Question

Misrun is the defect produced in casting process due to the solidification that starts before complete filling of the casting cavity.
This defect can be eliminated by

• A. Providing high thermal conductivity metal pieces at the corners
• B. Eliminating aspiration effect
• C. Increasing the pouring of molten metal into the casting cavity
• D. Increasing degree of superheat of molten metal

Answer 1

The correct option is D Increasing degree of superheat of molten metal

Misrun defect can be eliminated by increasing degree of superheat of molten metal, because superheating improves the fluidity of molten metal.