Abstract: A blind rivet nut includes a rivet sleeve having a set head, a deformation region for forming the closing head, and a threaded section having a female thread. The female thread comprises maximally four complete thread turns, which produces a blind rivet nut with a low mass.

Abstract: Blind rivet setting device and method. The blind rivet setting device includes a housing; a pulling mechanism arranged in the housing; an electric motor structured and arranged move the pulling mechanism in a pulling direction out of a rivet receiving position; a control device, which is structured and arranged to control the motor, including a tear-off detection device that generates a mandrel tear-off signal when a pulling mandrel is torn off; and an operating device that is connected to the control device. When the mandrel tear-off signal is generated, the control device stops the driving of the pulling mechanism in the pulling direction.

Abstract: A blind rivet nut includes a rivet sleeve having a set head, a deformation region for forming the closing head, and a threaded section having a female thread. The female thread comprises maximally four complete thread turns, which produces a blind rivet nut with a low mass.

Abstract: A blind rivet arrangement (1) is described, comprising multiple rivet bodies (3, 3a, 3b) arranged in succession on a mandrel (2), the mandrel (2) having a mandrel head (8) with an outside diameter which is greater than an inside diameter of the rivet bodies (3, 3a, 3b). The aim is to provide an inexpensive way to produce a blind rivet arrangement that works effectively. To this end the mandrel (2) and the mandrel head (8) are designed as parts that are produced separately and joined together.

Abstract: Blind rivet setting device and method. The blind rivet setting device includes a housing; a pulling mechanism arranged in the housing; an electric motor structured and arranged move the pulling mechanism in a pulling direction out of a rivet receiving position; a control device, which is structured and arranged to control the motor, including a tear-off detection device that generates a mandrel tear-off signal when a pulling mandrel is torn off; and an operating device that is connected to the control device. When the mandrel tear-off signal is generated, the control device stops the driving of the pulling mechanism in the pulling direction.

Abstract: A blind rivet arrangement (1) is described, comprising multiple rivet bodies (3, 3a, 3b) arranged in succession on a mandrel (2), the mandrel (2) having a mandrel head (8) with an outside diameter which is greater than an inside diameter of the rivet bodies (3, 3a, 3b). The aim is to provide an inexpensive way to produce a blind rivet arrangement that works effectively. To this end the mandrel (2) and the mandrel head (8) are designed as parts that are produced separately and joined together.

Abstract: Connection element and connection element setting device and system. Connection element includes a set head and a stem, including a wall surrounding a longitudinal channel, connecting to the set head. The wall has at least one longitudinal slot located between the set head and an end section facing away from the set head, and the end section is smooth on an inside facing the longitudinal channel.

Abstract: The invention relates to a process for drying polymeric powders and polymeric agglomerates, in particular thermoplastic aromatic polycarbonate or other thermoplastic polymers such as, for example, acrylonitrile-butadiene-styrene copolymer, in the melt, whereby thermoplastic polymeric powders or polymeric agglomerates containing water or solvent or both are freed from adhering moisture and contained solvent, accompanied by melting, in an apparatus provided with rotating baffles for cleaning the walls of the apparatus and for distribution and transport of the material being dried, by heat input through the walls or through the rotating baffles or both as well as by heat input as a result of shearing action. The process of drying and that of melting for the subsequent granulation are thereby combined.

Abstract: This invention relates to a process for producing granulated polymer materials from polymer solutions, in which organic solvent of the polymer solution is evaporated in a heat exchanger, optionally with the admixture of steam, or in a holding tube with the admixture of steam, and the paste-like mixture of concentrated solution, solvent vapour and optionally of condensed steam is separated in a separator provided with rotating built-in components for cleaning off the walls. The pre-concentrated polymer solution is further concentrated in the separator by supplying heat by way of heating the separator walls or the rotating built-in components and by the shearing energy of the rotating built-in components.Residual degassing of the solvent is effected before granulation, e.g. in the discharge extruder of the separator which is provided with rotating built-in components, through one or more degassing zones, optionally by the additional admixture of entraining media, such as inert gas or steam, for example.

Abstract: Molten maleic anhydride is introduced in the form of fine droplets at 53.degree. C. to 250.degree. C. and preferably at 60.degree. C. to 120.degree. C. into a gas atmosphere which consists either of pure gaseous ammonia or of a gas mixture of ammonia and at least one other gas and of which the temperature is between 20.degree. C. and 500.degree. C. The process is carried out at a temperature of 120.degree. C. to 180.degree. C. for the production of polysuccinimide and at a temperature of 10.degree. C. to 120.degree. C. for the production of maleic amide acid.