ALIEN WELD XM250 Instrukcja obsługi - Strona 12
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5.1 operation
5.1.1 Open the power switch of machine. Open the valve of the gas bottle and adjust the gas flow
5.1.2 According to the wire diameter, select related diameter of MIG torch contact tip, then select corresponding welding
parameter by pressing the "8" button on the control panel, by pressing the "6" button to select welding mode at the meantime.
5.1.3 According to thickness and process of workpiece, adjust the voltage and the current. Select the "synergy" or "separate"
function by pressing the "8" button on the control panel.
5.1.4 "Inductance adjustment" (1) can change the ARC
5.1.5 Begin to weld by pressing the switch on the MIG torch
5.2 setting the welding current
The selection of welding current, voltage and ARC will influence the stability, welding quality and the productivity during the
welding process. In order to keep a good welding quality, the welding current should match the voltage and the ARC well.
Select the wire diameter according to the globular transfer and the production requirement.
Refer to the below list, choose the common welding current, ARC and voltage.
Wireφ(mm)
0.6
0.8
1.0
1.2
1.6
5.3-The option of the welding speed
The welding quality and productivity should be taken into consideration for the option of welding speed. In case that the welding
speed increases, it weakens the protection efficiency and speeds up the cooling process. As a consequence, it is not optimal for the
seaming. If the speed is too slow, the work piece will be easily damaged, and the seaming is not ideal. In practical operation, the
welding speed should not exceed 30m/hour.
5.4 he length of wire stretching out
The increase of the length of the solder length, the melting depth, the melting of the wire and the increase of the productivity;
But the dry elongation passes large, the welding wire is easy to fuse, the splash is serious, make the welding process
unsteady. Generally, take the diameter of the wire 10-15 times long.
5.5 The setting of the C0
flow volume
2
The protection efficiency is the primary consideration. Besides, inner-angle welding has better protection efficiency than
external-angel welding. For the main parameter, refer to the following figure.
Welding mode
C0
（L/min）
2
5.OPERATION
Range of welding current and voltage in CO
Short circuit transition
Current（A）
Voltage (V)
40~70
17~19
60~100
18~19
80~120
18~21
100~150
19~23
140~200
20~24
Option of C0
Thin wire C0
welding
2
5～15
welding
2
Granular transition
Current（A）
160~400
200~500
200~600
300~700
500~800
flow volume
2
Thick wire, big current
Thick wire C0
welding
2
15～25
Voltage (V)
25~38
26~40
27~40
28~42
32~44
C0
welding
2
25～50
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