Cataphoresis

The cataphoresis or the cation electrodeposition is a technique of industrial painting, employed in particular in the Auto industry.

Technical principle

Cataphoresis is a technique of painting which consists in immersing the part in a bath of water-soluble painting, by putting the part in Cathode (from where the name of cataphoresis), and while making migrate the particles of paintings in suspension in the bath by means of electric current, from the anode towards cathode. The particles of painting settle then uniformly and on all the surface of the immersed part. The part (or the bath) is slightly agitated during the operation which lasts only a few minutes. Then, painting is cooked with the furnace.

Advantages of this method

  • All the surface of the part is covered, even the hollow and hidden parts, as well as the arrises (contrary to painting the gun electrostatic).
  • the layer is fine and regular, approximately 20 micrometers against 70 micrometers for painting the gun. This smoothness makes it possible to paint threadings without the butcher.
  • the homogeneity of the layer confers an excellent behavior on corrosion and a good layer of hangs for a primary education.

See too

Random links:1006 | Roberto Koch | Roost-Warendin | Gasteromycetideae | Circarama the USA | Sola gratia, sola fide, sola will scriptura, solus Christus | Banlieue_noire_de_Tittabawassee,_Michigan