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My mould is galling on the sprue plate. Why?

April 26, 2017galling mould plate sprue

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My mould is galling on the sprue plate. Why?

1 Answer

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Posted

Lube should be kept on the hinge screw, and the sprue plate should be just loose enough that you can lift it off the top of the mould when closed, using the ladle to hold the plate tightly against the mould. If the plate is too tight, it will seize up.