Computer aided process of dimensional distortion determination of bounded plaster sandmix
Journal Title: Archiwum Odlewnictwa - Year 2009, Vol 9, Issue 3
Abstract
A computer program allowing calculation of dimensional changes of mould made of silica-gypsum composition in process of its heat treatment and preparation for molten metal casting is presented in this paper. The composition of the mixture and casting temperature to obtain cast of predetermined dimensions can be calculated using presented software. The base for program elaboration were the results of dilatometric test of bounded plaster sandmix composed of half hydrate α-CaSO4·0,5H2O of various silica SiO2 ratio (0, 30, 40, 50, 60, 70 and 98%). Approximation was carried out in the range of temperatures 100÷800°C.
Authors and Affiliations
M. Pawlak, Z. Niedźwiedzki
Keywords
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