JPS58151499A - Anode adjuster in radial cell type electrolytic cell - Google Patents

Abstract

PURPOSE:To adjust the disposition of anodes easily in optimum positions and to improve the workability and efficiency of an electrolytic cell, by providing a pair of supporting legs at both ends of a supporting trough which holds an electrode support, projecting the supporting legs from the bottom of the cell and applying thrust from the outside of the cell. CONSTITUTION:In a radial cell type electrolytic cell, a supporting trough 7 is placed on an inclined receiving base 9 which guides the forward and backward movement of an electrode support 5, and a pair of supporting legs 10 are provided at both ends of the trough 7. The supporting legs are projected from the bottom of the cell by way of sealing means. Thrust is applied to the projecting ends by using operating devices 11 such as liquid pressure cylinders or jacks. The disposition of the anodes is thus adjusted according to the change in the width of a metallic strip 2 or the fluctuations of electrolyzing conditions, whereby the electricity conducting gaps are easily and adequately matched.

Description

【発明の詳細な説明】 この発明は、ラジアルセル−′１）１４情＆Ｃｊｃｌけ
る陽極調整装蓋に関し、とくに電解液中における溶出な
どＫよる肉厚の減少な補うべく逐次に更新される消耗電
極のｄｔ解楢内に姑ける載置姿勢の保持と、更新の際の
順送り移動の案内とを、Ｉｌｌ′！！４のための大電流
の伝達導通下に司る、電極サポートの位置定め保持を簡
便に調節するための陽極−贅装置を提案しようとするも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radial cell anode adjustment cap, in particular a consumable electrode that is updated successively to compensate for a decrease in wall thickness due to K dissolution in an electrolytic solution. Ill'! maintains the mounting position during the dt clearing process and guides the forward movement during updating. ! The purpose of the present invention is to propose an anode-width device for simply adjusting the positioning and holding of an electrode support under the transmission and conduction of large currents.

一般にラジアルセル型電解槽は、たとえば冷延薄板のよ
うな金属ス）　ＩＪツブの連続亜鉛めっきラインのごと
きにおいて、と＜Ｋ７１１ｉ、速下に従つ℃、著しく高
能率の′嵯解−呆に適合すべく、醪横内に、大外径の通
電用回転ドラムを、七のはぼ半周にわたってめっき液中
に浸漬し、槽外のデフレクタ−ロールを介して金属スト
リップを一解憎の内外に導入し、導出して温浸通板させ
るように通電用回転ドラムの外周に巻きかけ走行させ、
その間、通電用回転ドラムに対しその半径方向に金属ス
トリップとの間に通′鴫ギャップを隔てて向い合う配置
の陽極（アノード）からめつき液な通して大′−流の通
電を行うように使用される。In general, radial cell type electrolyzers are used in continuous galvanizing lines of IJ tubes (for example, for cold-rolled sheets of metal), and at temperatures below K711i, with extremely high efficiency. In order to meet this requirement, a rotating drum with a large outer diameter for energization is immersed in the plating solution for half a circumference in the tank, and a metal strip is introduced inside and outside the tank via a deflector roll outside the tank. Then, it is pulled out and wrapped around the outer circumference of the energizing rotating drum so as to pass through the heat-distilled plate.
During this time, the plating liquid is passed through the anode, which is placed facing the metal strip in the radial direction of the rotating drum, and is used to apply a large amount of current. be done.

この場合、金部ス）　＋７ツプの片面でのみ電解が行わ
れるので、片面だけめっきを行って他面を無処理のまま
とするような、いわゆる片面めっきに有利に適合するこ
とも特色Ｖｃｉｌえられるが、この種の大規模ｍｅにあ
っては、甚しい大成力が、投入されるので、上記−の通
電ギャップを、できる限り小さく維持することが、無効
消費成力を軽減抑制するためＫも、肝要である。In this case, since electrolysis is performed only on one side of the +7 plate, it is advantageous for so-called single-sided plating, where only one side is plated and the other side is left untreated. However, in this type of large-scale ME, a tremendous amount of power is input, so it is important to keep the above-mentioned energization gap as small as possible in order to reduce and suppress the ineffective power consumption. K is also important.

