板坯变形预测模型的开发

DEVELOPMENT OF SLAB DEFORMATION PREDICTION MODEL

宝钢 15 80 m m热轧加热炉具有双排装料的功能 ,在装双排短料时 ,当坯料进入均热段后会出现板坯悬臂长度大于 1m的情况 ,使板坯出炉时由于下挠量 (变形 )过大而造成板坯下挠部分与出口端墙相碰的事故 ,影响生产。因此 ,开发了下挠量预测模型。可以在板坯装钢时 ,对其在出炉时的下挠量进行预测计算 ,从而预先采取措施 ,避免事故。

The furnaces for 1580 Hot Rolling Mill Plant at Baosteel can charge two short slabs in a row. When rows of short slabs are charged the rows of slabs in the soaking zone, may be expanded by more than one meter and the deformed slabs may collapse with the side wall of furnace and influence production during discharging. In this paper a predicting model has been developed, by which the deformation can be calculated and it is possible to take some measures to avoid accident.