METHOD FOR CONTROLLING SOLIDIFYING CRYSTALLINE STRUCTURE OF ALUMINUM CAST ALLOY

摘要

PROBLEM TO BE SOLVED: To recycle an aluminum cast alloy, which contains iron and silicon as impurities, as a high functional material by reforming its physical characteristics, and further, to contribute to the request to realize a recycling society by reducing waste.;SOLUTION: When the heated and molten aluminum cast alloy containing the impurities is solidified, the primary crystal is controlled to have a polygonal very fine particle shape with dozens of μm by directly imparting ultrasonic vibrations to a molten metal of the aluminum cast alloy.;COPYRIGHT: (C)2004,JPO&NCIPI