What has gone wrong ?

[fredkite54]

Hello everyone, recently fitted a new gas cylinder to a MIG welder and it hasn't been good. I am having lots of problems with flow and the tip has seized up - SEE PICTURES.
I am a beginner. Any help and advice is appreciated.

 

[Brad93]

Your voltage is likely too high. You need a new tip now. Cut the wire inside the machine and you will be able to unscrew the tip.

 

[500e]

Don't let go of the wire to the drum when cutting it turns into a rats nest.
Hold the torch wire strait it helps It unscrew easier
YOUR still holding that loose end I hope

 

[tom2207]

if you pull the torch lead out straight you may get away with unscrewing the tip , its half off already ,, new tip and and away you go , adjust the machine ,,, never worry , we all do it from time to time

usually a saturday lunchtime with a full weekend ahead and no spares ,,, wouldnt be the first time Ive buffed the stuck bit off just to keep going.

 

[Morrisman]

Just unscrew it, there's enough spring in the wire to let it rotate a few turns, pull it out a bit, then snip the wire off, fit new tip, and away you go.

 

[MoreWellie]

Cut through half the tip and then unscrew the rest

Edit: Hobby bottle regulators are notoriously bad for getting gas flow and just when you get it right the bottle runs out. If you are planning on welding much then upgrade to a bigger bottle

 

[Erie Fred]

Just unscrew it, there's enough spring in the wire to let it rotate a few turns, pull it out a bit, then snip the wire off, fit new tip, and away you go.

I've done this several times, it's the easiest solution to the problem.
After it's unscrewed, you can trigger the gun to push the welded tip further out if the rollers won't slip enough to allow you to pull it.

 

[henry Kadzielski]

I would like to comment on this one also. Not that I recommend to do this but I know 'some one' very well who has ground the end of the tip to remove the fused section, removed the tip, put a tip cleaned needle through the tip and refitted the tip. Since some of us are so poor and destitute, this is a win win situation. Can't let a perfectly good tip go to waste, can we?

 

[Morrisman]

I would like to comment on this one also. Not that I recommend to do this but I know 'some one' very well who has ground the end of the tip to remove the fused section, removed the tip, put a tip cleaned needle through the tip and refitted the tip. Since some of us are so poor and destitute, this is a win win situation. Can't let a perfectly good tip go to waste, can we?

I've also heard of that guy, who does it because it's daft to throw way a tip just because the end of it has some minor damage. There's a reason it has 10mm of spare copper after the thread..... amd it worked perfectly after the minor modification. Or some he told me.

 

[henry Kadzielski]

it has some minor damage. There's a reason it has 10mm of spare copper after the thread..... amd it worked perfectly after the minor modification.

Blimy I knew there were more reasons, it's good to see That I'm not the only one to 'know that guy'.

 

[MoreWellie]

Can't let a perfectly good tip go to waste, can we?

to a degree yes but, if too much heat gets into the swan neck then you can end up having to replace bits of the torch as well. For the price of a tip it could be false economy

 

[mrgoodwelds]

You are likely to close with the arc need a lil gap between nozzle and weld , too hot turn down the amps ,and or not enough pressure check to see if your gas is about 10 to 13atm I think with as lil as that looks also that can happen if you get a short between the cup and tip so you might try different angles and making sure nothing its kinking your lead it's actually fairly easy thing to do just push trigger for about a second then pull your lead straight and unscrew it of and cut it push the trigger till there is enough wire for putting the new tip on and your good to go also they make dip for the tips to help prevent this and reduce verocity (splater) makes it easier to clean

 

[zeppelin builder]

at a push when you get a fuse up grind the end till you see the wire profile unscrew from the torch and if the wire comes out run a nozzle cleaner wire through it , now there is a good chance the wire will be all backed up in the liner and will come out reluctantly , best run that length out and snip it off, if its curly you have too much tension on the feed rollers