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In permanent mould casting, the mould is pre-heated to its operating temperature before the actual use of mould.

In permanent mould casting, the mould is pre-heated to its operating temperature before the actual use of mould. Correct Answer True

When the casting is done with the cold die, the first few castings are likely to have misruns (Misrun is caused when the metal is unable to fill the mould cavity completely) till the die reaches its operating temperature. To avoid this, the mould must be pre-heated to its operating temperature, preferably in an oven.

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