Abstract: The invention relates to a continuous casting mould for liquid metals, especially for liquid steel, comprising steel charging plates (2) which are surrounded by water reservoirs (1), cassette-type copper plates (3) arranged against the same, end plates (7), if needed, for the thickness and/or the width of the cast billet, and coolant channels (9). The aim of the invention is to take measures to counteract the high temperatures in the meniscus region (13) using appropriate embodiments of the copper plates (3) and/or the steel charging plates (2). To this end, the thickness (10) of the copper plates (3) between the coolant (11) and the hot side (3a) of the copper plates varies along the width (2×L) and/or in terms of the height (12).

Abstract: The invention relates to an electromagnetic braking device for molten steel that flows into a continuous casting mould (1). Said device comprises at least one solenoid (2) with a ferromagnetic core (5) that is allocated to the broad sides (3, 4) of the mould. To reduce the oscillating mass and at the same time increase the strength of the magnetic field, the core (5) consists of a primary part (6) that houses the solenoid (2) and can be displaced at a distance from the broad side walls (3, 4) and attachments (8, 8?) that are fixed in water tanks (7, 7?) of the mould (1). When combined in their operating position, the core parts (6, 8) produce U-shaped yokes (9, 9?) for generating a closed magnetic flux (10) and when moved apart, cause the magnetic flux (10) to be interrupted.

Abstract: A continuously cast strand is subjected to soft reduction between the guide rollers below the mold and between the soft reduction stretch and the mold the strand is subjected to format or thickness reduction between at least one pair of position controlled guide rollers so that independently of the quality of the steel, the casting speed and the spray cooling, the position of the type of the mold cavity and hence the molten steel therein is maintained constant along the soft reduction stretch.

Abstract: The invention relates to a method and casting roller plant for the semi-endless or endless rolling by casting of a metal, in particular a steel strip (1a), which may be transversely separated as required after solidification. The casting strip part lengths (20) are fed to a roller furnace (2) for heating and equilibration at the rolling temperature and the partial lengths (20) for rolling out are fed to a rolling train (3) for rolling, whereby the strip casting is continued uninterrupted during the rolling operation. According to the invention, a closer matching of the strip casting and the rolling can be carried out, whereby the casting speed (Vc) is reduced for a roller change such that between the end of rolling a preceding multiple length (21) and the insertion of a new partial length (20) or multiple lengths (21) into the rolling gear a sufficient buffer time for a roller exchange is provided.

Abstract: A device for continuously casting metals, especially steel, consists of multipleconsecutive segments (1) which each form the strand guide for casting strands of different widths (4), with roller pairs (2). The rollers are rotationally mounted on segment frames (5; 6), these segment frames (5; 6) each being braced with strand guide frames (10) on both sides. The aim of the invention is to reduce profile increases in the cross-section of the casting strand (4d) in the residual solidification area (4b), by providing a power mechanism (13) at least on the fixed side of the segment frame (5) of a segment (1), between the segment frame (5) and a transversal member (11) connecting the strand guide frames (10) on the two sides. Said power mechanism is situated approximately on the middle strand axis. The power transmission element (13a) of the power mechanism acts upon the segment frame (5), while its base (13b) is supported on the transversal member (11).

Abstract: The invention is directed to an immersion nozzle for a metallurgic vessel arranged upstream of a casting device, in particular a continuous casting mold or a twin roller, in which a slit-shaped pour-out opening (2) having a length that is several times greater than its width is provided in the base area. The cross section widens in the direction of its mouth from a round inlet cross section to a mouth cross section whose one semiaxis is smaller than, and whose other semiaxis extending perpendicular thereto is greater than, the semiaxis of the round inlet cross section and whose base shape corresponds to that of the body of revolution of an ellipse or of an oval mouth cross section around the greater semiaxis, and the slit-shaped outlet opening extends in direction of the greater semiaxis.

