Cataphoresis or Autophoresis Painting Line
Cataphoresis is a painting technique that involves immersing a piece in a bath of water-soluble paint, placing the piece in the cathode (hence the name cataphoresis), and causing the paint particles suspended in the bath to migrate through an electric current of a certain voltage, from the anode to the cathode. The paint particles then deposit uniformly on practically the entire surface of the immersed piece. The piece (or the bath) is slightly agitated during the operation, which lasts only a few minutes. Afterward, the paint is drained and polymerized in an oven (around 180 °C).
The autophoresis process uses a similar principle but does not require the use of electric current. Its implementation is often somewhat simpler than cataphoresis. Note that in both types of processes, the appearance is very comparable and often serves as a primer for a powder or liquid finishing coat.Depending on the type of parts to be treated, the usable handling systems can range from a simple gantry to an overhead Monorail or Birail conveyor.In France, the number of lines installed each year is very low, and projects are often entrusted to our integrator partners.
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