20
Thereisgasandcurrent
outputwhenpushtorch
trigger,butnowire
feed.
·wornwirefeedercontrolcable
·stuckwirefeeder
·failureonwirefeeder
·failedmachinecontrolboard.
·replaceorfixthewornwirefeeder
controlcable.
·makesurewirefeederisnotstuck
·fixwirefeeder
·replacecontrolboard
Weldingcurrentis
unstable
·inappropriatewirefeedermomentknob
adjustment
·unmatchedwirefeedrollsandwiresize
·seriouslyworncontacttip
·seriouslywornwireguidetubeinthe
torch
·poorqualitywire
·pleaseadjustthesuitablewirefeeder
momentforce
·pleasemakesurewirefeedrollsand
wirematch
·replacetorchcontacttip
·replacethetorch
’
swireguidetube
·changeabetterqualitywire
Regulatorheaterisnot
working
·heaterconnectorisnotwellconnected.
·shortedcircuitintheheater
·machineauto-protection·failureheating
applianceinsidetheheater
·connectwelltheheater
·fixheaterelectricwire
·restartthemachinebackpanel
over-currentprotector
·replaceregulator
6
6
6
6.4
.4
.4
.4Welding
Welding
Welding
Weldingprocessing
processing
processing
processingreference
reference
reference
reference
Whenunderstandardweldingconditions,operatorscantakereferenceofthefollowingtablewelding
parameters,includingCO2welding(solidwire),MAGwelding(solidwire,Ar80%+CO220
%)
,fluxed-coredwire,etc.Inactualoperation,userscandosomeadjustmentaccordingtoworkpiece
material,shapeandweldingpositions,etc..iftherearestrictrequirementsonweldingquality,pleaseobtain
thebestweldingprocessingparametersbyexperiments.
Table6-3CO2welding
(
solidwire
)
typeWorkp
iece
thickn
ess(m
m)
Wiredia
Φ(mm)
Rootgap
g(mm)
Welding
current
(
A
)
Welding
voltage
(V)
Welding
speed
(
cm/mi
n
)
Distance
between
contacttip
and
workpiece
(
mm
)
Gasflow
(
L/min
)
Itypebutt
welding
(
low
speed
0.80.8060-7016-16.550-601010
1.00.8075-8517-17.550-601010-15
1.20.8080-9017-1850-601010-15
1.60.8095-10518-1945-501010-15