Outer Limits 4x4 Board

Hey all,
Been playing around with a BOC 200C mig welder and im getting a lot of splatter while trying to lay a weld. It sounds like fireworks.... Gas is ArgoShield Light. Wire was a little rusty so i took the first layer off the roll. Tried playing around with the adjustments but no luck.
Any suggestions of whats causing this?

Cheers

not enough amps, or to high wire speed. try dropping the wire speed. proper gas flow?

take a photo, but if it's all pitted its gas
if the gun is jumping when it happens the wire feed is to high or amps too low.

but then there are things like what your welding, wire size, outside in the wind...etc

the primer applied to steel can play havock too, as can gal... make sure the steel is clean and free from cutting compounds (if you used something like a Brobo saw to cut it), else check the advice above...

Either turn your volts up or your wire feed down.

Amps is the same as wire feed speed in simple terms.

Start by turning volts down to about half range, then adjust the amps up or down until she crackles nicely without sending spatter everywhere.
Then try slowly adjusting both up at the same time to acheive the desired weld heat.

Remember that spatter is mainly caused by wire feed too high compared to volts. When the wire feed is too high, too much wire is being fed into the weld which causes the wire to explode all over the place creating spatter.

Cheers

basically what everyone else said

too much wire, too much juice or too little, i donno but from memory gas should be what 12-15 on the air flow checker thingy

crap already on the steel too wont help any ,

but i havent worked for nearly 5 months so im outa date on things

yamaha__308 wrote:Hey all,
Been playing around with a BOC 200C mig welder and im getting a lot of splatter while trying to lay a weld. It sounds like fireworks.... Gas is ArgoShield Light. Wire was a little rusty so i took the first layer off the roll. Tried playing around with the adjustments but no luck.
Any suggestions of whats causing this?

Cheers

If tinkering with the settings fails then try .....

1/ get a new roll of wire

2/ if it continues to play up with the new roll, get a new liner for the torch lead


You wont get rid of the coroded wire by "took the first layer off the roll" approach, most likely the entire roll is effected.
Using a rusty roll generally stuffs the liner aswell, the rust particles are scraped off and lay in the liner and are picked up again and eventually make their way to the nozzle.


Some pics of the actual weld and spatter problem will help with a diagnosis.


Kingy

matthewK wrote:basically what everyone else said

too much wire, too much juice or too little, i donno but from memory gas should be what 12-15 on the air flow checker thingy

crap already on the steel too wont help any ,

but i havent worked for nearly 5 months so im outa date on things

i run mine on 20, but that is just me..

With all those replies did you get it running right?

cheers mark..

mud4b wrote:

matthewK wrote:basically what everyone else said

too much wire, too much juice or too little, i donno but from memory gas should be what 12-15 on the air flow checker thingy

crap already on the steel too wont help any ,

but i havent worked for nearly 5 months so im outa date on things

i run mine on 20, but that is just me..

With all those replies did you get it running right?

cheers mark..

i run mine at 20 if i'm welding outside. if i'm in the shed i turn it down to about 15.

Make sure your welding with AC current if using gas..Is the wire you have a gas wire?

Do you have the polarity around the right way. ie negative earth.
Is the roll of wire turning easily on the shaft.
Are your rollers the correct size for the wire.
Are your rollers adjusted correctly, ie they push the wire through without slipping, not so tight they make a mess when the tip jams.
Is the liner clean and kink free.
Tip the correct size and not binding.
Try and lay the lead from the welder to the torch in the staightest line to avoid binding.
The easyest way to set the wire feed. Hold the torch in one hand and the wire feed control in the other. start welding on a piece of scrap turn the wire feed up or down until it sounds right. what sounds right will usally weld right. Or at least get you close enough to make a good weld then make small adjustments later.
Some anti spatter spray may help too.
Hope this helps

Thanks fellas,

Ive tried all combinations of wire speed and volts. Steel was slightly rusty but I ground it clean where the clamp and weld was.
The wire is coming through without binding. Doesnt feel like the torch is jumping either.
Looks like i may need a new roll of wire and liner, as its still not spotless. Im not sure what wire or size im using as its not my welder and its been sitting in storage for a few years..
How do i check its on AC current?

Ill have another play around with it
Thanks for advice