JPH0551717A - Gas wiping device - Google Patents
Gas wiping deviceInfo
- Publication number
- JPH0551717A JPH0551717A JP21085691A JP21085691A JPH0551717A JP H0551717 A JPH0551717 A JP H0551717A JP 21085691 A JP21085691 A JP 21085691A JP 21085691 A JP21085691 A JP 21085691A JP H0551717 A JPH0551717 A JP H0551717A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- gas
- pipe
- header
- 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.)
- Granted
Links
Abstract
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 device 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 device for controlling the coating amount of continuous molten 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 when blown from one end, the wiping pressure becomes high, and the gas pressure becomes nonuniform in the nozzle width direction. Therefore, for the purpose of equalizing the wiping gas pressure in the width direction, as shown in the drawing, the primary and secondary headers are connected by about eight connecting pipes 4a.
【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 the 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 device as described above, the space from the primary header to the nozzle 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., the wiping part is surrounded by a seal box for the purpose of reducing top dross, preventing plating surface defects, and preventing noise.
Technical means for keeping the interior in a non-oxidizing atmosphere are described. In the conventional wiping devices such as these technical means, when the secondary header including the primary header and the nozzle are to be housed in the seal box, the seal box has a considerably large size, and it is difficult to attach and detach and handle it. Interfere with peripherals. Further, if only the secondary header and the nozzle are to be housed in the box, the box seal and the wiping device up and down in the branch pipe between the primary and secondary headers,
There is a problem that it becomes difficult to move left and right. It is an object of the present invention to provide a gas wiping device that solves the above 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 solves the above-mentioned problems by providing a secondary header provided with a slit-shaped gas injection nozzle and a high pressure gas to the secondary header via a plurality of connecting pipes. It was applied to a gas wiping device equipped with a supplying primary header and adopted the following technical means. That is, one connecting pipe is provided on each side of the secondary header, and a pipe with a plurality of holes is provided in the secondary header on the peripheral surface for equalizing the gas injection amount in the width direction of the nozzle. The gas wiping device is characterized in that the gas is supplied to the nozzle through 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 pipe having a plurality of holes formed in its peripheral surface is built in the secondary header, and the primary and secondary headers are connected to two connecting pipes. Since the wiping gas from is blown into the pipe and the wiping gas is supplied to the nozzle through the pipe, the wiping gas pressure does not lose its uniformizing function in the nozzle width direction.
The wiping device can be made more compact than the conventional one, which does not take up space. When this device is combined with a seal box, the size of the box can be reduced, and since the two connecting pipe portions between the primary and secondary headers are connected to the box, a sealing and wiping device for the connecting portion. Up, down, left and right movement has become 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。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of a position embodiment of the present invention.
1A is a perspective view, and FIG. 1B is a sectional view of the secondary header 2. As shown in FIG. 2, a pipe 5 having a diameter of 6 mm, four rows on the circumference, and holes 6 having a pitch of 25 mm is used.
Built in the 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 the conventional device was obtained as shown in FIG. When the same measurement was carried out with the pipe 5 not included, the result shown in FIG.
As shown, the pressure profile was non-uniform with the high pressure in 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。By combining this device and the 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 are only provided at one place each on the left and right sides, and the up and down and left and right movements of the seal and the wiping device at this portion were easy. For comparison, FIG.
A conventional example is shown in. In this example, the seal box 7a is considerably large (in FIG. 7, the size of the seal box 7 of the present invention is shown by a dotted line for comparison). 6 and 7, 8 is a bath support roll, 9 is a plated steel plate, and 10 is 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。With the device of the present invention, 0.9 × 1200 mm
No. of steel plates at a speed of 120 m / min
When iron / galvanized steel sheet was manufactured with g / m 2 ,
It was possible to obtain a uniform coating amount in the width direction as shown in FIG.
【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。Industrial Applicability According to the present invention, a pipe having a plurality of holes on its peripheral surface is built in a secondary header to which a nozzle is connected, and the primary and secondary headers are connected by two connecting pipes. Since the wiping gas from the primary header is blown into the pipe, a more compact structure that does not occupy a space is obtained without impairing the function of equalizing the wiping gas pressure in the nozzle width direction. Especially when combining the seal box, the size of the seal box can be designed to be small, and the seal of the connecting portion and the upper and lower sides of the wiping nozzle device can be designed.
Left and right movement is also easier. Further, since the seal box can be designed small, the bath support roll can be lowered and the pass line can be 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。FIG. 1 is an explanatory view of an embodiment of the present invention, in which (a) is an overall perspective view and (b) 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 an embodiment of a pipe incorporated in the 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 widthwise profile of discharge pressure at the 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 an effect of a 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 the coating amount in the width direction of the 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, 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 1 Primary Header 2, 2a Secondary Header 3 Nozzle 4, 4a Communication Pipe 5 Pipe 6 Gas Blowing Hole 7, 7a Seal Box 8 Bath Support Roll 9 Plated Steel Plate 10 Metal Bath
───────────────────────────────────────────────────── フロントページの続き (72)発明者 近藤 道生 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 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Kondo 1 Kawasaki-cho, Chiba City Inside the Chiba Steel Works (72) Inventor Shin Arai 1-Kawasaki Town, Chiba City Inside the Chiba Steel Works (72) 72) Inventor Kenji Nakagawa 1 Kawasaki-cho, Chiba City Kawasaki Steel Corporation Chiba Steel Works
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 device 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 connecting pipes, wherein the connecting pipes are One pipe is provided on each side of the secondary header, and a pipe having a plurality of holes perforated is provided in the secondary header on the peripheral surface for equalizing the gas injection amount in the width direction of the nozzle. A gas wiping device, characterized in that the gas is supplied to the nozzle through 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 true JPH0551717A (en) | 1993-03-02 |
| JP2815254B2 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) |
Cited By (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 |
| JP2014214354A (en) * | 2013-04-26 | 2014-11-17 | 日新製鋼株式会社 | Wiping gas apparatus |
| JP2018204055A (en) * | 2017-05-31 | 2018-12-27 | 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
Cited By (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 |
| JP2014214354A (en) * | 2013-04-26 | 2014-11-17 | 日新製鋼株式会社 | Wiping gas apparatus |
| JP2018204055A (en) * | 2017-05-31 | 2018-12-27 | Ｊｆｅスチール株式会社 | High-temperature gas wiping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2815254B2 (en) | 1998-10-27 |
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