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[MW:15311] Cracks in the casting of truck frame

By Materials & Welding
Dear Experts,
Please help me in the mention issue-
We are doing sand casting for the Truck Frame.After all giving proper
chills at all the corners,maintaining low pouing temperatures and
doing process of opening mold after standard opening & knock out,we
are getting the cracks in different locations.Can you help me on this
by giving your valueable suggestions that how we can reduce the cracks
& what could be the reason for the same??

Thanks in advance.

--
Thanks,
S.D.Mishra

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