Automatic Welding Machine
9
– By touching the electrode back to back and pulling it up;
– By striking the end of the electrode like a match on the surface of the product.
Attention!
Do not knock the electrode on the working surface when trying to ignite the arc, as
this can damage it and further complicate the ignition of the arc.
6. As soon as the arc strikes, the electrode must be held at such a distance from the workpiece
that corresponds to the diameter of the electrode. To obtain a uniform seam, it is further neces-
sary to maintain this distance as constant as possible. It should also be remembered that the
inclination of the electrode axis should be approximately 20-30 degrees, for better visual control
of the welding seam guidance.
7. When
fi
nishing the weld, pull the electrode back a little to
fi
ll the welding crater, and then lift it
up sharply until the arc disappears.
Welding parameter tables (for reference only)
Thickness
metal,mm
Recommended wire diameter, mm
Solid wire
Flux wire
0,6
0,8
0,9
1,0
0,8
0,9
1,2
0,6
+
0,75
+
+
+
0,9
+
+
+
+
1,0
+
+
+
+
+
1,2
+
+
+
+
+
1,9
+
+
+
+
+
+
3,0
+
+
+
+
+
5,0
+
+
+
+
6,0
+
+
+
8,0
+
+
10,0
+
+
12,0
+
+
For high-quality welding of metal with a thickness of 5 mm or more, it is necessary to chamfer
the end edge of the parts at the point of their joining or to weld in several passes.
Gas
fl
ow settings for MIG, MAG welding
Diameter wire,
mm
0,5 – 0,8 1 – 1,4
1,6 – 2
2,5 – 3
Release wire,
mm
7 – 10
7 –14
14 – 20
16 – 20
Consumption
gas, r / min
5 – 8
8 – 16
15 – 20
20 – 30
Parameters of current strength and diameter of electrodes when weld-
ing MMA
Electrode diameter, mm
Welding current, A
Minimum
Maximum
1,6
20
50
2,0
40
80
2,5
60
110
3,2
80
160
4,0
120
200
Weld seam characteristics
Depending on the amperage and speed of the electrode, you can get the following results:
Summary of Contents for PMIG145-C1
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Page 20: ...19 1 2 3 MIG MAG 15 2 2 4 VRD 12 24 VRD VRD MIG MAG...
Page 21: ...20 V U 6 16 GAS...
Page 22: ...21 10 NO GAS...
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