Cadmium Substitution - garteur
Cadmium Substitution - garteur
Cadmium Substitution - garteur
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GARTEUR LIMITED<br />
1 Dry grit blast with fine alumina 180-220 mesh<br />
2 Anodically cleaned<br />
3 Electroplating in Zincrolyte NCZ CF<br />
Voltage ~2.8V<br />
Current density ~2.5A/dm 2<br />
Plating time 35 minutes<br />
4 Passivation in Udyfin 7748<br />
Concentration 30ml/litre<br />
pH 1.6<br />
Immersion time 35-40 seconds<br />
Table A3; Zinc-cobalt-iron electroplating schedule<br />
Chemical<br />
Concentration<br />
(gm/litre)<br />
Ammonium chloride 171.5<br />
Nickel chloride 73.8<br />
Zinc chloride 16.7<br />
Boric acid 20.3<br />
BOE-NIZ LHE 30.3<br />
Table A4; Composition of CorroBan ® zinc-nickel<br />
electroplating bath<br />
GARTEUR SM/AG17 TP128 Page 43
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