The sand casting method consists of a furan resin bonded sand model into which melted metal is poured at about 750°C. The furan resin reacts at room temperature by mixing the acid with the sand. Plastic and wood are used as material for the casting pattern at a relatively low cost.
Sand casting is suitable for relatively large castings used in small or medium quantities. The casting method is also often used for prototype manufacturing. The surface finish and casting tolerances are adequate for most purposes.
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