초록 ▼

The invention relates to an appliance for heating an electroconductive material, preferably one which hardens as a result of this heating process, this material being in the form of a continuous strand which is guided inside a channel (14). In this appliance, a high-frequency generator (23) is provi

The invention relates to an appliance for heating an electroconductive material, preferably one which hardens as a result of this heating process, this material being in the form of a continuous strand which is guided inside a channel (14). In this appliance, a high-frequency generator (23) is provided, two capacitor-plates (30) being arranged on two oppositely-located sides of the channel (14), which sides are formed by walls (10 to 13) composed of an electrically insulating material, these capacitor-plates (30) being staggered by at least their length and being connected to a non-earthed terminal of the high-frequency generator (23), while two further capacitor-plates (31, 32) are arranged on each of the two sides, adjacent to the two capacitor-plates (30), these further capacitor-plates (31, 32) being connected to the earthed terminal of the high-frequency generator (23) and extending along the channel (14) for a distance such that the strand outside the heating zone is no longer at a potential. The appliance can be used, in particular, in a belt-type continuous-moulding unit for the manufacture of blanks for building materials, starting from a raw mixture having a high dielectric coefficient.

대표청구항 ▼

An Appliance for heating an electroconductive material, preferably one which hardens as a result of this heating process, this material being in the form of a continuous strand comprising: a high-frequency generator (23), a channel (14) formed by walls (10 to 13) composed of an electrically insulati

An Appliance for heating an electroconductive material, preferably one which hardens as a result of this heating process, this material being in the form of a continuous strand comprising: a high-frequency generator (23), a channel (14) formed by walls (10 to 13) composed of an electrically insulating material and within which the continuous strand is guided, two capacitor-plates (30) arranged on two oppositely located sides of the channel (14), the capacitor plates (30) being staggered by at least their length and being connected to a non-earthed terminal of the high-frequency generator (23), while two further capacitor plates (31,32) are arranged on each of the two sides, adjacent to the two capacitor plates (30), the further capacitor plates (31, 32) being connected to the earthed terminal of the high-frequency generator (23) and extending along the channel (14) for a distance such that the strand outside the heating zone is no longer on poential with respect to earth potential.