JPS6058785B2 - Nozzle header of continuous melt plating equipment - Google Patents
Nozzle header of continuous melt plating equipmentInfo
- Publication number
- JPS6058785B2 JPS6058785B2 JP14464181A JP14464181A JPS6058785B2 JP S6058785 B2 JPS6058785 B2 JP S6058785B2 JP 14464181 A JP14464181 A JP 14464181A JP 14464181 A JP14464181 A JP 14464181A JP S6058785 B2 JPS6058785 B2 JP S6058785B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- injection nozzle
- inner cylinder
- nozzle
- gas injection
- 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
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Description
【発明の詳細な説明】
本発明は連続溶融メッキ装置のノズルヘッダに係り、
特に鋼帯の被メッキ面に吹拭ガスを吹きつけるガス噴射
ノズルを備え、吹拭ガスを供給する中空支持筒に一体に
構成されたノズルヘッダの改良に関するものてある。[Detailed Description of the Invention] The present invention relates to a nozzle header for a continuous hot-dip plating device,
In particular, the present invention relates to an improvement in a nozzle header that is equipped with a gas injection nozzle for spraying a wiping gas onto the surface of a steel strip to be plated, and that is integrally formed with a hollow support tube that supplies the wiping gas.
まず、第１図を用いて従来技術について説明する。 First, the prior art will be explained using FIG. 1.
第１図は本発明の出願人等が特開昭５５−１４８７５３
号で提案した連続溶融装置の概略構造説明図である。第
１図においては、ノズルヘッダ１は、ガス供給管を兼ね
た中空支持筒２の一端に連結してあり、ガス噴射ノズル
３へノズル３の幅方向に均一に加圧ガスを供給するため
、ノズルヘッダ１は末広がりの扇形状に形成し、ガスは
中空支持筒２から曲管４を介してノズルヘッダ１の中央
へ導びくようにしてある。しかし、第１図に示す構成で
は、曲管４が溶融メッキ液槽５の液面上近くに位置する
ため、液面上に浮遊するドロス（酸化物）を取り除く作
業を行う際に曲管４が邪魔になるという問題がある。ま
た、ノズル３の噴射口部の目詰りや傷付き等でガス噴射
ノズル３の交換が必要になつたときには、ガス噴射ノズ
ル３をノズルヘッダ１、中空支持筒２および曲管４と一
体とした状態でライン外へ取り出して行わなければなら
ない。そしてこの間はラインを停止しなければならない
。しかし、連続溶融メッキ装置においては、操業途中で
ラインを停止すると、製品となしえない部分がかなりの
量生じてしまう。すなわち、生産性を著しく阻害するこ
とになるので、突然的なノズル噴射口部の目詰りや傷付
き等によつては生産性を低下せしめないようにできるノ
ズルヘッダが望まれている。これに対処するものとして
、本発明の出願人等が実開昭５３−５８９２４号で提案
した回転式噴射ノズルがある。Figure 1 is a patent application published by the applicant of the present invention in Japanese Patent Application Laid-Open No. 55-148753.
1 is a schematic structural explanatory diagram of the continuous melting device proposed in the issue. In FIG. 1, a nozzle header 1 is connected to one end of a hollow support tube 2 that also serves as a gas supply pipe, and in order to uniformly supply pressurized gas to the gas injection nozzle 3 in the width direction of the nozzle 3, The nozzle header 1 is formed into a fan shape that widens toward the end, and gas is guided from the hollow support cylinder 2 to the center of the nozzle header 1 via a curved pipe 4. However, in the configuration shown in FIG. 1, since the bent pipe 4 is located near the liquid surface of the hot-dip plating liquid tank 5, the bent pipe 4 is The problem is that it gets in the way. In addition, when the gas injection nozzle 3 needs to be replaced due to clogging or damage to the injection port of the nozzle 3, the gas injection nozzle 3 can be integrated with the nozzle header 1, the hollow support tube 2, and the bent pipe 4. The ball must be taken out of the line in good condition. During this time, the line must be stopped. However, in continuous hot-dip plating equipment, if the line is stopped midway through operation, a considerable amount of parts will be left unfinished. That is, since this significantly impedes productivity, there is a need for a nozzle header that can prevent productivity from decreasing due to sudden clogging or damage to the nozzle injection port. To address this problem, there is a rotary injection nozzle proposed by the applicant of the present invention in Japanese Utility Model Application No. 53-58924.
