【摘 要】
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This paper describes the development of an inorganic alternative to coal or coal replacement for bentonite bonded molds(greensand molding)and the realization in
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This paper describes the development of an inorganic alternative to coal or coal replacement for bentonite bonded molds(greensand molding)and the realization in an operating foundry.Through a time period of 1.5 years,Cornponenta Foundry changed in many steps from a classical green sand system to a coal free system,based on ENVIBOND(R)developed in the GO-APIC project and further development as an S&B project.At Componenta Foundry,the percentage of casting defects or scrap did not increase.There was a tendency of an increase in stress(scabbing)defects and of a decrease in penetration defects.Benzene emission is reduced by40%,odor emission has lower values(not statistically proven).Visible is less smoke in the foundry,especially at the cooling line.The benefits for health and emissions are clearly seen.
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