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Our shop in Toledo stopped pre-heating molds for our gray iron jobs under 50 pounds
The old foreman always said you HAD to pre-heat to avoid cold shuts, but we tried skipping it on a batch of small gear blanks. After six months, the scrap rate is actually LOWER because we're not getting as much sand burn-on from the extra heat. Has anyone else run into this with smaller pours?
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derek_burns23h ago
Our foreman in Dayton said the same thing, actually.
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