これは、筒形の両端部を筒心を中心として回転するよう
に軸支した筒形ノズルヘツグの外周へ複数個のガス噴射
ノズルを放射状に設け、筒形ヘッダの回転と同時にガス
噴射ノズルを旋回し、複数個のガス噴射ノズルの中から
ストリップに向けて加圧気体を噴射する１個のガス噴射
ノズルを選択して用いるようにしたものである。しかし
、ノズルヘッダは単なる１個の筒形ノズルヘッダであり
、これを通過して加圧気体がガス噴射ノズルから流出す
る際に、ガス噴射ノズルの幅方向に渡つて加圧気体の状
態（流量、圧力）を均一化する施策が何ら設けてない。
したがつて、ストリップの幅方向に渡つて均一にメッキ
することが困難であるという問題があつた。本発明は上
記に鑑みてなされたもので、その目的とするところは、
ドロスの除去作業を容易に行うことができ、かつ、ガス
噴射ノズルに突発的な下具合が生じたときの生産性の低
下の減少をはかることができ、さらに、充分な性能を確
保することができる連続溶融メッキ装置のノズルヘッダ
を提供することにある。This is achieved by installing multiple gas injection nozzles radially around the outer periphery of a cylindrical nozzle head whose both ends are pivoted to rotate around the cylindrical center, and simultaneously rotating the gas injection nozzles. However, one gas injection nozzle for injecting pressurized gas toward the strip is selected from among the plurality of gas injection nozzles. However, the nozzle header is just a single cylindrical nozzle header, and when the pressurized gas passes through it and flows out from the gas injection nozzle, the state of the pressurized gas (flow rate There are no measures in place to equalize the pressure.
Therefore, there was a problem in that it was difficult to uniformly plate the strip across its width. The present invention has been made in view of the above, and its purpose is to:
It is possible to easily remove dross, reduce the drop in productivity when a sudden failure occurs in the gas injection nozzle, and furthermore ensure sufficient performance. An object of the present invention is to provide a nozzle header for a continuous hot-dip plating device that can be used.
本発明の特徴は、加圧吹拭ガスを供給する中空支持筒の
一端に側壁の軸方向に少なくとも２列に複数個のガス通
過穴を設けた内筒を連結し、この．内筒の外周に上記複
数個のガス通過穴をすべて覆うように両端を塞いだ上記
内筒と同心の外筒を設け、この外筒と上記内筒との間の
空間を上記それぞれの列の複数個のガス通過穴を含む空
間に仕切手段によつて分割し、この仕切手段で仕切られ
た−それぞれの空間の上記外筒の部分にそれぞれ板状部
材の被メッキ面に吹拭ガスを吹きつける上記内筒の軸方
向に伸びるガス噴射ノズルを設け、上記それぞれのガス
通過穴の部分には上記内筒から供給される上記吹拭ガス
の流量を調整する流量調整弁をそれぞれ設け、上記内筒
の回転と同時に上記噴射ノズルを旋回して上記複数個の
ガス噴射ノズルの中から上記板状部材の被メッキ面に上
記吹拭ガスを吹きつける１個のガス噴射ノズルを選択で
き、しかも、上記ガス噴射ノズルの長手方向に渡つて均
一に上記吹拭ガスを噴射できる構成とした点にある。A feature of the present invention is that an inner cylinder provided with a plurality of gas passage holes in at least two rows in the axial direction of the side wall is connected to one end of the hollow support cylinder for supplying pressurized wiping gas. An outer cylinder concentric with the inner cylinder is provided on the outer periphery of the inner cylinder with both ends closed so as to cover all of the plurality of gas passage holes, and the space between the outer cylinder and the inner cylinder is A space including a plurality of gas passage holes is divided by a partitioning means, and a blowing gas is blown onto the plated surface of the plate-shaped member into a portion of the outer cylinder of each space partitioned by the partitioning means. A gas injection nozzle extending in the axial direction of the inner cylinder is provided, and a flow rate adjustment valve for adjusting the flow rate of the wiping gas supplied from the inner cylinder is provided in each of the gas passage holes. The injection nozzle can be rotated simultaneously with the rotation of the cylinder to select one gas injection nozzle from among the plurality of gas injection nozzles that sprays the wiping gas onto the surface to be plated of the plate-shaped member; The present invention has a configuration in which the wiping gas can be uniformly injected over the longitudinal direction of the gas injection nozzle.
