METHOD OF APPLYING SMOOTH GALVANIC IRON COATINGS IN A FLOW ELECTROLYTE WITH COARSE DISPERSED PARTICLES Russian patent published in 2019 - IPC C25D15/00 

FIELD: technological processes.

SUBSTANCE: invention relates to electroplating and can be used for recovery of worn-out steel parts. Method involves placing a recoverable part and a soluble anode in an electrolytic cell, connecting them to a current source with density of more than 1 kA/dm², pumping through electrolytic cell of electrolyte containing solid dispersed particles with size of 100–300 mcm, at heterophase flow rate of 9–11 m/s, wherein solid dispersed particles with size of 1–10 mcm are additionally introduced into electrolyte, wherein electrolyte containing sulfuric acid is used, with following ratio of components, g/l: iron chlorine FeCl₂⋅4H₂O 380–420, hydrochloric acid HCl pH = 0.8–1.0, sulfuric acid H₂SO₄ 1–3.

EFFECT: increasing maximum thickness of smooth coatings.

1 cl