[TheForge] Thanks for the info: learning to use a cutting torch properly

Sat May 31 03:44:00 2003

Frosty may well be correct on his 2-1 ratio for cutting, he is most 
generally  right on, on his advice.
So I feel uncomfortable in contradicting him...but
I've often used  much higher ratios without a problem for  the last 30 
some years without a problem. I am careful about the condition of my 
tips and flashback valves, rate of acet withdrawl, overheating , not 
cutting with a near empty acet tank and all that sort of stuff. Have 
been cutting a lot of 1/2" plate the last few years running 35 oxy and 
7psi  acet on a pipeliner sized smith torch and a #2? 6 hole cutting tip 
without problem. And I've gone considerably higher  on occaision. Above 
15 psi acet approaches  instability of course. Good flashback valves are 
imperitive...especially on the acet side.
That doesn't mean it's good practice ( I'm self taught) but it does 
lower the odds of probable catastrophy.
Frosty's "up the acet hose and blow you into a nice fine mist." sure 
gets a guys attention though!
Andy, let me say again, oxy pressure is keyed to tip size and metal 
thickness.Mostly, oxy overpressure is just expensive.

Gladish Family wrote:

>Thanks, Frosty, Pete, et al...
>I'll try running much less 02 and see if that reduces the slag.
>
>  
>
>>ratio) and plugs the tip just right, the much higher oxy pressure can back
>>up the acet hose and blow you into a nice fine mist.
>>    
>>
>
>I have a son who plays a lot of Dungeons and Dragons who says that turning
>into a fine mist is an important skill. I think he means Make Believe...
>Andy G.
>
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