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Why silica gel is used in sand casting?
  • a)
    To help vaporize and escape gases
  • b)
    Acts as catalyst in casting
  • c)
    Both 1 and 2
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Why silica gel is used in sand casting?a)To help vaporize and escape ...
Silica gel helps in increasing the permissibility in sand casting. Permissibility is important since the unnecessary gases and vapors tend to damage the casting patterns. Silica gel provides porous structure to the casting so that the gases can escape easily.
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Why silica gel is used in sand casting?a)To help vaporize and escape gasesb)Acts as catalyst in castingc)Both 1 and 2d)None of theseCorrect answer is option 'A'. Can you explain this answer?
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