| 摘要 |
A process, whereas, the wire feed motor of the of twin wire arc spray process, receives its power from the same power circuit that creates the arc spray operation, thereby automatically changing the wire feed rate, as voltage changes occur in the spray process. Thereby maintaining a constant arc gap and consistent atomization to produce a uniform coating with no arc shorting. As the spray operation voltage decreases (attempting to close the wire gap) the wire feed decreases to maintain the wire gap. Conversely, when the voltage increases (attempting to open the wire gap) the wire feed increases to maintain the wire gap. Additionally, an automatic start up process is included in the present invention, a method is implored to reverse the wires at system start up to create a gap between the wires, this allows an arc to generate. With an arc established the feed direction is changed to forward and the spraying process continues, if start up should fail and wires again are touching, the reversing function will repeat until a steady arc is maintained.
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