INDUSTRIAL EXPERIMENT ON RAPID COOLING-DOWN OF STEEL TUBES ON COOLING BED

It is possible to speed up the cooling-down of hotrolled tubes after reducing with a newly developed 3-zone multi-nozzle water-mist cooling system equipped with rotary-core type jet nozzles and a structure of top elbow-water-conducing. Described in this paper are the design principle, the cooling method adopted as well as the result of the experiment in this regard.