ところで通常の電気めっきにあっては、アノードとして
不溶性電極を用いる場合、めっきをすべき金−を可溶性
電極に用いる場合とがあり、これらのうちとくに後者は
、めっき液の保守管理が、アノードから不断にめっき金
属成分の補給を期待し得ることから簡便であり、また電
極面でのガス発生も少く、従ってとくに大を流な投入し
て厚めつきするような用途で好適である。By the way, in normal electroplating, there are cases in which an insoluble electrode is used as an anode, and cases in which gold to be plated is used as a soluble electrode, and in the latter case in particular, maintenance and management of the plating solution is carried out from the anode. It is convenient because it can be expected to constantly replenish the plating metal components, and there is little gas generation on the electrode surface, so it is particularly suitable for applications where a large amount is poured quickly and thick plating is performed.

しかるに、この場合アノードがめっきの進行につれて溶
出し、その肉厚減少により通電ギャップは次第に拡大し
、そこでの通電抵抗、の増大により電流密度が漸減し、
その結果めっき付着量が一次に減少するようＫなる。そ
こで可溶性電極を用いる上記めっき方式では、該電極の
経時的な消耗に応じる通電ギャップの拡大を、逐次に修
正することが必要である。However, in this case, the anode elutes as plating progresses, the current carrying gap gradually expands due to the decrease in the wall thickness, and the current density gradually decreases due to the increase in the current carrying resistance there.
As a result, the amount of plating adhered to K decreases linearly. Therefore, in the above-mentioned plating method using a soluble electrode, it is necessary to sequentially correct the expansion of the current conduction gap in response to wear of the electrode over time.

この通電ギャップの逐次修正のために従来から、それぞ
れ弓形をなして１解槽内の通電用回転ドラムを部分的に
囲む、消耗電極片の多数を、通電用回転ドラムの円筒母
線に沿う順送り移動可能に横並べして、この順送り＃動
を、そのｌピッチ毎にその間における該電極片の消耗式
だけ、通電用回転ドラムに近づくような勾配を付した案
内により導き、この案内はまた、消耗電極片の群よりな
る陽極の全体くわたる給電にも役立たせるようにされて
いる。この案内はしばしば、電極サポートと呼ばれる。Conventionally, in order to correct this energization gap sequentially, a large number of consumable electrode pieces, each of which has an arcuate shape and partially surrounds the energizing rotating drum in one disassembly tank, are sequentially moved along the cylindrical generatrix of the energizing rotating drum. This sequential movement is guided by a sloped guide that brings the electrode piece closer to the energizing rotating drum every l pitch, and this guide also It is also useful for supplying power throughout the anode, which is made up of a group of electrode pieces. This guide is often referred to as an electrode support.

従って通電用回転ドラムの片側で新しい消耗電極を、ま
た他側から使い古しのやせた消耗電極を、それぞれ着脱
する手順を含めた消耗電極の順送り移動により通電ギャ
ップの修正を伴うアノードの逐次更新が行われる。Therefore, by sequentially moving the consumable electrodes, including the steps of attaching and detaching a new consumable electrode from one side of the energizing rotating drum and a worn out consumable electrode from the other side, the anode is updated one by one with correction of the energizing gap. .

とこに電極サポートは、まずめっき液に侵されずかつ過
電圧が小さく、そして安価であることなど、この種の設
備に必要な条件を満たすように通常は、方形のかなりに
大きい断面（はぼ４５０×４ｓＯ■）に成形した黒鉛棒
より主として成るものとされる。In particular, electrode supports are usually rectangular with a fairly large cross section (approximately 450 mm It mainly consists of a graphite rod formed into a shape of x4sO■).

