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Role of clay (Bentonite) on mold making process in foundry metallurgy
(Universiti Kebangsaan Malaysia (UKM), 2008-12-03)
The foundry engineer is usually familiar with the fact that there are different types of clay,such as kaolinite and montmorillonite (bentonite). The bonding action of kaolinite in moulding sands results from the free ionic ...
The application of Fluidity Spiral in sand-mold casting
(Universiti Kebangsaan Malaysia (UKM), 2008-12-03)
The term fluidity is always used in the cast-metals industry. Fluidity is the reciprocal of viscosity. The foundryman job is to search the amount of quantity that will permit him to evaluate the relative ability of a given ...
Effects of magnesium sulfate attack on ordinary portland cement (OPC) mortars
(Portuguese Electrochemical Society, 2008)
The chemical and mineralogical compositions in Ordinary Portland Cement (OPC) were
determined and cement which is low of C3A is more easily exposed to sulfate environment. The relation between physical strength of mortars ...