Weco Discovery 162T, Инструкция по эксплуатации

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WELD THE WORLD
Cod. 006.0001.1940
15/02/2021 V.2.2
Discovery 162T
17
ENGLISH
SLOPE UP
Time during which the current changes from the starting value to the welding value by means of a slope.
This setting is used to avoid damaging the edges of the joint with excessively high current values at the
moment of arc striking. The value of the main welding current is increased gradually in order to control
the uniformity of material deposition and weld penetration.
PULSED CURRENT FREQUENCY
Consequences of a higher value:
- Slower melt speed.
- Reduction of heat-affected zone.
DOWN SLOPE
Time during which the current changes from the welding value to the end value by means of a slope.
FINAL CURRENT
During electrode welding the parameter makes it possible to obtain a uniform deposit of filler material
from the start to the end of the welding process, closing the deposition crater with a current such as to
deposit a final droplet of filler material.
By keeping the torch trigger pressed during the 3rd time, the crater filler current is maintained thereby
ensuring optimal crater filling, until the post gas time is started by releasing the torch trigger (4th time).
POST GAS TIME
Time of post gas delivery when the welding arc is extinguished.
Consequences of a higher value:
- More effective pickling (improved appearance of workpiece at the end of the welding pass).
- Higher gas consumption.
Consequences of a lower value:
- Lower gas consumption.
- Oxidation of electrode tip (more difficult arc strike).
SPOT TIG TIME
When the torch trigger is pressed the welding arc persists for the time set in the parameter.
Press the torch trigger again to resume the welding process.
The arc strike procedure is as follows:
Positioning of the torch with the electrode on the workpiece.
Press the torch trigger and keep it pressed.
Lift the torch slightly.
As soon as the electrode is lifted then the HF ignition starts.
The arc ignites for few hundredths of a second (time can be set up).
The result of this is a very precise, not oxidized welding spot without any plastic deformation of the
sheet.
BASE CURRENT
Pulsed wave minimum current.
Consequences of a higher value:
- Faster creation of weld pool.
- Increase of heat-affected zone.