Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1986-07-29
1988-03-01
Godici, Nicholas P.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164491, B22D 1104, B22D 1110
Patent
active
047279265
ABSTRACT:
A width changing method in which the width of a slab under casting is changed by a movement of narrow face of a continuous casting mold by the operation of a horizontal driving device and a rotary driving device operable independently of the horizontal driving device. The period of width changing operation is divided into a forward taper changing period in which each narrow face is inclined toward the center of the mold and a rearward taper changing period in which each mold wall is inlcined away from the center of the mold. The acceleration of the horizontal movement of each narrow face is determined by means of allowable shell deformation resistance as a parameter for each period. Also is determined the angular velocity of the rotary device or the difference in velocity between the upper and lower ends of the narrow face. The width changing operation is conducted while maintaining the acceleration and the angular velocity or the velocity difference at constant levels in respective periods.
REFERENCES:
patent: 3710845 (1973-01-01), Burkhardt et al.
patent: 3926244 (1975-12-01), Meier et al.
patent: 4356862 (1982-11-01), Gloor
patent: 4413667 (1983-11-01), Schrewe et al.
patent: 4465122 (1984-08-01), Ohya
patent: 4505321 (1985-03-01), Zeller
Ninomiya Takeyoshi
O-hashi Wataru
Temma Masami
Tsutsumi Kazuhiko
Godici Nicholas P.
Heinrich Samuel M.
Nippon Steel Corporation
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