Various Alternative Sources for Silica Sand, Binders and Additives in Sand Casting and their Properties – A Review

Abstract

Abstract Foundries all over the world consume silica sand, clay binders and additives to some proportion for production of green sand castings. Silica sand apart from being used for mould making and core making, it is also used in many areas such as glass making, and construction etc., Consumption of silica sand in large quantities will lead to the depletion of these resources. If an alternative source is identified, the demand on single source will be avoided and the cost of the sand can be lowered drastically. Apart from conventional binders and additives for sand moulding different organic binders and additives are also available by which the sand mould properties can be improved according to the material cast like cast iron, steel, aluminum, brass etc. The search for different alternative sources in sand moulding can lead to good quality sand casting at reduced production cost.