Abstract: The invention relates to a method for producing a helical metal body (?), in which initially a preformed, helical metal body is produced in a mould by a casting method and is subsequently compressed along its longitudinal axis by deformation.

Abstract: The invention relates to a method for producing a coil (6), in which, by means of casting, a semi-finished product (5) in the form of an elongate conductor is formed in a cavity (2) of a casting tool and the coil (6) is formed following a demolding of the semi-finished product (5) by shaping this semi-finished product (5), wherein the form of the semi-finished product (5) may be derived from a shape of the finished coil (6) by stretching along a longitudinal axis of the coil (6) and/or by bending this longitudinal axis, and wherein the semi-finished product (5), during the shaping, is bent and compressed so that windings of the coil (5) already present in the semi-finished product (5) are brought closer to one another at least in some regions during the shaping and are brought into an arrangement along the longitudinal axis of the finished coil (6), wherein the conductor, whilst being shaped, is twisted or bent by no more than a right angle over the course of each individual turn.

Abstract: The invention relates to a method for producing a helix (2), having a step of providing a permanent mold (1) with mold halves (1.1, 1.2) which can be joined together on a mold parting line (1.5). The method additionally has a step of joining together the mold halves (1.1, 1.2) of the permanent mold (1) such that the permanent mold (1) has a cavity (1.3), which defines the shape of the helix (2) or the shape of a bent-up helix (2?), when the permanent mold is joined together, wherein the specified helix (2) or the bent-up helix (2?) has a flattened profiled winding cross-section which has two opposite flat sides (2.1, 2.1?), an outer side (2.2) and an inner side (2.3) opposite the outer side (2.2), and the mold parting line (1.5) runs at least partly along the outer side (2.2) and/or the inner side (2.1) and/or edges of the profiled winding cross-section. The method additionally has a step of removing burrs (3) extending on the outer side (2.2) and/or the inner side (2.

Abstract: The present invention relates to a casting core for casting molds, wherein the casting core contains or consists of ceramic particles bound with a silica sol. The casting core has a pore structure, in which the average pore size of the pores increases at least in sections from the outside to the inside in the casting core. The present invention also relates to a method for producing the casting core according to the invention and to the use of the casting core according to the invention.

Abstract: The present invention relates to a casting mold for casting components. The casting mold comprises at least one casting mold frame made of metal and/or of an alloy, and also one or more ceramic casting mold inserts introduced into the at least one casting mold frame. The casting mold insert or the casting mold inserts has/have the negative contour or part of the negative contour of a component to be produced or of the combination of a component to be produced with one or more casting cores. The present invention also relates to a method for producing the casting mold according to the invention and to the use of the casting mold according to the invention.

Abstract: The present invention relates to a casting core for casting moulds, the casting core comprising an inner core and an outer core arranged around the inner core. The outer core contains or consists of ceramic particles bound with a binder. The inner core contains ceramic particles bound with a binder and additionally one or more placeholder elements. The placeholder element(s) is/are at least partially thermally decomposable. The present invention also relates to a method for producing the casting core according to the invention and to the use of the casting core according to the invention.

Abstract: A casting device having a casting mold and a core for producing a helical casting is described. The may have an expendable core that can be dissolved after the casting process. Advantageous effects of the device and process can be achieved by virtue of the fact that the female mold for accommodating the helical casting during the casting process is formed completely within the outer contour of the core, the female mold being delimited by the core and, at the peripheral boundary surfaces of the female mold, by the casting mold.

Abstract: A method for producing a hollow, helical, electrically conducting body. The method comprising: producing a helical core made of a core material that can be at least one of liquefied and evaporated under the action of heat; coating the helical core with a first powder layer of an at least partially electrically conducting powder using a powder coating method; heating the helical core and the first powder layer to a first temperature, at which the helical core is at least one of liquefied and evaporated and at which the first powder layer is at least partially solidified in porous form, the core material exiting space surrounded by the first powder layer; and after the core material has exited the space surrounded by the first powder layer, sintering the first powder layer by heating the first powder layer to a second temperature, which is higher than the first temperature.

