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other questions r
1. why surface finishing is poor in sand casting ? what shoul b done 2 over come it?
2. why diff strength tests are taken on sandmould?
3. why the shapes of specimens r diff 4 diff type of strength tests?
4.what is role of parting sand in mould making?
5.why ramming should b done properly during sand mould making?
6. why there should b prescribed amount of water in sand mould? what happen if water % increase & what happen if water % decrease?
u could find them in top[ics related to foundry,casting,mouldmaking

2006-11-01 01:48:49 · 1 answers · asked by Anonymous in Science & Mathematics Physics

1 answers

Reproduction detail
1. use of finer sand,
2. Hydrostatics of the molten metal
3. same as in #2
4.Hmmm?
5.To avoid air voids :).
6. Not enough water and the sand will crumble, too much water the medium will be too fluid or too much of steam will be produced during casting damaging the mold from inside out.

2006-11-01 01:56:56 · answer #1 · answered by Edward 7 · 0 0

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