Hi guys, any thoughts on this:
my binzel MB36 torch seems to be overheating while being used for, say, a minutes continuous welding at around 275 amps.
That sounds well within the spec of the torch, but it smokes furiously when I finish the bead & the copper contact tip turns black / liquidy, like its bleeding tar or something!
Despite having burnback control set to maximum the wire often melts onto the contact tip too.
Is it WAY over the top to expect 0.8mm wire to be ok at this setting?
Could a slightly undersize earth lead be causing any of this? (That is smoking too as the insulation melts at the work clamp end).
Its on a migatronic Dynamig 405, 0.8 mild steel filler, and I'm making do with argoshield light until its used up. Welding 20mm plate.
Thanks, Al.
my binzel MB36 torch seems to be overheating while being used for, say, a minutes continuous welding at around 275 amps.
That sounds well within the spec of the torch, but it smokes furiously when I finish the bead & the copper contact tip turns black / liquidy, like its bleeding tar or something!
Despite having burnback control set to maximum the wire often melts onto the contact tip too.
Is it WAY over the top to expect 0.8mm wire to be ok at this setting?
Could a slightly undersize earth lead be causing any of this? (That is smoking too as the insulation melts at the work clamp end).
Its on a migatronic Dynamig 405, 0.8 mild steel filler, and I'm making do with argoshield light until its used up. Welding 20mm plate.
Thanks, Al.