Strip treating apparatus

Details Strip treating apparatus Strip treating apparatus

C - Chemistry, Metallurgy

25

D

C25D 7/06 (2006.01) C25F 7/00 (2006.01)

Patent

CA 2191225

The present invention relates to an apparatus for treating a strip such as a steel strip. The first object is to provide an electrode opening and closing mechanism having a simple construction. The second object is to uniform the flow of a solution around the electrode. The third object is to prevent causing irregularities in the treatment,caused by the variation of surface level of the solution between the electrodes. To attain the first object, one of the mutually facing electrodes is stationarily secured, and there is provided an opening and closing mechanism for moving the other electrode. To attain in the second object, stabilizing members for solution flow are provided on the electrodes, a fluid-storing room is formed between the stabilizing member for solution flow and the electrode,and a slit-shaped hole for uniformly flowing the solution between the electrodes from the fluid-storing room, is formed at right angles to the travelling direction of the strip. To attain the third object, a bus bar has at its portion for suspending the electrode a bent-shaped portion so that the electrode is always immersed into the treating solution.

Appareil pour le traitement d'une bande telle qu'une tôle d'acier. Les objectifs de l'invention sont d'obtenir un système de commutation d'électrodes de structure simple, de régulariser l'écoulement du liquide de traitement autour des électrodes et de prévenir les irrégularités de traitement dues aux variations de niveau du liquide de traitement entre les électrodes. Pour atteindre le premier objectif, on prévoit un dispositif de commutation d'électrodes fixant l'une des électrodes se faisant face et déplaçant l'autre; pour atteindre le second objectif, on munit les électrodes de plaques de redressement d'écoulement de façon à définir entre les électrodes et lesdites plaques des espaces de retenue de liquide, et des fentes permettant au liquide de traitement de s'écouler uniformément entre les électrodes à partir des espaces de retenue de liquide sont ménagées dans une direction perpendiculaire à celle du mouvement de la bande; pour atteindre le troisième objectif, on courbe des barres omnibus supportant les électrodes au niveau de leurs parties de support pour que les électrodes restent constamment immergées dans le liquide de traitement.

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