以下本発明を第２図、第３図に示した実施例をノ用いて
詳細に説明する。The present invention will be explained in detail below using the embodiments shown in FIGS. 2 and 3.
第２図は本発明のノズルヘッダの一実施例を示す平面図
、第３図は第２図のＡ−Ａ線断面図て、例えば鋼帯など
ストリップに対して両側から吹拭ガスを吹きつけること
ができるように左右一対か・らなるものが示してある。FIG. 2 is a plan view showing an embodiment of the nozzle header of the present invention, and FIG. 3 is a cross-sectional view taken along the line A-A in FIG. It is shown as a pair of left and right so that you can
第２図において、５は溶融メッキ液槽、６はガス噴射ノ
ズル３へ加圧吹拭ガスを供給するノズルヘッダで、吹拭
ガス供給管を兼ねる中空支持筒２の一端に連結してある
。そして、図示矢印方向より加圧吹拭ガスが供給さ″れ
、中空支持筒２を通過してノズルヘッダ６へ流入し、ガ
ス噴射ノズル３へと供給される。ところで、ノズルヘッ
ダ６は第３図に示すように構成してある。In FIG. 2, 5 is a hot-dip plating liquid tank, and 6 is a nozzle header for supplying pressurized wiping gas to the gas injection nozzle 3, which is connected to one end of the hollow support tube 2 which also serves as a wiping gas supply pipe. Then, pressurized wiping gas is supplied from the direction of the arrow shown in the figure, passes through the hollow support cylinder 2, flows into the nozzle header 6, and is supplied to the gas injection nozzle 3.By the way, the nozzle header 6 It is configured as shown in the figure.
すなわち、７は第２図の中空支持筒２の一端に連結した
有底内筒で、内筒７の側壁には軸方向に２列にそれぞれ
複数個のガス通過穴８が設けてある。９は内筒７の外周
にすべてのガス通過穴８を覆うように一体に設けた内筒
７と同心の両端を塞いだ外筒で、内筒７と外筒９との間
の空間は、上記それぞれの列の複数個のガス通過穴８を
含む２つの空間に仕切板１０で分割してあり、それぞれ
の空間の外筒９の部分にそれぞれ相対するように軸方向
に伸びるガス噴射ノズル３が設けてある。That is, 7 is a bottomed inner cylinder connected to one end of the hollow support cylinder 2 shown in FIG. 2, and a plurality of gas passage holes 8 are provided in two rows in the axial direction on the side wall of the inner cylinder 7. Reference numeral 9 denotes an outer cylinder that is integrally provided on the outer periphery of the inner cylinder 7 so as to cover all the gas passage holes 8, and has both ends concentrically closed with the inner cylinder 7, and the space between the inner cylinder 7 and the outer cylinder 9 is as follows: The gas injection nozzle 3 is divided by a partition plate 10 into two spaces each including a plurality of gas passage holes 8 in each row, and extends in the axial direction so as to face the portion of the outer cylinder 9 in each space. is provided.
また、ぞれぞれのガス通過穴８の部分には、内筒７内か
ら供給される吹拭ガスの流量を調整する流量調整弁１１
が設けてある。なお、稼動中でない側の流量調整弁１１
は閉として、その側のガス噴射ノズル３からは吹拭ガス
が噴出しないようにして用いる。第３図において、内筒
７内に供給され、ガス通過穴８を通過した加圧吹拭ガス
は、図示矢印で示すように流れ、ガス噴射ノズル３より
噴出し、ストリップ１２の被メッキ面の過剰鍍金被膜を
吹拭する。In addition, a flow rate adjustment valve 11 is provided at each gas passage hole 8 to adjust the flow rate of the wiping gas supplied from inside the inner cylinder 7.
is provided. Note that the flow rate adjustment valve 11 on the side that is not in operation
is closed so that no wiping gas is ejected from the gas injection nozzle 3 on that side. In FIG. 3, the pressurized wiping gas supplied into the inner cylinder 7 and passed through the gas passage hole 8 flows as shown by the arrow in the figure, is ejected from the gas injection nozzle 3, and is applied to the surface of the strip 12 to be plated. Blow off excess plating film.
