Abstract: A method and apparatus for making a molten film of metal, in particular a steel film, more uniform by strip casting, in which the molten material which is applied to a revolving belt is to have a thickness and properties which are as uniform as possible across the width of the film. To make the film more uniform over its width, forces are introduced into the metal film with a component which is directed oppositely to the direction in which the film is conveyed, which forces make the profile of the molten film of metal more uniform.

Abstract: A process for producing slabs having a thickness D>100 mm, at casting speeds v<3 m/min, in a continuous casting installation in which melt is supplied to a permanent mold from a storage reservoir via an immersion nozzle and from which, on the aperture side, a strand shell enclosing a liquid crater is withdrawn into a strand guidance frame, in particular a bow-type continuous casting installation. The melt supplied enters the permanent mold at a speed (vK) whose relationship with respect to the strand withdrawal speed (vB) is: vK:vB=6:1 to 60:1, and the flow filaments of the melt supplied are guided in such a way that, with regard to the melt level, they penetrate into the liquid crater over a length L<2 m over a wide front and with a profile which is rectangular in cross section.

Abstract: The invention relates to a method for homogenizing a molten metal film, more particularly a steel film, by means of thin strip casting. According to the invention, the melt applied to a rotating strip is of a similar thickness to and possesses the same qualities wherever possible as the width of the strip. In order to homogenize the width of the strip, forces possessing a component perpendicular to the direction of conveyance of the strip are introduced, whereby homogenization of the profile of the molten metal film occurs.

Abstract: The invention relates to a process for producing slabs having a thickness D>100 mm, and at casting speeds v<3 m/min, in a continuous casting installation in which melt is supplied to a permanent mold from a storage reservoir via an immersion nozzle and from which, on the aperture side, a strand shell enclosing a liquid crater is withdrawn into a strand guidance frame, in particular a bow-type continuous casting installation.

Abstract: A strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.

Abstract: Disclosed is a method and apparatus for making a molten film of metal, steel, in particular a steel film, more uniform, by strip casting, in which the molten material which is applied to a revolving belt is to have a thickness and properties which are as uniform as possible across the width of the strip. To make the strip more uniform over its width, forces are introduced into the metal film with a component which is perpendicular to the direction in which the strip is conveyed, which forces make the profile of the molten film of metal more uniform.

Abstract: A method and a belt casting device for producing thin billets, in particular composed of steel, has an endless belt to which liquid metal is supplied via a feed device which has a casting channel and is connected to a metallurgical vessel. In this case, the feed device is in the form of a casting channel which has a first casting channel part in the form of a restriction channel part, and which has a second casting channel part whose opening faces the endless belt and whose size corresponds to the cross-sectional area of the finished product. The feed device is connected to a container to which liquid melt can be fed from a metallurgical vessel. Measurement elements are provided, which can be used to detect the level of the liquid melt in the container and/or the thickness of the billet located on the endless belt. Furthermore, the measured values are connected via a measurement and control element to an actuator which is connected to an element for adjusting the outlet rate from the metallurgical vessel.

Abstract: The invention relates to a method and a device for the production of a strip-like metallic composite material by the high-temperature dip coating of a metallic carrier strip, consisting of a metallurgic vessel for receiving the liquid depositing material, through which the carrier strip is capable of being led in a preferably vertical run-through direction by means of pairs of rollers arranged on the entry and the exit side, and of a preheating device for the carrier strip, said preheating device being located upstream of the metallurgic vessel. At the same time, the preheating device (41) is arranged in a housing (61) which is arranged in the entry region upstream of the metallurgic vessel (11) and surrounds the carrier strip (21) and into which the medium coming from a media supply (52) is capable of being introduced via at least one feed (51) led into the housing.

Abstract: A strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.

Abstract: A method and a device for the casting of rectangular billets from metal, in particular from steel, close to final dimensions, and for the subsequent inline rolling out of the billet, with a material supply vessel, via the outlet nozzle of which the liquid metal is deposited onto the upper strand of a conveyor belt, on which it solidifies and is transferred to a roll stand for forming, characterized by the following steps: a) before the start of casting aa) the point at which the liquid metal is deposited onto the conveyor belt is predetermined approximately, ab) the conveying speed of the conveyor belt is set as a function of the desired rolling thickness and rolling speed of the roll stand, b) during casting ba) the position of thorough solidification of the metal billet located on the conveyor belt is detected, bb) the temperature of the rolling stock is detected in the region of the roll stand, and bc) the position of thorough solidification and the temperature of the rolling stock are used as contr

