Abstract: Methods for producing flat steel product with a yield strength of at least 700 MPa and an at least 70% by volume bainitic microstructure may comprise several steps. For example, one method may involve smelting a steel melt including in percent by weight 0.05-0.08% C, 0.015-0.500% Si, 1.60-2.00% Mn, 0.025% P, up to 0.010% S, 0.020-0.050% Al, up to 0.006% N, 0.40% Cr, 0.060-0.070% Nb, 0.0005-0.0025% B, 0.090-0.130% Ti, unavoidable impurities, and Fe. The may further involve casting the melt to give a slab, reheating the slab, rough-rolling the slab, hot finish-rolling the rough-rolled slab, cooling the hot-finish-rolled flat steel product within ten seconds of hot finish-rolling, and coiling the hot-finish-rolled flat steel product.

Abstract: A flat steel product having a tensile strength of at least 1200 MPa and consists of steel containing (wt %) C: 0.10-0.50%, Si: 0.1-2.5%, Mn: 1.0-3.5%, Al: up to 2.5%, P: up to 0.020%, S: up to 0.003%, N: up to 0.02%, and optionally one or more of the elements “Cr, Mo, V, Ti, Nb, B and Ca” in the quantities: Cr: 0.1-0.5%, Mo: 0.1-0.3%, V: 0.01-0.1%, Ti: 0.001-0.15%, Nb: 0.02-0.05%, wherein ?(V, Ti, Nb)?0.2% for the sum of the quantities of V, Ti and Nb, B: 0.0005-0.005%, and Ca: up to 0.01% in addition to Fe and unavoidable impurities. The flat steel product has a microstructure with (in surface percent) less than 5% ferrite, less than 10% bainite, 5-70% untempered martensite, 5-30% residual austenite, and 25-80% tempered martensite, at least 99% of the iron carbide contained in the tempered martensite having a size of less than 500 nm.

Abstract: Improved casting powders and improved casting slags enable production of steels having high aluminum contents of greater than or equal to 1% by weight and, in some cases, high manganese content of greater than or equal to 15% by weight. In some examples, such steels may also or alternatively include greater than or equal to 0.2% by weight titanium. The casting slag may result from a casting powder that comprises CaO and Al2O3 components essentially in the form of prefused calcium aluminate. Methods for casting steel, including methods for continuously casting steel, are also disclosed based on the use of the disclosed casting powders or casting slags.

Abstract: A construction element may include two metallic covering layers and a non-metallic core layer arranged between the two metallic covering layers. The non-metallic core layer between the two metallic covering layers may be formed from a silicone-containing material that includes deoxidative elements and/or deoxidative alloys that are dispersed in an amount of between 0.1 and not more than 5% by weight based on the non-metallic core layer. Some example deoxidative elements include Ca, Mg, Al, Ti, Si, Mn, Cr, Ce, La, Nb, Ta, V, and Zn. Some example deoxidative alloys include ferrosilicon, ferrocalcium silicon, or ferromanganese. The construction element is suitable for, amongst other things, fusion welding and/or hot-soldering.

Abstract: The present invention relates to a device for partial decoating and/or machining removal of a steel sheet coated with a metal coating and/or provided with a parasitic layer, wherein the device has a machining tool in the form of a scraping roller and wherein the scraping roller comprises a cutting edge for scraping the metal coating and/or parasitic layer off the steel-sheet surface, and wherein furthermore the scraping roller is rotatable about a rotation axis perpendicular to a main plane of extent of the steel sheet, the scraping roller has a circumferential face which is concentric with the rotation axis and in which at least one circumferential groove is formed, the groove has two lateral groove boundary faces that originate from the groove bottom face, wherein at least one of the two groove boundary faces has the cutting edge and the device is configured such that during decoating and/or machining removal, the at least one cutting edge scrapes over the steel-sheet edge in a manner parallel to the main p

Abstract: The invention relates to a device and method for producing flanged drawn members from a planar and/or pre-shaped plate of metal using a drawing punch having at least one cutting edge or rounded portion, a retention member and a drawing die, wherein the drawing die has a rib region, a flange region and a support region for the plate, the plate being placed on the support region of the drawing die and being shaped into the drawn member by the drawing punch being introduced into the drawing die and at the same time being cut at the flange region.

