減圧凍結法を用いた造型法による環境低負荷型鋳造システムの開発

概要

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A new casting process with sand molds frozen under evacuation was developed for better environment and for reduction of total production cost of casting products. This report presents experimental results carried out in Saitama University. The experiments were carried out for two terms: the mechanical testing and the ultrasonic measurement of castings products, and the ultrasonic measurement of frozen sand mold. The iron and aluminum alloy castings produced with frozen sand mold were subjected to the sound velocity measurement and to the Vickers hardness testing to compare with those produced with the current CO2 process mold. The experimental results showed that the velocity and the hardness in the casting produced with the frozen sand mold showed the same properties as those of the castings produced with the CO2 process mold, and these were in good agreement with structure observation of the castings. The sound velocity in the frozen sand was about 4000 m/s and was almost the same as that in ice.
埼玉大学地域共同研究センターの論文