Sweiss SKYARC 2050 FX, Руководство оператора

Страница: 16 / 24

SWEISS
WELD.COM
info@sweissweld.com
OPERATION CONTROL AND CONNECTORS
& T joint.
butt joint lap joint corner joint T joint
§4.5.2 Electrode selection
The electrode diameter selection is based on the work piece thickness, welding
position, joint form, welding layer, etc. Please refer to the following table.
The welding current reference for different electrode diameter
Electrode
1.6 2.0 2.5 3.2
diameter/mm
Welding current/A 25 40 40 60 50 80 100 130
The relation between the welding current(I)’ factor(K) & electrode diameter(d) (I K×d: Carbon electrode)
Electrode
1.6 2 2.5 3.2
diameter/mm
Factor/K 20 25
～
30 30 40
25
～ ～ ～
～
Notice: the above parameters originate from Welding Dictionary P66
～
P67,
Volume 1 of Edition 2.
～ ～ ～
Electrode should be drying according to user manual before using. For
reducing the hydrogen of the molten pool and welding seam, and avoiding
the blowhole and cold crack.
In the welding process, the arc must not be too long; otherwise, it will
cause unstable arc burning, large spatter, light penetration, undercut,
blowhole, etc. If the arc is too short, it will cause electrode stick.
In MMA welding the arc length is usually equal to 0.5~1.0 time of the
electrode diameter. The basic electrode’s arc length is not beyond the
electrode diameter, it’s better to choose the short arc welding; the acid
electrode’s arc length is equal to the electrode diameter.
13