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Tips, Techniques, and Questions -- Technical questions or tips

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  #1  
Old 2020-09-09, 3:13pm
marcuscarr marcuscarr is offline
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Default Can I use a tank of 75% Oxygen and 25% Argon for glass?

I have a large oxygen tank with a 75/25 mix in it that I used for my plasma cutter. Can I hook this up to my major minor torch for the oxygen feed?
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  #2  
Old 2020-09-09, 8:46pm
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Three Muses Glass Three Muses Glass is offline
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I think this question is best answered by the torch manufacturer. You don't want to hurt yourself or your torch!
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Old 2020-09-10, 4:00am
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It's a curious mix to my limited experience.

But Argon is inert if I remember rightly so I guess it would be okay to use up the contents of that tank that way.

Seems kind of a waste of it to me though.

Do you know any other plasma cutters that might put the mix to use? Maybe for a little $?

You won't get the boost that even an oxycon will get you and nothing like the sweetness of a the higher 98 / 99 % of commercial tanked oxygen will provide.
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Old 2020-09-10, 1:34pm
marcuscarr marcuscarr is offline
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I was mixing up gases in my head when I wrote this. My tank with argon is 75% argon/25% CO2. It's the shield gas for my wire feed welder. And of course it would make a horrible combustible because it does exactly the opposite.

Plasma cutter uses compressed air and power, lots of it.

The Oxy setup has a Oxygen only tank and a Acetylene tank. Since this is pure Oxygen, I could move this to the torch. However, I happen to have traded that tank to the local gas place for the shielding gas tank for the welder. Hence my confusion.

No worries, the mix up was in my head at the computer. I would never actually attach a tank without careful thought and process so I would have realized this as soon as I walked out to the garage.

I think I will probably trade the Acetylene tank for a large Oxygen tank for glass work since I have a complete oxy/ace cutting setup with smaller tanks.

Speedslug got be on the right track with his comment about Argon being inert.
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Old 2020-09-10, 4:26pm
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I figured something like that was the case.

If you were experienced enough to have a plasma cutter then the question didn't make sense to me (of very little experience with cutting anything other than lumber).

I have done a ton of various stuff in my time in the Navy but I think the only time I worked with gases was argon in a radar wave guide to keep it from rusting the mirrored surface inside it.

Welcome to the forum and the Addiction to molten glass!!!! (Insert maniacal laugh here)
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