Toparc RC-HD2 Mode D'emploi page 34

COATED ELECTRODE WELDING (MMA/SMAW)
• MMA/SMAW Standard
This MMA Standard welding mode is suitable for most applications. It can weld all type of electrodes : rutile, basic, cellulosic... and on any material:
steel, stainless steel, cast iron.
Settings Désignation
Percentage of
Hot Start
Hot Start duration
Welding current
Arc Force
• MMA/SMAW Pulse
This MMA Pulse welding mode is useful for applications in the vertical up position (PF). The pulse mode keeps the weld pool cold and eases the transfer
of matter. Without the pulse mode, vertical-up welding requires a difficult «Christmas tree» shape triangular movement. With the MMA Pulsed mode,
this movement is no longer required and a simple straight up movement is enough (depending on the thickness of the workpiece). If however you
wish to widen your weld pool, a simple lateral movement is enough (normal welding movement). In this case the pulse current frequency can be
adjusted on the display. This process allows greater control during vertical-up welding.
Settings Designation
Percentage of Hot
Start
Hot Start duration
Welding current
Cold current/Back-
ground current
Pulse frequency
Arc Force
• Setting the welding intensity
The following settings correspond to the usable current range depending on the type and diameter of the electrode. These ranges are quite large as
they depend on the application and the welding position.
Electrode Ø (mm)
1.6
2.0
2.5
3.15
34 4.0
RC-HD2 RC-HD2
Adjustable
settings
0 - 100 %
The Hot Start generates an overcurrent during the arcing phase to prevent the electrode
from sticking. It is adjustable in intensity (% of welding current) and time (seconds).
0 - 2 secs.
The welding current is adjusted according to the type of electrode chosen (refer to the
10 - Imax.
electrode packaging).
The Arc Force is an overcurrent delivered when the electrode or a drop comes into contact
-10 > +10%
with the weld pool in order to avoid sticking.
Adjustable
settings
0 - 100 %
The Hot Start generates an overcurrent during the arcing phase to prevent the electrode
from sticking. It is adjustable in intensity (% of welding current) and time (seconds).
0 - 2 secs.
The welding current is adjusted according to the type of electrode chosen (refer to the
10 - Imax
electrode packaging).
20 - 80% Second welding current known as "cold".
0.4 - 20 Hz PULSATION frequency of the PULSE mode (Hz)
The Arc Force is an overcurrent delivered when the electrode or a drop comes into contact
-10 > +10%
with the weld pool in order to avoid sticking.
Rutile E6013 (A)
30-60
50-70
60-100
80-150
100-200
Description & advice
Description & advice
Basic E7018 (A)
30-55
50-80
80-110
90-140
125-210
EN
Cellulosic E6010 (A)
-
-
60-75
85-90
120-160