Abstract: The invention relates to a conveyor for elongate components (12) designed with a head and a shank. The conveyor comprises a feed arrangement (7). The feed arrangement (7) comprises a transfer arrangement (8) with a transfer region (15) in which a component (12) can be positioned. In the transfer region (15), a feed duct (11) having a head guiding duct (13) and a shank guiding duct (14) passes into a conveying duct (16). The transfer arrangement (8) comprises at least one catch unit (17). The catch unit (17) comprises at least one catch element (18). The catch element (18) is arranged opposite the head guiding duct (13) and penetrates at least partially therein. It can be deflected from the head guiding duct (13) against a spring force.

Abstract: The invention concerns a feed device (1) comprising a positioning piston (6) for holding a fastening element (2) during positioning, a catching clamp (5) for pre-positioning the fastening element (2) for the positioning piston (6) and a housing (3) for holding the positioning piston (6) and the catching clamp (5), the housing (3) having a feed channel (4) for feeding the fastening element (2) to the catching clamp (5) and the positioning piston (6) being adjustable for positioning the fastening element (2) relative to the housing (3), and the catching clamp (5) being able to be closed or opened substantially independently of the axial forward movements of the fastening element (2) during forward and backward movement of the positioning piston (6).

Abstract: A riveting system is operable to join two or more workpieces with a rivet. In another aspect of the present invention, a self-piercing rivet is employed. Still another aspect of the present invention employs an electronic control unit and one or more sensors to determine a riveting characteristic and/or an actuator characteristic.

Abstract: A fastening element (1), in particular for blind riveting, has a setting head (4), a deformation segment (2) and a shank end (3). The deformation segment (2) is arranged between the setting head (4) and the shank end (3). The fastening element (1) is hollow, optionally having a mandrel (7) inside the fastening element (1). The mandrel includes a head (23) and a foot (24) at least tension-resistantly connected to the shank end (3). The shank end (3) includes a punching edge (6) extending substantially along the outermost periphery of the shank end (3). Also identified are a process for setting the fastening element (1), a riveted connection to the fastening element (1), a device for setting the fastening element (1), an employment of the riveted connection obtained, and a die suitable for setting the fastening element (1).

Abstract: Process for the fractionated regeneration of a weakly acid ion exchanger charged with divalent metal ions selected from nickel, zinc and manganese ions, obtaining a phosphoric-acid valuable product solution which contains these metal ions, wherein at least two portions of aqueous phosphoric acid are added to the ion exchanger one after the other, wherein each successive portion of aqueous phosphoric acid shows a lower phosphoric acid concentration than the previous one, wherein after adding the first portion of aqueous phosphoric acid to the ion exchanger, a concentrate fraction in the form of a phosphoric-acid valuable product solution containing metal ions is flushed out which contains at least 0.5 wt.

Abstract: A through-hole self-piercing rivet 30 is assembled with two metal plates 50 and 52 to retain the plates together as a workpiece 54. When the rivet 30 is to be removed, a pin, such as a contact pin 56, is attached to the rivet by fusion, or a pin, such as a threaded mandrel 78, is attached threadedly to the rivet. The contact pin 56 or the threaded mandrel 78 is withdrawn from the workpiece 54 to thereby withdraw the attached rivet 30 from the workpiece. Devices 62 and 84 provide facility for effecting the attachment of the contact pin 56 and the threaded mandrel 78, respectively, with the rivet 30, and for the extraction of the rivet from the workpiece 54.

Abstract: A riveting system is operable to join two or more workpieces with a rivet. In another aspect of the present invention, a self-piercing rivet is employed. Still another aspect of the present invention employs an electronic control unit and one or more sensors to determine a riveting characteristic and/or an actuator characteristic.

Abstract: A method as well as an apparatus manufactures a punch riveted joint, wherein at least two layers are pressed by a holding-down device against the die and a rivet, in particular a semitubular rivet, is provided for joining the layers. The holding-down device is connected by a coupling unit to the punch in such a way that during a punch riveting operation a coupling of the holding-down device to the punch may be varied between a substantially rigid coupling state and an uncoupled state.

