Patent ID: 6737014
Filing Date: 2004-05-18
Classification: B22D

Abstract:
A method of determining disturbances when discharging molten metal from a metallurgical container having an outlet into a receiving container, said method comprising the steps of:(a) detecting mechanical vibrations caused by the discharge of molten metal through said outlet; (b) measuring a second property in addition to said mechanical vibrations, wherein said second property varies during the discharging of said molten metal from said first metallurgical container to said receiving container; (c) calculating a sensitivity constant based upon said measuring of said second property; (d) comparing said vibrations detected by said measuring device with a desired vibrational characteristic, wherein said desired vibrational characteristic is defined in part by said sensitivity constant, and wherein said comparing said vibrations is done using a time constant; (e) analyzing said comparison to determine the existence of said disturbances within said outlet, wherein said detecting of mechanical vibrations, said measuring of said second property, said calculating of said sensitivity constant, and said comparing of said vibrations with a desired vibrational constant, are each conducted within two seconds of each other; and (f) causing said disturbances within said outlet to cease.