Abstract: A method for continuous casting of thin slabs may involve feeding a molten metal into a mold, molding a partially solidified thin-slab strand from the molten metal in the mold, reducing a flow rate of the molten metal in the partially solidified thin-slab strand by way of an electromagnetic brake positioned in a region of the mold, and removing the partially solidified thin-slab strand from the mold by way of a strand guiding system. Unsolidified parts of the partially solidified thin-slab strand may be stirred by an electromagnetic stirrer arranged underneath the mold downstream along a strand takeoff direction of the thin-slab strand. Further, a traveling electromagnetic field may be produced by the electromagnetic stirrer in a region of the thin-slab strand that is at a distance from the mold of between 20 and 7000 millimeters along the strand takeoff direction.

Abstract: A method is disclosed for the operationally reliable production of a cold-rolled flat steel product of ?0.5 mm in thickness for deep-drawing and ironing applications. In the method, a steel melt which (in wt %) comprises up to 0.008% C, up to 0.005% Al, up to 0.043% Si, 0.15-0.5% Mn, up to 0.02% P, up to 0.03% S, up to 0.020% N and in each case optionally up to 0.03% Ti and up to 0.03% Nb and, as a remainder, iron and unavoidable impurities, is, with the omission of a Ca treatment, subjected to a secondary metallurgical treatment which, in addition to a vacuum treatment, comprises a ladle furnace treatment and during which the steel melt to be treated is kept under a slag, the Mn and Fe contents of which are, in sum total, <15 wt %. From the steel melt, a thin slab or a cast strip are produced, which are subsequently hot-rolled to form a hot strip with a thickness of <2.5 mm and wound to form a coil. Subsequently, the hot strips are cold-rolled to form a flat steel product of up to 0.5 mm in thickness.

Abstract: A method for continuous casting of thin slabs may involve feeding a molten metal into a mold, molding a partially solidified thin-slab strand from the molten metal in the mold, reducing a flow rate of the molten metal in the partially solidified thin-slab strand by way of an electromagnetic brake positioned in a region of the mold, and removing the partially solidified thin-slab strand from the mold by way of a strand guiding system. Unsolidified parts of the partially solidified thin-slab strand may be stirred by an electromagnetic stirrer arranged underneath the mold downstream along a strand takeoff direction of the thin-slab strand. Further, a traveling electromagnetic field may be produced by the electromagnetic stirrer in a region of the thin-slab strand that is at a distance from the mold of between 20 and 7000 millimeters along the strand takeoff direction.

Abstract: A method is disclosed for the operationally reliable production of a cold-rolled flat steel product of ?0.5 mm in thickness for deep-drawing and ironing applications. In the method, a steel melt which (in wt %) comprises up to 0.008% C, up to 0.005% Al, up to 0.043% Si, 0.15-0.5% Mn, up to 0.02% P, up to 0.03% S, up to 0.020% N and in each case optionally up to 0.03% Ti and up to 0.03% Nb and, as a remainder, iron and unavoidable impurities, is, with the omission of a Ca treatment, subjected to a secondary metallurgical treatment which, in addition to a vacuum treatment, comprises a ladle furnace treatment and during which the steel melt to be treated is kept under a slag, the Mn and Fe contents of which are, in sum total, <15 wt %. From the steel melt, a thin slab or a cast strip are produced, which are subsequently hot-rolled to form a hot strip with a thickness of <2.5 mm and wound to form a coil. Subsequently, the hot strips are cold-rolled to form a flat steel product of up to 0.5 mm in thickness.

Abstract: A method and a device for cleaning a surface of a steel product, wherein a fluid jet is directed from a nozzle, which is located in a position associated with an edge of the surface to be cleaned, onto the surface, wherein, during the cleaning operation, there is produced a relative movement between the nozzle and the steel product and the fluid jet is orientated transversely relative to the direction of the relative movement of the steel product and nozzle. Another nozzle is located in a position which is associated with the edge of the surface, which edge is opposite the edge of the steel product associated with the first nozzle, wherein another fluid jet is directed onto the surface without any overlap, wherein the striking region of the fluid jets is spaced apart from the edge which is associated with the nozzle which produces the fluid jet.

