METHOD AND DEVICE FOR STITCHING OR VULCANIZATION OF ELONGATED ELEMENT Russian patent published in 2017 - IPC H01B13/14 

FIELD: technological processes.

SUBSTANCE: conductive element is covered with a stitched synthetic material at extrusion step (4) and the stitching reaction is carried out after the extrusion step (4). The conductive element is preheated at the preheating step (3) before the extrusion step by generating within the conductive element of inductive eddy currents that heat up the conductive element. The preheating step (3) is carried out with gradual raising of the conductive element temperature so that the difference (DT) in temperatures between the outermost region (a) of the conductive element and the inner layer (b) of the conductive element remains below a predetermined level at the end of the preheating step.

EFFECT: invention ensures against loss of contact between its layers via temperature difference reduction in the cross section of the conductive element.

10 cl, 5 dwg