Importance

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Abstract

An electric heating device (100), especially for an injection molding die, has a material tube (101), through which passes a duct (109) for a flowable material, a heater (102, 122, 132) for heating the flowable material when this is present in the duct (109) and a thermocouple (103). The heater (102, 122, 132) is pushed over the material tube (101) or is placed round the material tube (101), so that the material tube (101) is received in an opening passing through the heater (102, 122, 132) along the direction in which the material tube (101) extends. The heater (102, 122, 132) is arranged detachably at the material tube. The thermocouple (103) is arranged at least in some sections between a surface of the material tube (101), which said surface faces away from the duct (109), and the surface of the heater (102, 122, 132), which latter surface faces the duct (109), so that when the heater (102, 122, 132) is detached from the material tube (101), the thermocouple (103) and heater (102, 122, 132) form separate assembly units. A process is provided for manufacturing such an electric heating device, including the steps of manufacturing a heater, inserting a thermocouple into a groove of the heater or of a jacket tube and pushing the heater over the material tube with the thermocouple inserted into the groove, wherein the thermocouple inserted into the groove is clamped during or after the pushing over of the heater.

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First Claim