JP2815254B2 - Gas wiping equipment - Google Patents
Gas wiping equipmentInfo
- Publication number
- JP2815254B2 JP2815254B2 JP21085691A JP21085691A JP2815254B2 JP 2815254 B2 JP2815254 B2 JP 2815254B2 JP 21085691 A JP21085691 A JP 21085691A JP 21085691 A JP21085691 A JP 21085691A JP 2815254 B2 JP2815254 B2 JP 2815254B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- header
- pipe
- gas
- secondary header
- 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.)
- Expired - Fee Related
Links
Landscapes
- Coating With Molten Metal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、連続溶融金属めっきに
おけるガスワイピング装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas wiping apparatus for continuous hot metal plating.
【０００２】[0002]
【従来の技術】一般に連続溶融金属めっきのめっき付着
量制御用のガスワイピング装置は、図８（ａ）に示すよ
うに１次ヘッダ１、２次ヘッダ２ａ、ノズル３を備えて
いる。ワイピングガスを、２次ヘッダ２ａの両端から吹
き込むと中央で、また１端から吹き込むと他端でそれぞ
れワイピング圧力が高圧となり、ガス圧がノズル幅方向
で不均一となる。従って、ワイピングガス圧を幅方向で
均圧化する目的で図示のように、１次〜２次ヘッダ間は
８本程度の連絡管４ａによって接続される構造となって
いる。2. Description of the Related Art Generally, a gas wiping apparatus for controlling a coating weight of a continuous hot-dip metal plating is provided with a primary header 1, a secondary header 2a and a nozzle 3 as shown in FIG. When the wiping gas is blown from both ends of the secondary header 2a, the wiping pressure becomes high at the center and at the other end when blown from one end, and the gas pressure becomes non-uniform in the nozzle width direction. Therefore, for the purpose of equalizing the wiping gas pressure in the width direction, the primary and secondary headers are connected by about eight communication tubes 4a as shown in the figure.
【０００３】なお図８（ｂ）は２次ヘッダの断面を示し
たものである。FIG. 8B shows a cross section of a secondary header.
【０００４】[0004]
【発明が解決しようとする課題】上記のような従来装置
では、１次ヘッダから２次ヘッダのノズルまでが連結管
４ａの存在によって大きなスペースを占めることにな
る。特公昭５５−４８１０２号公報、特開昭６２−３０
８６４号公報、特公昭６０−５５５９２号公報等にトッ
プドロス低減、めっき表面欠陥防止、騒音防止等の目的
で、ワイピング部周辺をシールボックスによって囲み、
内部を非酸化性雰囲気に保つ技術手段が記載されてい
る。これらの技術手段のような従来のワイピング装置で
は、１次ヘッダを含めて２次ヘッダ、ノズルをシールボ
ックスに収納しようとすると、シールボックスがかなり
大きな寸法となり、脱着その他の取扱いが困難な上、周
辺機器と干渉する。また、２次ヘッダ及びノズルのみを
ボックスに収めようとすると、１次〜２次ヘッダ間の分
岐管でのボックスのシール及びワイピング装置の上下、
左右の動きが困難となるという問題がある。本発明は上
述のような問題を解決するガスワイピング装置を提供す
ることを課題とするものである。In the conventional apparatus as described above, the space from the primary header to the nozzles of the secondary header occupies a large space due to the presence of the connecting pipe 4a. JP-B-55-48102, JP-A-62-30
No. 864, Japanese Patent Publication No. 60-55592, etc., for the purpose of reducing top dross, preventing plating surface defects, preventing noise, etc., enclose the wiping area with a seal box.
Technical means for keeping the interior in a non-oxidizing atmosphere are described. In a conventional wiping apparatus such as these technical means, when the secondary header and the nozzle including the primary header are to be stored in the seal box, the seal box becomes considerably large in size, and it is difficult to attach and detach and other handling. Interference with peripheral devices. In addition, if only the secondary header and the nozzle are to be housed in the box, the sealing of the box at the branch pipe between the primary and secondary headers and the upper and lower parts of the wiping device,
There is a problem that it is difficult to move left and right. An object of the present invention is to provide a gas wiping device that solves the above-described problems.
