Process and device for casting a billet of liquid metal

Details Process and device for casting a billet of liquid metal Process and device for casting a billet of liquid metal

1997-10-02

1999-07-13

Ryan, Patrick

Metal founding

Process

With measuring, testing, inspecting, or condition determination

1641513, 1641511, 1641554, 1641555, 164428, 164480, 164454, B22D 1118, B22D 1106, B22D 1120

Patent

active

059213132

ABSTRACT:
A process and system for casting a billet of liquid metal. The liquid metal is cast into a casting die and drawn from the casting die as a billet having a solidified investment and a liquid core. The liquid metal level in the casting die is regulated to a predetermined reference value. Disturbance variables, which act on the liquid metal level in the casting die and which cause a deviation between the actual value and the reference value of the liquid metal level, are estimated, and the influence of the disturbance variables on the actual value of the liquid metal level is compensated or reduced using the estimated disturbance variables.

REFERENCES:
patent: 5311924 (1994-05-01), Asano et al.

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