CAJ | 학술논문

热连轧带钢生产过程中，轧制力预报精度直接影响到带钢厚度的精度，而轧制力预报精度很大程度上依赖于轧制力自学习。针对换规格时轧制力预报精度偏低的问题，通过对产生轧制力偏差的原因分析，引入基于钢种变形抗力的抛物线偏差曲线的概念、机架设备自学习系数和机架设备状态影响系数。现场实际应用效果表明：换规格后的首块钢的轧制力预报精度与传统方法相比，带钢头部的轧制力预报相对误差减小4%，满足自动厚度控制系统的控制要求，提高了带钢的产品质量，取得了良好的经济价值，适于工业推广。
열련알대강생산과정중，알제력예보정도직접영향도대강후도적정도，이알제력예보정도흔대정도상의뢰우알제력자학습。침대환규격시알제력예보정도편저적문제，통과대산생알제력편차적원인분석，인입기우강충변형항력적포물선편차곡선적개념、궤가설비자학습계수화궤가설비상태영향계수。현장실제응용효과표명：환규격후적수괴강적알제력예보정도여전통방법상비，대강두부적알제력예보상대오차감소4%，만족자동후도공제계통적공제요구，제고료대강적산품질량，취득료량호적경제개치，괄우공업추엄。
In the hot strip rolling process,the prediction precision of the rolling force which is largely dependent on the rolling force self-learning directly affected the thickness precision of strips.In the view of the rolling force prediction precision decreased with the specifications changing,and through the analysis of the reasons for generating rolling force deviation,this paper introduced the concept of steel grade deformation resistance parabolic deviation curve,the equipment standers self-learning coefficient and equipment state effective coefficient to solve the problems.The practice application results showed that the relative error of the rolling force prediction for the first piece strip after changing specifications decreased by 4% compared with the conventional prediction method which satisfied the automatic thickness control system.The product quality of the strip was enhanced and good economic value was obtained,which indicated that the new prediction method was suitable for the industrial production promotion.