作为汽车、电气制品等结构用材的薄板,其厚度要求越来越薄,表面美观性要求越来越高。因此,传统的接触式滚轮传送往往不如人意。日本川田等针对铜、铝等非磁性金属试制了一种安全型非接触式磁力传送装置(如图)。当绕在定子上的线圈通以三相交流电时,便形成移动的磁场,在被传送的工件内形成涡流,涡流与磁场相互作用,同时产生托起工件的斥力和驱动工件移动的推力。 As automotive, electrical products and other structural materials of the sheet, the thickness of the more and more thinner, the appearance of the appearance of higher and higher requirements. Therefore, the traditional contact roller delivery is often unsatisfactory. Kawada Japan for copper, aluminum and other non-magnetic metal trial of a non-contact type safety magnetic transmission device (pictured). When the coils wound on the stator are energized by three-phase AC, a moving magnetic field is formed, creating eddy currents in the conveyed workpiece, which interact with the magnetic field and generate a repulsive force for supporting the workpiece and a thrust force for moving the workpiece.