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Serious question, has anyone else had issues with cold shuts on aluminum castings from a home furnace?
I was getting them constantly until I started pre-heating my ladle over the crucible for a full minute before the pour. What's your go-to fix for this?
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wendyk565mo ago
My old mentor swore by heating the sprue with a propane torch first.
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emmag225mo ago
Preheating the mold really well helps me too, sometimes I even hit it with a torch for a bit.
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mila_brown105mo ago
My casting results got worse when I torched the mold, it made the wax flow too fast and I ended up with thin edges. I prefer keeping the mold warm but not hot, just enough to prevent the wax from chilling too quick.
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