この電極サポートは、ＩＥＷ４槽の槽底で正確に位置決
めされなければ、上記通電ギャップを上記ア・ノードの
逐次更新の下に正しく保持することができないので、従
来は、槽底Ｋｔｌｊｋ固に取付けられた固定受台に、Ｖ
みぞを上向きに形成するＬ形鋼な芯材とする支持トラフ
な介して、第１図１ａ）　、　（ｂ）のように保持され
る。図中１は通電用回転ドラム、烏はその下半周に沿っ
て、電解槽Ｔ内を潜没通板中の金属ストリップであり、
８は通電用回転ドラムＩＫ対しその半径方向に金属スト
リップ２との関に通電ギャップＧを隔てて向い合う消耗
電極片畠′の横並べ群よりなるアノードを示し、アノー
ド８は、通常図示したように連載用回転ドラム１０軸心
を挾んで、図に矢印で示した金属ストリップ急の温浸通
板の前後に対設するように、各消耗電極片８′の背面中
央に***形成した突起４により電極サポート５０ａ瀘面
６Ｖｃａう順送り移動な可能に係止し、このＩＫ他ササ
ポート８支持トラフッな介して槽底に設置される固定受
台８によって堅固に取付けていたのである。This electrode support must be precisely positioned at the bottom of the IEW4 tank to properly hold the current-carrying gap under the successive updates of the anode, so conventionally this electrode support is mounted firmly on the bottom of the tank. V on the fixed pedestal
It is held as shown in Fig. 1, 1a) and 1(b), through a supporting trough made of an L-shaped steel core with grooves facing upward. In the figure, 1 is a rotating drum for energization, and 1 is a metal strip running submerged inside the electrolytic tank T along the lower half of the drum.
Reference numeral 8 denotes an anode consisting of a horizontally arranged group of consumable electrodes facing the metal strip 2 in the radial direction of the rotating drum IK with a current-carrying gap G in between. A protrusion 4 is formed at the center of the back of each consumable electrode piece 8', sandwiching the axis of the serial rotary drum 10 and opposing the front and back of the metal strip dipping plate shown by the arrow in the figure. The electrode support 50a and the filter surface 6Vca are locked so as to be movable sequentially, and the electrode support 50a and the support support 8 are securely mounted by a fixed pedestal 8 installed on the bottom of the tank via the supporting trough.

しかるＫこの場合は、アノード８の通電ギャップＧを設
定する電極サポート５が適切に位置定めされているとき
でも、たとえば金属ストリップ８の板幅が、２′のよう
に広くなったとすると、第８図１ａ）　、　（ｂ）　Ｋ
比較して示すように、とくにアノードδの両１１１１１
附近で広幅ストリップ２′に対する通電ギャップＧ’Ｇ
“が、それまでの電解過程で生じたアノードδの消耗挙
動の下でより狭くなり、ここにエツジオーバーコートな
どめっき付着緻不均斉による外観不良の原因となる。However, in this case, even when the electrode support 5 that sets the current-carrying gap G of the anode 8 is properly positioned, if the width of the metal strip 8 is increased to 2', for example, the 8th Figure 1a), (b) K
As shown by comparison, especially both 11111 of the anode δ
Current-carrying gap G'G for wide strip 2' in the vicinity
" becomes narrower due to the consumption behavior of the anode δ that occurred during the electrolytic process up to that point, which causes poor appearance due to uneven plating adhesion such as edge overcoat.

そこでこの発明は、上記のようなめつき操業条件の変動
などに応じて、適切な調整を行うことができるよ与に、
電極サポート５の支持手段について工夫を凝らしたもの
である。Therefore, the present invention has the advantage of being able to make appropriate adjustments in response to changes in the plating operating conditions as described above.
The supporting means for the electrode support 5 is devised.

すなわちこの発明は、上記電極サポー）５を槽底で位蓋
定め保持する支持トラフの両端に通電用關転ドラムの半
径方向における電極サポート６の進退移動に供する一対
の支持脚を設け、この支持脚を槽底かむ封止下に貫通突
出させ、槽外で支持脚の突出端に推力を加える操作装置
を設けたものである。That is, this invention provides a pair of support legs for moving the electrode support 6 back and forth in the radial direction of the energizing drum at both ends of a support trough that positions and holds the electrode support 5 at the bottom of the tank. The legs protrude through the bottom of the tank under sealing, and an operating device is provided to apply thrust to the protruding end of the support leg outside the tank.

第８図１ａ）　、　ｌｂ）　Ｋこの発明の実施例を示し
、番号１〜’ＩＫついては第１図について説明したとこ
ろと共通部分をあられし、この例でとくに支持ドラフチ
を、通電用回転ドラム１の半径方向における電極サポー
ト５の進退移動の案内を司る傾斜受台９に載せ、支持ト
ラフ７の両端に上記進退移動に供する一対の支持脚１０
を設けて図には簡啼図解したがたとえばスタフイングボ
ックスの如き両正手段を介して貫通突出させ、槽外で支
持脚の突出端に推力を加える液圧シリンダ又はジヤツキ
の如き操作装置１１を設ける。FIG. 8 1a), lb) K shows an embodiment of the present invention, and the numbers 1 to 'IK have common parts with those explained in FIG. A pair of support legs 10 are placed on an inclined pedestal 9 that guides the forward and backward movement of the electrode support 5 in the radial direction of the support trough 7, and a pair of support legs 10 are provided at both ends of the support trough 7.
Although only briefly illustrated in the figure, an operating device 11 such as a hydraulic cylinder or jack is protruded through bidirectional means such as a stuffing box and applies thrust to the protruding end of the support leg outside the tank. establish.

