Method of cold-rolling steel sheet and cold-rolling facility

摘要

In cold-rolling a steel sheet coil, when a tail end portion of a steel sheet coil (7) is wound around a tension reel (3) prior to second-pass rolling after the completion of first-pass rolling, the tail end portion is heated to a temperature within a range of not lower than 50° C. nor higher 350° C. with a heater disposed between a rolling stand (1) and the coil tail end-side tension reel (3).

主权项

1. A cold-rolling facility for cold-rolling a steel sheet coil comprising:
a pay-off reel from which the steel sheet coil is uncoiled; a single-stand reverse rolling mill; a first tension reel on the opposite side of the reverse rolling mill from the pay-off reel; a second tension reel on the same side of the reverse rolling mill as the pay-off reel; a deflector roll disposed between the reverse rolling mill and the second tension reel, and a heater disposed between the deflector roll and the second tension reel, and heating a tail end portion of the steel sheet coil.