D) Ac/Dc Settings On The Surfox Machine; E) Welds That Cannot Be Cleaned - Walter Surface Technologies SURFOX 205 Manual De Usario

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Safety features
Safety features

D) AC/DC settings on the SURFOX machine

Example of cleaning and passivation with SURFOX in
AC mode:
Microscopic view of the material.
BEFORE
Oxide
layer to be
removed
Example of cleaning and passivation with SURFOX in
DC mode:
Microscopic view of the material.
BEFORE
Oxide
layer to be
removed
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AFTER
Cleaning and
passivation is perfect.
Cleans every crack in
the material.
AFTER
Cleaning and
passivation is perfect.
Cleans every crack in
the material.
Alteration of
the material
due to the
DC setting.

E) Welds that cannot be cleaned

If the area around the weld is black (not blue) from contami-
nation, this is a problem of high heat generated during the
welding process. The contaminated areas do not conduct
electricity. If there is no conductivity in the material, the
SURFOX system cannot work.
If there are two welds on top of the other, the structure of
the material has been seriously altered. These areas may
not be cleaned.
The quality of the weld is critical. The better the weld, the
easier it will be to clean.