![Image](http://s24.postimg.org/kedu13eb5/260620135917.jpg)
Today I tried to weld it for the first time and it seems like it really needs some heat. I barely managed to tack weld it before the return water hose got almost too hot to touch. I first used straight 180amps and then pulsing at 1pps max 200 amps 45%bg and 40% on time. Pulsing seemed to work a little better. I set the ac balance to minimal cleaning. Still the torch got too hot before I really got a good puddle going. AC frequency is ~60hz and cannot be adjusted.
![Image](http://s8.postimg.org/5ecfqfyo1/260620135919.jpg)
![Image](http://s7.postimg.org/r4qnbd5mf/240620135915.jpg)
So the metals are clean and weld quite easily but just need lots of heat. I'm thinking of using a propane torch to heat the box up. What kind of temps should I be aiming at? I guess the limit is what the rubber/plastic parts in the box can take. Do the metals need a clean after being torched? Any other tips to get more heat into the weld? I also wonder if the torch return hose is actually supposed to take that much heat? The torch itself was only slightly warm and the water in the tank was still cold. I also have a 26-style air cooled torch, any idea in using that by welding in shorter sections?
Huge thanks for any help!!!
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