27
H03
Anti-stick function
OFF/ON
――
ON
Table 4-4-2: Sub-menu parameters for STICK
Hot start function
Setting hot start function includes adjusting hot start current and hot start time (please
refer to “Sub-menu parameters for stick” as follows)
Advantages:
-
Improve ignition, even when using electrodes with poor ignition properties
-
Better fusion of the base metal in the start-up phase, meaning fewer cold crack
defects
-
Greatly prevents slag inclusions
During the specified hot arc-starting time (H02), the welding current is increased to a
certain value. This value (H01) is 1-100% higher than the preset welding current.
Graphic symbol I
W
………Preset welding current
Fig. 4-4-2: Graphic symbol
As shown in Fig. 4-4-2, welding current is set as 100A. Hot arc-starting current (H01) is
50%. During the hot arc-starting time (H02, such as 0.5s), the actual welding current is
100A+ (50% of 100A)=150A.
Anti-stick function
In ON mode, power source has anti-stick function automatically. (Please refer to the
below “sub-menu parameters setting” for specific method).
As the arc becomes shorter, the welding voltage may drop too much that the electrode
will “stick”. This may also cause “burn-out” of the electrode.
Electrode burn-out can be prevented if the anti-stick function is activated. If the electrode
begins to stick, the power source will immediately cut the welding current off. After the
electrode has been detached from the workpiece, welding can be continued without