Plating tank with outer tank made of steel and inner tank made of a chemically resistant plastic

摘要

In order to allow for an electroplating bath of a steel-made outer tub (1) and produced in their plastic fitted inner tub (5) a tension-free expansion when the temperature increases while a water- and gas-tight seal between the inner (5) and the outer tub to achieve (1), arranged circumferentially a a surge tank (8) forming channel (15) at the upper edge of the inner tub (5), in the one leg (12) of a on the edge (3) of the outer tank (1) resting preferably projecting U-shaped frame (10). The channel 15 is provided with a liquid (9), preferably water filled, in which the legs (12) is immersed, but to rest on the floor without the channel (15). The upper edge of the channel (15) is lower than the edge of the inner tub (5), so that out of the water lock (8) via running water (9) is not in the interspace (6) between the inner (5) and the outer tub (1 ) but (in the inner tub 5) runs.