【０００５】[0005]
【課題を解決するための手段】本発明は上述の問題点を
解決するものであり、スリット状ガス噴射ノズルを設け
た２次ヘッダと、２次ヘッダへ複数の連結管を介して高
圧ガスを供給する１次ヘッダを備えたガスワイピング装
置に適用され、次の技術手段を採った。すなわち、連結
管は２次ヘッダの両側に各１本配設すると共に、２次ヘ
ッダ内にノズルの幅方向ガス噴射量を均一化する周面に
複数の孔を穿孔したパイプを設け、高圧ガスをパイプを
介してノズルへ供給することを特徴とするガスワイピン
グ装置である。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a secondary header provided with a slit-shaped gas injection nozzle, and a high-pressure gas supplied to the secondary header through a plurality of connecting pipes. The present invention was applied to a gas wiping device provided with a primary header to be supplied, and employed the following technical means. That is, one connecting pipe is provided on each side of the secondary header, and a pipe having a plurality of holes formed on a peripheral surface of the secondary header for equalizing the gas injection amount in the width direction of the nozzle is provided in the secondary header. Is supplied to a nozzle via a pipe.
【０００６】[0006]
【作用】本発明によれば、２次ヘッダ内に周面に複数の
孔を穿孔したパイプを内蔵し、かつ、１次〜２次ヘッダ
間を２本の連絡管に接続し、１次ヘッダからのワイピン
グガスをパイプに吹き込み、ワイピングガスをパイプを
介してノズルに供給する構造としたので、ワイピングガ
ス圧力のノズル幅方向での均一化機能を失うことなく、
従来のようなスペースを取らないよりコンパクトなワイ
ピング装置とすることができた。本装置を、シールボッ
クスと組合わせる場合、ボックスの寸法を小さくするこ
とができ、また、１次〜２次ヘッダ間の２本の連絡管部
分でボックスと連結するので連結部のシール及びワイピ
ング装置の上下、左右の動きが容易となった。According to the present invention, a secondary header has a built-in pipe with a plurality of holes perforated on its peripheral surface, and a connection between the primary and secondary headers is connected to two connecting pipes. Wiping gas is blown into the pipe and the wiping gas is supplied to the nozzle via the pipe, so that the function of equalizing the wiping gas pressure in the nozzle width direction is not lost.
A more compact wiping device that does not take up space as in the conventional case can be obtained. When the present device is combined with a seal box, the size of the box can be reduced, and the connecting portion is connected to the box at two connecting pipe portions between the primary and secondary headers. Up, down, left and right movement became easier.
【０００７】[0007]
【実施例】図１は本発明の位置実施例の説明図であり、
図１（ａ）は斜視図、図１（ｂ）は２次ヘッダ２の断面
図を示している。図２に示すような直径６ｍｍ、円周上
に４列、２５ｍｍピッチの孔６を有するパイプ５を、２
次ヘッダ２に内蔵した。この装置のノズル３の先端から
のワイピングガス吹出圧力をオフラインでノズル幅方向
に測定したところ、図３のように従来装置と同様のノズ
ル幅方向に極めて均一なプロフィールとなった。パイプ
５を内蔵しないもので同様の測定を行ったところ、図４
のように、中央が高圧となる不均一な圧力プロフィール
であった。FIG. 1 is an explanatory view of an embodiment of the present invention.
FIG. 1A is a perspective view, and FIG. 1B is a sectional view of the secondary header 2. As shown in FIG.
Built in next header 2. When the wiping gas blowing pressure from the tip of the nozzle 3 of this device was measured off-line in the nozzle width direction, an extremely uniform profile in the nozzle width direction similar to that of the conventional device was obtained as shown in FIG. When the same measurement was performed without using the pipe 5, FIG.
The pressure profile was non-uniform with a high pressure at the center.
