Effects of Sane Mold Properties on Mold Manufacture in Traditional Sou Mold Casting Method of Japan

摘要

"Sou mold casting method" is a traditional Japanese casting technology handed down as it is from the Heian era. However, difficulties are encountered by inexperienced person during molding operations because no quantitative analysis has been conducted the Sou mold casting method. Thus in this study, effects of the "Sane mold" method on the quality of casting goods were investigated. The molding sand used for the Sane mold is Kiso river sand, Chita shore sand and Kibushi clay. As for the grain fineness of the sand particles, river sand was 56.1, and shore sand was 73. The best mixture for molding sand was examined by permeability and compression strength experiments. Results of experiments showed that the packing density and particle size of the molding sand influences the permeability and compression strength. The best sand mixture for the Sane mold was molding sand made by adding 30 percent clay and 11 percent moisture to river sand, and adding 20 percent clay and 13 percent moisture to shore sand. For shore sand, adding 25 percent clay and 11 percent moisture was the best mixtures.