METHOD FOR PREDICTING SHAPE OF METALLIC STRIP, METHOD FOR JUDGING SHAPE ON THE BASIS OF PREDICTED SHAPE AND METHOD FOR STRAIGHTENING SHAPE

摘要

PROBLEM TO BE SOLVED: To provide a predicting method of the shape of a metallic strip by which the shape after cooling to the normal temperature is accurately predicted about the metallic strip after hot rolling and also to provide exact judging method of the shape on the basis of the predicted shape and the straightening method of the shape.

SOLUTION: On the basis of the temperature and the shape of the metallic strip 5 which are on-line measured with a thermometer1 and a flatness gage 2 installed on the outlet side of the final stand 6 of a finishing mill or this side of a coiler 10, the shape when the strip is cooled to the normal temperature is predicted by an analytical model taking phase transition into consideration.

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