This describes the plating process for silver plating on industrial and electrical items.
The work to be done is specified by the customer. In some cases this may include refacing of contact surfaces. The thickness of the plating to be done is specified in microns.
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Step 1
Total surface area to be plated is measured. Plating time is then calculated according to area and thickness of plating required. |
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Step 2
Items are cleaned mechanically by polishing or chemically
by immersion into acids to remove grease and oxides etc. |
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Step 3
Items to be plated are wired onto racks or hooks. |
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Step 4
Rack/s are placed in first cleaner tank for approximately 10 minutes. |
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Step 5
Items are rinsed in second and third rinse tanks. |
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Step 6
Items are placed into dry acid tank for further cleaning for approximately 10 minutes. |
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Step 7
Items are rinsed in acid rinse tanks. |
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Step 8
Items are placed in silver strike tank. This gives a thin
coating of silver very quickly. |
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Step 9
Items are placed in silver tank and connected to the rectifier which is set to the current and duration as previously calculated. |
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Step 10
Items are rinsed in the 3 silver rinse tanks |
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Step 11
Items are blow dried with compressed air, put into heater cabinet or left to dry naturally depending on conditions. |
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Step 12
Items are removed from the racks and packed according to customer requirements or transport conditions. |