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Water Analogues Aid Foundry Runner Design

Gas voids, dross in metal casting and imperfections which arise when molten metal flows into a mould are common foundry problems. The solution to each difficulty has many variables and each needs to be tested. In the past, trouble areas have been located by the construction of a running system or expensive plastic models.

This film shows an efficient and inexpensive technique devised to avoid such methods. A model is vacuum formed in a thermo-plastic mould which can be set up on a rig to allow a liquid such as water to be run into it as an analogue to the way molten metal will flow into a sand mould.

Produced in 1972.

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