Edge-Supported Magnetic Levitation System for Flexible Steel Pates

(Experimental Study on the Relationship between Thickness of Steel Plate andVibration Characteristics during Levitation)

Abstract

　Flexible steel plates are widely used in various industrial fields. Flexible steel plates are currently conveyed by rollers in the conveying process, and the contact between the steel plate and the rollers can cause minute scratches on the surface of the steel plate. These scratches can cause quality deterioration of the steel plate surface. To solve this problem, research has been conducted on non-contact gripping of flexible steel plates using a magnetic field from an electromagnet. Steel plates are thin and easily deflected, and they tend to vibrate in complex shapes during magnetic levitation. Therefore, the authors have proposed a magnetic levitation system in which two electromagnets are placed on each of the two sides of a flexible steel plate to be levitated. In this report, the effects of plate thickness and steady-state current on levitation stability are clarified.