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New generation of pattern materials for investment casting

Karwiński A., Młodnicki S., Pabiś R., Robak I., Kubosz G.

Archives of Foundry Engineering

2011

Vol. 11, iss. 1

53-56

Pattern mixtures (so-called soft mixtures) currently used in investment casting are composed of paraffin, stearin, and - to a lesser extent - of ceresin, polyethylene wax and other natural and synthetic waxes. During studies, several types of soft pattern mixtures were developed by modifying the already existing compositions with appropriate additives. Based on the studies of physico-chemical and performance properties, the composition of pattern material was optimised.