COOLER FOR METALLIC STRIP

摘要

PURPOSE:To permit uniform cooling in the width direction of a metallic strip by casting spiral hollow pipes in the body part of a roll thereby forming flow passages for cooling media. CONSTITUTION:Spiral hollow pipe 13 are cast in a body part 3 made by casting to form flow passages 8 for cooling media. The pipes 13 are connected to hollow shafts 4 by means of a water supply pipe 15 and a water discharge pipe 16. The shafts 4 and the part 3 are fixed by hubs 12. Since the passages 8 are formed independently of the pipes 13, there is no possibility for the occurrence of bypassing and the inside of the body part can be cooled uniformly. The thermal strains on the outside surface of the body part are absorbed by the restraining force of partition members 14 and the outside surface of the body part is maintained flat; therefore a metallic strip contacts with the part 3 uniformly, and the uniform cooling in the width direction of the metallic strip is made possible.