Shape control method for plate rolling

Abstract

PURPOSE:To make a rolled stock a good shape and to improve the yield by setting a thermal crown of a work roll calculated using a model calculation based on a roll cooling condition and a bending force of an intermediate roll and of the work roll based on a roll shift amount. CONSTITUTION:A thermal crown state of a work roll 6 is calculated using a model calculation based on a roll cooling condition (a flow rate, temp., and concentration) of a plate rolling mill 5. A bending force of an intermediate roll 7 and of the work roll 6 is calculated based on a shift amount of the intermediate roll 7 with consideration for a condition of a stock in the inlet side (a dimension, crown, and deformation resistance) and a rolling condition (a tension, speed, screwdown ratio, and roll diameter); and the shift amount of the roll 7 is set so that a bending force distribution of the work roll 6 equals to the target value. With the above procedures, a dimension and shape of the rolled stock 1 and the yield are improved.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S5481153-AJune 28, 1979Ishikawajima Harima Heavy Ind Co LtdThermal crown controller for rolling mill

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    EP-0776710-A1June 04, 1997Sms Schloemann-Siemag AktiengesellschaftDispositif pour influencer le profil d'une bande laminee