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US 2015/0101383 A1Published application
Method of cold-rolling steel sheet and cold-rolling facility
AssigneeNippon Steel & Sumitomo Metal Corporation
InventorsHiroyuki Mimura, Takao Mukai, Kazuhiro Miyamoto
Life of this patent
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Abstract
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).
Claims8
A method of cold-rolling a steel sheet coil with using a pay-off reel and a single-stand reverse rolling mill, comprising:
- rolling the steel sheet coil in a first pass with using the reverse rolling mill;
- after the rolling, heating a tail end portion of the steel sheet coil to a temperature within a range of not lower than 50° C. nor higher than 350° C. with a heater disposed between the reverse rolling mill and a coil tail end-side tension reel, and winding the tail end portion around the coil tail-end side tension reel;
- and
- after the heating, rolling the steel sheet coil in second and subsequent passes.
1 more element
Dependencies are inferred from the claim text.