Abstract: A method for resistance spot welding a metallic material to a sandwich material that includes a plastic core layer with two metallic cover layers may involve positioning a first electrode onto a surface of the metallic material, positioning an opposing second electrode onto a surface of the metallic cover layer that is apart from the metallic material, heating a region to be welded in such a manner that the plastic core layer in the region to be welded softens, moving the electrodes together to displace the softened plastic from the region to be welded until the two cover layers make contact with one another in a contact region, and welding the metallic cover layers to the metallic material in the contact region by a flow of electrical current across the first and second electrodes. A device by way of which a simple structure with a limited heat-affected zone is also disclosed for performing such methods.

Abstract: The invention relates to a support device for a curved mirror having support elements and a curved mirror. The objective of providing a support device for a curved mirror which is constructed in a particularly simple manner and which enables particularly low production costs is achieved by a support device in that the support device has at least one bent metal carrier profile-member, the bent carrier profile-member having in the longitudinal direction an at least similar curvature to the curved mirror and being substantially mirror-symmetrical in the longitudinal direction.

Abstract: A non-grain-oriented electrical steel strip or sheet consisting of a steel which contains, in addition to iron and unavoidable impurities, (in wt. %) Si: 1.0-4.5%, Al: up to 2.0%, Mn: up to 1.0%, C: up to 0.01%, N: up to 0.01%, S: up to 0.012%, Ti: 0.1-0.5% P: 0.1-0.3%, wherein 1.0?% Ti/% P?2.0 applies for the % Ti/% P ratio. The NGO sheet or strip can be manufactured by cold rolling a hot strip of a steel having the previously mentioned composition into a cold strip and subjecting this cold strip to a final annealing process. Different variants of this final annealing process may be used to accentuate the properties of the strip or sheet. The non-grain-oriented electrical steel strip or sheet and components manufactured from such a sheet or strip for electrotechnical applications are characterized by increased strength and good magnetic properties.

Abstract: One bumper system for a vehicle includes a bumper bracket and a deformation element connected to the bumper bracket. The bumper bracket is composed of a metallic workpiece with an undulating form such that the bumper bracket has at least one undulation trough and at least two undulation peaks, and reinforcement zones are formed in regions of the undulation trough. Another bumper system for a vehicle includes a bumper bracket and a deformation element connected to the bumper bracket. The bumper bracket has an undulating form such that the bumper bracket has a plurality of undulation troughs and a plurality of undulation peaks, and reinforcement zones are formed in each undulation trough. In each system, a second deformation element may be connected to the bumper bracket, and at least one characteristic of the reinforcement zones may increase or decrease between the deformation elements and a middle of the bumper bracket.

Abstract: A method by which a flat steel product containing 2-35 wt. % of Mn can be provided with a coating of Zn which adheres well by annealing at an annealing temperature Ta of 600-1100° C. for an annealing time of 10-240 s under an annealing atmosphere which has a reducing effect on the FeO present on the flat steel product and an oxidizing effect on the Mn contained in the steel substrate thereby forming a layer of Mn mixed oxide which covers the flat steel product at least in sections and then cooling the flat steel product to a temperature for bath entry and conveying it through a bath of molten Zn saturated within iron at a temperature of 420-520° C., within a dip time of 0.1-10 s.

Abstract: Methods for producing a rotationally symmetrical, hollow metallic workpiece may involve rotating a casting mould about a rotation axis and introducing a melt into the casting mould. The melt may be thrown towards an inner contour of the casting mould by centrifugal forces, and hollow bodies may be added to the melt. Furthermore, a device for producing a rotationally symmetrical, hollow metallic workpiece may include a casting mould that is rotatable about a rotation axis, a feeder device for introducing a melt into the casting mould such that the melt is thrown towards an inner contour of the casting mould by the effect of a centrifugal force, and a metering device for adding hollow bodies to the melt.

