| 摘要 |
FIELD: metallurgy.SUBSTANCE: method involves anodic oxidation in water solution containing orthophosphoric and sulphuric acids, application of coating by electric precipitation from sulphate coppering electrolyte; at that, anodic oxidation is performed at anodic current density of 1-2 A/dm, and prior to application of coating by electric precipitation, interlayer from the solution with the following component ratio is applied, g/l: 5-aqueous copper sulphate 200-250, sulphuric acid 50-70, hydrofluoric acid 10-15, water is the rest, during 2-3 minutes at room temperature and cathodic current density of 1-2 A/dm.EFFECT: reduction of power consumption at high quality of the coating.1 tbl, 3 ex |
