We have a new problem with our cut quality. Even though we put a whole new set of electrodes etc, then aften the first cut/pierce the nozzle gets damaged. To me it looks like that the ignition is to strong and melts the nozzle. After looking at the plasma arc through a welding helmet I can see that as illustrated on one of the pictures the arc gets bend of course, because of the nozzle getting damaged after pierce. This a 1.5mm nozzle on a 3mm s235 steel plate, running at 85amps. We tired with a 2.1mm nozzle and it does not get damaged after the first pierce but you can clearly see the ignition marks on the nozzle side.
With our little knowlegde we think that I may be to much start amperage but we can not adjust it on the machine or unit...
Any ideas on what the problem could be? Because we have become blinded with thinking about it
Best regards
Daniel and Lauri from Denmark