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在如图所示的钢板轧制系统中,因两组轧辊之间相距较远,往往产生数个～数百Hz的振动,于是恶化钢板表面质量;如果在两组轧辊之间设置一些滚动装置,虽能抑制振动,但滚动体也会损伤工件表面,所以必需采用非接触抑振。磁力抑振法是在移动的钢板上下设置电磁铁,由传感器测得的振动信号,反馈给电磁控制器,可是通过电磁铁磁力的作用,抑制钢板的振动。因电磁铁、传感器均不接触钢板,故不会划伤钢板表面。
In the plate rolling system shown in the figure, vibrations of several hundreds to several hundred hertz often occur due to the distance between the two sets of rolls, thereby deteriorating the surface quality of the steel sheet. If some rolling devices are provided between the two sets of rolls , Although can inhibit the vibration, but the rolling body will also damage the surface of the workpiece, it is necessary to use non-contact vibration suppression. Magnetic anti-vibration method is set up in the moving plate of electromagnet, the vibration signal measured by the sensor, feedback to the electromagnetic controller, but through the role of the magnetic force of the magnet, inhibit the vibration of the plate. Due to the electromagnet, the sensor does not touch the steel plate, it will not scratch the steel surface.