JPH0526862B2 - - Google Patents
Info
- Publication number
- JPH0526862B2 JPH0526862B2 JP60048614A JP4861485A JPH0526862B2 JP H0526862 B2 JPH0526862 B2 JP H0526862B2 JP 60048614 A JP60048614 A JP 60048614A JP 4861485 A JP4861485 A JP 4861485A JP H0526862 B2 JPH0526862 B2 JP H0526862B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- tank
- replenishment
- bath
- nozzle
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 15
- 238000007747 plating Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 11
- 230000005499 meniscus Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000009736 wetting Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010291 electrical method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は溶融金属槽にめつき用ノズルを設け、
該ノズルに金属帯を極めて近接させながら走行さ
せて、金属帯とノズル開口部のめつき浴との濡れ
付着力によつて溶融金属を吸い出すことにより金
属帯をめつきするメニスカスコーテイング方法に
おいて、コーテイング量を常に均一にするため、
溶融金属槽の浴面を一定に制御する方法に関す
る。[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a plating nozzle in a molten metal tank,
In the meniscus coating method, the metal band is plated by running the metal band in close proximity to the nozzle and sucking out molten metal by the wet adhesion between the metal band and the plating bath at the nozzle opening. To keep the amount even,
This invention relates to a method for controlling the bath surface of a molten metal tank to a constant level.
（従来技術）
金属帯を他の金属でコーテイングする方法とし
て、本発明者らは溶融金属槽にめつき用ノズルを
設け、該ノズルに金属帯を極めて近接させながら
走行させて、金属帯とノズル開口部のめつき浴と
の濡れ付着力によつて溶融金属を吸い出して金属
帯をめつきするメニスカスコーテイング方法を開
発したのであるが、この方法で均一なコーテイン
グを行なうにはコーテイング中溶融金属槽の浴面
がノズル位置より低下せず、かつ一定になるよう
にする必要がある。(Prior Art) As a method of coating a metal strip with another metal, the present inventors installed a plating nozzle in a molten metal tank, and caused the metal strip to travel in close proximity to the nozzle, so that the metal strip and the nozzle were coated. We developed a meniscus coating method in which the molten metal is sucked out by the wet adhesion force with the plating bath at the opening, and the metal strip is plated. It is necessary to ensure that the bath level does not fall below the nozzle position and remains constant.
浴面を一定に保つ方法としては、対象が樹脂溶
液ではあるが、米国特許第3201275号公報に開示
されている。この方法は樹脂溶液を毛細管現象に
より吸い上げて、コーテイングヘツドにメニスカ
スを形成し、そのメニスカスによつてテープをコ
ーテイングする際、第２図に示すように、コーテ
イングヘツド１と樹脂溶液２の貯蔵槽３との下部
をポンプ４の設けられた補給管５で、またコーテ
イングヘツド１の中心部と貯蔵槽３の上部とをオ
ーバーフロー管６で接続して、ポンプ４により貯
蔵槽３から樹脂溶液２をコーテイングヘツド１に
送り、コーテイングヘツド１内に過剰に送られた
樹脂溶液２をオーバーフロー管６で貯蔵槽３に返
し、コーテイングヘツド１内の液面を一定に保つ
方法であるので、構造は簡単で、液面を精度よく
一定に保つことができる。なお第２図において７
はコーテイングヘツド１に設けられたノズル部１
ａに挿入された毛細管で、基部は樹脂溶液２に浸
漬され、先端部はコーテイングヘツド１より突出
し、その先端に毛細管現象により吸い上げた樹脂
溶液２のメニスカスを形成する。また８はテー
プ、９はテープ８を毛細管７の先端に近接させる
ロール、１０は貯蔵槽３の樹脂溶液貯蔵量が少な
くなつたとき樹脂溶液２を注入する注入管であ
る。 A method for keeping the bath surface constant is disclosed in US Pat. No. 3,201,275, although the object is a resin solution. In this method, the resin solution is sucked up by capillary action to form a meniscus on the coating head, and when the tape is coated by the meniscus, the coating head 1 and the storage tank 3 for the resin solution 2 are drawn up as shown in FIG. The lower part of the coating head 1 is connected with a supply pipe 5 provided with a pump 4, and the center of the coating head 1 and the upper part of the storage tank 3 are connected with an overflow pipe 6, and the pump 4 coats the resin solution 2 from the storage tank 3. The resin solution 2 sent to the coating head 1 in excess is returned to the storage tank 3 through the overflow pipe 6, and the liquid level in the coating head 1 is kept constant, so the structure is simple. The liquid level can be kept constant with high precision. In Figure 2, 7
is the nozzle part 1 provided in the coating head 1
A capillary tube is inserted into the capillary tube a, the base of which is immersed in the resin solution 2, and the tip of the capillary tube protruding from the coating head 1, forming a meniscus of the resin solution 2 sucked up by capillary action at the tip. Further, 8 is a tape, 9 is a roll that brings the tape 8 close to the tip of the capillary tube 7, and 10 is an injection tube for injecting the resin solution 2 when the amount of resin solution stored in the storage tank 3 becomes low.
