Heating apparatus for losses dielectric of preforms of articles of thermoplastic material

摘要

The invention relates to a heating apparatus for losses dielectric of preforms of articles which have to go into a machine for the blow moulding. / p & & p & each heating station comprises an electrode plate 50 and an electrode 76 whose profile can be modified by means of mounting appropriate on a column 52. The part 110 of a preform for faconnable 113 in the thermoplastic material is driven, by turning, so as to pass between the electrodes 50, 76, while an alternating electrical field produced by a list 102, is produced between these electrodes. p / p field of application: molding machines by heating and blowing.