Magnetic Levitation of 0.1-mm-thick Steel Plate Considering its Flexibility and Inductance Characteristics

抄録

This paper deals with magnetic levitation techniques for the steel processing industry. Adopting such techniques is a beneficial way to maintain the high quality of steel surfaces. However, control for the levitation and guidance of the thin steel plates is not so easy, because of their mechanical and electromagnetic characteristics. In particular, the thinner the steel plate, the more difficult it is to control its levitation, guidance and conveyance. We already established stable magnetic levitation and guidance control for 1.6mm-thick steel plates. In this paper, we aim at establishing stable magnetic levitation for a 0.1mm-thick steel plate, which has thinness similar to paper. In order to realize such a noncontact system for 0.1mm-thick steel plates, we have to take account of its vibration and magnetic saturation and leakage. This paper details a methodology for stable magnetic levitation and guidance, and shows many successful experimental results for such a paper-like thickness of a steel plate.