Setup of your new general purpose electropolishing line can be achieved using the same equipment typically used in electroplating processes: acid proof tank, DC power source, conductive rack for hanging/dipping work pieces, and rinse stations. When electropolishing, the work piece is anode. Polishing begins once work piece is submerged in solution tank containing cathode, and charge applied. Use dedicated cathode plates of suitable material as detailed in Electro-Glo technical data bulletin.
Fine medical, electronic and other complex electropolished parts require development by the user in both fixture design and cathode placement. With proper setup and operator experience, irregular shapes and interior structures including tubing, deep drawn, and spun parts can be polished to a high degree of accuracy.
Electro-Glo products are full-to partial sludging, which contributes to their long life. Replenishment required only to the extent of depletion caused by drag-out, and periodic removal of settled sludge. An exception to this would be if unusually long polishing cycles were consistently being performed. Sludge and some solution should be removed and disposed regularly. To remove sludge, transfer tank contents to a temporary holding tank, taking care not to disturb the settled sludge. Scrape out and properly dispose of sludge. Clean cathodes, replace original solution and add new solution as needed.
Electropolish and passivation of large tank interiors can be achieved with less solution quantities by laying tank on its side, adding as much solution as practical, polishing, and rotating repeatedly. A custom-made cathode may be required to accommodate the tanks particular size while tank itself is made anodic. If solution is heated during polishing each polishing section may be completed in a matter of minutes.