coppercone
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Registered: 5-5-2018
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high energy ball mill? are they legit?
I see they sell so called high energy ball mills for making nanopowders, which is interesting to me, otherwise you need to do funny things to get
nanodispersions.
Are they legit? My understanding is that a ball mill typically has a so called critical angular rotation where it is effectively having the most balls
in grind mode, and that this produces the fastest grinding.. and that if you go above this velocity, the balls basically get stuck to the walls due to
excessive centerfugal force, so there is less balls grinding.
When I saw the so called high energy ball mills, I thought it was a sham.. so whats going on?
I see some of them do elliptical motions and stuff, which maybe effects things, but like, can they do somethign that a regular mill cannot do?
[Edited on 29-5-2018 by coppercone]
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Bert
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Mood: " I think we are all going to die. I think that love is an illusion. We are flawed, my darling".
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They exist. They work. The parameters for speeds of carrier disk and the individual counter rotating mill jars are very dependant on characteristics
of the materials in the mill charge.
See here:
http://www.understandingnano.com/nanomaterial-synthesis-ball...
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Texium
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Thread Moved
27-11-2023 at 12:21 |
Millhouse
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Yes they work quite well, a good rule of thumb is to have the milling jar, half full of grinding media, and then about 3/4 of the rest filled with
your composition/chemical of choice.. a great place to start is the rebel 17 tumbler from extreme tumblers.. you’ll need to modify your drive pulley
size to get the appropriate 68-70 rpm for efficiency.. hope this helps..
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