（発明が解決しようとする問題点）
従つてこの方法を溶融金属に適用すれば、浴面
を一定に保つことができるのであるが、溶融金属
に適用するには次のような問題があつた。(Problems to be Solved by the Invention) Therefore, if this method is applied to molten metal, the bath level can be kept constant, but the following problems arise when applied to molten metal. .
(1) 溶融金属を循環させるポンプ４、補給管５お
よびオーバーフロー管６などは循環途中で溶融
金属の温度が低下しないよう加熱保温する必要
があるため、加熱保温設備を設けなければなら
ず、付帯設備が複雑大型化し、維持費も多くか
かる。(1) The pump 4, supply pipe 5, overflow pipe 6, etc. that circulate molten metal must be heated and kept warm so that the temperature of the molten metal does not drop during circulation, so heating and insulation equipment must be installed, and additional Equipment becomes complex and large, and maintenance costs are high.
(2) メニスカスコーテイング法による溶融めつき
による最大の利点は高純度のめつき被膜を形成
できる点にあるが、浴を高純度に保つにはポン
プ４、補給管５、オーバーフロー管６などの材
質をセラミツク系のものにする必要がある。こ
のため設備費が材質的に非常に高価になる。(2) The greatest advantage of melt plating using the meniscus coating method is that it is possible to form a high-purity plating film. It is necessary to make it ceramic-based. For this reason, equipment costs are extremely high in terms of materials.
（問題点を解決するための手段）
本発明はこのように米国特許第3201275号公報
に開示された浴面制御方法を溶融金属に適用する
には種々設備的に問題があつた点に鑑み、設備的
に問題のない浴面制御方法を提供するものであ
る。(Means for Solving the Problems) The present invention has been developed in view of the fact that there were various equipment problems when applying the bath surface control method disclosed in U.S. Pat. No. 3,201,275 to molten metal. The present invention provides a bath surface control method that does not cause problems in terms of equipment.
本発明においても溶融金属槽の浴面を制御する
には米国特許第3101275号公報に記載されている
方法のように溶融金属を補給するのであるが、そ
の補給は溶融金属槽に対して溶融金属を補給する
補給槽を配置して、該補給槽の補給口に補給量調
整装置を設け、また溶融金属槽には浴面検出装置
を設け、該浴面検出装置により補給量調整装置を
作動させて自動的に行うようにしたものである。
すなわち本発明は溶融金属槽の近傍に溶融金属の
補給槽を配置して、該補給槽の補給口に補給量調
整装置を、また溶融金属槽に浴面検出装置を設け
て、溶融金属槽の浴面が設定位置より低下したと
き、浴面検出装置が補給量調整装置に対して補給
量の増大または補給開始を行なわせて、溶融金属
槽の浴面を常に設定位置に保つようにしたのであ
る。 In the present invention as well, in order to control the bath surface of the molten metal tank, molten metal is replenished as in the method described in U.S. Pat. No. 3,101,275. A replenishment tank for replenishing water is arranged, and a replenishment amount adjustment device is provided at the replenishment port of the replenishment tank, and a bath surface detection device is provided in the molten metal tank, and the replenishment amount adjustment device is operated by the bath surface detection device. This is done automatically.
