COOLING OF CAST BILLETS

摘要

The process and the equipment serve for cooling cast strands (16) of an aluminium alloy after homogenisation annealing. …The strands (16) emerging at a first temperature continuously one after the other in the longitudinal direction from a high-temperature annealing furnace (10) are passed in-line at a programme-controlled advancing speed and under programme-controlled spraying on all sides with a coolant through a spray unit (12) in order to reach an adjustable surface temperature. The internal temperature and surface temperature of the strands (16) equalise a short time after leaving the spray unit (12). …The spray unit (12) for the strands (16) running through in-line is fitted over its entire length (1) and over the entire circumference of its interior (20) with nozzles which can be adjusted altogether, in groups or individually. ……