INNER DIAMETER SURFACE INDUCTION HEATING COIL

摘要

An inner diameter surface induction heating coil capable of improving heating efficiency and efficiently heating the inner diameter side of a cylindrical region, such as a hole formed in a heating subject. More particularly, a inner diameter surface induction heating coil for induction-heating the inner diameter surface that is a surface located on the inner diameter side with the centerline defined by the axis of a cylindrical region formed in a member, the coil comprising a hollow case (12) made of insulation material, and a conductor in the form of a thin sheet disposed within the case (12), wherein a heating member (14) to which high frequency current is applied is installed.