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I have a cnc plasma table that is torch ready. I've been thinking about upgrading it to oxy-propane or oxy-acetylene. Which is better with thick material (2 to 4 inch)? I've been leaning to oxy-propane but some old timers tell me that oxy-acetylene is the only way to go for my desired thickness. Propane has some obvious wins like cost and availability. Equipment cost between the two is similar. I'm looking for capacity and ipm comparisons if anyone has experience.
Reply:It's probably wrong but I've been told that since your actually cutting more with the oxygen after the metal heats up that gas type doesn't matter much, although I have no personal experience with propane as a fuel. only acetylene."...My pappy was a pistol I'm a son of a gun...""...God is great, beer is good, and people are crazy..."
Reply:It has been my experience that oxy- propoane is more economical than oxy-acetylene in the thicknesses you listed.
Reply:When running a nuetral flame with propane it takes longer for the steel to heat up before you start the cut. The only way I can get it to work faster is by setting an oxidizing flame but then I have to hold the tip closer to the steel to start the cut. On a piercing cut having the tip closer allows slag to blow back up into the tip making life fun. This is where acetylene seems like a better choice because the standoff of the tip when preheating and cutting would be the same. I hope this helps.
Reply:I have used oxy. propane on the circle cutter and straight line for years, thickest cut was an 8' run on 8" .
Reply:Propane gives a much cleaner cut. The torch tip is not as height sensitive as acetylene when cutting. Propane is much safer and cheaper even though you use more oxygen for the preheat flame. Cutting speed is similar. The time preheating to pierce however is longer. I find by the time I trim my flames and fiddle with things I have the preheat in the plate anyway, especially with multiple heads. Some commercial operations go all the way and use natural gas. I prefer propane both for hand cutting and for a burning table.
Reply:Yeah, I basically agree w/ Lotech. In shop, I like propane. In the field I like Acy, not as pretty, but quick and no fuss.2011 Dodge 3500 diesel duallyLincoln SA-200Lincoln SAE-300LN-25'sLincoln Idealarc R3RMiller Trailblazer 302
Reply:I have never used one of these torches but figure that it's at least worth a look. From their own website it looks promissing. http://www.petrogen.com/
Reply:Originally Posted by UpnorthI have never used one of these torches but figure that it's at least worth a look. From their own website it looks promissing. http://www.petrogen.com/ |
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发表于 2021-8-31 22:39:50