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RE: Vacuum: Go beyond the limit -- 真空: 超越極限
Oh !! Ya for those high vacuum oil pump should replace the oil from time to time, but we are somewhat lazy and thats really tiring!!!!!
Just curious, do you work with mass spec? I dont have much idea about machines which need strong vacuum XD
I work with molecular beam epitaxy. I will probably write a post about it soon. Yeah, we have mass specs as well, and we don't use oil pumps. Oils are contaminants for us, and we use either cryopumps and magnetic operated turbo pumps with a oil free backing pump.