METHOD OF PREPARATION OF THE SURFACE OF THE WIRE MADE OUT OF ALUMINUM ALLOY WITH RARE-EARTH METALS Russian patent published in 2008 - IPC C23G1/12 C23F1/20 

FIELD: chemical industry; other industries; methods of preparation of the surface of the wire made out of aluminum alloy with the rare earth metals.

SUBSTANCE: invention is pertaining to preliminary preparation of the surfaces of articles before direct deposition of galvanic coatings. The method switches operations of degreasing, flushing, etching treatment of the surface of the wire without application of the electric current, after-flushing. At that for increasing the strength of cohesion of the electroplated coating with the basis the etching is exercised in the solution containing 30-35 percent sulfuric acid and the washing agent "Progress" in amount of 0.1-0.3 g/l. At that the etching treatment is conducted at the temperature of 18-25°С.

EFFECT: invention ensures the increased strength of cohesion of the electroplated coating with the basis.

1 tbl, 1 ex