Abstract: A method for producing an electromagnetic component for an electric machine is provided. The method includes providing a metal sheet as a starting material; punching out a number of lamellae from the metal sheet; heat-treating the lamellae; and joining the heat-treated lamellae to form the component or a portion of the component. The electromagnetic component to be produced can be a laminated core, for example a stator core or a rotor core, and can be provided for use with the electric machine such as an electric motor.

Abstract: A method for producing an electromagnetic component for an electric machine is provided. The method includes providing a metal sheet as a starting material; punching out a number of lamellae from the metal sheet; heat-treating the lamellae; and joining the heat-treated lamellae to form the component or a portion of the component. The electromagnetic component to be produced can be a laminated core, for example a stator core or a rotor core, and can be provided for use with the electric machine such as an electric motor.

Abstract: The invention relates to a method for producing a lamination stack, e.g. a stator package or a rotor package. The method comprises the following steps: A) providing a metal sheet (1) with an adhesive coating; B) transporting the metal sheet in an in-line system comprising a cutting means (4), a separating means (6) and an activation means (5, 5a 5b); C) cutting a molded part (2) with the cutting means (4); D) activating the adhesive coating; E) separating the molded part (2); F) placing the molded part (2); G) repeating steps C) to F), wherein the adhesive coating of some molded parts (8) is provided with a treatment fluid by means of a treatment device (9) in order to allow for target breaking points for separating a molded part stack (3, 3?). In some cases a subsequent compaction can be carried out by a compaction station (7). The invention also relates to a lamination stack and an electric machine.

Abstract: The invention relates to a method for producing an electromagnetic component. In particular, the electromagnetic component to be produced can be a laminated core, for example a stator core or a rotor core, and can be provided for use with an electric machine such as an electric motor. The method has the following steps: A) providing a metal sheet as a starting material; B) punching out a number of lamellae from the metal sheet; C) heat-treating the lamellae; D) joining the heat-treated lamellae to form the component or a portion of the component. The invention also relates to an electric machine.

Abstract: The invention relates to a sheet metal for producing an electromagnetic component, in particular a stator core or a rotor core, wherein the sheet metal is coated with an adhesive covering of a thermally activated adhesive. Said adhesive contains: 60 wt. parts of an epoxy resin in solid resin from, 0.5-15 wt. parts of a latent curing agent, 1-15 weight parts of a latent accelerator. The invention further relates to a method for producing an electromagnetic component.

Abstract: A flat steel product may have a tensile strength Rm?950 MPa, a yield point ?800 MPa, and an elongation at break A50?8%. The flat steel product may comprise steel consisting of (in percent weight) 0.05%-0.20% C, 0.2%-1.5% Si, 0.01%-1.5% Al, 1.0%-3.0% Mn, ?0.02% P, ?0.005% S, ?0.008% N, and in each case optionally 0.05%-1.0%, 0.05%-0.2% Mo, 0.005%-0.2% Ti, 0.001%-0.05% Nb, 0.0001%-0.005% B, the remainder being Fe and unavoidable impurities. A ratio ? may conform to 1.5???3 with ?=(% C+% Mn/5+% Cr/6)/(% Al+% Si), and % C, % Mn, % Cr, % Al, % Si being the respective C, Mn, Cr, Al, and Si contents of the steel. The flat steel product may have a microstructure consisting of (in percent area)?5% bainite, ?5% polygonal ferrite, ?90% martensite, and ?2% by volume of residual austenite, where at least half the martensite is annealed martensite.

Abstract: A flat steel product having a steel substrate and a protective coating having zinc as its main constituent that has been applied to the steel substrate by hot dip coating and produced by a subsequent galvannealing treatment, wherein the protective coating has pores on its free surface that extend into the protective coating. In the flat steel product, the proportions of right-skewed measurement traces determined in a topographic study are predominant over the proportion of non-right-skewed measurement traces both in the measurement direction and transverse to the measurement direction. Right-skewed measurement traces are determined by comparing the mean ascertained for each measurement trace with the median ascertained therefor. Those measurement traces where the mean is greater than the median are classified as being right-skewed.

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 nozzle device for a furnace, having a central supply pipe, on which at least one nozzle opening and a feed connection for connecting the nozzle device to a gas supply are provided, the gas supply feeding a gas into the nozzle device flowing through the nozzle device and issuing from the at least one nozzle opening, and also relates to a furnace for heat treating a steel flat product. The nozzle device and the furnace by simple means ensure that the respective heat treatment produces uniform results in an optimum way. This is achieved by the nozzle device having a first section, in which it has a smaller effective nozzle opening cross-section than in a second section which seen in the flow direction of the gas issuing from the respective feed connection and flowing through the nozzle device is arranged further away from the feed connection in question.

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.