Fronius AccuPocket 150/400 TIG, Руководство по эксплуатации

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TIG modes
Symbols and
their explana-
tions
Pull back and hold the torch trigger
Release the torch trigger forwards
Push forward and hold the torch trigger
Release the torch trigger backwards
Adjustable parameters:
- GPo:
Gas post-flow time
- I-S:
Starting-current phase - the temperature is raised gently at low welding
current, so that the filler metal can be positioned correctly
- I-E:
Final current phase - to prevent crater cracks or cavitations
- I-1:
Main current phase (welding-current phase) - uniform thermal input into
the base material, whose temperature is raised by the continuous heat
- I-2:
Reduced current phase - intermediate lowering of the welding current in
order to prevent any local overheating of the base material
Fixed parameters:
- GPr: Gas pre-flow time
- t
up
: UpSlope phase - the welding current is continually increased
Duration = 0.5 seconds
- t
down
: DownSlope phase - the welding current is continually decreased
Duration = 0.5 seconds
- t
S
:
Starting current duration
- t
E
: Final current duration
2-step mode
See the section on page for details on how to activate 2-step mode.
I
t
I-1
GPo GPr
1 2 3
t
down
t
up
1
Place the tungsten electrode onto the workpiece and then pull the torch trig-
ger back and hold => shielding gas flows
2
Raise the tungsten electrode => arc ignites
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