Posted by NCWayne on November 28, 2010 at 21:56:35 from (98.21.228.96):
In Reply to: Crazy information... posted by 135 Fan on November 28, 2010 at 15:14:57:
Funny thing about the whole deal is that on thicker material, say 1" and up, you could shut the acetylene completely off after you get the cut going and keep it going with the oxygen alone. The only thing you need the aceteylene for is the initial preheating of the material to get the cut started. It's sort of like blowing on glowing coals in a fire and watching them heat up, once the metal starts to flow/burn the oxygen blowing against it perpetuates the burn and effectively preheats the material in front of the cut to a point that the acetylene/preheat flames are no longer needed. Give it a try sometime, it's real easy to go too slow or too fast but given the right speed it works like a charm.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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