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).

Abstract: A method of activating a metal surface, such as a galvanized steel sheet, before a phosphating process, may involve bringing the metal surface into contact with an activating bath containing activating particles, which may be based on phosphate and/or titanium, dispersed in water. To alleviate or even eliminate the problems of poor adhesion of surface coatings to preferably electrolytically galvanized, phosphated metal strip, an additive that suppresses or at least slows agglomeration of the activating particles may be added to the activating bath. In some examples, polyethylene glycol (PEG) and/or sodium stearate may be added. Further, the particle size distribution of the activating particles present in the activating bath may be determined and the activating bath may be replaced or taken out of operation as a function of the particle size distribution of the activating particles.

Abstract: An apparatus and a method for the treatment of a flat steel product, taking place in throughput. The apparatus includes an indirectly heated annealing furnace chamber, a conveyor device for continuously conveying the flat steel product over a conveyor path leading from an entry to an exit of the annealing furnace chamber, and nozzle arrangements for feeding atmosphere gas, which is reactive in relation to the flat steel product, into the annealing furnace chamber. A controlled treatment of the flat steel product includes a first nozzle arrangement, from which a gas jet induces a first gas flow towards the entry of the annealing furnace chamber and sweeping over the surface of flat steel product to be treated. A second nozzle arrangement includes a gas jet which induces a second gas flow directed towards the exit of the annealing furnace chamber and sweeping over the surface of flat steel product.

Abstract: A method for the individualized adaptation of the shape of components includes providing a basic material for producing the components. Next at least one unifying production method is selected. The components are then produced with a geometrically identical base shape by the unifying production method. Then at least one individualizing production method is selected. Then the shape of the components is adapted to at least two different final shapes by the individualizing production method that is different from the unifying production method. The final shape of each component differs from its basic shape.

Abstract: A method for operating a shaft furnace, in particular a blast furnace, is disclosed wherein at least one gas is introduced into the furnace. To achieve an acceleration of the reaction processes in the furnace, shockwaves are introduced into the furnace.

Abstract: A method for producing a large outer paneling part for a movable body part of a motor vehicle such as a door, a front hood, or a tailgate may involve using a forming die to form a large metallic panel part into formed panel part having a three-dimensional shape. A reinforcement made of plastic may be applied to at least a portion of an inside of the formed panel part by back injection molding. In some cases, the metallic panel has a sheet metal thickness of less than 0.6 mm, and in some cases less than 0.5 mm. The formed panel part provided with the at least one plastic reinforcement may be connected to an inner structure produced from metal sheet and/or plastic by folding and/or adhesive bonding the plastic reinforcement.

Abstract: The invention relates to a device and a method for producing at least partially closed hollow profiles from a sheet by a U-O-forming with a tool set having a U-punch in a first tool half for producing an at least partially U-shaped sheet and an upper die in a second tool half for forming an at least partially U-shaped sheet into an at least partially closed hollow profile. Parts of the tool set run parallel to one another in the axial direction of the at least partially closed hollow profile to be produced and are arranged above one another in the closing direction of the tool halves, wherein a common matrix receiver is provided between the tool halves of the tool set, which receiver comprises at least two identical, partially U-shaped dies for the tool set and can rotate about its axial axis.

Abstract: A screen bar for a bar screen may comprise a steel composite sheet having at least three steel layers: a top layer, a core layer, and a bottom layer. The top, core, and bottom steel layers may be interconnected by roll cladding in a non-releasable manner. In some examples, the core steel layer may have a higher deformability than the top steel layer and the bottom steel layer. Likewise, the top steel layer and the bottom steel layer may have higher hardnesses than the core steel layer. Such screen bars have extended service life and can be manufactured more cost effectively, amongst other benefits. Methods for manufacturing such screen bars may involve a variety of steps including hot rolling and/or heat-treating.

Abstract: Quality collars with long collar lengths, homogeneous wall thickness distributions, and high loadability even in high-strength materials such as steel can be achieved on workpieces according to the disclosed methods and devices. One example method involves drawing the workpiece such that the drawn workpiece has a flange region and a drawn region adjoining the flange region, wherein the drawn region has a wall region and a drawn base adjoining the wall region, with the wall region forming a part of the collar; punching the drawn base located in the drawn region of the workpiece such that a drawn-base subregion adjoins the wall region; expanding the drawn-base subregion such that the expanded drawn-base subregion forms a part of the collar; and at least partially ironing and/or expanding the collar.

Abstract: Surface-oxidized, metallic components or semifinished products and corresponding planar components and methods for producing such components and/or semifinished products and corresponding components are disclosed. Such objects may be used, for example, in exterior skin parts of a motor vehicle, such as hoods, car roofs, car doors, fenders and/or side frames, baking trays, or baths. One object is to propose methods for producing surface-oxidized components or semifinished products that have an at least partially oxidized surface. The disclosed methods are suitable for mass production. Some example methods involve applying a surface layer comprising Al, Mg, Ti and/or Zr to a metallic substrate, and then performing plasma electrolytic oxidation of the surface layer. The metallic substrate may be cut to length and formed into a component or semifinished product before or after the plasma electrolytic oxidation. At least one part of the surface layer may be less than 200 ?m.

Abstract: The invention relates to a connecting joint for transmitting a rotation movement from a first to a second rotating shaft, having a joint outer part, a joint central part, and a joint inner part, wherein for transmitting the rotation movement, the joint outer part is connected to the first rotating shaft and the joint inner part is connected to the second rotating shaft. A plurality of balls are provided in ball tracks, which balls in the ball tracks may change their position in relation to the joint outer part, joint central part, and joint inner part. Rotational movement of the connecting joint, by way of the balls in the ball tracks, is transmittable from the joint outer part via the joint central part to the joint inner part and vice versa.

