ROLLING METHOD OF HOT ROLLED STRIP

摘要

PROBLEM TO BE SOLVED: To produce a hot rolled strip of uniform material quality in a high yield by maintaining an inlet side temp. of finishing mill, finish rolling condition, cooling speed of the hot rolled strip fixed in the longitudinal direction of hot rolled strip. SOLUTION: A slab heated to a specified temp. is subjected to roughing by a roughing mill 1, a bar stock is successively heated to an uniform temp. in the longitudinal direction by a heating device 3 and is subjected to finish rolling with passing a continuous hot finishing mill at a fixed speed, the hot rolled strip after finish rolling is cooled with passing a cooling stand at a fixed speed, thus, the hot rolled strip of uniform material quality is produced.