53
Poor welding properties
Cause: Turbulence caused by too high a rate of shielding gas flow
Remedy: Reduce amount of shielding gas,
recommended shielding gas quantity (l/min) = wire diameter (mm) x 10
(e.g. 16 l/min for 1.6 mm filler wire)
Cause: Too large a distance between the welding torch and the workpiece.
Remedy: Reduce the distance between the welding torch and the workpiece (recommended: 10-15 mm)
Cause: Tilt angle of the welding torch is too great
Remedy: Reduce the tilt angle of the welding torch
Cause: Wirefeed components have incorrect diameter
Remedy: Use wirefeed components with correct diameter
Poor wirefeed
Cause: The braking force has been set too high
Remedy: Reduce the braking force
Cause: Hole in the contact tube is displaced
Remedy: Change the contact tube
Cause: Faulty wire feed liner in torch
Remedy: Check the wire feed liner for kinks, dirt, etc.
Cause: The wirefeed rollers are not suitable for the filler wire being used
Remedy: Use suitable wirefeed rollers
Cause: Feed rollers have the wrong contact pressure
Remedy: Adjust the contact pressure
Cause: The wirefeed rollers are soiled or damaged
Remedy: Clean the wirefeed rollers or exchange them for new ones
Cause: Inner liner wrongly laid or kinked
Remedy: Replace inner liner
Cause: Inner liner or wire inlet nozzle wrongly dimensioned
Remedy: Ensure inner liner or wire inlet nozzle are correctly dimensioned
Cause: Inner liner was kinked while being inserted
Remedy: When inserting the inner liner, only handle it around the infeed tube
Cause: AlSi filler wire: Filler wire damaged by the bronze insert
Remedy: Teflon liner must reach the contact tube
Cause: The inner liner has been cut too short
Remedy: Replace the inner liner and cut it to the correct length
Cause: Welding wire worn due to overly heavy contact pressure at the feed rollers
Remedy: Reduce contact pressure at the feed rollers
Cause: Filler wire contains impurities / corroded
Remedy: Use high-quality filler wire with no impurities
Cause: Welding spatter in the gas nozzle
Remedy: Remove welding spatter
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