Plating Rectifiers
Rectifier stack assembly made up for sturdy liberty rated silicon diode connected in a six phase double star circuit. The diode are mounted on a cooling fan to dissipate the heat and thus increasing the rating of the diode. Necessary numbers of diodes are connected in parallel depends upon the output current rating.
Accepted standard rectifier for different purpose :
- 8 volts for majority of electroplating and cleaning processes.
- 12 volts of hard chromium plating, cleaning and barrel plating applications.
- 16 volts for fully immersed barrels.
- 20 volts to 60 volts for sulfuric acid process and chromic acid process of anodizing.
- Single phase rectifier units are not suitable for chromium plating as the ripple content is at about 48 % and hence will not be smooth deposition of chrome.