Abstract: The invention relates to a continuous casting mold, in particular a thin slab mold in which the flow of a liquid metal in the mold is influenced by a magnetic field generated by permanent magnets, wherein the permanent magnets have, over the width and/or height thereof, different magnetic strengths or are spaced from each other by different distances for a different field strength, so that to provide for variation of the magnetic field strength, the permanent magnets are differently adjusted in groups for changing a field strength distribution.

Abstract: An arrangement for maintaining the warmth of slabs which exit from a continuous casting installation and which can be transported on a roller table for further processing. In order to optimize the thermal balance between the continuous casting installation and the hot rolling mill, a supporting part is provided for receiving a slab, which supporting part can be placed on the roller table and transported thereon, and an insulating box which can be placed upon the supporting part and which substantially encloses the latter.

Abstract: A method for controlling foamed slag in a stainless melt in an electric arc furnace. Slag level in the electric arc furnace is continuously detected thermographically as a function of time and slag level, and an addition of foaming material is controlled depending on the temperature and temperature gradient.

Abstract: A method for producing semi-finished product, particularly steel strip, having a dual-phase microstructure and a tensile strength between 500 and 1000 MPa. Elements such as carbon and nitrogen which are interstitially dissolved in a ferritic matrix are bound by alloying elements such as Al, Mo, Nb, Ti and V which form carbide, nitride or carbonitride in order to adjust a microstructure of hard components such as martensite, bainite, carbide with low fractions of residual austenite in a ferritic matrix, which is substantially free from interstitially dissolved elements (IF character).

Abstract: A process for predicting longitudinal cracks during continuous casting of steel slabs. The local strand temperature is measured by thermocouples distributed in the mould wall. In this process, the risk of the strand rupturing as a result of longitudinal cracking is assessed statistically taking into account the current temperature values measured by the thermocouples arranged in the mould and the temperature values determined when no cracks are present.

Abstract: A process for producing a foamed slag on austenitic stainless melts in an electric arc furnace. A mixture of metal oxides and carbon is introduced into the furnace, the metal oxide is reduced by the carbon below the slag at the metal/slag interface, and the resulting gases bring about the foaming of the slag by bubble formation. The mixture to be charged, which is added in the form of preforms such as briquets or pellets, contains iron oxide, iron carriers, carbon and the required binders in addition to nickel oxide.

Abstract: A cooling element for cooling the refractory lining of a metallurgical furnace. A cooling element is to be provided which prevents coolant from entering the interior of the furnace while maintaining a good cooling action. This is achieved by a cooling plate which faces the refractory lining, a heat-conducting plate which is arranged at an angle to the latter, which is fixedly connected to the cooling plate and extends out of the furnace wall. The cooling plate and the heat-conducting plate are made of solid material. A coolant channel which is fixedly connected to the heat-conducting plate is connected to a coolant input and a coolant output.

Abstract: A rolling installation for the rolling of in-process stock in the form of strip having a first reel, a second reel, with at least one stand between the reels, and with assigned coil transport trucks. Each reel is designed as a reversing reel, namely as an uncoiling and coiling reel.

Abstract: A device for adjusting the distance of stripper chisels from a circumference of work rolls supported in chocks of a roll stand, wherein the stripper chisels are movable parallel to the rolling line in direction towards and away from the roll gap. To adapt to different operating positions and diameters of the work rolls, the stripper chisels are arranged in a horizontally displaceable stand roller table. The movement of the stand roller table is linked with the vertical movement of the bottom work roll so that the stripper chisel can be moved away from the work roll when the bottom work roll moves upward, and vice versa.

Abstract: A device for transferring continuous cast slabs arranged parallel to and equidistant from one another to an individual production line arranged in extension of one of the continuous casting strands, wherein the cycle time for transferring and conveying the slabs is to be reduced. This is achieved by a ferry which is movable transversely by steps between the ends of the continuous casting strands and the start of the production line and which has berths serving for receiving and delivering the slabs substantially simultaneously.

Abstract: A method for the indirect determination of the waste gas rate in metallurgical processes. A reference gas such as helium is first added to the waste gas, specifically at a time which, with respect to flow, sufficiently precedes the taking of a sample such that a thorough mixing of the reference gas and waste gas is carried out, i.e., a virtually homogeneous distribution is achieved, and a quantitative helium analysis and nitrogen analysis of the waste gas, measured by a mass spectrometer, is carried out while taking into account the added amount of helium.

Abstract: A roll stand for rolling metallic strips comprises at least one roll or cylinder which is respectively mounted in a mounting on rolling bearings in the region of its end journals, and at least one distributing device for distributing a lubricant-gas flow. The roll stand according to the invention makes it easily possible in an operationally reliable manner to supply a rolling bearing, provided for mounting a roll or cylinder, with a precisely determined amount of lubricant. This is achieved according to the invention in that a connecting channel for the transport of a lubricant-gas flow to or from the distributing device is molded into the roll or cylinder.

Abstract: A method for the detection and classification of surface defects on continuously cast products using topographical information about the appearance of continuously cast surface defects and/or flaws are determined with respect to their exact position, evaluated with respect to their location and dimensions, and eliminated in accordance with the evaluation prior to further machining of the product, or are prevented by optimizing the process. The defects and/or flaws on the slab surface of the continuously cast preliminary product are detected and are stored with respect to their exact position and a detection of defects and/or flaws on the finished product is carried out and stored with respect to their exact position, and in that the information from the preliminary product is then compared with the information from the surface inspection on the finished product.

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 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 continuous casting mold with two narrow mold sides opposite one another and two longitudinal mold sides opposite one another. At least one of the narrow mold sides is movable toward and away from the other by means of hydraulic cylinders on the opposite narrow mold side. The hydraulic cylinders can be actuated independently from one another and have, in each instance, a cylinder and a piston guided therein. The piston rod of the piston is connected to the narrow mold side that is to be displaced, and a device for acquiring the position of the piston and, therefore, the displacement of the narrow mold side, is associated with at least one of the hydraulic cylinders. To improve the determination of the position of the narrow mold side, a displacement measuring system is arranged parallel to the hydraulic cylinder and constructed such that its measurement path directly corresponds to the displacement of the piston of the hydraulic cylinder.