Mig Guns or liners For Nickel Alloy wires ?

By pipewelder_1999 (****)

Date 05-14-2007 18:54

Does anyone know of any "new" products that are available for feeding difficult wires ? I recently talked to a fried that indicated his shop had received some mig guns that would push NiCrMO-xx wire in .045" diameter with no problems coiled in the floor loke a hose. I didn't get the brand name.

Any advice ?

Have a nice day.

Thanks

Gerald

By darren

Date 05-15-2007 09:31

they are not new but teflon wire liners are what we use when there is a worry of contamination of the wire consumable by the liner and they do feed easier.
darren

By MDG Custom Weld (***)

Date 05-15-2007 10:23

Darren has it right, we use teflon liners when alloy contamination is a concern. We also use galvanized liners on some of our high volume robotic welding cells using NiCrMo-3. It last a lot longer than standard liners, and doesnt seem to drag as much.

By js55

Date 05-15-2007 13:22

And as it turns out the Teflon liners also assist in the sliding of the wire through the conduit. Like eggs out of frying pan.

By pipewelder_1999 (****)

Date 05-15-2007 14:33

Do you get pretty good life out of the teflon liners on hand held guns ?