Abstract: A punch rivet (1) has a cutting edge (6) which is arranged on the end face of its rivet shank (2) and is formed in the cutting region by an outer face (5) extending parallel to the axis and a conical inner face (4) of the rivet shank (2). The outer face (5) extends continuously parallel to the axis over the entire rivet shank (2) and the punch rivet (1) is provided with the same cutting edges (6, 7) on either side in an axially symmetrical design in the form of a tube.

Abstract: The present invention relates to a process for preparing novel, monodisperse crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds, in particular heavy metal compounds or noble metal compounds.

Abstract: A punch rivet (1) has a cutting edge (6) which is arranged on the end face of its rivet shank (2) and is formed in the cutting region by an outer face (5) extending parallel to the axis and a conical inner face (4) of the rivet shank (2). The outer face (5) extends continuously parallel to the axis over the entire rivet shank (2) and the punch rivet (1) is provided with the same cutting edges (6, 7) on either side in an axially symmetrical design in the form of a tube.

Abstract: The present invention relates to a process for preparing novel, monodisperse crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds, in particular heavy metal compounds or noble metal compounds.

Abstract: A riveting system is operable to join two or more workpieces with a rivet. In another aspect of the present invention, a self-piercing rivet is employed. Still another aspect of the present invention employs an electronic control unit and one or more sensors to determine a riveting characteristic and/or an actuator characteristic.

Abstract: The invention relates to a coated metal fastener that is prepared by electrogalvanically coating a metal fastener with a layer of tin and zinc mixed crystals, wherein the tin is from about 50 to about 90% by weight of the mixed crystals layer. The fastener plated with the tin and zinc alloy layer has a number of unexpected properties, including stability at higher temperatures than expected, which is important for retaining the strength of a vehicle joint secured with the fastener during subsequent finishing operations; retention of electrical conductivity, which makes the fastener suitable for use as a grounding member; and resistance to galvanic corrosion when the fastener joins metals of differing electrode potential.

Abstract: A riveting system is operable to join two or more workplaces with a rivet. In another aspect of the present invention, a self-piercing rivet is employed. Still another aspect of the present invention employs an electronic control unit and one or more sensors to determine a riveting characteristic and/or an actuator characteristic.

Abstract: A riveting system is operable to join two or more workpieces with a rivet. In another aspect of the present invention, a self-piercing rivet is employed. Still another aspect of the present invention employs an electronic control unit and one or more sensors to determine a riveting characteristic and/or an actuator characteristic.

Abstract: The invention relates to a process for forming a punch rivet connection and to a joining device, a plunger (4) and optionally a clamp (5) being driven via a transmission unit (2). The transmission unit (2) converts a rotational movement of an electric motor drive unit (1) into a translation movement of the plunger (4) or of the clamp (5).

Abstract: To form a welded joint between a fastening means (1) and a structure (2), a fastening means (1) with a holder (3) and a connecting element (4) is proposed. The holder (3) essentially consists of an electrically insulating material. The connecting element (4) consists of a substantially electrically conductive material. The holder (3) substantially surrounds the connecting element (4). The connecting element (4) has a contact face (5) located inside the holder (3). The holder (3) has a through-orifice (6) at least partially overlapping the contact face (5). A contact piece (7) of an electrically operated welding device is introduced through the through-orifice (6).

Abstract: Stud welding device with an axially displaceable adjusting element (3, 17) for displacement from a front position into a rear position and back, in which a magnetic field and a coil (15) interact in such a way that, when the coil (15) is connected to a controllable current source (41) an axial force is produced in order to displace the adjusting element (3, 17), the movement of which is transmitted to a stud holder (2), characterized in that the coil (15) is rigidly arranged on a hollow body (14) which is connected to the adjusting element (3, 17) and is arranged axially movably in an air gap (13) between a magnetizable core (8) and a magnetizable sheath (10), the magnetic field being conveyed via at least one yoke (9) connecting the core (8) and the sheath (10) while passing radially through the coil (15), the coil exerting on the adjusting element (3, 17) an axial force acting only in one direction as a function of the direction of current during current control.

Abstract: A belt providing continuous lining up of plastics components held in a plastics web whereby components successively presented to an assembly position are then separated and utilized, having at least one guide element provided on each component whereby the component is located and positioned at the assembly position prior to separation of the component.