Question

The cores produced by the binder process called hot-box process is called _________

(a) Shell core

(b) Resin bond cores

(c) No-bake cores

(d) Dry sand cores

The question was posed to me during a job interview.

I want to ask this question from Binders used in Making Cores in chapter Sand Moulding of Foundry and Forging

Answer 1

The correct choice is (a) Shell core

Best explanation: The hot-box process uses a thermoset and catalyst for a binder. The cores produced by this process are called shell cores because only the outside layer is hardened when it comes into contact with the hot core box.