液滴落下法によるAl-4.5%Cu合金とチル•ブロック間の熱伝達係数測定

Heat transfer coefficient at metal-mold interface during die casting was evaluated by the metal drop method. Solidification time at certain positions of a specimen was measured using thermocouples. It was also numerically calculated under corresponding experimental conditions with different values of heat transfer coefficient. The values of heat transfer coefficient were determined so as for both solidification time to coincide.