WORKPIECE HAVING GLOSSY COATING LAYER
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
May 8, 2012
filing date -
Apr 20, 2012
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Abandoned
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Abstract
A workpiece has a glossy coating layer disposed thereon. A barrel plating device is electrified with an alternating current, which has a voltage between 1V and 100V, a current density between 0.02 A/dm2 and 50 A/dm2, and a frequency between 1 Hz to 60 KHz. The alternating current is rectified by a low ripple DC rectifier into a direct current whose ripple coefficient is between 0.3% and 26%. Thereby, a surface of the workpiece is electroplated with the glossy coating layer, which contributes to a glossy and even effect on the surface of the workpiece.
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