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PATON
®
PSI STANDARD SERIES DC MIG/MAG TIG/MMA
If required, perform the additional functions specified for the manual arc welding process (see Section 6.1).
ATTENTION!
Do not sharpen the electrode tip to a needle-like shape, as such a
shape can cause deviation of a welding arc from side to side. The properly
sharpened electrode tip should have a slightly blunted end with a diameter
corresponding to the specified welding current. In welding with a large welding
current, the high-sharpened electrode easily melts due to insufficient heat
dissipation. The sharpening marks should be arranged along the electrode
centerline.
ATTENTION!
Argon torch should be of valve type, with bayonet socket of 9
mm for (PSI 160 STANDARD) and 13mm for (PSI 200 /, PSI 250 STANDARD)
in diameter. Choose the maximum torch flow according to your working
requirements.
4.2 ARGON ARC WELDING PROCESS WITH TIG FUNCTION
The procedure for changing the values of the operational parameters of the welding unit is described in Section
6.1.
4.3. TIG-LIFT CONTACT ARC-STARTING FUNCTION
This function of the control button on the welding torch is set by default and is designed for welding
torches with contact arc starting, without using oscillators and other like devices. In contrast to
conventional methods of arc starting, the contact arc starting prevents the formation of current surge at the
instant of the arc starting. As a result, disintegration of the no consumable tungsten electrode and ingress
of the electrode particles into the weld can be prevented.
ATTENTION! Requires cleaning of the welded material at the place of the arc.
When this function has been activated, contact the electrode with the workpiece. It is allowed to hold the
electrode in this position for an unlimited length of time. When the operator is ready welding (for
example, when the operator has lowered the protective shield and purged the weld area with gas), it is
necessary to lift the electrode tip slowly from the workpiece. The welding unit will sense this action as a
signal to start welding, and the welding current will be linearly increased to the set value. To prevent
surface melting of the electrode tip, the rate of lifting the electrode should correspond to the set welding
current value. The period
[TIME UP ARC]
of linear current rise is discussed
in Section 4.6
.
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Summary of Contents for PSI 160 Standard
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