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Shell-mould Casting is variant of the resin bonded sand technique for casting steel, iron or non-ferrous alloys.
The mould is made by a mixture of fine sand (100 - 150 mesh) and a thermosetting resin binder that is placed against a heated metal pattern, preferably made of grey cast iron.
obtain the polyphase structure H(Z)=1-3Z^-1/1+4Z^-1
HEAT TREATMENT PROCESS
Gated pattern is used to produce good casting. It is essential to make sure that full supply of molten metal flow into every part of the mould. Provision for easy passage of the
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