That is, in the present invention, a molten metal replenishment tank is disposed near the molten metal tank, a replenishment amount adjustment device is provided at the replenishment port of the molten metal tank, and a bath level detection device is provided in the molten metal tank. When the bath level falls below the set position, the bath level detection device causes the replenishment amount adjustment device to increase the replenishment amount or start replenishment, so that the bath surface of the molten metal tank is always maintained at the set position. be.
本発明において、補給量調整装置としては、溶
融金属の補給槽の補給口に栓やバルブを設けて、
その栓やバルブを電気的または機械的方法で開閉
する機構のものでもよい。また浴面検出装置とし
ては、フロート式の液面計あるいは渦電流や超音
波を利用した液面計を設置して、浴面が下がつた
とき電気的または機械的方法により補給量調整装
置を作動させるようにしたものでよい。 In the present invention, the replenishment amount adjusting device includes a plug or a valve provided at the replenishment port of the molten metal replenishment tank.
It may be of a mechanism that opens and closes the stopper or valve electrically or mechanically. In addition, as a bath level detection device, a float-type liquid level gauge or a liquid level gauge that uses eddy current or ultrasonic waves is installed, and when the bath level drops, a replenishment amount adjustment device is activated by an electrical or mechanical method. It may be something that is activated.
以下実施例により本発明を説明する。 The present invention will be explained below with reference to Examples.
（実施例）
第１図は本発明の実施方法の１例を示したもの
で、対象となる溶融めつき方法は例えば溶融金属
槽１１の側部にめつき用ノズル１２を設けて、該
ノズル１２の開口部１３をめつき浴にするととも
に、この開口部１３の先端に鋼帯１４をデフレク
ターロール１５で近接させながら上方に走行させ
る方法である。この方法によれば開口部１３に溶
融金属槽１１内に入れられている溶融金属１６の
メニスカスが形成されるので、鋼帯１４がこのメ
ニスカスと接触すると溶融金属１６は鋼帯１４と
溶融金属との濡れ付着力により吸い出され、鋼帯
１４はコーテイングされてめつきされる。このと
きめつき用ノズル１２にはこのめつき用ノズル１
２から溶融金属槽１１内の浴面に至る高さの溶融
金属１６のヘツド圧がかかるが、このヘツド圧は
溶融金属１６の吸い出しを補助するためのもの
で、鋼帯１４の走行速度に応じて10〜30mmに設定
する。なおコーテイングの際には溶融金属槽１１
やデフレクターロール１５をボツクス１７で覆つ
て、溶融金属１６が酸化されないよう内部に窒素
ガスなどの非酸化性ガスを充たしておくのが一般
的である。(Example) FIG. 1 shows one example of the method of carrying out the present invention, and the target molten plating method is, for example, in which a plating nozzle 12 is provided on the side of a molten metal tank 11, and the nozzle is In this method, the opening 13 of 12 is used as a plating bath, and the steel strip 14 is brought close to the tip of the opening 13 by means of a deflector roll 15 while running upward. According to this method, a meniscus of the molten metal 16 contained in the molten metal tank 11 is formed in the opening 13, so that when the steel strip 14 comes into contact with this meniscus, the molten metal 16 is mixed with the steel strip 14. The steel strip 14 is coated and plated. At this time, this plating nozzle 1 is used as the plating nozzle 12.
2 to the bath surface in the molten metal tank 11. This head pressure is to assist in sucking out the molten metal 16, and varies depending on the running speed of the steel strip 14. and set it to 10-30mm. In addition, during coating, the molten metal tank 11
Generally, the deflector roll 15 is covered with a box 17 and the inside is filled with a non-oxidizing gas such as nitrogen gas so that the molten metal 16 is not oxidized.
本発明ではこのような溶融めつき方法におい
て、溶融金属槽１１の上方に溶融金属１６の補給
槽１８を配置して、その下部に設けられたノズル
状の補給口１９に補給管２０を接続し、内部の溶
融金属１６が溶融金属槽１１に流下するようにす
る。補給口１９には栓２１を配置して、この栓２
１を溶融金属槽１１に固定したエアシリンダー２
２で上下動させる。 In the present invention, in such a melt welding method, a replenishment tank 18 for molten metal 16 is arranged above the molten metal tank 11, and a replenishment pipe 20 is connected to a nozzle-shaped replenishment port 19 provided at the bottom of the replenishment tank 18. , so that the molten metal 16 inside flows down into the molten metal tank 11. A plug 21 is arranged in the supply port 19, and this plug 2
Air cylinder 2 fixed to molten metal tank 11
Press 2 to move up and down.
