Date: 11 Oct 2001 15:47:56 -0700 From: swear@blarg.net (Gary W. Swearingen) To: <freebsd-chat@FreeBSD.ORG> Subject: Re: Use of the UNIX Trademark Message-ID: <6xzo6xssir.o6x@localhost.localdomain> In-Reply-To: <a05101003b7eb12fedac9@[194.78.144.28]> References: <007701c15216$867d47c0$1401a8c0@tedm.placo.com> <a05101003b7eb12fedac9@[194.78.144.28]>
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Brad Knowles <brad.knowles@skynet.be> writes: > I've used such cylinders in Oxyacetylene cutting torches, and > brazing, but I don't recall them ever being able to generate > enough heat to do proper welding. I think enough heat is not the problem, but things like controllability and impurities (eg, Oxygen, air) in the weld are the main reason for using other technologies for common welding tasks. Also, I'll bet a tank of compressed air is a lot cheaper than one of either Oxygen or Nitrogen. Anyone know if highly compressed air is a dangerous fire hazard along the lines of Oxygen (but less so, of course)? Of course, in the application discussed, it would be reduced in pressure very near the tank to the normal levels of the tool being powered. Also, does anyone know if different gases work better than others (ignoring dangerousness) because of their different compressibilites? (I'm not even sure what that means, but I know I can get more power out of squeezed rubber than squeezed steel.) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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