従って電極サポート５を槽底に保持する支持トラフッは
、その両端でそれぞれ、通電用回転ドラム１０半径方向
に電極サポート５の進退移、動を任意に導き得るので、
処４ンすべき金属ス）　ＩＪツブ２の板幅変更や、その
他の′電解条件の変動の如きに応じて通電ギャップ［）
’、Ｇ“の適切な整合を容易に導くことができるのであ
る。Therefore, the support trough that holds the electrode support 5 at the bottom of the tank can arbitrarily guide the forward and backward movement of the electrode support 5 in the radial direction of the energizing rotating drum 10 at both ends thereof.
(4) The conduction gap may be changed depending on changes in the width of the IJ tube 2 or other changes in the electrolytic conditions.
', G'' can be easily found.

上記のようにしてこの発明によれば、ラジアルセル型亀
ｍ債における′成ｍ操粟条件に対して陽極配置を、ｊｔ
４姿勢な占めるように簡便に槽外から一節することが二
ｃ＠るので、この種の゛冠解操東の作東性と能率の同上
に、大いに役立つ。As described above, according to the present invention, the anode arrangement can be adjusted to
Since it can be easily accessed from the outside of the tank in 4 positions, it is very useful for improving the ease of construction and efficiency of this type of crown opening operation.

生図面の簡単な一四 第１図＋ａｌ　、　ｉｂｌは、フジアルセル型亀解慴の
従来例につき、電極配置ｋを示すＮｍ図と断面図、第１
ａ図１ａｌ　、　ｌｂｌは、金属ス）　ＩＪタッグ板１
１４ｍ＆史に伴う通電ギャップの変動挙動の説明用比較
図であり、 縞８図（ａｌ　、　ｆｂｌはこの発明の実施例における
遥極配−の側面図と傾−凶である。A simple drawing of the raw drawing 14 Figure 1 + al, ibl is the Nm diagram and cross-sectional view showing the electrode arrangement k, and the 1st
aFigure 1al, lbl is metal) IJ tag plate 1
14 is an explanatory comparative diagram of the fluctuation behavior of the current conduction gap with time, and FIG.

１・・・通電用回転ドラム、２・・・金属ストリップ、
１・・・アノード、８′・・・消耗ｉｔ極片、５・・・
′電極サポート、６・・・載置面、７・・・支持トラフ
、１０・・・支持脚、１１・・・操作装置。1... Rotating drum for energizing, 2... Metal strip,
1...Anode, 8'...Consumable IT pole piece, 5...
'Electrode support, 6... Placement surface, 7... Support trough, 10... Support leg, 11... Operating device.

Claims (1)

【特許請求の範囲】[Claims] １　電郷液を湛えた槽内における金属ストリップの温浸
通板を司る通電用回転ドラムに対し、その半径方向に該
金属ス）　ＩＪツブとの間に通電ギャップを隔てて向い
合う、それぞれ弓形をなす多数の消耗電極片を、通電用
回転ドラムの円筒母線に沿う順送り移動可能に横並べす
る載置面をもつ電極サポートで保持し、逐次に更新を行
うラジアルセル型電解槽において、電極サポートを槽底
で位置定め保持する支持トップの両端に通電用回転ドラ
ムの半径方向における電極サポートの進退移ＩｉＪ＃／
Ｃ供する一対の支持脚を設けてこの支持脚な槽底がら封
止王妃貫通突出させ、槽外で支持脚の突出端に推力を加
える操作ａ瀘を設けたことを特徴とする、ラジアルセル
型′電全槽における陽極間１１！Ｉ置。1. An arcuate-shaped rotary drum for heating the metal strip in a tank filled with electrophoretic solution, facing the metal strip in the radial direction with a current-carrying gap in between and the IJ tube. In a radial cell type electrolytic cell, in which a large number of consumable electrode pieces forming the structure are held by an electrode support that has a mounting surface that can be moved side by side in a sequential manner along the cylindrical generatrix of a rotating drum for energization, the electrode support is IiJ #/
A radial cell type, characterized in that a pair of support legs are provided, the support legs protrude through the sealing queen from the bottom of the tank, and an operation a-filter is provided for applying thrust to the protruding end of the support legs outside the tank. '11 between the anodes in the electric tank! Place I.