Procedure for pre-determination of the metallographic structure of a casting piece and device for carrying out the process

摘要

According to the method, the procedure is such that a first part (14) of a sample solidifies at a first speed of solidification, and such that a second part (15) of the said sample solidifies at a second, lower, speed of solidification. The temperature of the first part (14) of the sample is measured, and after solidification of the first part (14) of the sample, this measurement of the temperature is used in order to determine the thermal conductivity of the sample. A thermal conductivity parameter is then used in order to predict, by means of an empirically fixed relationship, the metallographic structure. IMAGE