Abstract: Example methods and devices for producing a shaped component may involve positioning a workpiece having a hollow region and consisting at least partially of steel in a mold of a device. One or more docking punches may secure the workpiece within the mold and serve to introduce a pressurized fluid into the hollow region of the workpiece within the mold. The workpiece may be hot-formed in this process. The present disclosure concerns a variety of methods and devices that may be utilized to counteract a cooling of the workpiece in a region of the docking punch and reduce a temperature difference that may exist between the workpiece and the device.

Abstract: The invention concerns a transition body arranged between a lower section and an upper section of a tower for a wind energy plant. The lower tower section is constructed from several corner posts configured as hollow profiles and the upper tower section is configured in the form of a tubular tower which is essentially round in cross section, with a bottom and a connection flange disposed above the bottom for connecting the upper tower section. The bottom and the flange connect the upper tower section and are joined together by at least one metal casing sheet. The connection of the bottom to the at least one metal casing sheet is a welded construction. A number of connection areas is provided on the underside of its bottom, corresponding to the number of corner posts of the lower tower section.

Abstract: A method of manufacturing a composite sheet wherein the composite sheet includes at least two outer metal layers and at least one intermediate polymer layer wherein the polymer layer comprises a thermoplastic polymer. The method steps include providing at least a first and a second metal substrate and at least one intermediate polymer layer; coating at least one of the metal substrates with an adhesion promoter layer by plasma coating, wherein plasma coating includes: providing a process gas, generating a plasma, injecting a precursor for providing the adhesion promoter layer into the generated plasma or plasma afterglow, moving or placing the at least one metal strip into the generated plasma or plasma afterglow and depositing a plasma polymerized adhesion promoter layer on the surface of inner side of the metal substrate; and laminating the intermediate polymer layer and the two outer metal layers to build a composite material.

Abstract: A method for producing a wheel disk of a vehicle wheel may involve producing the wheel disk produced from a steel blank by hot forming. The blank may be at least partially hardened, preferably press-hardened, during or after the hot forming. The blank may be hot formed using at least one punch and at least one die, and at least one opening may be introduced into the blank using hot trimming means. At least one opening may be introduced during the hot trimming using at least one trimming bolt and an application bolt, wherein the application bolt may have at least one region having a cross-sectional shape that is variable in a longitudinal direction of the application bolt. Using the application bolt, the at least one opening may be calibrated via the variable cross sectional shape.

Abstract: Flat products may have a core layer comprising a metal material and a coating system that is applied to the core layer. The coating system may comprise a conversion layer with inorganic constituents that enhance adhesion of an outer polymer layer to the core layer. To provide an environmentally-friendly coating system that also offers optimum conditions for adhesion of the outer polymer layer, the coating system may comprise an adhesion promoter component that includes an organosilane and shields the adhesion-promoting inorganic constituents of the conversion layer relative to the surroundings. The present disclosure likewise provides processes for producing the flat products.

Abstract: Sandwich panels may include an intermediate thermoplastic layer disposed between two metallic cover layers. Some methods for welding a sandwich panel to a metallic component may involve heating a region of the sandwich panel with a preheating current so that the thermoplastic layer is softened and by compression of the cover layers is displaced from the welding region. A tack-welding current flowing between first and second welding electrodes may weld the cover layers together, and a welding current may be used to weld the metallic cover layers to the metallic component. In some cases, the first welding electrode may be in contact with one of the metallic cover layers, and the second welding electrode may be in contact with the metallic component. As a result, the sandwich panel may be joined to the metallic component in a short cycle time without blisters and faults arising in the sandwich component.

Abstract: A connector is disclosed for providing a positive and/or a non-positive connection between at least two connecting partners. The connector or connecting means has at least one first region which engages with the first connecting partner by way of a positive and/or a non-positive connection, and at least one second region is provided which engages with the at least second connecting partner by way of a positive and/or a non-positive connection. The connecting means provides a positive and/or non-positive connection between at least two connecting partners in a simple and inexpensive manner and which meets high safety requirements. The second region of the connecting means has a region which is formed from an at least partially flat material made of an Fe alloy with shape memory characteristics and which, when activated, ensures the positive and/or non-positive connection with the second connecting partner by way of a change in shape.

Abstract: The invention concerns a vehicle body, in particular for electric motor vehicles, having a left-hand and a right-hand front region and at least one first longitudinal member extending in one of the front regions in the longitudinal direction, wherein in the front region at least one second longitudinal member is provided, which is arranged outside the horizontal plane of the first longitudinal member and the direction of extension of which extends angularly to the direction of extension of the first longitudinal member at least in horizontal projection. The invention also concerns the use of such a vehicle body for producing a motor vehicle without a combustion engine, in particular an electric motor vehicle.

Abstract: A vehicle body may include a crossmember and a longitudinal member. The vehicle body helps ensure improved load absorption in collision events with small overlap between the crossmember and another vehicle or object. The deformation capabilities of the vehicle body in collision events involving a full surface area of the crossmember are not substantially impaired. Form-fitting members that comprise connection partners may be provided for the longitudinal member, wherein the form-fitting members ensure that a load path of collision energy is introduced into the longitudinal member selectively in the event of a collision with small overlap. A form-fitting member may form a form-fitting connection in a direction of the longitudinal member in the event of a collision.