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My foreman told me to always use a dry ladle for the first pour of the day, no matter what.
He said it was the only way to avoid a cold shut in the first casting. I followed that rule for about two years at the old Milwaukee plant. Then one morning, I was running late and used the same ladle from the pre-heat. The pour was perfect, and the part passed inspection. Now I think that extra step might just be a waste of time for our smaller molds. Has anyone else tested this with their setup?
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walker.cole16h ago
Old rules stick around long after the reason for them is gone. Your foreman probably learned that on some huge industrial line with different metal and bigger molds. A cold shut on a small pour is way less likely. If it worked fine that one time, the rule is probably just extra work for your setup.
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terry_jones16h ago
Nah, one lucky pour doesn't mean the old safety rule is useless now.
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