| 摘要 |
A device is provided for removing excess liquid coatant, for example zinc, from a continuous strip for example, steel strip emerging from a bath containing the liquid, the device comprising a cylindrical header having a pair of lips defining an elongate nozzle having a slot for directing a fluid jet onto the strip surface, there being a pair of spaced part-cylindrical baffles nesting within the header and dimensioned to close off all but a portion of the nozzle from the header whereby axial rotation of the baffles varies the length of the open nozzle portion and thereby the length of the fluid jet transverse to the strip. In use, two such devices are disposed on opposite sides of the strip and any impingement of the opposed jets upon each other at or beyond the strip edges is detected by noise level detectors. The baffles can then be moved to minimise the degree of impingement and thereby reduce the noise level resulting from impingement. |
