TECHNIQUE OF CHEMICAL PLATING MADE FROM ALLOY NICKEL-COPPER-PHOSPHORUS Russian patent published in 2009 - IPC C23C18/50 

FIELD: metallurgy.

SUBSTANCE: invention concerns chemical metallisation. Particularly it concerns alloy based on nickel and can be used in mechanical engineering and instrument making. Method includes chemical plating made from alloy nickel-copper-phosphorus from water solution, containing, mole/l: nickel salt 0.075-0.125, copper salt 0.0008-0.0016, sodium hypophosphite 0.28-0.40, malonic acid 0.10-0.20, succinic acid 0.08-0.12, aminoacetic acid 0.07-0.25, lead salt (0.6-1.2)·10^-5. Received chemical coatings from alloy nickel-copper-phosphorus allows low content of copper (not more than 2 wt %) and stable compound, and method provides increasing of plating speed, increasing of work load density, increasing of decorative coat corrosion stability.

EFFECT: increasing of plating speed, increasing of work load density, increasing of decorative coat corrosion stability.

3 cl, 8 ex