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Inert gas as a cover

Posted: Wed Jun 06, 2012 3:39 am
by mite5255
If using an inert gas as a cover, do you just squirt the gas into the crucible, plus as it heats up does the gas rise out of the crucible

Mike

Re: Inert gas as a cover

Posted: Wed Jun 06, 2012 6:08 am
by Jammer
A lot would probably depend on how much turbulence you have inside the furnace. An electric wouldn't have much but a forced air gas burner would blow all the gas out the top. A small tube feeding the gas in at a slow rate would help, but then you have to worry about the tube melting.

Re: Inert gas as a cover

Posted: Wed Jun 06, 2012 11:08 am
by mite5255
Jammer wrote:A lot would probably depend on how much turbulence you have inside the furnace. An electric wouldn't have much but a forced air gas burner would blow all the gas out the top. A small tube feeding the gas in at a slow rate would help, but then you have to worry about the tube melting.
Thanks Jammer, I was going to try just for an experiment to see how well it would work


Mike