Abstract: A method for manufacturing a semifinished product or component is disclosed in which a metal support embodied as a split strip is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or component by means of roll forming. In order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior to reaching its gel point, the prepreg is formed together with the metal support.

Abstract: A method for manufacturing a semifinished product or part is disclosed in which a metal support embodied as a metal sheet or blank is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or part by means of deep drawing or stretch deep drawing. In order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior to reaching its gel point, the prepreg is formed together with the metal support.

Abstract: To determine the temperature of a link capacitor (C) of a link converter (1) more accurately with less expenditure, a device and a method are described, in which the link capacitor (C) is modeled as a series interconnection of an equivalent capacitance (CS) and an equivalent series resistance (ESR), wherein a modeled capacitor current (iCm) flows across the equivalent series resistance (ESR). A modeled capacitor power loss (PC), from which the capacitor temperature (TC) is determined by means of a specified temperature model, is calculated from the modeled capacitor current (iCm) and the value of the equivalent series resistance (ESR) by means of a first relationship of the form PC=f(iCm, ESR). Direct measurement of the capacitor temperature (TC), of the capacitor current (iC), or of the capacitor power loss (PC) is not required. For example, a measurement of the capacitor voltage (uC) and a further calculation of the modeled capacitor current iCm and finally of the capacitor power loss (PC) are sufficient.

Abstract: A method for producing a preliminary material for a cutting tool and such a preliminary member, for example a preliminary material for a saw blade, a saw band, a cutting line, a punching knife, or a blade, wherein at least one first particulate cutting-edge material is applied to a planar carrier, the first particulate cutting-edge material is welded to the planar carrier, and the planar carrier is separated substantially along the weld joint thus produced.

Abstract: A method for mar manufacturing a semifinished product or part is disclosed in which a metal support embodied as a metal sheet or blank is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or part by means of deep drawing or stretch deep drawing. In order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior reaching its gel point, the prepreg is formed together with the metal support.

Abstract: A method for manufacturing a semifinished product or component is disclosed in which a metal support embodied as a split strip is covered with at least one prepreg containing a thermally cross-linkable thermosetting matrix with endless fibers, the thermosetting matrix of the prepreg is pre-cross-linked by means of heating, and the metal support covered with the pre-cross-linked prepreg is formed into a semifinished product or component by means of roll forming, in order to enable plastic deformation in fiber-reinforced regions of the metal support, it is proposed that during the pre-cross-linking of the thermosetting matrix of the prepreg, its matrix is transferred into a viscosity state that is higher than its minimum viscosity and prior to reaching its gel point, the prepreg is formed together with the metal support.

Abstract: A method for producing a primary material for a machining tool and such a primary material, for example a primary material for a saw blade, a saw band, a cutting line, a punching knife or a blade, wherein a first flat carrier is arranged with one edge thereof along an edge of a second flat carrier, wherein the first and second carriers are welded together along the edges by supplying at least a first particulate cutting edge material, and the first and second carriers are separated again substantially along the welded joint formed as noted above.

Abstract: To determine the temperature of a link capacitor (C) of a link converter (1) more accurately with less expenditure, a device and a method are described, in which the link capacitor (C) is modeled as a series interconnection of an equivalent capacitance (CS) and an equivalent series resistance (ESR), wherein a modeled capacitor current (iCm) flows across the equivalent series resistance (ESR). A modeled capacitor power loss (PC), from which the capacitor temperature (TC) is determined by means of a specified temperature model, is calculated from the modeled capacitor current (iCm,) and the value of the equivalent series resistance (ESR) by means of a first relationship of the form PC=f (iCm, ESR). Direct measurement of the capacitor temperature (TC), of the capacitor current (iC), or of the capacitor power loss (PC) is not required. For example, a measurement of the capacitor voltage (uC) and a further calculation of the modeled capacitor current iCm and finally of the capacitor power loss (PC) are sufficient.

Abstract: A method for producing a primary material for a machining tool and such a primary material, for example a primary material for a saw blade, a saw band, a cutting line, a punching knife or a blade, wherein a first flat carrier is arranged with one edge thereof along an edge of a second flat carrier, wherein the first and second carriers are welded together along the edges by supplying at least a first particulate cutting edge material, and the first and second carriers are separated again substantially along the welded joint formed as noted above.

Abstract: A method for producing a preliminary material for a cutting tool and such a preliminary member, for example a preliminary material for a saw blade, a saw band, a cutting line, a punching knife, or a blade, wherein at least one first particulate cutting-edge material is applied to a planar carrier, the first particulate cutting-edge material is welded to the planar carrier, and the planar carrier is separated substantially along the weld joint thus produced.

Abstract: The invention relates to a sintered brake lining (3) with a cylindrical friction element (4) made from a first sintered material, which has an external cylinder surface and a cylinder height (6), and with a reinforcing element (5) enclosing the friction element (4) which is disposed on the external cylinder surface and extends at least approximately across the entire cylinder height (6), and the reinforcing element (5) is made from another sintered material with a metal matrix. At least one abrasive substance is contained in the metal matrix of the other sintered material of the reinforcing element (5). The other sintered material is of a higher strength than the first sintered material of the friction element (4).

Abstract: The invention relates to a sintered brake lining (3) with a cylindrical friction element (4) made from a first sintered material, which has an external cylinder surface and a cylinder height (6), and with a reinforcing element (5) enclosing the friction element (4) which is disposed on the external cylinder surface and extends at least approximately across the entire cylinder height (6), and the reinforcing element (5) is made from another sintered material with a metal matrix. At least one abrasive substance is contained in the metal matrix of the other sintered material of the reinforcing element (5). The other sintered material is of a higher strength than the first sintered material of the friction element (4).

Abstract: A communications system for mobile telecommunications and a set of procedures for operating the system are described. The system allocates a sub-area within a total area whereby the parameters of the allocated sub-area are stored in a subscriber identity module (SIM), enabling authorisation checks to be carried out from a mobile user unit.

Abstract: A brake shoe (2) is described for a disk brake with a support (7) for a sintered brake lining, which support can be pressurized by the piston (5) of at least one brake cylinder (4). In order to provide advantageous constructional conditions it is proposed that the support (7) comprises on the side facing the piston (5) of the brake cylinder (4) a heat-insulating, porous pressure transfer body (9) made of fibers bonded with artificial resin for the piston.