatory diagram showing a conventional continuous hot-dip plating apparatus. FIG. 8 is an explanatory diagram showing the flow of hot-dip plated metal observed in the conventional apparatus. In the figure, (1) is a steel strip pretreatment furnace, (2) is a plating bath, (3) is a sink roll, (4) is a wiping nozzle,
(5) is an auxiliary nozzle, and (6) is a drive device. Figure 4 Dimensions (one-sided gem"j 8 Lu diagram)
Claims (3)
し、シンクロールを介してめっき浴から垂直上方に引上
げた後、めっき浴上方に配置されたワイピングノズルに
て鋼帯表面に気体を噴射し、溶融めっき金属の付着量を
制御する鋼帯の連続溶融めっき装置において、ワイピン
グノズルの近傍で且つ鋼帯幅方向両端部の外側位置に、
気体を鋼帯方向に噴射する補助ノズルを配置したことを
特徴とする鋼帯の連続溶融めっき装置。(1) The steel strip coming out of the pretreatment furnace is introduced into the molten metal plating bath, and after being pulled vertically upward from the plating bath via a sink roll, the steel strip surface is coated with a wiping nozzle placed above the plating bath. In a continuous hot-dip plating device for steel strips that injects gas to control the amount of hot-dip metal deposited, near the wiping nozzle and on the outside of both ends of the steel strip in the width direction,
A continuous hot-dip plating apparatus for steel strips, characterized in that an auxiliary nozzle is arranged to spray gas in the direction of the steel strip.
置に連結されていることを特徴とする請求項（１）に記
載の鋼帯の連続溶融めっき装置。(2) The continuous hot dipping apparatus for steel strip according to claim 1, wherein the auxiliary nozzle is connected to a drive device that can control the position of the nozzle.
し下方側に０〜４５゜となるよう設けたことを特徴とす
る請求項（１）または（２）に記載の鋼帯の連続溶融め
っき装置。(3) Continuous melting of the steel strip according to claim (1) or (2), characterized in that the auxiliary nozzle is provided such that its gas injection angle is 0 to 45 degrees downward with respect to the horizontal direction. Plating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8982190A JPH03287752A (en) | 1990-04-04 | 1990-04-04 | Continuous hot dipping device for band steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8982190A JPH03287752A (en) | 1990-04-04 | 1990-04-04 | Continuous hot dipping device for band steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03287752A true JPH03287752A (en) | 1991-12-18 |
Family
ID=13981422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8982190A Pending JPH03287752A (en) | 1990-04-04 | 1990-04-04 | Continuous hot dipping device for band steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03287752A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077269A2 (en) * | 1999-08-06 | 2001-02-21 | Kawasaki Steel Corporation | Gas wiping apparatus and method |
| JP2011252180A (en) * | 2010-05-31 | 2011-12-15 | Jfe Steel Corp | Method of manufacturing hot dip metal coated steel strip |
| JP2014214354A (en) * | 2013-04-26 | 2014-11-17 | 日新製鋼株式会社 | Wiping gas apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5062135A (en) * | 1973-10-05 | 1975-05-28 | ||
| JPS57210966A (en) * | 1981-06-17 | 1982-12-24 | Sumitomo Metal Ind Ltd | Control method for weight in continuous hot dipping |
-
1990
- 1990-04-04 JP JP8982190A patent/JPH03287752A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5062135A (en) * | 1973-10-05 | 1975-05-28 | ||
| JPS57210966A (en) * | 1981-06-17 | 1982-12-24 | Sumitomo Metal Ind Ltd | Control method for weight in continuous hot dipping |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077269A2 (en) * | 1999-08-06 | 2001-02-21 | Kawasaki Steel Corporation | Gas wiping apparatus and method |
| EP1077269A3 (en) * | 1999-08-06 | 2002-11-27 | Kawasaki Steel Corporation | Gas wiping apparatus and method |
| US6713129B2 (en) | 1999-08-06 | 2004-03-30 | Jfe Steel Corporation | Gas wiping apparatus and method |
| JP2011252180A (en) * | 2010-05-31 | 2011-12-15 | Jfe Steel Corp | Method of manufacturing hot dip metal coated steel strip |
| JP2014214354A (en) * | 2013-04-26 | 2014-11-17 | 日新製鋼株式会社 | Wiping gas apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20110064506A (en) | Apparatus and method for manufacturing zero spangle zn-al alloy hot-dip plated steel sheet | |
| TWI717807B (en) | Manufacturing method of molten metal-coated steel strip and continuous molten metal coating equipment | |
| CN103998641A (en) | Process and apparatus for the hot-dip coating of a metal strip with a metallic coating | |
| JP2009203500A (en) | Method for producing hot dip metal plated steel strip | |
| JP4677846B2 (en) | Manufacturing method of molten metal plated steel strip | |
| JPH03287752A (en) | Continuous hot dipping device for band steel | |
| JP3617473B2 (en) | Method for producing hot dip galvanized steel sheet | |
| US4052234A (en) | Method for continuously quenching electrolytic tin-plated steel strip | |
| JPH06272006A (en) | Device for removing zinc fume in snout in hot-dip metal coating line | |
| JPH042756A (en) | Gas wiping method for continuous hot dipping | |
| JP3224208B2 (en) | Method for preventing adhesion of bath surface splash in continuous hot metal plating line | |
| JP2000045056A (en) | Cooling device for hot dip zinc-aluminum alloy plated wire | |
| JP2002348650A (en) | Wiping device for hot-dip plating, and method | |
| JP2821823B2 (en) | Coating weight control method for hot dip galvanizing | |
| JPH06346211A (en) | High-speed hot-dip metal coating device | |
| JP3915615B2 (en) | Electrotin-plated steel sheet reflow treatment cooling nozzle, cooling device and cooling method | |
| JP4239354B2 (en) | Laminar flow nozzle, cooling device and cooling method for electrotinned steel sheet | |
| JPH10265930A (en) | Adjusting method for quantity of adhesion of molten metal and device for the same in continuos hot-dip coating | |
| JPS62205260A (en) | Continuous hot dipping method | |
| JP2850539B2 (en) | High pressure molten metal feeder | |
| JP2004204327A (en) | Method of producing continuous hot dip metal-coated steel sheet | |
| KR800000533B1 (en) | Continuous plating apparatus for steel strip | |
| KR200169754Y1 (en) | Gas wiping device for hot-dip metal coating | |
| JPH04285195A (en) | Method for preventing quench staining of tin plating | |
| CN117897515A (en) | Method for producing molten metal-plated steel strip |