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Copper Pouring 3

More copper pouring, October 2007.  
 
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D33Lux (1 week ago) Show Hide
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Do you have a vid, to show how you made the foundry? Also what do you use to get the heat up to 1220*C.

thank-you
alexcorn (6 days ago) Show Hide
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I do not have a video of the building of the foundry, but I would like to make such a video sometime.

To heat the material, we burn coal and use a bathroom vent fan or leaf blower to force air (oxygen) into the combustion chamber.
1ToNJaB (1 month ago) Show Hide
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so would that be considered ,999% copper? how do you remove any contaminants?
alexcorn (1 month ago) Show Hide
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No. I don't remove any contaminates. I add contaminates because the crucible is open-top. It's filthy.
hygocan (11 months ago) Show Hide
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results maybe?
Squishyfur (1 year ago) Show Hide
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Hey, I understand covering the liquid, but why do you put so much weight on it?
fit4130 (10 months ago) Show Hide
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We placed the weight on top of it in order to keep the top flat. Before that it would come out similar to a loaf of bread. Not as rounded, but similar.

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