Rectifying faults
Customer checklist
099-000124-EW501
29.07.2011
65
Unstable arc
a
Material inclusions in the tungsten electrode due to contact with filler material or workpiece
#
Regrind or replace the tungsten electrode
a
Incompatible parameter settings
#
Check settings and correct if necessary
Pore formation
a
Inadequate or missing gas shielding
#
Check shielding gas setting and replace shielding gas cylinder if necessary
#
Shield welding site with protective screens (draughts affect the welding result)
#
Use gas diffuser for aluminium applications and high-alloy steels
a
Unsuitable or worn welding torch equipment
#
Check size of gas nozzle and replace if necessary
a
Condensation (hydrogen) in the gas tube
#
Rinse hose package with gas or replace
