Method of distributing current in electrodeposition process
AssigneeS & J Technologies, LLC
InventorsSammy Lee Adkisson, Samual Adam Adkisson, John Bougneit, Dale Lee Hughes
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Abstract
A method is provided for electrodepositing a coating a conductive workpiece. The method provides for individually switching on or off electrodes both interior to and exterior to the workpiece so as to control the deposition of the coating material on the interior surface and the exterior surface of the workpiece. Further, an electrode having insulating positioners can be utilized to provide for better centering of the electrode in the interior of the workpiece.
Claims8
A computer implemented method of controlling coating of a workpiece with a coating material in an electrodeposition process comprising:
- (a) accessing a recipe for the coating of the workpiece;
- (b) controlling the coating of the workpiece in accordance with the predetermined recipe by switching on or off current to a set of electrodes through a switching system providing individual switching of each of the electrodes and by controlling current and voltage output of a rectifier supplying power to the electrodes;
- (c) monitoring current flow within the electrodeposition process and switching on or off a portion of the electrodes to compensate for non-linear coating deposition rates;
- and
- (d) terminating the electrodeposition process based on predetermined criteria.
Dependencies are inferred from the claim text.