自1979年以后,鞍钢第二薄板厂热轧电机钢板板形大有改善。主要采取了以下措施:控制轧制电机钢板,减小钢板凸度;改变平整机轧辊曲线,上下辊都采用十0.08mm 曲线:在凸度为160mm 的退火底板上采用平刮法;等温退火降低加热速度和冷却速度。上述措施的实施,使电机钢板在退火后得到了良好的板形,甲级和乙级的板形达到90%以上,其中甲级占30%。 Since 1979, the plate shape of the hot rolled motor of the second sheet mill of Ansteel has greatly improved. Mainly taken the following measures: Controlling the rolling steel plate, reducing the plate crown; Change the flattening machine roll curve, the upper and lower rollers are used ten 0.08mm curve: In the convexity 160mm annealing floor using flat scraping method; Isothermal annealing Reduce heating rate and cooling rate. The implementation of the above measures, the motor plate after annealing obtained good shape, Grade A and B plate shape to more than 90%, of which 30% of Grade A.