Abstract: The invention relates to a method of producing cast strands (2) in shapes of billets or ingots wherein the strand (2) is guided between pairs of rollers (4 to n). In their straightening region (A), the strands (2) are formed, with the use of profiled rollers (4 to) with one-sided or multiple-sided projections (h, b) or recesses (?h, b). In the casting direction (10), downstream of the straightening region, the strands are subjected to a soft-reduction with at least one roller pair (7 to 9) with smooth rollers. The invention also relates to a casting machine provided with correspondingly formed rollers.

Abstract: The invention relates to a casting roller (1), for a double-roller continuous casting machine, in particular for the casting of a steel strip, comprising a cylinder sleeve (2) which may rotate about a fixed axle (5). Intermediate rings (7b, 7c, 7d) rotating with the cylinder sleeve (2) are arranged between the cylinder sleeve (2) and the axle (5), which are provided with radial pressure means (9), acting on the cylinder sleeve (2). The above comprise a pressure chamber (10), pressurised with a fluid pressure medium and acting on a pressure ring (24) fixed to the inner wall of the cylinder sleeve (2), which may be deformed in the radial direction by inductive heating or radiated heat. The external profile of the casting roller (1) may be globally altered or local fine adjustments made by pressurizing the pressure chamber (10) with the pressure medium, or by heating the pressure ring (24).

Abstract: In a method for continuous casting bars, billets, and slabs from a melt in dimensional ranges of approximately 20 to 150 mm thickness and approximately 600 to 3500 mm width by means of an oscillating, water-cooled casting mold in cooperation with a submerged-entry nozzle and by employing casting powder for formation of casting slag, local temperatures and local heat flux densities of a casting mold wall in a meniscus area of the melt critical for the surface quality of a slab are measured. The working temperature of the casting mold wall in the meniscus area is maintained by adjusting the operating parameters important for the working temperature within a predetermined temperature range (&Dgr;T).

Abstract: The invention relates to a method for continuously casting ingots, slabs or thin slabs in a continuous casting plant. Said plant comprises strand guide segments (2.1 to 2.n) whose distances from one another can be adjusted underneath an ingot mold (1) and which have roll pairs (4, 4′) that can be subjected to the action of path-controlled or position-controlled hydraulic cylinders. The thickness of the cast strand (5) is reduced by conically adjusting its strand guide segments in a soft reduction line extending up to the crater top. The aim of the invention is to improve the adaptation of the continuous casting plant to different operating parameters. To this end, at least one roll pair (4, 4′) subjects the cast strand (5) to a size reduction in the area of its liquid core (7) between the ingot mold (1) and the soft reduction line (SR line). The invention also relates to a correspondingly designed continuous casting plant.

Abstract: The invention relates to strip casting machines comprised of two parallel casting rollers (1, 2) whose bearing journals (8, 9) are supported on a stand (3). Cooled roll barrels of the casting rollers (1, 2) and narrow lateral parts (5) delimit a casting gap (6). The aim of the invention is to obtain an optimal ratio between the width of the casting machine and the maximally castable strip width, to provide for a simple stand construction both for changing rollers as well as for exchanging narrow lateral parts, and to attain an improved protection against oxidation. To these ends, the invention provides that the cooled roll barrels are constructed as cylindrical casings (4). The casing (4) should be supported on a stationary axle, which is fixed on the stand (3), via the concentric support rings which project inside the casing (4) on both sides and which are connected to the same.

Abstract: A device for continuously casting metals, especially steel, consists of multiple consecutive segments (1) which each form the strand guide for casting strands of different widths (4), with roller pairs (2). The rollers are rotationally mounted on segment frames (5; 6), these segment frames (5; 6) each being braced with strand guide frames (10) on both sides. The aim of the invention is to reduce profile increases in the cross-section of the casting strand (4d) in the residual solidification area (4b), by providing a power mechanism (13) at least on the fixed side of the segment frame (5) of a segment (1), between the segment frame (5) and a transversal member (11) connecting the strand guide frames (10) on the two sides. Said power mechanism is situated approximately on the middle strand axis. The power transmission element (13a) of the power mechanism acts upon the segment frame (5), while its base (13b) is supported on the transversal member (11).

