Apparatus for inductive heating of workpiece e.g. metal sheets, has induction coil comprising conductor whose radius of curvature along winding is set to predetermined value

摘要

The apparatus has induction coil (1) comprising conductor (3) extending along winding (5). The radius of curvature of the conductor along the winding is 10 mm. The induction coil has circular or spiral shape. The conductor is designed as a tube or a hollow conductor. The radius of curvature is selected based on a cross section of the conductor and/or size defined by an induction coil surface face.