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강부윤 ( Bu Yoon Kang ),김경호 ( Kyeongho Kim ),박대원 ( Dae Won Park ),이만식 ( Man Sig Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2017 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2017 No.-
Sand casting is extensively applied both ferrous and non-ferrous metal foundries. Thus tremendous amount of Used Foundry Sand (UFS) is being produced in foundry industry. In this regard, it is required to establish appropriate recycling method of UFS. In order to verify effect of recycling number of cleaning solution, the properties of Regenerated Foundry Sand (RFS) were investigated. UFS was produced in controlled condition using inorganic binder and treated by wet recycling method. Optimized recycling condition which removes binder from sand grains to a sufficient degree was set and UFS was recycled in that manner. Removal efficiency of binder was examined using ion chromatography analysis of used cleaning solution and X-ray fluorescence spectroscopy analysis of RFS. Particle size distribution was investigated by sieve analysis test and surface morphology of RFS was also investigated by using scanning electron microscope.