VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES MATERIALFLUSSES

摘要

The invention relates to a method for electrically controlling a flow of material, wherein a single- or multi-component, essentially polymer-based material (1), such as plastics, elastomer or the like, is charged electrically (I) and sprayed (II) in an electrical field (E) to a three-dimensional mould (2)/target (3). The method of the invention makes use of the mould (2)/target (3) set at an electric potential and provided with two or more treatment blocks (Li) to be set at voltage levels different from each other, especially for coordinating the courses of sprayed material particles and the electrical field (E) affecting the same, in such a manner that each section/area of the mould/target surface forms a material layer of desirable thickness in the spraying cycle (II). The invention relates also to an apparatus operating in accordance with the method.