Metal Finishing Guide Book


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Once the production quantities are determined, then the plating facility must be sized accordingly. The plating tanks must be laid out, and the footprint of all lines and systems measured, with optional floor coating, double containment of the tanks, with catwalk and grating provided. If a manual line is sufficient for the desired production volume, with one or more operators, then it must be determined if an overhead hoist will be needed—and if so, will it be a manual chain hoist, powered trolley with push button, or joy stick variable-speed motorized hoist. If an automatic hoist line is needed, then you'll need to determine precisely how many hoists will be required. Depending on the configuration of the line, there might be parallel lines, side by side, with load, unload at the same end, or load on one end, unload on the other end, and with either wet or dry shuttle transporting the barrels or racks from one side of the line to the other, or a U-shaped return line, and dryer. Automatic solar panel plating line. The PC software must be pro(All images courtesy of CJI Process Systems) grammable in order to allow control of all the process parameters, such as solution operating temperatures; low-level shut off, alarms, auto-fill of tanks; variable or constant current and voltage requirement of the rectifiers; cathodic or anodic; automatic ramp up of voltage for anodizing; historical process data recorded for future records; hoist location, position, and speeds; pumps and filtration operation; air blower pressure; and amp min/hr. Other parameters to consider are chemical dosing, and if any brightener feeders or Phosphate line. chemical feeders are supplied with metering pumps, etc. In order to design the plating line(s) correctly, key items must considered for every single tank in the line. The designer must go through each station or tank, one at a time, to decide which controls or accessories need to be installed on each tank. A manual line would need the same items as an automated line, except the automated line would have either single or multiple programmable hoists, which might be either a monorail type, sidearm, semi-bridge, bridge, or a "rail rider." The hoist positioning might be laser-controlled encoder or manual, with random loading scheduling—or it could be time-way based. The line might be totally enclosed because of either clean room or other environmental circumstances, with the operator working inside the enclosure. All of the tanks must be sized to accommodate the barrels, or racks, with sufficient clearance for the heaters, sensors, coils, pumps, filters, spargers, level controls, 704

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