Anyone have experience or have used these arc welders?

[Soundguy]

i can't say that I've ever recieved a flash burn from a cutting torch .. not the same as in an arc welder ( sunburn).. only burn from a cutting torch i've got is when a pop mkes some slag shoot up and over my mask or down the cuff of my gloves.. etc

I just don't think the glare light from a cutting torch is going to sunburn skin at range, through IR.. and I don't think it is throwing off uv like an arc welder does. heck.. a shade 5 is safe for a cutting torch.. and most of those are goggle style.. no 'face' protection.. ( though i do wear a full face shade 5 sheild. )

soundguy

 

[dcyrilc]

i can't say that I've ever recieved a flash burn from a cutting torch .. not the same as in an arc welder ( sunburn).. only burn from a cutting torch i've got is when a pop mkes some slag shoot up and over my mask or down the cuff of my gloves.. etc

I just don't think the glare light from a cutting torch is going to sunburn skin at range, through IR.. and I don't think it is throwing off uv like an arc welder does. heck.. a shade 5 is safe for a cutting torch.. and most of those are goggle style.. no 'face' protection.. ( though i do wear a full face shade 5 sheild. )

soundguy

Morning Soundguy,

Maybe I missed something, but I thought we were still talking about using twin carbon arc to use the welder as a torch? I agree, no sunburn with a gas torch. With twin carbon arc though, you're running a continous arc to create heat. Should have the same/similar IR and UV properties as welding.

 

[Soundguy]

i thought we had jumped to a gas torch.. my bad.

if arc torch.. then yeah.. same deal as arc welding..

soundguy

 

[rankrank1]

are you talking about something other than flamability / heat related?

soundguy

Absolutely. Acetylene can be scary dangerous because it is very volatile in its natural state and can explode on its own without the introduction of a spark or flame. Although rare it can actually burn inside a sealed tank. Acetylene is so dangerous that the acetylene cylinders that you use are special inside with special honeycomb materials added in hopes of helping keep acetylene stable. Even with the special materials added inside the tank, 50% liquid acetone has to still be put inside the cylinders to disolve with the acetylene to help keep acetylene somewhat stable. One of the reasons that you do not want to use a torch with the acetlyene tank laying on its side is that the liquid acetone can leak out and then you have an even more unstable acetlyene.

Propane (flammable, explosive, but stable)
Natural gas (flammable, explosive, but stable)
Acetlyene (flammable, explosive, and unstable)

C4 plastic explosive (stable)
Dynamite (relatively stable)
Nitroglycerin (unstable)

 

[rankrank1]

Morning Soundguy,

Maybe I missed something, but I thought we were still talking about using twin carbon arc to use the welder as a torch? I agree, no sunburn with a gas torch. With twin carbon arc though, you're running a continous arc to create heat. Should have the same/similar IR and UV properties as welding.

Twin Carbon Arc will be somewhat more intense in regards to IR and UV as compared to regular plain old arc stick welding. With Twin Carbon Arc the light instensity is more towards the white spectrum where plain ole arc stick welding is more towards the blue spectrum. Twin carbon arc is the technology that was used for WWII era anti-aircraft searchlights and also early cinema projectors for both theaters and drive-ins. Twin Carbon Arc is powerful since it can project a light beam 20,000 feet in the air or through early crude movie film onto a screen located several hundred feet away, but it also lets you know that it is relatively easy to maintain that arc too. Can you imagine trying to watch a film if the projector light was going out all the time? Or using it to search for planes trying to bomb and kill you if the light was going out all the time? In short, I am a total hack of a welder with about the cheapest decent level welder that you can possibly buy and have zero problems maintaining a useable flame with Twin Carbon Arc.

With Twin Carbon Arc - You must cover all exposed skin and wear your welding helmet. If you do this it is safe.

With plain ole arc stick welding - You should cover all exposed skin and wear your welding helmet.

I always cover exposed skin when welding or using the Twin Carbon Arc and have never had an issue with either process.

 

[Soundguy]

Absolutely. . Acetylene is so dangerous that the acetylene cylinders that you use are special inside with special honeycomb materials added in hopes of helping keep acetylene stable. Even with the special materials added inside the tank, 50% liquid acetone has to still be put inside the cylinders to disolve with the acetylene to help keep acetylene somewhat stable. One of the reasons that you do not want to use a torch with the acetlyene tank laying on its side is that the liquid acetone can leak out and then you have an even more unstable acetlyene.

yeah, I'm familiar with the way acetylens is stored disolved int he tanks.

As my momma said.. i was born at night.. bt it wasn't last night..



soundguy

 

[crash325]

I think this thread sort of got lost off track. But will throw in another. :2cents:

Acetylene by itself at or over 15 lb can explode without any source of ignition.

Oxygen if it comes into contact with grease or oil can also explode.

I use to have an old Smith torch that could only be used for a few minuets at a time. Cutting or welding with it, soon it would start burning inside the handle. Soon after that you had to quit, let cool and then start over. :laughing:

OOPPSS that's about 3.5 cents worth. :thumbsup:

 

[Soundguy]

that's why those warnings to never grease the oxygen rag falnge when hooking up to the bottles..

soundguy

 

[yomax4]

The Inverter based machines are all DC. The AC/DC units are still only DC on Stick where you would run the carbon arc torch.

 

[rankrank1]

The Inverter based machines are all DC. The AC/DC units are still only DC on Stick where you would run the carbon arc torch.

See Post #32