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Q. Discuss briefly the causes and remedies of misrun and cold shunts casting

Cold Shunt and Misrun : When the metal is unable to fill the mould cavity completely and thus leaving unfilled portion called misrun. A cold shunt is called when two metal streams do not fuse together properly.

Causes : (i) Lake of fluidity in molten metal

(ii) Faulty design (iii) Faulty gating

Remedies : (i) Adjust proper pouring temperature

(ii) Modify design (iii) Modify gating system

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