Etsuo Sasaki1, Hiroshi Onoda2 and Kozo Yano3
1Tokyo Medical and Dental University, Tokyo
The temperature change of the interface between the die and the casting was measured immediately after the melted metal was injected into the cavity of die. Special thermocouple elements with enough sesitivity for the measurement of the rapid temperature change under the high casting pressure and also proper temperature recording systems were used for this experiment. ZAC and silmin (13%Si) were used as casting alloys. Main results are as follows: (1) The temperature behavior of the casting side of the interface was similar to the case of the gravity die casting, but the temperature near the completion of solidification of the casted alloys was considerably lower than usual solidification and the cooling rate was much faster than the cooling rate in the gravity die casting. (2) The maximum temperature of the die side of the interface was located in the middle temperature region between the die temperature and the melting temperature of the casting alloys.
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