Abstract: Internal combustion engine with bearing shells, which are formed essentially by thermal sprayed bearing layers, wherein the thermal sprayed bearing layers are formed by at least two slide bearing materials with different hardness, which are spatially separated from each other and are provided on the outer surface of the bearing shell, as well as process for production of bearing shells for internal combustion engines including the steps: mechanical conditioning of the bearing surface coating of the bearing surface with the materials of the bearing shell by thermal spray processes finishing flattening processing of the applied layer wherein as bearing shell at least two slide bearing materials with different hardness were deposited separated spatially from each other, wherein the materials are in contact with each other via interlayers or joint layers.

Abstract: An arc wire burner for arc wire spraying with at least two burner tubes for supplying electrodes in the form of wire, which are guided and advanced through the burner tubes in the direction of the surface of the object to be coated, wherein the wire is guided along a deflection device including a rotatable mounted guide and/or slide element (8), by means of which the wire is deformed in the elastic realm.

Abstract: Thermal coating processes are widely used to create localized different surface properties on work pieces, in particular enhanced hardness properties. It is important that only those regions of the work piece surface are activated and coated which have been planned for, and for this a mask is applied to the surface. The surface may be treated after application of the mask by a process such as grit blasting. The mask may be dimensionally stable for only a limited time. Removal of the coating material is possible but time and labor intensive. An improved mask is provided utilizing joined particles for the fabrication of the mask. After the coating, the used mask can be separated into its individual particles, which are then separated from the coating residues and are reused for the fabrication of new masks.

Abstract: Slide layers, in bearing shells or exhaust gas turbo chargers of internal combustion engines, formed by a metal matrix with embedded polymer or embedded polymer and ceramic, as well as methods for production for this type of slide layers by means of a thermal spray process, in particular arc wire spray processes (LDS) wherein the substantial proportion of the metallic spray material is introduced prior to the spray nozzle, and the polymer spray material in powder or wire form is introduced into the spray stream subsequent to the spray nozzle using a supply device.

Abstract: Process for arc wire spraying for depositing material layers, in particular slide bearing layers, wherein at least one oxygen containing atomizing gas and one fuel gas are supplied to the spray device, which are combusted in a burn chamber in the immediate vicinity or behind the arc under the influence of a part of the oxygen containing atomizing gas and following the exit from the nozzle a flame jet or spout produces wherein that by the oxidation of the metallic components of the spray wire a metal oxide layer is formed at least on the outer surface of the spray droplets, as well as material layers, in particular bearing layers, of Cu-containing alloys with metal oxide microstructure segregated areas, wherein the material exhibits a lamella like microstructure of thicker lamellas of Cu-alloys and thinner lamellas of metal oxide, wherein the lamellas are oriented primarily parallel to the substrate of the base material.

Abstract: Internal combustion engine with bearing shells, which are formed essentially by thermal sprayed bearing layers, wherein the thermal sprayed bearing layers are formed by at least two slide bearing materials with different hardness, which are spatially separated from each other and are provided on the outer surface of the bearing shell, as well as process for production of bearing shells for internal combustion engines including the steps: mechanical conditioning of the bearing surface coating of the bearing surface with the materials of the bearing shell by thermal spray processes finishing flattening processing of the applied layer wherein as bearing shell at least two slide bearing materials with different hardness were deposited separated spatially from each other, wherein the materials are in contact with each other via interlayers or joint layers.