Abstract: A component for a hot dip coating system, which comes into direct contact with an immersion bath of liquid metal during operation of the hot dip coating system, having a metallic base body, wherein at least one portion of a surface of the base body is provided with a three-layered coating, which includes a corrosion-resistant bonding layer arranged directly on the surface portion, a barrier layer arranged on the bonding layer, and a ceramic surface layer arranged on the barrier layer.

Abstract: The invention relates to a Laval nozzle for thermal spraying and kinetic spraying, especially for cold gas spraying, with a convergent section and a divergent section. To achieve a better degree of application effect, at least a portion of the divergent section, according to the invention, has a bell-shaped contour.

Abstract: The present invention relates to a process for the repair and restoration of dynamically stressed components comprising aluminium alloys for aircraft applications in which (a) the base material from which the component to be repaired was manufactured is determined, (b) the component to be repaired is, if necessary, subjected to pre-treatment, (c) a spray material which has chemical, physical and mechanical properties comparable to those of the base material is selected, (d) coating parameters for the subsequent coating process are selected so that bonding within the layer to be applied is optimized, (e) the spray material is applied to the component to be repaired by means of cold gas spraying in order to replace material which has been removed by wear and pre-treatment, and (f) the coated component is after-treated in such a way that the original component geometry is restored.

Abstract: A method for the subsequent treatment of welded connections is shown and described. The object of providing a method for the subsequent treatment of a weld by which the tensile stresses in the region of the weld are reduced is achieved by applying a top layer to the weld on a workpiece by cold-gas spraying.

Abstract: A method for coating a member of fiber-reinforced composite material is proposed, wherein (a) at first a composite consisting of organic and metallic components is applied by means of thermal spraying as an adhesive layer to a surface of the member to be coated; (b) a layer predominantly comprising metallic components is applied by means of thermal or kinetic spraying as an intermediate layer to said adhesive layer; and (c) a functional covering layer consisting of metal, a metal-carbide composite, oxide ceramics or mixtures of said materials is applied to said intermediate layer by means of thermal or kinetic spraying.

Abstract: A cold gas spraying method and device, whereby the sprayed particles are accelerated in a gas flow. A powder tube and an outer nozzle body together form a Laval nozzle that produces high gas flow velocities. The injection of the sprayed particles occurs in the divergent section of the Laval nozzle.

Abstract: A method and a device for cold gas spraying. According to the invention, energy is supplied to the particles with microwave technology. For that purpose, the nozzle in which the gas jet and particles are accelerated is surrounded by a microwave waveguide and/or a/the microwave waveguide encloses at least in part the spray-free jet between the nozzle outlet and the substrate. Advantageously, one section of the nozzle outlet is made of a ceramic.

Abstract: The invention relates to a process and a device for high-velocity flame spraying, the spray particles being accelerated in a flame jet of combustion gases. The injection of spray particles according to the invention takes place axially and centrally in the divergent section of the Laval nozzle, the powder tube (2) and the outer nozzle body (1) together forming a Laval nozzle for acceleration of the flame jet.

Abstract: The invention relates to a Laval nozzle for thermal spraying and kinetic spraying, especially for cold gas spraying, with a convergent section and a divergent section. To achieve a better degree of application effect, at least a portion of the divergent section, according to the invention, has a bell-shaped contour.

Abstract: A cold gas spraying method and device, whereby the sprayed particles are accelerated in a gas flow. A powder tube and an outer nozzle body together form a Laval nozzle that produces high gas flow velocities. The injection of the sprayed particles occurs in the divergent section of the Laval nozzle.

Abstract: The invention relates to a process and a device for high-velocity flame spraying, the spray particles being accelerated in a flame jet of combustion gases. The injection of spray particles according to the invention takes place axially and centrally in the divergent section of the Laval nozzle, the powder tube (2) and the outer nozzle body (1) together forming a Laval nozzle for acceleration of the flame jet.