Method and system for controlling casting solidification

Abstract

The subject of the application is a method of controlling the crystallization of a casting by actively receiving heat from the cooling casting by means of a chiller (3) and a water cooler (5) through which water flows, wherein the method comprises simulating the course of changes in the reference temperature parameter as a function of time for the desired microstructure of the casting, measuring the actual temperature parameter of the casting, comparing the value of the measured temperature parameter with the value of the reference temperature parameter in a given time unit, regulating the water flow rate through the water cooler depending on the difference between the value of the measured temperature parameter and the value of the reference temperature parameter so that the course of changes in the value of the measured temperature parameter as a function of time corresponds to the course of changes in the value of the reference temperature parameter as a function of time.The temperature difference (ÄT) between the cooler (3) and the water cooler (5) is used as the temperature parameter, and a thermoelectric generator (4) is used to measure the temperature difference (ÄT), the hot side of which is the cooler (3) and the cold side of which is the water cooler (5).The subject of the application is also a system for controlling the crystallization of a casting comprising a cooling unit with a water cooler (5) equipped with a water chamber, a cooling water tank (8) connected by means of a supply pipe (7) and a return pipe (6) to the water chamber of the water cooler (5), a pump (9) connected to the supply pipe (7) for forcing water flow between the water cooler chamber (5) and the cooling water tank (8) and a controller (12) electrically connected to the pump (9), wherein the cooling unit further comprises a chiller (3) adapted to contact the casting and a thermoelectric generator (4) located between the chiller (3) and the water cooler (5) and electrically connected to the controller (12).