splatter attack when welding

[tombardier]

Greetings,

I acquired a NU-MIG 135 recently. Quite a big old beast. The wire feed was really quite poor, so I've replaced all the relevant bits. It's got a nice new steel coil liner, a new swan neck liner, new tip, new shroud, and I've done my best with the reel mounting.

It's fine if the shroud is _really_ close to the work, but move it slightly away, and suddenly I'm getting mega splatter. I was wondering if this was normal, or whether there could be something else wrong? Could it just be that I'm using incorrect power/speed settings?

Cheers. Tom.

 

[R Kraft]

What are you using for shielding gas ?
Robert

 

[tombardier]

pure co2

cheers. tom.

 

[tombardier]

just been reading the co2 vs argon section here:

http://www.mig-welding.co.uk/welding-gas.htm

Looks like that might be the answer

Many thanks R Kraft! Tom.

 

[shenion]

Sounds like you need a higher power setting or slower wire speed. With 0.6mm wire and CO2, you would often not be able to use the lowest power setting.

 

[malcolm]

Pictures might be worth a shot. CO2 is indeed more spattery than Argoshield, but it's rare for people who haven't tried them both to complain about the spatter with CO2. It's not a great hassle while welding, so probably not the reason for the problem.