Abstract: The disclosed flat steel products have optimal mechanical properties such as high strength and good toughness, but are also well-suited for welding and other manufacturing processes. The steel products may have a ferrite-free microstructure with at least 95% by volume martensite and bainite, with a martensite content of at least 5% by volume, and no more than 5% by volume residual austenite and unavoidable microstructure constituents from the production process. In addition to iron and unavoidable impurities, a composition of the flat steel products may include in percent by weight: 0.08%-0.10% C, 0.015%-0.50% Si, 1.20%-2.00% Mn, 0.020%-0.040% Al, 0.30%-1.00% Cr, 0.20-0.30% Mo, 0.020-0.030% Nb, 0.0015-0.0025% B, up to 0.025% P, up to 0.010% S, and up to 0.006% N. Impurities can include up to 0.12% Cu, up to 0.090% Ni, up to 0.0030% Ti, up to 0.009% V, up to 0.0090% Co, up to 0.004% Sb, and up to 0.0009% W.

Abstract: A process for producing a three-dimensionally shaped steel component from a steel sheet with a metallic coating may involve hot forming the steel sheet into the steel component. The metallic coating may involve an Fe—Al-based alloy. To protect the steel sheet or the steel component against scale formation, the Fe—Al-based alloy may be applied directly to the steel sheet by galvanic coating and/or physical vapor deposition. The coating produced in this way may contain 30-60% by weight Fe, a balance of Al, and, in some cases, 0.1-10% by weight Mg, 0.1-5% by weight Ti, 0.1-10% by weight Si, 0.1-10% by weight Li, and/or 0.1-10% by weight Ca. Before heating the coated steel sheet as part of the hot forming process, the coated steel sheet may have an Fe—Al phase is stable to above 900° C.

Abstract: The invention relates to a method for hot forming semi-finished products of steel, in which the semi-finished product is heated to the forming temperature, is conveyed to the forming tool, and in the forming tool is hot formed, hardened or press hardened. The object of proposing a method for hot-forming semi-finished products of steel, in which also extremely thin-walled blanks may be conveyed at the forming temperature without issues and be fed to the forming tool properly and without limiting the degree of forming of the semi-finished product, is achieved in that prior to hot forming, hardening or press hardening, at least one structure which increases rigidity at least is incorporated in the semi-finished product, and the structure which increases rigidity of the semi-finished product is at least partially or completely disposed in the trimming region of the semi-finished product.

Abstract: The invention relates to a bumper for a motor vehicle, in particular a front bumper, having at least two deformation bodies which are at a distance from one another and of which the center or longitudinal axes, in the mounted state, are oriented substantially parallel to the direction of travel of the motor vehicle, and having a plurality of crossmembers which have a closed profile and which are arranged one above the other and are connected to the deformation bodies. The crossmembers are formed from a group of at least three crossmembers, wherein the respective crossmember of the group has a cross-sectional profile which comprises at least five corners.

Abstract: A method and a device for coating may involve continuously supplying a precursor, in some cases at a constant precursor level, to a plurality of coating modules. As a result, a continuous coating operation is ensured. Moreover, one such method for supplying a precursor to a plurality of coating modules of a coating device may be employed where, for example, the coating modules have a pick-off device and a supply line, the supply line which may be configured as a riser at least in some regions. Precursor may be supplied by the supply line to the pick-off device of the coating module.

Abstract: Methods and devices for joining a composite panel, which may comprise a non-metallic intermediate layer disposed between two external metallic cover layers, to a further component are disclosed. The composite panel and the further component may be disposed so as to at least partially overlap. The object of economically and reliably joining composite panels may be achieved in that by way of a positioning unit, at least one auxiliary joining element is brought to bear on the composite panel and is fixed to the composite panel. The composite panel in a region of the at least one auxiliary joining element may be subsequently joined to the further component.

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: The invention relates to a device for strip guidance in a hot medium, comprising a deflection roller (3, 38) mounted on supporting arms (1, 2, 34, 37, 54, 57) and a carrier device holding the supporting arms (1, 2, 34, 37, 54, 57). The device is characterized in that one of the supporting arms (1, 2, 34, 37, 54, 57) is mounted on the carrier device by means of a floating bearing (5), wherein the floating bearing (5) allows the mounted supporting arm on the carrier device to move parallel to the longitudinal direction of the deflection roller (3, 38), and in that an elastic counter element (12), which acts parallel to the longitudinal direction of the deflection roller (3, 38) upon the supporting arm (1, 2, 34, 37, 54, 57) mounted on the floating bearing (5), is present and counteracts an increasing distance between the supporting arms (1, 2, 34, 37, 54, 57).