【０００８】本装置とシールボックスとを組合わせる
と、図６のようにシールボックス７を小さく設計するこ
とができ、周辺機器との干渉もなかった。またシールボ
ックス７とワイピング装置の連結管４は左右各１ケ所の
みであり、この部分のシール及びワイピング装置の上
下、左右の動きも容易であった。なお比較のため、図７
に従来例を示した。この例ではシールボックス７ａは相
当大きくなる（図７には比較のために、本発明のシール
ボックス７の大きさを点線で示している）。なお、図
６、図７において、８は浴上サポートロール、９はめっ
き鋼板、１０は金属浴を示す。When this apparatus is combined with a seal box, the seal box 7 can be designed small as shown in FIG. 6, and there is no interference with peripheral equipment. Further, the seal box 7 and the connecting pipe 4 of the wiping device were provided at only one location on each of the right and left sides, and the vertical and horizontal movement of the sealing and wiping device at this portion was easy. For comparison, FIG.
Shows a conventional example. In this example, the size of the seal box 7a is considerably large (for comparison, the size of the seal box 7 of the present invention is shown by a dotted line in FIG. 7). 6 and 7, reference numeral 8 denotes a support roll on the bath, 9 denotes a plated steel plate, and 10 denotes a metal bath.
【０００９】本発明装置により、０．９×１２００ｍｍ
の鋼板を速度１２０ｍ／ｍｉｎでめっき付着量片面４５
ｇ／ｍ2 として鉄・亜鉛めっき鋼板を製造したところ、
図５のような幅方向に均一なめっき付着量を得ることが
できた。According to the apparatus of the present invention, 0.9 × 1200 mm
Steel plate at a speed of 120 m / min.
g / m 2 of iron-galvanized steel sheet,
As shown in FIG. 5, a uniform amount of plating was obtained in the width direction.
【００１０】[0010]
【発明の効果】本発明は、ノズルが接続されている２次
ヘッダに、周面に複数の孔を有するパイプを内蔵し、か
つ、１次〜２次ヘッダ間を２本の連絡管により接続して
１次ヘッダからのワイピングガスをパイプに吹き込む構
造としたので、ワイピングガス圧力のノズル幅方向での
均一化機能を損なうことなく、スペースを取らないより
コンパクトな構造となった。特に、シールボックスを組
合わせる場合、シールボックスの寸法を小さく設計で
き、連結部のシール及びワイピングノズル装置の上下、
左右の動きも容易となった。更にシールボックスが小さ
く設計できるため、浴上サポートロールを低くすること
ができ、パスラインが安定するという効果を奏する。According to the present invention, the secondary header to which the nozzle is connected has a built-in pipe having a plurality of holes on the peripheral surface, and the primary to secondary headers are connected by two connecting pipes. Since the wiping gas from the primary header is blown into the pipe, the function of equalizing the wiping gas pressure in the nozzle width direction is not impaired, and a more compact structure without taking up space is obtained. In particular, when combining a seal box, the dimensions of the seal box can be designed to be small, and the seal of the connecting portion and the upper and lower parts of the wiping nozzle device can be designed.
Left and right movement is also easier. Further, since the seal box can be designed to be small, the support roll on the bath can be lowered and the pass line is stabilized.
【図１】本発明の一実施例の説明図を示し、（ａ）は全
体の斜視図、（ｂ）は２次ヘッダの断面図である。FIGS. 1A and 1B are explanatory views of one embodiment of the present invention, in which FIG. 1A is an overall perspective view, and FIG. 1B is a sectional view of a secondary header.
【図２】本発明の２次ヘッダに内蔵されるパイプの一実
施例の説明図である。FIG. 2 is an explanatory diagram of one embodiment of a pipe built in a secondary header of the present invention.
【図３】本発明のノズル先端における吐出圧力の幅方向
プロフィールを示す。FIG. 3 shows a width profile of a discharge pressure at a nozzle tip of the present invention.
【図４】本発明の２次ヘッダ内のパイプの効果を示す説
明図である。FIG. 4 is an explanatory diagram showing the effect of the pipe in the secondary header of the present invention.
【図５】本発明による鋼板の幅方向めっき付着量のプロ
フィールを示す。FIG. 5 shows a profile of a coating amount in a width direction of a steel sheet according to the present invention.
【図６】本発明とシールボックスとの組合せ例の説明図
である。FIG. 6 is an explanatory diagram of a combination example of the present invention and a seal box.
