抄録
Frozen mold was made by freezing the mixture of sand and water without binder. The bonding strength of the frozen mold changes according to the temperature after poring and then it collapse at room temperature. Therefore, the frozen mold excels in molding operation, shaking-out and preventing environmental pollution. This study was carried out to determine the suitable molding condition and obtain its advantage by using Al-Si alloy castings. Laboratory examination leads that the optimum grain size of sand is around 150μm and the moisture content in the mold ranges 5 to 6 % The mold needs to be frozen below 253K so as get the comparable strength to the conventional mold. It is noted to the frozen mold offers the preferable properties to the conventional mold.
