STAMOS S-ALU 220 Manual De Instrucciones página 15

START CURRENT = initial current. It acts only with switched
Start
on 4T function. This function is used for adjusting the initial
4
current in order to properly initiate electric arc.10-220 A
PEAK CURRENT. This function acts only at switched on pulsa-
Pulse
tion It is used for switching the current between main current
5
(CURRENT) and low current during pulsation welding.
10-220 A
Base
BASE CURRENT = arc supporting current in PULSE mode.
6
10-220 A
FINAL CURRENT = It acts only with switched on 4T function.
Final
7
This function is used to select proper end current of welding in
order to extract the fusion weld properly.
10-220 A
PULSE FREQUENCY = this function means the frequency in
8
time unit (for impulse welding)
0,5-5 Hz
DUTY CYCLE = pulse fulfilment; the ratio of the pulse time
9
duration to the pulse period.
10-90%
POST GAS = gas access time after the decay of the electric arc
10
is adjusted in second intervals. The adjusting function for this
time value is significant for the fused fusion weld which has to
be cooled and protected against oxidation after finishing the
welding process. 1-10 s
CLEAN WIDTH = percentage difference of the time between
11 positive and negative current direction in one welding current
period -5 / +5
28
EN
Rev. 28.04.2022
WIG/TIG = in opposition to the metals welding in MIG/MAG
gas curtain, during welding with WIG method, the electric arc
12
appears between the infusible wolframic electrode and the
welded material. For the protection of the wolframic electrode
and the fusion weld, the neutral gases as argon or helium or
non-oxidizable gas mixtures are used. Welding with WIG me-
thod may be used for all welded metals. Selection of the type
of current, polarization and curtain gas depends on the welded
metal type. This device uses the welding handle (burner) – WIG,
which is equipped with the wolframic electrode, argon curtain
gas release nozzle and the fluxing agent, depending on the wel-
ded material. Our welding technology specialists recommend
red wolframic electrodes for steel and precious steel, green
ones for aluminum, black ones for steel and cast iron, gold and
grey ones for universal applications. Depending on the metal
plate thickness, the following wolframic electrodes are recom-
mended:
thin metal plate 0.5-1 mm
metal plate, thickness of 1-6mm
thick metal plate - 6 mm
= electrode 1.6 mm = electrode 2.4 mm = electrode 3.2 mm
In case of gas nozzles we recommend the size of 7 in within the
area of universal applications and size of 5 within the area of
precise welding.
MMA = electric arc welding (E-Hand/MMA) is one of the ear-
liest methods of metal objects welding; it is also in use nowa-
days. Welding energy is generated by the electric arc between
the consumable electrode and welded element.
AC/DC = while using inverter, it is possible to weld with direct
current (DC) or alternate current (AC). Thanks to this, the
13
machine may weld almost every metal. The alternate current
is used for welding light metals (as aluminum or titanium). For
welding most of other metals (as constructional steel and free-
machining steel) we use direct current.
"4T/2T" selection button: Selecting "4T/2T" procedure func-
14
tions, TIG welding divides into "2T" action (non-self lock) and
"4T" action (self lock)
Rev. 28.04.2022
EN
29