COATING SYSTEM AND METHOD FOR E-COATING AND DEGASIFICATION OF E-COAT FLUID DURING E-COAT
摘要:
A coating system includes an electrocoat (e-coat) bath having an e-coat fluid with a first amount of dissolved gases, a plurality of ultrasonic transducers mounted on at least two sides of the e-coat bath, a carrier frame and control circuitry. The control circuitry is configured to control a trajectory of a metal part dipped in the e-coat bath using the carrier frame, control the plurality of ultrasonic transducers to direct a plurality of acoustic waves at a defined ultrasonic operating frequency and at a first intensity to cause a plurality of localized pressure drops in the e-coat fluid, the first amount of dissolved gases is reduced or removed as bubbles from the e-coat fluid of the e-coat bath based on the directed plurality of acoustic waves, and increase the first intensity of the directed plurality of acoustic waves over a defined time period to accelerate dispersion of an e-coat pigment.
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