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  • Ultimate Guide to Making a Cheap but Effective Aluminium Forge.

    Obviously, safety first - or at least a solid third. It's molten metal after all... A little late to the post. So I've had a very similar foundry made for a while now made of Quickrete surfacing mix and sand in a steel bucket. It's also a solid fuel foundry (charcoal briquettes) with a small electric air mattress pump for air supply. Melting down aluminum is easy enough and for the price of a bag of charcoal, I can melt down 15-20 pounds of aluminum cans. Temp runs between about 1100 and 1900 deg F depending. If I cover the foundry (quickrete/sand cover a couple inches thick with a vent hole in the center) it will soften steel enough to cause a failure. The problem for me has been the crucible. Tried steel milkshake tumblers. Failed about 20 cans in. Tried small empty fire extin...see more »Obviously, safety first - or at least a solid third. It's molten metal after all... A little late to the post. So I've had a very similar foundry made for a while now made of Quickrete surfacing mix and sand in a steel bucket. It's also a solid fuel foundry (charcoal briquettes) with a small electric air mattress pump for air supply. Melting down aluminum is easy enough and for the price of a bag of charcoal, I can melt down 15-20 pounds of aluminum cans. Temp runs between about 1100 and 1900 deg F depending. If I cover the foundry (quickrete/sand cover a couple inches thick with a vent hole in the center) it will soften steel enough to cause a failure. The problem for me has been the crucible. Tried steel milkshake tumblers. Failed about 20 cans in. Tried small empty fire extinguishers cut down to height. Failed after one or two pours. Haven't tried an empty propane bottle yet. I imagine they are about the same thickness as an extinguisher? Can anyone report how long these last for? If these fail, next will be schedule 40 stainless pipe with a welded bottom plate. Be cool if anyone has a lead on something similar...

    Thanks for the lead! I've been melting down steel vessels like it's the cool thing to do.

    Absolutely right. I have one made of quickrete/sand that's been cured for a couple weeks before use. I also pre-heat it before I fire it up to make sure there's no residual moisture. Safety first - or at least a solid third.

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