An aluminum
alloy casting machine crystallizer aluminum leakage
monitoring system adopting sensing optical fibers is characterized in that a temperature measuring ring is fixedly arranged at the lower part of each crystallizer, each temperature measuring ring is provided with a sensing
optical fiber, and one end of each sensing
optical fiber is connected with a temperature detection
system; in the aluminum
alloy deep well
casting production process, the surface of a cast aluminum
ingot radiates
infrared rays to enable the temperature of the sensing
optical fiber or the temperature measuring ring to rise, and accurate detection of the temperature of the outer surface of each aluminum
ingot is achieved; before an aluminum leakage accident of the aluminum
ingot occurs, the distance between the semi-
solid high-temperature molten aluminum in the aluminum ingot and the surface of the aluminum ingot is reduced, and the surface temperature of the aluminum ingot is increased, so that the temperature of the sensing optical
fiber or the temperature measuring ring is increased; when the sensing optical
fiber detects that the temperature abnormally rises, it is judged that the aluminum ingot may have an aluminum leakage accident, and at the moment, measures are taken to enable the semi-
solid area in the aluminum ingot to recover to the
normal state again, so that the aluminum leakage accident is avoided; the utility model has the advantages of simple structure, few sensors, low cost, high reliability and simple maintenance.