ところで、吹拭ガスは内筒７と外筒８とで作られる空間
１３を通過する間に幅方向にガスの流れが広げられ、ガ
ス噴射ノズル３の長手方向に対して整流される。しかし
、この整流作用が充分でなく、ガス噴射ノズル３の全域
におけるガス流が不均一の場合は、各ガス通過穴８の部
分に設けた流量調整弁１１を適宜調整して均一化をはか
る。稼動中のガス噴射ノズル３が突発的に噴射口部が目
詰りしたり、または、傷付等を生じガス噴射ノズル３を
交換する必要が生じた場合は、ノズルヘッダ６を連結し
てある中空支持筒２を１８０ル回転させて、反射側のガ
ス噴射ノズル３を使用するようにして吹拭を再関する。Incidentally, while the wiping gas passes through the space 13 formed by the inner cylinder 7 and the outer cylinder 8, the flow of the gas is expanded in the width direction and rectified in the longitudinal direction of the gas injection nozzle 3. However, if this rectifying effect is not sufficient and the gas flow is non-uniform throughout the gas injection nozzle 3, the flow rate regulating valve 11 provided at each gas passage hole 8 is appropriately adjusted to achieve uniformity. If the gas injection nozzle 3 in operation suddenly becomes clogged or damaged, and it becomes necessary to replace the gas injection nozzle 3, the nozzle header 6 should be replaced. The support tube 2 is rotated 180 degrees and the gas injection nozzle 3 on the reflection side is used again for wiping.
このときは交換すべきガス噴射ノズル３側へは吹拭ガス
を流入させないで、吹拭を行うガス噴射ノズル３側への
み吹拭ガスを流入させるように流量調整弁１１を調整す
る。上記した本発明の実施例によれば、従来のように曲
管４（第１図参照）がないので、液面上近くの空間が広
められ、ドロスの除去作業が容易になり、作業性の改善
をはかることができる。また、２個のガス噴射ノズル３
が設けてあり、それぞれを独立に使用できるようにして
あるから、使用中のガス噴射ノズル３に突発的不具合を
生じたときには、中空支持筒２を１８０不回転させて他
のガス噴射ノズル３を使用するように切り替えればよく
、生産性低下を従来とくらべて著しく減少することがで
きる。さらに、ガス噴射ノズル３の全域について流れを
均一にできるから、第１図と同様の性能を確保すること
がてきる。なお、上記した実施例においては、２個のガ
ス噴射ノズル３を設けてあるが、単にドロスの除去作業
を容易にするためならば１個としてもよく、また、複数
回のガス噴射ノズル３の不具合に対応できるように２個
以上とするようにしてもよい。At this time, the flow rate regulating valve 11 is adjusted so that the wiping gas is not allowed to flow into the gas injection nozzle 3 side to be replaced, but is allowed to flow only into the gas injection nozzle 3 side where wiping is to be performed. According to the embodiment of the present invention described above, since there is no curved pipe 4 (see Fig. 1) as in the conventional case, the space near the liquid surface is expanded, the dross removal work is facilitated, and the workability is improved. Improvements can be made. In addition, two gas injection nozzles 3
are provided so that they can be used independently, so if a sudden problem occurs with the gas injection nozzle 3 in use, the hollow support cylinder 2 is rotated 180 degrees and the other gas injection nozzles 3 can be used. All you have to do is switch to using it, and the drop in productivity can be significantly reduced compared to the conventional method. Furthermore, since the flow can be made uniform over the entire area of the gas injection nozzle 3, performance similar to that shown in FIG. 1 can be ensured. In the above-described embodiment, two gas injection nozzles 3 are provided, but it may be provided with one if the purpose is simply to facilitate the dross removal work. The number may be two or more in order to deal with any malfunctions.
以上説明したように、本発明によれば、ドロスの除去作
業を容易に行うことができ、かつ、ガス噴射ノズルに突
発的な不具合を生じたときの生産性の低下の減少をはか
ることができ、さらに、充分な性能を確保することがで
きるという効果がある。As explained above, according to the present invention, it is possible to easily perform the dross removal work, and to reduce the decrease in productivity when a sudden failure occurs in the gas injection nozzle. Furthermore, there is an effect that sufficient performance can be ensured.
第１図は従来のノズルヘッダの平面図、第２図は本発明
の連続溶融メッキ装置のノズルヘッダの一実施例を示す
平面図、第３図は第２図のＡ−Ａ・線断面図てある。
２・・・・・・中空支持筒、３・・・・・・ガ又噴射ノ
ズル、６・・・・ノズルヘツグ、７・・・・・・内筒、
８・・・・・・ガス通過穴、９・・・・・・外筒、１０
・・・・・・仕切板、１１・・・・・・流量調整弁、１
２・・・・・ストリップ。Fig. 1 is a plan view of a conventional nozzle header, Fig. 2 is a plan view showing an embodiment of the nozzle header of the continuous hot-dip plating apparatus of the present invention, and Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2. There is. 2...Hollow support cylinder, 3...Gamata injection nozzle, 6...Nozzle head, 7...Inner cylinder,
8...Gas passage hole, 9...Outer cylinder, 10
...Partition plate, 11...Flow rate adjustment valve, 1
2...Strip.
