Improvements in or relating to water dispersible moulds

Details Improvements in or relating to water dispersible moulds Improvements in or relating to water dispersible moulds

B - Operations, Transporting

22

C

B22C 1/18 (2006.01)

Patent

CA 2152494

A water-dispersible mould for making a casting comprises a water-insoluble particulate material, such as foundry sand, a binder which includes polyphosphate chains and/or borate ions, and at least one fine refractory material such as one selected from finely particulate silica, silicates and aluminosilicates. The incorporation of the fine particulate refractory results in improvements in the strength and related properties of the mould, when hot, prior to casting.

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