【図７】従来例とシールボックスとの組合せ例の説明図
である。FIG. 7 is an explanatory diagram of a combination example of a conventional example and a seal box.
【図８】従来例の説明図であり、（ａ）は全体の斜視
図、（ｂ）は２次ヘッダの断面図である。8A and 8B are explanatory views of a conventional example, in which FIG. 8A is an overall perspective view, and FIG. 8B is a sectional view of a secondary header.
１ １次ヘッダ ２，２ａ ２次ヘッダ ３ ノズル ４，４ａ 連絡管 ５ パイプ ６ ガス吹出し用孔 ７，７ａ シールボックス ８ 浴上サポートロール ９ めっき鋼板 １０ 金属浴 DESCRIPTION OF SYMBOLS 1 Primary header 2, 2a Secondary header 3 Nozzle 4, 4a Communication pipe 5 Pipe 6 Gas blowing hole 7, 7a Seal box 8 Support roll on bath 9 Plated steel plate 10 Metal bath
フロントページの続き (72)発明者 新井 信 千葉市川崎町１番地 川崎製鉄株式会社 千葉製鉄所内 (72)発明者 中川 健次 千葉市川崎町１番地 川崎製鉄株式会社 千葉製鉄所内 (56)参考文献 特開 平３−280489（ＪＰ，Ａ) 特開 平２−277754（ＪＰ，Ａ) 特開 昭62−133057（ＪＰ，Ａ) 実開 平１−87152（ＪＰ，Ｕ) 実開 昭56−143264（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) C23C 2/00 - 2/40Continuing from the front page (72) Inventor Shin Arai 1 Kawasaki-cho, Chiba-shi Kawasaki Steel Corporation Chiba Works (72) Inventor Kenji Nakagawa 1 Kawasaki-cho Chiba-shi Kawasaki Steel Corporation Chiba Works (56) References JP-A-3-280489 (JP, A) JP-A-2-277754 (JP, A) JP-A-62-133057 (JP, A) JP-A-1-87152 (JP, U) JP-A-56-143264 JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) C23C 2/00-2/40
Claims (1)
ヘッダと、該２次ヘッダへ複数の連結管を介して高圧ガ
スを供給する１次ヘッダを備えたガスワイピング装置に
おいて、 該連結管は該２次ヘッダの両側に各１本配設すると共
に、該２次ヘッダ内に該ノズルの幅方向ガス噴射量を均
一化する周面に複数の孔を穿孔したパイプを設け、該高
圧ガスを該パイプを介して該ノズルへ供給することを特
徴とするガスワイピング装置。1. A gas wiping apparatus comprising: a secondary header provided with a slit-shaped gas injection nozzle; and a primary header for supplying high-pressure gas to the secondary header via a plurality of connection pipes. One pipe is provided on each side of the secondary header, and a pipe having a plurality of holes perforated on a peripheral surface of the secondary header for equalizing the widthwise gas injection amount of the nozzle is provided in the secondary header, and the high-pressure gas is supplied to the nozzle. A gas wiping device for supplying to the nozzle via the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21085691A JP2815254B2 (en) | 1991-08-22 | 1991-08-22 | Gas wiping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21085691A JP2815254B2 (en) | 1991-08-22 | 1991-08-22 | Gas wiping equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0551717A JPH0551717A (en) | 1993-03-02 |
| JP2815254B2 true JP2815254B2 (en) | 1998-10-27 |
Family
ID=16596237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21085691A Expired - Fee Related JP2815254B2 (en) | 1991-08-22 | 1991-08-22 | Gas wiping equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2815254B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100775225B1 (en) * | 2006-06-05 | 2007-11-12 | 주식회사 포스코 | Air knife in continuous galvanizing line |
| JP6130720B2 (en) * | 2013-04-26 | 2017-05-17 | 日新製鋼株式会社 | Wiping gas equipment |
| JP6697418B2 (en) * | 2017-05-31 | 2020-05-20 | Ｊｆｅスチール株式会社 | High temperature gas wiping device |
-
1991
- 1991-08-22 JP JP21085691A patent/JP2815254B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0551717A (en) | 1993-03-02 |
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