由于邻近效应和集肤效应的影响，感应加热时只是工件中靠近外表皮透入深度为定值的一层直接发热，内部发热很少；

Due to its proximity effect and skin effect, induction heating is only the workpiece near the outer skin penetration depth of a layer of fixed value of the direct heating, internal heating is small;

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由于邻近效应和集肤效应的影响，感应加热时只是工件中靠近外表皮透入深度为定值的一层直接发热，内部发热很少；

Due to its proximity effect and skin effect, induction heating is only the workpiece near the outer skin penetration depth of a layer of fixed value of the direct heating, internal heating is small;

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