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Air cooling is sufficient to maintain temperature for the large and thick-walled castings in gravity die casting.

Air cooling is sufficient to maintain temperature for the large and thick-walled castings in gravity die casting. Correct Answer False

Air cooling is not sufficient except for thin and small castings. Generally, air cooled dies are provided with fins on the outer surfaces to increase the heat extraction. And cooling water can be also circulated through the portions of the mould that are likely to have large heat concentration.

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