Question for all you gas welders

[Dan Gray]

Mike that's the way I would have put it if I had four hours and 15 min's to type it all out

now on to kinetic energy with Newton's law added ..
that's when you get a boot in the butt and the heal don't get closer to the toes right .

 

[fitzo]

Mike that's the way I would have put it if I had four hours and 15 min's to type it all out

That's what happens when one is retired lazy, Dan, has a bad day with the back and knees, and can't stand up or walk! All I've accomplioshed today is BS'ing on this thread and learning how to make a purse and do Christmas appliques on DIY. Exploring the nurturing feminine side of my psyche, I suppose. Yeah, right! LOL

And yes, I agree about the Newtonian physics. Potential energy would be the anger, kinetic energy would be the kick, and the reaction product would be the surprise at the foot up the arse!!!

 

[Dan Gray]

That's what happens when one is retired lazy, Dan, has a bad day with the back and knees, and can't stand up or walk! All I've accomplioshed today is BS'ing on this thread and learning how to make a purse and do Christmas appliques on DIY. Exploring the nurturing feminine side of my psyche, I suppose. Yeah, right! LOL

And yes, I agree about the Newtonian physics. Potential energy would be the anger, kinetic energy would be the kick, and the reaction product would be the surprise at the foot up the arse!!!

I need to get some work out

 

[Walt2]

I have another interesting incident, involving O2, that happened to a fellow welder that I was working beside when it happened. He was using a Acetylene torch cutting on some pipe beside me. The O2 hose developed a leak where it attached to the torch. He had a pair of leather welding sleeves on and the O2 went in the cuff of the sleeves, up into the area between his shirt sleeve and the leather sleeve. Some of the scale or rust on the pipe popped into the cuff area and caused an immediate small pop. This was sufficent to destroy the shirt sleeve from the cuff area to about halfway up his arm. All hair brunt off and like a sunburn on his arm(no blisters). O2 supports combustion and will cause an acceleration, in how fast something burns. It has been mentioned about breathing O2. I think if one would consult an MD you would learn that a human cannot live on 100% O2.

 

[Matt Shade]

I guess we're pretty close to being on the same page. The main thing with you guys side of the argument is the definition of flammable. You understand what it means in the textbook sense, and say that oxygen is not flammable.I will agree in the textbook sense that it isn't flammable. Thats not the safest statement to be making on a forum full of people who may not know the textbook definition behind flammability.
We all have very different backgrounds, some enjoy BS'ing about this stuff, some are trained in it, etc. but some folks might be reading this with no knowlege whatsoever on the matter other than they want a torch. Relaying a story about how you treat your headaches, or smoking while on an oxygen tank, while saying that oxygen isn't flammable, and without qualifying the statement, could lead them to doing something really dangerous.

I guess I didn't argue my point very well but mainly I want the point to come across that when your in an environment full of possible fuel sources, being careless with oxygen is like being careless with propane, acetylene,MAPP gas or anything else.

 

[fitzo]

I guess I didn't argue my point very well but mainly I want the point to come across that when your in an environment full of possible fuel sources, being careless with oxygen is like being careless with propane, acetylene,MAPP gas or anything else.

With that statement you'll get no disagreement from anyone here, Matt. Like Don said earlier, fire takes three things, fuel (flammable substance), oxygen, and heat. One has to be very careful about mixing them. Your concern for safety is appropriate, and admirable. Thanks!

 

[Dan Gray]

Relaying a story about how you treat your headaches, or smoking while on an oxygen tank,

mainly I want the point to come across that when your in an environment full of possible fuel sources, being careless with oxygen is like being careless with propane, acetylene,MAPP gas or anything else.

amen

I assure you there is a big difference between head aches caused by Migraines
and a head ache..

I found out just this year that O2 is one of the treatments for Migraines
it's interesting that I figured it out before they did....I've had them since 15 years old. 35 years now.

story time now.
in an operation a surgeon was operating on a patient's throat some how the electric scalpel cut a hole in the o2 tube,caused a spark and the tube caught on fire so fast the patients lungs burned out before they knew what to do.,,, he never knew what happened now these are people with a very high education, science back grounds and the medical field developed this stuff.
right?

 

[Joe Cabaup]

walt2 said "It has been mentioned about breathing O2. I think if one would consult an MD you would learn that a human cannot live on 100% O2."



At 1 atmosphere of pressure (sea level) 100% O2 is not toxic but at hyperbaric concentrations it will be. Hence technical scuba divers and commercial divers mix special blends of either nitrogen and oxygen (nitrox) to stay at shallower depths longer or helium and oxygen (heliox) to stay at deeper depths longer.

When a medical team says the patient is at 100% perfusion for O2, that is a measurement of the amount of red blood cells carrying oxygen. Usually most healthy people are between 96 to 98 percent, smokers run about 92 to 94 percent.

Certain medical treatments, for example Carbon Monoxide poisoning, require hyperbaric chamber treatments with 100% O2 to supersaturate the red blood cells to displace the CO.

 

[Joe Cabaup]

I also use the Bernzomatic Mapp/Oxygen kit. I love it! I'd love it even more if there was a way to hook a 20 cu ft oxygen bottle to the kit. I've gone through four O2 bottles and haven't used up the MAPP bottle yet.

I have been looking for a cheaper alternative, like refilling the disposable bottles or finding an adapter for the O2 side of the torch so I could hook up a larger, refillable O2 bottle.

The local welding companies will not willingly give out hints or help. Both of my local companies stated that I must buy their Ox/Acet kits (at over $400.00 a pop).

A resource that I have started researching was jeweler's torches. Many run on Mapp and oxygen. I'll let you know as time goes on.

 

[Stacy E. Apelt - Bladesmith]

I didn't read every post,but just in case no one mentioned it,Refilling disposable tanks is a felony,10 years and $10,000 fine.The DOT takes this VERY SERIOUSLY.I know that is an invasion of our rights as free bladesmiths,but as has been stated,an improperly refilled cylinder can kill you,and several of your friends.
As an OT,I have a 'Signaling Cannon" which is a 4" shell casing with a spark plug in the primer hole.You put in two drops of gasoline,and blast in a burst of oxygen.Hit the spark coil and,BOOM.It is about the blast of a 10 gague signal canon.
SA