Abstract

Recently, demand in improving of quality for thin steel plates used in various industrial products is increasing. Thin steel plates widely used in various industrial products are generally conveyed while in contact with rollers in the conveyance process. To solve this problem, we have proposed a hybrid levitation control system for thin steel plate using the magnetic force generated by permanent magnets, which have no operational costs. In the previous studies, fundamental research on the optimal conditions in terms of the number and position of permanent magnets, was carried out, in which the attractive force of the permanent magnet applied to the rectangular thin steel plate was simplified and modeled. In this study, the gap, number and optimal position of permanent magnets for suppressing the displacement of a magnetically levitated thin steel plate were investigated using thin steel plates (thickness: 0.30 and 0.19 mm).

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