一方溶融金属槽１１の浴面には上方に伸張した
棒２３を取付けたセラミツク製のフロート２４を
浮かせておいて、棒２３の先端にコア２５を取付
け、コア２５の上下位置を検出できるよう差動ト
ランス２６を固定しておく。差動トランス２６よ
りの信号は、エアシリンダー２２のエア管２７に
設けられた作動弁２８に流れるようにしておく。 On the other hand, a ceramic float 24 to which a rod 23 extending upward is attached is floated on the bath surface of the molten metal tank 11. A core 25 is attached to the tip of the rod 23, and a difference is made so that the vertical position of the core 25 can be detected. The dynamic transformer 26 is fixed. A signal from the differential transformer 26 is made to flow to an operating valve 28 provided in an air pipe 27 of the air cylinder 22.
（作用）
以上のように制御機構を構成しておくと溶融金
属槽１１の浴面が設定位置より低下して、フロー
ト２４が下がつた場合、差動トランス２６の信号
により作動弁２８が作動して、エアシリンダー２
２を上昇させるので、栓２１が持上げられ、補給
槽１８内の溶融金属が補給管２０より溶融金属槽
１１に流れ、補給される。(Function) With the control mechanism configured as described above, when the bath level of the molten metal tank 11 drops below the set position and the float 24 drops, the operating valve 28 is activated by the signal from the differential transformer 26. and air cylinder 2
2 is raised, the plug 21 is lifted, and the molten metal in the replenishment tank 18 flows into the molten metal tank 11 through the replenishment pipe 20 and is replenished.
溶融金属槽１１に補給槽１８より溶融金属１６
が補給されると、フロート２４は上昇するので、
差動トランス２６よりの信号は停止し、作動弁２
８が切替わつて栓２１が下がり、補給槽１８を閉
鎖する。本実施例ではこのような溶融金属１６の
補給および停止を繰返しながら溶融金属槽１１の
浴面を設定位置に保つのである。この方法によれ
ば浴面を±0.1mm以内の高精度で制御することが
できる。 Molten metal 16 is added to the molten metal tank 11 from the supply tank 18
When is replenished, the float 24 rises, so
The signal from the differential transformer 26 is stopped, and the operating valve 2
8 is switched, the stopper 21 is lowered, and the supply tank 18 is closed. In this embodiment, the bath surface of the molten metal tank 11 is maintained at a set position by repeating such replenishment and stopping of the molten metal 16. According to this method, the bath surface can be controlled with high accuracy within ±0.1 mm.
（効果）
以上のごとく、本発明によれば複雑で高価な設
備を設けることなく溶融金属槽に溶融金属を高精
度で自動的に補給することができる。従つて浴面
は常に一定に保つことができる。また補給はポン
プなどを使用せず、溶融金属の自重により必要な
量だけ補給するのであるから、故障が少ない。(Effects) As described above, according to the present invention, molten metal can be automatically replenished into a molten metal tank with high precision without providing complicated and expensive equipment. Therefore, the bath surface can always be kept constant. In addition, no pumps are used for replenishment, and only the required amount is replenished using the weight of the molten metal, so there are fewer failures.
第１図は本発明の実施方法の１例を示す説明図
であり、第２図は溶融金属の浴面制御に適用可能
な樹脂溶液の液面制御方法の説明図である。
１１……溶融金属槽、１２……めつき用ノズ
ル、１３……開口部、１４……鋼帯、１５……デ
フレクターロール、１６……溶融金属、１７……
ボツクス、１８……補給槽、１９……補給口、２
０……補給管、２１……栓、２２……エアシリン
ダー、２３……棒、２４……フロート、２５……
コア、２６……差動トランス、２７……エア管、
２８……作動弁。
FIG. 1 is an explanatory diagram showing one example of a method of implementing the present invention, and FIG. 2 is an explanatory diagram of a method for controlling the liquid level of a resin solution that can be applied to controlling the bath level of molten metal. 11... Molten metal tank, 12... Plating nozzle, 13... Opening, 14... Steel strip, 15... Deflector roll, 16... Molten metal, 17...
