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Welding cart/torch stand for my oxy-propane rig


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It takes a while to adjust from oxy acet to oxy prop, they run very different ratios. It won't take long and it'll get better, LOTS. You'll be amazed how low you can set a flame and still heat faster than oxy acet does.

Frosty The Lucky.

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Well, I never used oxy-acetylene at all, so at least there’s nothing to unlearn!

Victor and weld.com have some good videos about using oxy-propane, so I am relying on those for some flame-adjustment guidance. 

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The easiest mistake to make is too much propane. You want to see the nice short primary combustion cones on each nozzle, no secondary zone, the opaque feathery flames the tertiary envelope should be dark blue and transparent. 

Sorry if that's unhelpful, I could show you in 20 seconds in person but I have what I have to try and help. Demoing my torch wouldn't do any good it adjusts WAY differently than the modern videos show. 

Frosty The Lucky.

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6 hours ago, Frosty said:

You want to see the nice short primary combustion cones on each nozzle, no secondary zone, the opaque feathery flames the tertiary envelope should be dark blue and transparent. 

I just ran across the following on Welding Web:

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The flame can be judged based on the shape and color of the inner primary flame (or flames for a rosebud). When the primary flame is long and has a feathered border, it's reducing. As the primary flame becomes short and well-defined, it is neutral. The oxidizing flame looks really similar to a neutral flame, except the difference is that the oxidizing flame will have a slightly shorter primary flame and the primary flame will become a brighter/lighter (whiter) color blue.

How's that sound to you?

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That sounds about right, certainly close enough to work from as a departure point. 

On my oxy prop rig you can hear it, especially as it starts leaning out, it goes from a neutral SHHHH to a hiss then gets breathy almost whistling. If you're heating something big the rosebud literally shrieks and loudly. That's my 1980s Allstates rig though. The new Allstates rigs are much different and since I had my oxy regulator repaired mine might not be anymore. 

Frosty The Lucky.

 

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That's the whistle and under the conditions I remember. The "star" pattern he showed by placing a properly tuned torch close to the plate matches what mine does as well. 

I should get a full tank of oxy and practice a bit, it's been a while. I still don't know if it's any real help basing advice on a torch that's probably only vaguely like yours. 

I was taken with the last thing the Victor rep said at the end of the video. That with the right tips he could do anything with a multi fuel torch an acet torch will except weld. 

That's a BIG Ten Four!

Frosty The Lucky.

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