Claims (1)
れ、板状部材の被メッキ面に前記吹拭ガスを吹きつける
前記中空支持筒の軸方向に伸びるガス噴射ノズルを備え
た連続溶融メッキ装置のノズルヘッダにおいて、前記中
空支持筒の一端に連結され側壁の軸方向に少なくとも２
列に複数個のガス通過穴を設けた内筒と、該内筒の外周
に前記複数個のガス通過穴をすべて覆うように一体に設
けた両端を塞いだ前記内筒と同心の外筒と、該外筒と前
記内筒との間の空間を前記それぞれの列の複数個のガス
通過穴を含む複数個の空間に分割する仕切手段と、該仕
切手段で仕切られたそれぞれの空間の前記外筒の部分に
それぞれ設けた前記ガス噴射ノズルと、前記それぞれの
ガス通過穴の部分に設けた前記内筒から供給される前記
吹拭ガスの流量を調整する流量調整弁とよりなり、前記
中空支持筒の回転と同時に前記ガス噴射ノズルを旋回し
て前記複数個の噴射ノズルの中から前記板状部材の被メ
ッキ面に前記吹拭ガスを吹きつける１個のガス噴射ノズ
ルを選択できる構成としてえることを特徴とする連続溶
融メッキ装置のノズルヘッダ。1. Continuous melting comprising a gas injection nozzle connected to one end of a hollow support tube that supplies pressurized wiping gas and extending in the axial direction of the hollow support tube that sprays the wiping gas onto the plated surface of the plate member. In the nozzle header of the plating apparatus, at least two holes are connected to one end of the hollow support cylinder in the axial direction of the side wall.
an inner cylinder provided with a plurality of gas passage holes in a row; and an outer cylinder concentric with the inner cylinder, which is integrally provided on the outer periphery of the inner cylinder so as to cover all of the plurality of gas passage holes, and which is closed at both ends. , partitioning means for dividing the space between the outer cylinder and the inner cylinder into a plurality of spaces each including a plurality of gas passage holes in each of the rows; The gas injection nozzle provided in each of the outer cylinder portions, and a flow rate adjustment valve that adjusts the flow rate of the wiping gas supplied from the inner cylinder provided in each of the gas passage holes, and the hollow The gas injection nozzle may be rotated simultaneously with the rotation of the support cylinder to select one gas injection nozzle from among the plurality of injection nozzles that sprays the wiping gas onto the surface to be plated of the plate-like member. A nozzle header for continuous hot-dip plating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14464181A JPS6058785B2 (en) | 1981-09-16 | 1981-09-16 | Nozzle header of continuous melt plating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14464181A JPS6058785B2 (en) | 1981-09-16 | 1981-09-16 | Nozzle header of continuous melt plating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5848656A JPS5848656A (en) | 1983-03-22 |
| JPS6058785B2 true JPS6058785B2 (en) | 1985-12-21 |
Family
ID=15366781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14464181A Expired JPS6058785B2 (en) | 1981-09-16 | 1981-09-16 | Nozzle header of continuous melt plating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6058785B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719129A (en) * | 1987-02-09 | 1988-01-12 | Armco Inc. | Multiple nozzle jet finishing |
| DE19729232C1 (en) * | 1997-07-09 | 1999-04-08 | Duma Masch Anlagenbau | Device for equalizing the gas pressure distribution through the outlet opening of a flat jet nozzle |
| KR100843923B1 (en) * | 2006-12-08 | 2008-07-03 | 주식회사 포스코 | Gas wiping apparatus having multiple nozzles |
| JP4980114B2 (en) * | 2007-04-03 | 2012-07-18 | 新日鉄エンジニアリング株式会社 | Gas nozzle for controlling the adhesion amount of molten metal plating |
| DE102014106135A1 (en) * | 2014-04-30 | 2015-11-05 | Thyssenkrupp Ag | Nozzle device and method for treating a flat steel product |
-
1981
- 1981-09-16 JP JP14464181A patent/JPS6058785B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5848656A (en) | 1983-03-22 |
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