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Saturday, 1 February 2014

Advantages and Disadvantages of Green Sand Mould

Advantages and Disadvantages of Green Sand Mould Points : Advantages and Disadvantages of Green Sand Mould Advantages
  1. There is less distortion than in dry sand moulds, as no baking is compulsory.
  2. There is less risk of hot tearing of casting than in other kind of mould.
  3. Green-sand molding is the least costly method of make a mould.
  4. Dimensional precision is good athwart the parting line.
  5. Flasks are ready for use again in minimum time.
Disadvantages
  1. The casting surfaces by green sand casting process are extremely rough and crude.
  2. Erosion of the mould is extra regular is the making of large castings.
  3. Surface finish decline as the weight of the casting enhance.
  4. Dimensional precision reduce as the weight of the casting.
  5. Sand control is extra critical than in dry sand moulds.

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