GYS KRONOS 250M Betriebsanleitung Seite 26

User manual
RECOMMENDED COMBINATIONS
(mm)
0.3 - 3
2.4 - 6
4 - 8
6.8 - 8.8
9 - 12
PROCESS SETTINGS
Settings
Welding process
Trigger mode
Access to some of the welding parameters depends on the selected display mode: Settings/Display mode: Easy or Expert. Refer to the HMI ma-
nual.
SETTINGS
• Standard
The standard DC TIG welding process allows high quality welding on most ferrous materials such as steel and stainless steel, but also copper and its
alloys including titanium. The various current and gas management possibilities allow you to perfectly control your welding operation, from priming to
the final cooling of your weld seam.
• Pulse
This pulsed current welding mode combines high current pulses (I = welding pulses) with low current pulses (cold I, workpiece cooling pulses). The
pulsed mode allows parts to be assembled while limiting temperature rises and warping. Ideal for on site use.
Example:
The welding current (I) is set to 100 A and % (cold I) = 50%, i.e. cold current = 50% x 100 A = 50.
F(Hz) is set to 10 Hz, the signal period will be 1/10 Hz = 100 ms -> a 100 A pulse every 100 ms then followed by another at 50 A.
• Spot
This welding mode allows the pre-assembly of parts before welding. Spot welding can be done manually using the trigger or timed with a predefined
spot welding period. Spot welding allows for better reproduction and non-oxidised weld points.
• Spot-Pulse
This method of welding is used to pre-assemble thin sheet metal workpieces prior to the actual welding process. Spot welding can be done manually
using the trigger or timed with a predefined spot welding period. Spot welding allows for better reproduction and non-oxidised weld points.
CHOOSING THE ELECTRODE'S DIAMETER
Electrode Ø (mm)
1
1.6
2
2.5
3.2
26
Translation of the original
instructions
Current (A)
3 - 75
60 - 150
100 - 200
170 - 250
225 - 300
Settings
Standard Smooth current
Pulsed Pulsed current
Spot welding Smooth tacking
Spot-Pulse Pulsed tacking
2T, 4T, Valve Choice of trigger welding management mode.
Pure tungsten
130 > 230
160 > 310
Ø Electrode (mm)
1
1.6
2
2.4
3.2
DC TIG
10 > 75
60 > 150
75 > 180
Approx. = 80 A per mm Ø
Ø Nozzle (mm) Argon flow rate (L/min)
6.5
8
9.5
11
12.5
Tungsten with oxides
10 > 75
60 > 150
100 > 200
170 > 250
225 > 330
KRONOS 250M
6 - 7
6 - 7
7 - 8
8 - 9
9 - 10