Effect of biodegradable resin ration on the properties of resin onded sand for casting

Hamdan, Nurul Hidayah (2014) Effect of biodegradable resin ration on the properties of resin onded sand for casting. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Casting is a manufacturing process to form complex parts that produce near net-shape. For resin bonded sand casting mould, the sand must contain some type of binder (resin) that acts to hold the sand particles together. Typically, the resin is made from non-biodegradable materials that have issues on reclamation and disposal of the sand. More than that, the resin of non-biodegradable sand mould cause hazard to the environment. For this study, effect of biodegradable resin (PVA and modified urea) ratio on the properties of resin bonded sand for casting will be analyzes. The objectives of this study are to study the effects of different ratio and suggest the optimum ratio for biodegradable resin and hardener to the permeability and moisture content of resin bonded sand casting mould. Other than that, casting process was performed using the developed resin bonded sand mould. Full factorial design with three levels and two factors was used to study the responses of moisture content and permeability with possible interactions. Casting process was performed using the optimum ratio to ensure and visualize the performance of biodegradable resin bonded sand mould. As a conclusion, 3% of resin and 200 ºC temperature was the optimum ratio for the biodegradable resin bonded sand mould because it achieved the standard value for every response.

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