| 摘要 |
<p>Provided is an electric heating device capable of uniformly supplying electric current to a workpiece without causing wear of an electrode. The electric heating device (1) heats a plate-shaped workpiece (W) by supplying electric current to the workpiece (W) and comprises: a pair of electrodes (10.10) disposed spaced at a predetermined distance from each other in a direction toward which the current is supplied and used for supplying the current to the workpiece (W); and a pair of clamps (20.20) for fixing the workpiece (W). The electrodes (10) extend along the surface of the workpiece (W) in a direction orthogonal to the direction toward which the current is supplied while maintaining a certain length in the direction toward which the current is supplied, and are provided so as to sandwich the workpiece (W) from both front and back surfaces thereof. The clamps (20) are provided in the vicinity of the electrodes (10) so as to sandwich a part of the workpiece (W) other than a heated portion from both front and back surfaces thereof. The pressure with which the clamps (20) sandwich the workpiece (W) is set to a larger value than the pressure with which the electrodes (10) sandwich the workpiece (W).</p> |
