Electric heater with clamping jacket
Abstract:
An electric heater (100) with an axial opening (131) for receiving an object to be heated, with an electric heating element (130) surrounding the axial opening (131) in at least in some sections and with an essentially cylindrical or essentially frustoconical clamping jacket (110) surrounding the electric heating element (13) at least in the radial direction for generating an adjustable force acting radially in the direction of an axis (A) of the axial opening (131). The clamping jacket (110) is a multipart clamping jacket and has at least one pressing segment (113, 114) for introducing the force acting radially in the direction of an axis (A) of the axial opening (131) as well as at least one clamping segment (111, 112), with which the width of the gap (119a, 119b) between adjacent edges of oppressing segments (113, 114) can be varied for adjusting the force acting radially in the direction of an axis (A) of the axial opening (131) by moving the clamping segment (111, 112) relative to the pressing segment (113, 114).
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