Abstract: A method and a casting nozzle for starting the casting of a metal strip close its final dimensions. The method includes leading a melt via a melt-feed vessel into a pouring chamber of a siphon vessel. The melt from the pouring chamber is led onto a cooled transport belt via casting nozzle and a main chamber of the siphon vessel which can be put under vacuum. The pouring chamber and the main chamber of the siphon vessel are filled with the melt up to a top of the siphon. Before the melt flows over the top of the siphon a vacuum is induced in the main chamber by actuating a vacuum device connected to the main chamber. After the melt has flowed over the top of the siphon the melt stream is led through the casting nozzle so that the nozzle cross-section closes in the manner of a plug. The vacuum is increased depending on position of the plug in the casting nozzle until there is in the melt stream a hydraulic connection between the steam inlet and the stream outlet.

Abstract: An immersion nozzle of a metallurgic vessel which is arranged upstream of a continuous casting mold and which is constructed as a single-piece structural component part and has, in the mouth area, a slit-shaped pour-out opening whose length is several times greater than its width. The immersion nozzle has a cylindrical shape with a circular, oval, or bone-shaped cross-sectional shape, and the slit-shaped pour-out opening is constructed as a continuous slit extending in the base and the side wall of the cylindrical part of the immersion nozzle.

Abstract: The invention relates to a strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.

Abstract: The invention relates to a process and a device for controlling the flow dispersion of a molten metal, in particular steel, which is conveyed from a melt container via a first immersion outlet part which has a polygonal, oval or circular cross-section, and an intermediate member through the second immersion outlet part which has an elongate cross-section, and flows into a stationary mold to produce slabs. The process is characterized by the following steps: (a) the central volume flow is reduced in the intake region of the second outlet part; (b) at the same time the angle of expansion (&dgr;) of the fluid jet is increased to such an extent that the return flow in the lateral region of the intermediate member and the second immersion outlet part is substantially stopped; and (c) when the melt leaves the second immersion outlet part, it flows at a velocity profile with velocity vectors which are smaller in the opening center than the regions of the small faces.

Abstract: A strip casting plant with a circulating belt. In the cooling area, the belt is sucked against carriers by a negative pressure in the cooler. The carriers are arranged so that, with given mechanical properties of the circulating belt, a deflection that compensates for the thermal elongation takes place between the supporting surfaces of the carriers.

Abstract: The cast steel strip must be supported, particularly after the casting device, to reduce stresses and mechanical deformations. A flexible support element, in particular, a chain with rolls, whose length can be changed by suitable adjustment devices, is arranged for the purpose of support after the casting device.

Abstract: A supporting arrangement for the transport belt in thin strip casting plants. The liquid steel is cast onto the circulating transport belt. On its underside, the transport belt has devices for generating a negative pressure and for supporting the belt as well as for cooling. In the past, rollers were used for supporting the belt. Between the supporting points of the belt on the rollers, upward curvatures of the belt may occur. This is avoided by the use of supports of which the spacings measured transversely to the transporting direction are greater than the lengths of the supports in this direction.

Abstract: A nozzle for thin strip casting plants, especially for steel strip. In casting plants of this type, the liquid steel must be applied on a carrier from the nozzle forming a casting gap. At least one primary coil and a secondary coil are arranged at the nozzle, wherein the secondary coil is water-cooled and projects into the area of the casting gap.

Abstract: Disclosed is a method and apparatus for a metal melt, especially steel, into a vertically oscillating mold via a tundish or intermediate vessel provided with an immersion nozzle to generate endless strands, especially thin strands of steel wherein the intermediate vessel has an open first chamber and a closed second chamber. The metal melt is supplied from the casting ladle to the first open chamber. The second chamber is connected with a vacuum device. An immersion pipe, which projects into the mold and which can be vertically oscillated, is provided in the base of the second chamber.

Abstract: An immersion nozzle for pouring molten metal, especially steel, from a pouring vessel into a mold of a continuous casting machine. The nozzle includes a substantially tubular upper part that can be attached to the pouring vessel and a lower part that has a broad side significantly larger than its narrow side at the opening end. The upper part has, at the end facing the lower part, a flared section that encircles the entry area of the lower part. A seal is provided between the upper part and the entry area of the lower part. The lower part has a support in the entry area. Holding elements are provided so as to touch the support of the lower part and connect the lower part to the upper part.