Abstract: The invention relates to a casting roll for casting and/or supporting a cast strand, in particular for a two-roll casting machine Said casting roll comprises a water cooling system, in which the cooling water is supplied and discharged in cooling channels (8), formed by cooling bores or grooves that are distributed over the periphery of the roll and a pressure chamber (10), which borders a roll casing (5) and is connected in an adjustable manner to a hydraulic fluid source. The casting roll prevents a superelevation of the profile and the formation of a wedge-shape over a significant section of the length of the casting roll, as the internal diameter of the roll casing (5) increases, starting from sealing elements (15) up to the centre of the roll and the hollow chamber (16) can be impinged by the hydraulic fluid in order to modify the profile.

Abstract: A continuous slab casting method whereby upstream of a soft reduction portion of a path of the strand and preferably downstream of a liquid core reduction portion, the strand is allowed to bulge by ferrostatic pressure of the liquid core, the bulge being pressed back during the soft reduction stage.

Abstract: A method and an apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab, wherein the profile is determined in accordance with given requirements with respect to its camber or wedge shape by the gap geometry of strand guide rollers of the guide segments of a strand guiding system. The method includes determining the adjustment of the strand guide rollers at least in the area of the residual solidification and the adjusting forces of adjusting means required for this purpose in such a way that a predeterminable desired value for the slab profile can be adjusted for any characteristic state of operation.

Abstract: In a method for changing a billet section of a continuous billet casting device from an initial section to a final section, the opposed billet sides interact with oppositely positioned roll supports of a billet guide arranged below a continuous casting die. The roll supports have segments with rolls, and each segment is individually adjustable with respect to its angular position relative to the billet. A controlled sequence of adjusting steps of the segments successively arranged in a direction of continuous casting is carried out, wherein, for reducing the section of the billet, the segments are advanced successively toward the billet in the continuous casting direction and, and for increasing the section of the billet, the segments are moved successively away from the billet in the continuous casting direction.

Abstract: A method and an apparatus for preventing undesirable intensive cooling particularly of the strip edge areas of a cast strand resulting from running water emerging from the bottom opening of a secondary cooling chamber, wherein high-energy spray jets of a deflection medium are produced and directed against the emerging running water transversely of the strip edge areas of the cast strand, such that the running water is deflected from the strip edge areas and is discharged through outlet openings of the secondary cooling chamber arranged on both sides of the cast strand.

Abstract: A continuous casting mold for manufacturing slabs, particularly for manufacturing thin slabs includes water-cooled short side walls and long side walls, wherein a casting funnel is formed between the long side walls in an area where the long side walls extend parallel to each other and extend outwardly toward the two short side walls and cooling grooves are provided on the other outer or rearward sides of the long side walls. The rearward sides of the long side walls are each reinforced by a wall armor starting at a mold location below the lowest molten metal level, wherein the thickness of the wall armor decreases in the strand casting direction from a greatest thickness at the mold location below the lowest molten metal level.

Abstract: A device for resetting opposite guide segments of a continuous casting or continuous casting and rolling plant in three different positions, and including a hydraulic cylinder connectable with one of the opposite guide segments, and a double-acting piston connectable with another of the opposite guide segments and displaceable in the hydraulic cylinder between three positions corresponding to the three different positions of the guide segments, with the three positions of the piston in they hydraulic cylinder being defined by stop surfaces at least one of which is located inside the hydraulic cylinder and at least one of which is located outside of the hydraulic cylinder.

Abstract: A continuous casting method and apparatus in which a distributor deposits a strand of molten steel upon a cooled surface of casting roll to a thickness of 1.0 to 6.0 mm, the cooling strand passes through the nip or gap between a fist counterroll and the casting roll and hardening strip is then passed through at least a first further nip between one or more further counterrolls and the surface of the casting roll. The height of the molten metal in the distributor is controlled to be constant by detecting the surface of the melt and regulating the outflow from an intermediate receptacle into the distributor and/or from the casting ladle into the intermediate receptacle so that the peripheral speed of the casting roll is matched to the speed with which the strand emerges from the distributor onto the casting roll.