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Generality
The possible use of electrophoretic painting by dipping is multiple.
Particularly in the automobile industry, was the application of
this surface protection promoted.
Through the particular quality of this procedure, all surfaces
at the work piece are regular painted, also cavities as well capillary
openings with overlaps. Through it, this painting application, offers
an excellent corrosion protection.
Salt fog and environmental tests in the test chamber, bring substantially
best values in comparison to the conventional painting. Special
advantages lie with the environmental protection, in the thrifty
lacquer consumption, in the reproducibility, and at the end in an
advantageous price to performance ratio.
Application
The procedure finds application as:
Technical
procedure
The cathode (KTL) dipping
varnishing is a paint
method that resembles
strongly the principle of the galvanic processing. In the watery
lacquer bath, the work piece is connected by cathodes to the direct
current. Under tension, the colloidal lacquer parts hike to the
work piece, and settle after taken place electro-osmotic process,
water-insoluble and very even.
In the subsequent oven, the applied lacquer coating is baked.
Maximum
dimensions of the pieces H 750mm L 450mm D 350mm
Qualitative standard
Resistance to
corrosion, 28 days of alternate climate in the chamber for dry
corrosion test according to DIN 50017
250 hours salt spray test in the salt spray chamber according to DIN 50021
Liability of the lacquer coating by grid slice test according to DIN 53151
type 295
Overpainted according to DIN 53221 paragraph 6.3.1
Coating thickness measurements at 3-4 positions at the work piece
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