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ball mill materials

I am making a ball mill it's a toss-up between glass barrel or a plastic barrel can somebody tell me what the static/spark risks are in both? I will be using ceramic media. thanks

aeray2 years ago
A potter acquaintance of mine who likes to mill his own clay and glaze materials builds his own ball mills and makes his own canisters, appropriately, out of clay. Find a potter in your area, and bring them some pics of old ceramic ball mill canisters, and ask them to make you one. If it works, offer to let them use the ball mill on occasion. They'll probably take you up on it.
rickharris2 years ago
Dust is your enemy when milling. this what explodes. If the process is critical and liable to cause problems Industry floods the mill with Nitrogen.

Mill wet if you can.

Plastic will wear depending on the materials and the milling compounds.

As most people here seem to want to mill black powder (WHY?) the risks are considerable.
What are bullet loads made of ? A VERY fine powder or what ?

Steve
In modern arms I think cordite or smokeless explosives.
I have done a number of dangerous things i the past 9and i am still here) BUT I think that no matter what milling an explosive no matter how benign I would leave to professionals.!!
Conker-X2 years ago
If you're milling ingredients for black powder, if you can, stretch for the cost of bronze - no impact sparks, no static build-up.

If you can't get a whole bronze mill, maybe you can build a wooden barrel, and line it with bronze sheets?

(Please note, I have never made or used a ball-mill, I'm just working from theory)
Plastic will definitely have more issues than glass - plastics can get dry enough that they build up a surface charge. Glass is much more hydrophilic, and the surface layer of water allows charge to drain off, if it can.

Steve
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