Abstract: A casting device having a casting mold and a core for producing a helical casting is described. The may have an expendable core that can be dissolved after the casting process. Advantageous effects of the device and process can be achieved by virtue of the fact that the female mold for accommodating the helical casting during the casting process is formed completely within the outer contour of the core, the female mold being delimited by the core and, at the peripheral boundary surfaces of the female mold, by the casting mold.

Abstract: A method for producing a helical casting pattern. The method including: providing a pattern body having a longitudinal axis, a cavity extending in the direction of the longitudinal axis, and a pattern body wall that surrounds the cavity; providing a processing tool for creating a recess; arranging the pattern body and the processing tool such that the processing tool extends at least partially through the pattern body wall in the radial direction with respect to the longitudinal axis; and rotatably driving at least one of the processing tool and the pattern body about one of the longitudinal axis of the pattern body and an axis parallel thereto, relative to one another, with a relative movement between the pattern body and the processing tool in a direction parallel to the longitudinal axis being produced one of continuously or at least intermittently during or in alternation with the relative rotational movement.

Abstract: One method for producing a cast body is described. The method may have one step for producing one or more insert parts. The one or more insert parts are provided in a casting mold of an injection molding tool such that a cavity corresponding to the shape of the cast body is formed by the one or more insert parts or by the one or more insert parts together with the casting mold. The cavity is filled with a molding compound containing a powder of a sinterable material. A green part may be produced by solidifying the molding compound. An intermediate product may be removed from the injection molding tool where the intermediate part may have the green part and the one or more insert parts. The one or more insert parts may be removed from the intermediate product. Further, the green part may be debinded and sintered.

Abstract: The casting of metals or salt and products made by casting metals or salts are described. For example, a method for casting metals or salts includes evacuating a mold that is pressurized with an inert gas and coupled to a pressurized source of molten metal or salt, wherein the pressurization of the source is sufficiently high to drive the molten metal or salt into the mold in response to the evacuation.

Abstract: A method for producing an electrically conductive component having a cavity is described. An efficient production method for such a component, which allows a high variability of the wall thickness of the component, is implemented by applying a load-bearing layer consisting of an electrically conductive material to a soluble substrate and then dissolving and at least partially removing the substrate.

Abstract: The invention relates to the use of a carbonaceous coating for protection of a passive electrical component from attack by ammonia, wherein the carbonaceous coating is a sol-gel coating or a plasma-polymeric coating. This coating comprises a particular carbon content.

Abstract: A metal casting method and a plastic injection molding method in which an insert is molded in molten material such that no molten material enters the interior of the insert. The usage of a wire thread insert as insert has the advantage that for example in an aluminum cast part thread holes can be produced already as part of the casting process. For this purpose, the casting mold, the insert, as well as the casting method are described.

Abstract: The invention relates to a passive electrical component, especially a coil, having an interlayer, wherein the interlayer has a lower coefficient of thermal expansion than the surface of the passive electrical component covered with the interlayer, and disposed atop that a plasma-polymeric carbon-containing coating having a carbon content measured at a depth of 80 nm away from the side of the plasma-polymeric coating remote from the interlayer, wherein the plasma-polymeric coating comprises a carbon content of 50 to 100 atom %, preferably 50 to 90 atom %, or is configured as an organometallic coating a carbon content of 2 to 50 atom %, in each case measured by means of XPS.

Abstract: A metal casting method and a plastic injection molding method in which an insert is molded in molten material such that no molten material enters the interior of the insert. At the usage of a wire thread insert as insert this has the advantage that for example in an aluminum cast part thread holes can be produced already as part of the casting process. For this purpose, the present disclosure describes an the casting mold, the insert as well as the casting method.