br black chromium plating process
2017-12-15
code：br
name：br black chromium plating process
1.produces an attractive appearance and shows excellent corrosion
resistance. it is adapted for decorative plating.
2.excellent heat-resistant, can be adapted for heat-resistant products.
3.reduces reflectivity by 95% in comparison with white chromium plating. it is
adapted for optical industry.
4.can be direct plating on steel, copper, nickel, stainless steel, chrome basis
and aluminum which need to be alumseal 402 zincating prior to plating.
5.post-treated by oil, soak, or clear paint can improve the brightness and
protect the deposits.
make-up: br-76 blackener 30-42ml/l, br-77 accelerator 4-12ml/l.
consumption: add 3-6ml/l br-76 blackener when the deposits is not black enough or blue-brownish in hcd, add 1-2ml br-77 accelerator when covering power is poor.
