Aluminum degassing process - GIF

Aluminum degassing process.

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Previously:

https://www.homemadetools.net/forum/...167#post221572
https://www.homemadetools.net/forum/...909#post232721
https://www.homemadetools.net/forum/...616#post225616
https://www.homemadetools.net/forum/...925#post213670
https://www.homemadetools.net/forum/...433#post189086

I'm watching a pool of molten aluminum spin, what of this is degassing? Just the spinning?

Quote:

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Originally Posted by BuffaloJohn

I'm watching a pool of molten aluminum spin, what of this is degassing? Just the spinning?

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As long as the spinning shaft does not create cavitation the spinning action will create a pathway for the trapped gasses of the molten aluminum to escape

Quote:

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Originally Posted by BuffaloJohn

I'm watching a pool of molten aluminum spin, what of this is degassing? Just the spinning?

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You bubble Argon through it. That helps displace the trapped Hydrogen gas.

The stirrer is usually Graphite. Molten aluminum is very corrosive, and reacts with steel and stainless steel.

Mark