Abstract: A method for producing a grain-oriented electrical steel strip or sheet, in which the slab temperature of a thin slab consisting of a steel having (% wt.) Si: 2-6.5%, C: 0.02-0.15%, S: 0.01-0.1%, Cu: 0.1-0.5%, wherein the Cu to S content ratio is % Cu/% S>4, Mn: up to 0.1%, wherein the Mn to S content ratio is % Mn/% S<2.5, and optional contents of N, Al, Ni, Cr, Mo, Sn, V, Nb, is homogenised to 1000-1200° C. The thin slab is hot rolled into a hot strip having a thickness of 0.5-4.0 mm at an initial hot-rolling temperature of <=1030° C. and a final hot-rolling temperature of >=710° C., with a thickness reduction in the first and in the second hot-forming passes of >=40%. The hot strip is cooled, coiled, and cold rolled into a cold strip having a final thickness of 0.15-0.50 mm. An annealing separator is applied onto the annealed cold strip to form a Goss texture.

Abstract: A method for producing high-quality grain oriented magnetic steel sheet utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.02-0.10%, Al: 0.01-0.065%, N: 0.003-0.015%. The method utilizes an operational sequence whose individual steps (secondary metallurgical treatment of the molten metal, continuous casting of the molten metal into a strand, dividing of the strand into thin slabs, heating of the thin slabs, continuous hot rolling of the thin slabs into hot strip, cooling of the hot strip, coiling of the hot strip, cold rolling of the hot strip into cold strip, recrystallization and decarburization annealing of the cold strip, application of an annealing separator, final annealing of the recrystallization and decarburization annealed cold strip to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

Abstract: A method, which makes it possible to economically produce high-quality grain oriented magnetic steel sheet, utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.01-0.10 %, Mn: 0.02-0.50%, S and Se in contents, whose total amounts to 0.005-0.04%. The method utilizes an operational sequence whose individual routine steps (secondary metallurgical treatment of the molten metal in a vacuum-or ladle facility, continuous casting of the molten metal into a strand, dividing of the strand, heating in a facility standing inline, continuous hot rolling in a multi-stand hot rolling mill standing inline, cooling, coiling, cold rolling, recrystallization and decarburization annealing, application of an annealing separator, final annealing to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

Abstract: A method, which makes it possible to economically produce high-quality grain oriented magnetic steel sheet, utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.01-0.10%, Mn: 0.02-0.50%, S and Se in contents, whose total amounts to 0.005-0.04%. The method utilizes an operational sequence whose individual routine steps (secondary metallurgical treatment of the molten metal in a vacuum—or ladle facility, continuous casting of the molten metal into a strand, dividing of the strand, heating in a facility standing inline, continuous hot rolling in a multi-stand hot rolling mill standing inline, cooling, coiling, cold rolling, recrystallization and decarburization annealing, application of an annealing separator, final annealing to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

Abstract: A method for producing high-quality grain oriented magnetic steel sheet utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.02-0.10%, Al: 0.01-0.065%, N: 0.003-0.015%. The method utilizes an operational sequence whose individual steps (secondary metallurgical treatment of the molten metal, continuous casting of the molten metal into a strand, dividing of the strand into thin slabs, heating of the thin slabs, continuous hot rolling of the thin slabs into hot strip, cooling of the hot strip, coiling of the hot strip, cold rolling of the hot strip into cold strip, recrystallization and decarburization annealing of the cold strip, application of an annealing separator, final annealing of the recrystallization and decarburization annealed cold strip to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

Abstract: The invention relates to a method for producing a hot strip, in particular for producing a hot strip intended for the production of a cold strip with good deep-drawing characteristics; in which a steel melt comprising (in % by weight) C:≦0.07%, Si:≦0.5%, Mn:≦2.5%, Al:≦0.1%, N:≦0.01%, P:≦0.025, B:≦0.05, if need be up to a total of 0.