Paton MINI, Руководство пользователя, Страница: 48 / 55

PATON ECO DC MMA
- 48 -
ATTENTION: Once the power switch 3 is set to position "I", the stick electrode
becomes energized. Do not touch conductive or earthed objects, such as, for
example, welding machine frame etc., with the electrode.
3.1 HOT START FUNCTION
Advantages:
- improved striking even when using electrodes with bad striking properties;
- better penetration of base material during striking and, consequently, less
poor penetrations;
- prevention of slag inclusions.
The result is achieved by the following means:
In the moment of arc striking, arc current increases by 33% of the set arc current
value for a short time (Fig. 3).
Example: welding with an electrode of
Ø 3 mm in diameter. Arc
current value, which is set using the controller, is 90 A. Hot start
current is 90 A + 33% = 120 A.
3.2 ARC FORCE FUNCTION
Advantages:
-
enhanced short ‐ arc welding stability;
-
better transfer of metal drops into the weld pool;
-
better arc striking;
-
reduced risk of electrode sticking.
The result is achieved by the following means:
Due to reduction of arc voltage below the minimum permissible voltage of
stable arc burning, arc current increases by 30% of the set value (Fig. 4).
Fig. 3. HOT START function