IT_IS_VERY_NECESSARY_TO_USE_HIGH_REFRACTORINESS_OF_MOULD_MATERIAL_FOR_ – McqOptions

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1.	IT_IS_VERY_NECESSARY_TO_USE_HIGH_REFRACTORINESS_OF_MOULD_MATERIAL_FOR_THE_MAKING_OF_INSULATED_MOULD.?$
A.	True
B.	False
Answer» B. False

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The solidification of casting in an insulating mould produces casting of hard and brittle nature.
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Chvorinov‚Äö√Ñ√∂‚àö√ë‚àö¬•s rule is commonly used for prediction of surface finish of the casting made in the mould?#
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The amount of heat removed from the castings is dependent on the amount of superheating in the casting.
More divergence of heat flow from the interface shows consequently high solidification rate of the casting.