| 摘要 |
<p>A surface treatment unit having multiple vats 1, 2 and 3 arranged side by side with one another, which contain treatment solutions, in which treated items 7, which are carried by a conveyor truck 12 moving above the vats, can be immersed, and in which the conveyor truck is enclosed by a jacket 13 open at the bottom, is provided with a ventilation system to reduce the quantity of air that has to be extracted, the jacket 13 being provided with an extraction pipe 14, which is connected by a slide coupling 15 to an extraction duct 16, and at the upper edge of each vat a two-part cover 4, 5 is pivotally supported, which in the turned-down position closes against a lifting yoke 6, which is designed to carry the items to be treated 7'', which are lowered into a treatment vat, and this cover 4, 5 closes in the raised position to the jacket 13 in order to enclose the treated item 7', which is raised above a vat. <IMAGE></p> |
