To reduce the friction between the mould’s surface and casting, a refractory coating is done to the surface of mould.

To reduce the friction between the mould’s surface and casting, a refractory coating is done to the surface of mould. Correct Answer False

Minimization of friction between the mould and casting surface and for the continuous release of the shell from the mould is achieved through the introduction of mould oscillation aided by the lubrication. Refractory coating of the mould’s surface is basically done for the finishing aspect.
Bissoy MCQ

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