What is Casting Defects Types, Causes and Remedies ...
It occurs when loose sand washes into the mold cavity and fuses into the interior of the casting or rapid pouring of the molten metal. Causes: (i) Loose ramming of the sand. (ii) Rapid pouring of the molten metal into the mold results in wash away of sand from the mold and a hole is created. (iii) Improper cleaning of the mold cavity. Remedies