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________________ facilitates the removal of the shell.

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in Foundry and Forging by (110k points)
________________ facilitates the removal of the shell.

(a) Dextrin

(b) Sand

(c) Zircon

(d) Silicone

I got this question in semester exam.

My question is taken from Core and Shell Moulding in division Moulding Machines & Special Moulding Processes of Foundry and Forging

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The correct option is (d) Silicone

The best explanation: In the shell molding process, the pattern is coated with sand and typical binders and a shell are created over it. After the shell is done, a parting agent is coated over it to facilitate the easy removal of the shell. Silicone is a parting agent.

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