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Up to what mass of gray cast irons can shell molds take?

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in Casting-Forming-Welding II by (119k points)
Up to what mass of gray cast irons can shell molds take?

(a) 300 kg

(b) 400 kg

(c) 500 kg

(d) 600 kg

The question was asked during an online exam.

This interesting question is from Cast Irons topic in section Foundry Introduction & Materials of Casting-Forming-Welding II

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The correct option is (c) 500 kg

For explanation: Shell molding is one of the most important processes which has also been employed for the production of gray cast irons. Gray cast irons weighing up to around 500 kg are usually processed by this method.

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