Cold shunt and misrun casting, Other Engineering

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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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