Q. How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in Co2 moulding?

(A) 0 to 2 %
(B) 2 to 6 %
(C) 6 to 10 %
(D) 10 to 14 %

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✅ Correct Answer: (B) 2 to 6 %

Explanation: no other things like clay, water and resins are added to the sand except sodium silicate, which reacts with the sand mix to increase the flow-ability to fill up corners and intricate contours. then the co2 is supplied to the mould and reaction takes place as follows:

Published by Mr. Dubey ⭐ 109.99K Points at 20-Sep-2023 12:46 pm in Manufacturing Technology

Explanation by: Mr. Dubey

no other things like clay, water and resins are added to the sand except sodium silicate, which reacts with the sand mix to increase the flow-ability to fill up corners and intricate contours. then the co2 is supplied to the mould and reaction takes place as follows:

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Q. How much percentage of sodium silicate (Na2SiO3) is added to the sand mixture in Co2 moulding?

Explanation by: Mr. Dubey

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