Box, 18... Supply tank, 19... Supply port, 2
0... Supply pipe, 21... Bung, 22... Air cylinder, 23... Rod, 24... Float, 25...
Core, 26...differential transformer, 27...air pipe,
28...operating valve.
Claims (1)
ルに金属帯を極めて近接させながら走行させて、
金属帯とノズル開口部のめつき浴との濡れ付着力
によつて溶融金属を吸い出して金属帯をめつきす
るメニスカスコーテイング方法において、前記溶
融金属槽の近傍に溶融金属の補給槽を配置して、
該補給槽の補給口に補給量調整装置を、また溶融
金属槽に浴面検出装置を設けて、溶融金属槽の浴
面が設定位置より低下したとき、浴面検出装置が
補給量調整装置に対して補給量の増大または補給
開始を行なわせて、溶融金属槽の浴面を常に設定
位置に保つようにしたことを特徴とする溶融金属
のメニスカスコーテイングにおける浴面制御方
法。1. A plating nozzle is provided in a molten metal tank, and a metal strip is run in close proximity to the nozzle,
In the meniscus coating method in which the metal strip is sucked out by the wetting adhesive force between the metal strip and the plating bath at the nozzle opening and the metal strip is plated, a supply tank for molten metal is disposed near the molten metal tank. ,
A replenishment amount adjustment device is provided at the replenishment port of the replenishment tank, and a bath level detection device is provided in the molten metal tank. 1. A bath surface control method for meniscus coating of molten metal, characterized in that the bath surface of a molten metal tank is always maintained at a set position by increasing the amount of replenishment or starting replenishment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4861485A JPS61207556A (en) | 1985-03-12 | 1985-03-12 | Method for controlling surface of bath during meniscus coating of molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4861485A JPS61207556A (en) | 1985-03-12 | 1985-03-12 | Method for controlling surface of bath during meniscus coating of molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61207556A JPS61207556A (en) | 1986-09-13 |
| JPH0526862B2 true JPH0526862B2 (en) | 1993-04-19 |
Family
ID=12808286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4861485A Granted JPS61207556A (en) | 1985-03-12 | 1985-03-12 | Method for controlling surface of bath during meniscus coating of molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61207556A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01139745A (en) * | 1987-11-25 | 1989-06-01 | Nippon Steel Corp | Plating device |
| TW199911B (en) * | 1991-12-04 | 1993-02-11 | Armco Steel Co Lp | |
| DE10343648A1 (en) * | 2003-06-27 | 2005-01-13 | Sms Demag Ag | Device for hot dip coating of a metal strand and process for hot dip coating |
| EP1700869A1 (en) | 2005-03-11 | 2006-09-13 | 3M Innovative Properties Company | Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201275A (en) * | 1961-12-21 | 1965-08-17 | Gen Electric | Method and apparatus for meniscus coating |
| JPS5464027A (en) * | 1977-11-01 | 1979-05-23 | Asahi Glass Co Ltd | Ultrasonic process for one side molten metal plating |
| JPS5967357A (en) * | 1982-10-08 | 1984-04-17 | Kawasaki Steel Corp | Method for coating metal on steel plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648601A5 (en) * | 1979-07-31 | 1985-03-29 | Battelle Memorial Institute | METHOD OF CONTINUOUSLY COATING A METAL SUBSTRATE ON AT LEAST ONE OF ITS SURFACE WITH ANOTHER METAL AND DEVICE FOR CARRYING OUT SAID METHOD. |
-
1985
- 1985-03-12 JP JP4861485A patent/JPS61207556A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201275A (en) * | 1961-12-21 | 1965-08-17 | Gen Electric | Method and apparatus for meniscus coating |
| JPS5464027A (en) * | 1977-11-01 | 1979-05-23 | Asahi Glass Co Ltd | Ultrasonic process for one side molten metal plating |
| JPS5967357A (en) * | 1982-10-08 | 1984-04-17 | Kawasaki Steel Corp | Method for coating metal on steel plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61207556A (en) | 1986-09-13 |
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