配方类型:

METALS

配方说明:

Black Nickel Plating

配方组成:

Ammonium Sulfate/15
Zinc Sulfate 7H2O/25
Water/To make 100
ph/4.5-5.5
Pot. Sulfocyanate/32
Nickel Sulfate 7H2O/50
Current density/0.1-0.15 amp/sq dm at 20'C.

配制方法:

After plating treat with potassium dichromate (5% solution) at 60'C for 30 minutes.