Abstract:
A device for continuously casting steel includes a continuous casting mold supported in a lifting table and oscillating in the casting direction and at least one oscillation drive acting on the lifting table. The lifting table is constructed with guide blocks extending underneath the plane of the table and a stationary clamping block is arranged between the guide blocks. At least two individual resiliently soft plate springs are mounted along the short sides of the mold underneath the table plane in both sides of the clamping block and extending between the clamping block and the adjacent guide block, wherein the plate springs are arranged at a distance one above the other and so as to extend parallel relative to the corresponding plate springs arranged at the opposite short side of the mold.
Abstract:
A method for adjusting a roll segment of a strand guide of a slab-casting installation against a strand, wherein the roll segment has an upper and a lower roll support that each have an adjusting element for adjusting the two roll supports relative to each other. The method includes individual control of the individual adjusting elements, wherein the actual profile of the strand, including the heights of the right and left lateral edges of the strand, is detected and compared with a set profile that includes a predetermined set height, which is the same for the right and left lateral edges, and the individual adjusting elements of the roll segment are individually controlled based on the control deviation that results from the comparison so that the actual profile is adapted to the set profile, including equalization of the heights of the right and left lateral edges of the strand.
Abstract:
A device for the hydraulic positioning of structural component parts, in particular rollers of strand guide segments of a continuous casting installation, with hydraulic cylinders, each of which is divided into a cylinder space and an annular cylinder space by a piston having a piston rod. The cylinder spaces can be connected to a pressure source by of control members. Hydraulic connection lines are reduced or components used are reduced. Either the annular cylinder space is acted upon by a pressure which is adjustable but which then remains constant, while the pressure applied to the piston in the cylinder space is position-controlled or pressure-controlled, or the cylinder space is acted upon by a pressure which is adjustable but which then remains constant, while the pressure applied to the piston in the annular cylinder space is position-controlled or pressure-controlled.
Abstract:
A strand guide for a cast strand has a first roller bridge to one wide side of the cast strand and having ends defining two first section corners, a first fixed support adjacent the first roller bridge, a second roller bridge to the opposite wide side of the cast strand and having ends defining two second section corners, and a second fixed support adjacent the second roller bridge. Respective rows of rollers are rotatably mounted on each of the first and second roller bridges for engaging the respective wide sides and thereby supporting and guiding the cast strand. Respective first and second hydraulic positioners connect the first and second corners of the first and second roller bridges to the first and second fixed supports for individual positioning the rollers of the first and second roller bridges symmetrically or asymmetrically relative to the neutral phase of the cast strand.
Abstract:
The invention relates to a strand guide (1), in particular for a steel slab continuous casting installation having a number of segments (2) which support a strand (3) on two opposite sides (4, 5) with support elements (6, 7), wherein the support elements (6, 7) are arranged in a lower frame (8) and an upper frame (9), wherein the frames (8, 9) are formed to guide the strand (3) in a conveying direction (F). In order to be able to optimally adjust the strand support and to make it easier to change segment frames, the invention provides means (10) which can be used to adjust the upper and the lower frames (8, 9) relative to one another in the conveying direction (F).
Abstract:
The invention relates to a strand guiding unit and a method for positioning at least one roll segment of a strand guiding unit against a strand, the roll segment (110) comprising an upper and a lower roll support (114, 112), each of which bears at least one roll (116, 118) for guiding the strand (200) between the rolls. When viewed in the direction of the material flow, at least one respective positioning element is allocated to the tight-hand and left-hand side of the roll segment in order to position the two roll supports (112, 114) in relation to one another. The aim of the invention is to relieve the mechanical stress on a rolling frame that is connected downstream of the strand guiding unit, to relieve said frame of some of its previous tasks and to improve the quality of the strand. To achieve this, the separate positioning elements are individually controlled in such a way that the heights (Hr, Hl) of the right-hand and left-hand edges of the strand (200) are identical.
Abstract:
The invention relates to a method and a device for driving support rollers (7c) on a continuous casting machine for molten metals, in particular, for molten steel materials, comprising a strip guide (7) of electrically-driven individual drive support rollers (7c) or hydraulically adjustable strip support roller segments (9) for the improvement of a load equilibration control (12), whereby a total drive moment for all drives (10), determined from the normal force of the driven drive support rollers (7c) is proportionately transmitted to each drive support roller (7c) and a static base setting for the torque distribution is used as the basis for the load capacity of each drive support roller (7c).
Abstract:
A device for accommodating a continuous casting mold (1) on an elevating table for casting molten metals, in particular molten steel materials, which is set in an oscillatory motion with several hydraulic oscillation drives, is modified from having two separate elevating table sides so that the elevating table (8) is formed as one-piece frame-shaped table with an inner space (8a) for passing through the cast strand (4) and correspondingly dimensioned, and in that the oscillation drives (3) are arranged in corners (8b) inside a frame surface (8c) and are controlled in a fully synchronized manner with a lateral pairwise offset with regard to an arched, or together, for a perpendicular straight, draw-out movement.
Abstract:
In a method for changing the section of a billet of a continuous casting plant during continuous casting, wherein opposed sides of the billet are in contact with oppositely positioned roll supports arranged below a continuous casting die, wherein the roll supports are comprised of segments having rolls, wherein adjoining ones of the segments of each roll support are connected to one another by a jointed connection and wherein each segment is configured to be adjustable independent of the other segments with respect to an angular position relative to the billet, and wherein in an initial position the segments of the roll supports are adjusted to a uniform billet section, a thickness reduction can be achieved by advancing sequentially in a direction of continuous casting the segments toward the billet by moving the jointed connections toward the billet in a controlled sequence of adjusting steps or a thickness increase can be achieved by moving sequentially in a direction of continuous casting the segments away from the billet by moving the jointed connections away from the billet in a controlled sequence of adjusting steps.
Abstract:
The present invention relates to a strand guide (1), in particular for a steel slab continuous casting installation, comprising a number of segments (2) that support a strand on two opposite sides (4, 5) thereof with support elements (6, 7), wherein the support elements (6, 7) are arranged in at least one lower frame (8) and at least one upper frame (9) for guiding the strand (3) in a conveying direction, and wherein the frames (8, 9) are arranged on at least one central bar (10). In order to facilitate exchange of segments or their parts, according to the intention there is available means (11) with which the at least one upper and/or at least one lower frame (8, 9) can be adjusted relative to the at least one central bar (10) in a conveying direction (F) or in opposite direction.