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The core when mixed with synthetic oil does not require heating.

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+1 vote
in Foundry and Forging by (110k points)
The core when mixed with synthetic oil does not require heating.

(a) True

(b) False

The question was posed to me in a national level competition.

My doubt is from Binders used in Making Cores in portion Sand Moulding of Foundry and Forging

1 Answer

+1 vote
by (736k points)
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The correct option is (b) False

For explanation: The core when mixed with synthetic oil in conjunction with cereal or clay is to be baked in convention oven between 200 and 250^o^C so that the heat causes the binder in polymerizing. This helps the binder perform well.

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