Metal founding – Including vibrator means – In continuous casting mold
Patent
1996-02-07
1998-06-30
Hail, III, Joseph J.
Metal founding
Including vibrator means
In continuous casting mold
164478, B22D 1104
Patent
active
057719578
DESCRIPTION:
BRIEF SUMMARY
CROSS-REFERENCE TO RELATED APPLICATION
This application is A 371 of PCT/DE94/01432, filed Nov. 25, 1994.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a device for the continuous casting of steel.
2. Discussion of the Prior Art
Such a device is known from DE OS 22 48 066. That device consists of a continuous casting mold developed as an ingot mold so that, in particular in the case of slab molds, no adjustment in the width of the slab is possible. As a result, storage is very expensive since a special mold is necessary for each form of slab. Furthermore, the springs which support the mold and the drive units for the oscillation must be dimensioned very large since the entire mold, and therefore the actual shaping walls including the cooling system, must be supported and moved.
From EP 0 468 607 A1 it is already known to separate the shaping walls from the cooled holding frame so as to relieve the drive and to have spring elements which are dimensioned to be as small as possible.
On the other hand, a controlled hydraulic drive system for continuous casting molds is known from DE 35 43 790 C2 with which twist-free guidance of the mold with respect to the cast billet is striven for.
SUMMARY OF THE INVENTION
The object of the present invention is to achieve a further simplification and improvement of the oscillation of the mold.
Pursuant to this object, the inventive device includes a support frame and springs which are fixed to the support frame at their ends so that the springs are transverse to the casting direction of the device. A continuous casting mold is mounted on the spring so as to oscillate in the casting direction and oscillating drive means are connected to the support frame for oscillating the continuous casting mold. The oscillation drive means includes servo-hydraulic cylinders fixed to the support frame in a longitudinal sectional plane which passes through the continuous casting mold laterally adjacent the continuous casting mold so that the cylinder is free of play. Furthermore, the continuous casting mold is fastened to the springs at a single point or location.
Pursuant to a further embodiment of the invention, the continuous casting mold is an arc-type mold having a curved longitudinal axis. The springs are arranged in a region of a top edge and a bottom edge of the continuous casting mold and are aligned in a lengthwise direction on a straight line which passes through a center of curvature of the longitudinal axis of the mold, parallel to a longitudinal sectional plane of the mold.
Still another embodiment of the invention has the single point at which the continuous casting mold is fastened to the springs displaced from a center point between the frame-side intersection points of the springs towards a center of curvature of the curved longitudinal axis. The servo-hydraulic cylinders have piston rods that are fastened to a lower edge of the mold in a stroke direction of the piston rods.
In yet another embodiment of the invention the piston rod has an upper end that is fastened to the springs, which upper end is configured as a spring element.
A further embodiment of the invention has the continuous casting mold formed by wide-side plates and narrow-side plates that are clamped between the wide-side plates. The narrow-side plates are fastened to fastening blocks and the servo-hydraulic cylinders are connected to the support frame by a bracket. The spring element of the piston rod is fastened to the bottom side of the fastening blocks to which the narrow-side plates are fastened.
In still another embodiment, means are provided for clamping the springs to the top and bottom sides of the fastening blocks. The ends of the springs are held in clamping blocks which are mounted on the support frame and the clamping blocks are mounted to fastening supports that arranged on the support frame reference to the drawings, which show the principle of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a device for continu
REFERENCES:
patent: 5202134 (1993-04-01), Moellers et al.
patent: 5350005 (1994-09-01), Sorimani et al.
Bocher Gerhard
Paris Hans-Joachim
Schmidt Otto Alexander
Siemer Hans
Von Wyl Horst
Hail III Joseph J.
Lin I.-H.
Mannesmann Aktiengesellschaft
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