|
|
Characteristics of "NIPRON-924" |
|
Non hexavalent Chromate treatment, high corrosion resistance deposition film. |
|
Sulfur addition agent isnft being used. |
|
Tarnishing resistance and Corrosion resistance of a
deposition film was improved remarkably |
|
Deposition speed 18 - 20µm/H are continued steadily in a long time. |
|
Cost is reduced and can be adjusted with sodium hydroxide. |
|
By raising the dissolution of the hydroxide,
rough and the growth of the pit were improved. |
|
|
|
|
Neutral salt spray test 24 hours
Deposition thickness 5µm |
No discoloration. |
Black discolors |
Nitric acid 7% Dipping time15minutes
Deposition thickness 5µm |
|
KPC-2003 Chromium free discoloration prevention agent
for Electroless Nickel |
|
|
|
Copyright Kinzoku kako Gijyutsu Kenkyusyo
Co., Ltd 2005 All rights reserved. |
|