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近年来,人们对于有色金属轧制产品质量的重视,尤其对于开发带材形状和带宽方向厚度分布的自动控制系统的重视越来越高。日本石川岛播磨公司已研制了一种效果为通常弯辊装置3～5倍的双轴承箱工作辊弯辊装置,(DC-WRB),并对其优益性能做了报导。确立一种能够用传感器和执行元件对带材形状和凸度进行独立自动闭环控制的装置,不仅能改善质量稳定性,而且也能提高生产率,因为在轧制期间靠操纵手观察和控制带材形状和凸度是很困难的。所幸,石川岛播磨公司已经把自动平整度控制(AFC)新演算系统应用到铝冷轧机、铝箔轧机和铝带材热轧机上。本文报导了AFC系统的部分技术。该AFC系统的特点是把DC-WRB和可变凸度轧辊(VC-ROll)以及辨别形状方式和轧机横刚性控制用的傅里叶分析演算结合了起来。
In recent years, people pay more attention to the quality of non-ferrous metal rolling products, especially for the automatic control system of developing strip shape and thickness-wise thickness distribution. Japan Ishikawajima Shimayama Co., Ltd. has developed a dual-bearing box work roll bending apparatus (DC-WRB) which has the effect of 3 to 5 times the usual roll bending apparatus and has reported its advantages and benefits. The establishment of a device that uses sensors and actuators to independently and automatically control the shape and crown of the strip not only improves mass stability but also increases productivity because the strip is observed and manipulated by the manipulator during rolling Shape and crown is very difficult. Fortunately, Ishikawa Shima Mill has applied the new automatic caliper control (AFC) calculus system to aluminum cold rolling mills, aluminum foil mills and aluminum strip hot rolling mills. This article reports some of the AFC system technologies. The AFC system combines the DC-WRB with the variable crown roll (VC-ROll) and the Fourier analysis calculations for identifying the shape of the roll and the roll rigidity control.