METHOD FOR AUTOMATICALLY POURING MOLTEN METAL AND CASTING SYSTEM

Japanese Patent JP3632878

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PROBLEM TO BE SOLVED: To execute molten metal pouring control in high accuracy and short time by tilting and tapping a ladle under a preset pattern, measuring poured molten metal wt., remained quantity to be poured and pouring velocity and returning back the tilted ladle based on these values and a predicted flow-out quantity.
SOLUTION: The ladle 1 starts the tilting, and the molten metal 16 is poured into a sprue 18 of a mold 11. The tilting of the ladle 1 is executed according to the suitable tilting angle matching to the mold 11 and a pattern of angular velocity. A molten metal pouring control unit 13 stops the tilting when the ladle 1 reaches the prescribed point and calculates the molten metal pouring quantity, remained quantity to be poured and pouring velocity in each prescribed period. The remained quantity to be poured and a first predicted flow-out quantity are compared. The return-back of the tilted ladle to stop the pouring is executed at the point of time when the flow-out quantity during returning back the tilted ladle 1 corresponds to the remained quantity to be poured, to obtain the target molten metal pouring quantity. The ladle 1 is tilted and the molten metal is poured into the molds which are not yet poured, in order and in the case the wt. of the ladle 1 containing the molten metal becomes the setting wt. or lower or the tilting angle of the ladle 1 exceeds the limit angle, the pouring of molten metal in the ladle 1 is completed.

Mukai, Ryoji
Aritoshi, Hiroyuki
Matsuoka, Nobuyoshi
Arase, Hirotaka

JP1997000042377

January 07, 2005

February 26, 1997

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HITACHI METALS LTD

B22D37/00; B22D39/04; B22D41/06; B22D37/00; B22D39/00; B22D41/00; (IPC1-7): B22D39/04; B22D37/00; B22D41/06

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