Welding Tips and Tricks

I have a problem with my argon hose getting hot and melting inside my tig handle. the tig gun is a ck 17 air cooled. im was only using about 120 amps. then all of a sudden it started welding dirty and found the hose melted off the nipple inside the handle. its an easy fix but its happened several times. the argon hose is some kind of hard plastic. any info on a permanent fix. tired of stopping every ten minutes to fix it.

Sounds like hose not rated for amperage. Have you considered the flex hose. I use CK torches from HTP usaweld.com with the flex hose. I have ck 17 from them that I use 125 to 135 amps at quite a bit. Maybe call them they could hook you up with what you need. They are real helpful you can tell them what you got and what the problem is sure they will find you a solution.

Like dirtmidget33 says
Torch amp rating,when pushing max amp rate may have to incease gas flow to cool.
torch max amp rate/duty cycle
if within parameters may be a fault inside torch resisting proper gas/cooling flow