METHOD TO MANUFACTURE ENAMELLED WIRES Russian patent published in 2013 - IPC H01B13/16 

FIELD: electricity.

SUBSTANCE: on the basis of a film-forming varnish PE-933 of grade B an electrophoretic composition is created, containing the following components, in ml/l: varnish PE-939 of grade B - (290÷300); 1% - liquid ammonia 1% - NH₄OH - (110÷120); dioxane (C₄H₈O₂) - balance; onto a moving wire a positive potential is supplied relative to a grounded body of a bath, at the same time the density of current j of anaphoresis is varied in the range j=(2÷10) mA/cm² proportionately to the speed of wire motion in accordance with the expression where d - thickness of enamel insulation, m; D - wire diameter, in m; L - length of the electrophoretic bath, in m; ρ - density of enamel, kg/m³; k - output of dry residue by current, kg/A×sec; V - speed of wire motion, m/sec.

EFFECT: reduced power inputs for enamelling a wire, higher electric strength of enamel insulation, higher evenness of enamel insulation thickness evenness.

3 dwg