Abstract: Cylinder of piston-type internal combustion engine includes at least one bore with inner shell formed from a base material. The base material, in a region of the bore, includes a layer system, and a first boundary surface formed between base material and layer system. Layer system includes at least one thermally sprayed layer forming at least partially a shell surface of the bore and acts there as a functional layer. First boundary surface does not include any profiling applied for mechanical activation of the surface apart from surface roughness resulting from manufacture of the bore. The material of the layer system includes molybdenum and at least one further element in the region of the boundary surface to the base material and is bonded to the base material by a chemical bond. This boundary surface material differs from the material of the functional layer in composition and/or structure.

Abstract: The present invention relates to a method for coating components by thermal spraying, wherein not the entire surface of the component is to be coated and wherein those parts of the surface that are not to be coated are covered by masking before coating, characterized in that the covering is made by means of paste processes at least in the areas of critical mask boundaries, i.e. by means of a paste dispensed from at least one nozzle.

Abstract: A processing head (1) for surface processing by means of a laser beam is disclosed. The processing head (1) comprises a through passage (2) for a laser having a longitudinal axis (A), at least one powder supply passage (3) and a cooling passage (4) for cooling the processing head (1). The processing head (1) is at least configured of two parts and comprises a body (5) and a sleeve (6). The sleeve (6) is suitable for the arrangement at the body (5). The through passage (2) of the laser and the powder feed channel (3) are configured in the body (5). The body (5) at least partly forms a first sidewall of the cooling passage (4). The sleeve (6) at least partly forms a second sidewall of the cooling passage (4).

Abstract: The invention relates to a zinc-free spray powder for thermally coating a substrate, in particular for thermally coating a bearing part of a bearing apparatus, which spray powder has the following composition except for unavoidable contaminants: tin=5% to 30% weight percent; aluminum=0.1% to 5% weight percent; iron=at most 1% weight percent, and copper=difference to 100% weight percent. The invention furthermore relates to a layer system applied via thermal spraying, a work piece, particularly a connecting rod, as well as a spray method for manufacturing a spray layer.

Abstract: The invention relates to a method for starting a recipe in a plasma torch, the method comprising the following steps: adjusting of a current to a current nominal value adjusting of a gas flow to a gas nominal value characterized in that when adjusting the gas flow to the gas flow nominal value, the current is adjusted such, that it always is below the current nominal value, so that it does not result in a power hill.

Abstract: The invention relates to a spray powder with a superferritic iron-based compound for the thermal coating of a substrate, wherein the spray powder includes, apart from impurities, a chemical list from the list of chemical elements consisting of C, Mn, Cr, Mo, Ni, Nb, P, S, Si, Fe, Al, O, and Zr. In accordance with the invention, the spray powder has the following chemical composition: C at a maximum up to 0.7% by weight, Mn at a maximum up to 0.7% by weight; Ni at a maximum up to 0.5% by weight, Nb at a maximum up to 1.2% by weight, Pat a maximum up to 0.1% by weight, S at a maximum up to 0.1% by weight, Si at a maximum up to 0.2% by weight, Cr in the range from 20% to 40% by weight, Mo in the range 2.0% to 6% by weight, and a ceramic component Al2O3/ZrO2 up to a maximum of 50% by weight, with the remainder being Fe, and otherwise a total of a maximum of 0.4% by weight of further chemical components being contained as impurities.

Abstract: A processing head (1) for surface processing by means of a laser beam is disclosed. The processing head (1) comprises a through passage (2) for a laser having a longitudinal axis (A), at least one powder supply passage (3) and a cooling passage (4) for cooling the processing head (1). The processing head (1) is at least configured of two parts and comprises a body (5) and a sleeve (6). The sleeve (6) is suitable for the arrangement at the body (5). The through passage (2) of the laser and the powder feed channel (3) are configured in the body (5). The body (5) at least partly forms a first sidewall of the cooling passage (4). The sleeve (6) at least partly forms a second sidewall of the cooling passage (4).

Abstract: The invention relates to a powder flow nozzle, to a receiver unit and to a processing head for an apparatus for a processing of material with a laser. In order to enable a simple exchange of the powder flow nozzle it is suggested in accordance with the invention that an outer contour of a mounting spigot (11) of the powder flow nozzle (10) monotonously tapers in a plug-in region (16) in the plug-in direction (14).

Abstract: The invention relates to a thermal spraying material (5) for the coating of a surface of a workpiece by means of a thermal spraying method, wherein the spraying material (5) contains zinc. The invention further relates to a thermal spraying method and to a thermally sprayed coating sprayed with the material (5).

Abstract: The invention provides for a cylinder bore coating system that includes at least one cylinder bore configured to receive an axially movable piston. The at least one cylinder bore has a recessed area having an axial length and a radial depth. A first coating layer is arranged within at least the recessed area. A second coating layer covers the first coating layer and a portion of the at least one cylinder bore axially spaced from the recessed area.

Abstract: A process for epitaxial deposition of compound semiconductor layers includes several steps. In a first step, a substrate is removably attached to a substrate holder that may be heated. In a second step, the substrate is heated to a temperature suitable for epitaxial deposition. In a third step, substances are vaporized into vapor particles, such substances including at least one of a list of substances, comprising elemental metals, metal alloys and dopants. In a fourth step, the vapor particles are discharged to the deposition chamber. In a fifth step, a pressure is maintained in the range of 10^?3 to 1 mbar in the deposition chamber by supplying a mixture of gases comprising at least one gas, wherein vapor particles and gas particles propagate diffusively. In a sixth optional step, a magnetic field may be applied to the deposition chamber. In a seventh step, the vapor particles and gas particles are activated by a plasma in direct contact with the sample holder.

Abstract: To allow a simple and thus inexpensive coating of a part surface of a workpiece, it is proposed in accordance with the invention that the screening element (15, 19) is magnetic at least during an application of a magnetizable coating material. The screening element (15, 19) is demagnetized for removing the accumulated coating material. The coating material accumulated on the screening element (15, 19) can thus be removed very easily and fast and thus inexpensively.

Abstract: A component stack is coated such that, during a first coating pass, a first angle (?) is formed between the first stack opening surface and the coating beam and, during a second coating pass, a second angle (?) is formed between the first stack opening surface and the coating beam, wherein the first angle (?) and the second angle (?) are formed in opposite directions relative to the first stack opening surface.

Abstract: Method for the manufacture of a coating having a columnar structure, preferably a dense structure, in which method a coating material in the form of primary corpuscles is injected with a carrier gas into a thermal process beam. The coating material is transferred into a vapor phase in the process beam and is deposited as a condensate in the form of a columnar coating on a substrate. The primary corpuscles are formed by an agglomerate of particles which are held together by cohesive forces of a connecting medium or by adhesive forces.

Abstract: The invention relates to a method and to a control unit for operating the plasma generation apparatus. The invention is based on a method and a control unit in which a voltage is applied as an ignition voltage between an anode and a cathode for ignition of a plasma. In order to enable a gentle operation of the plasma generation apparatus it is provided in accordance with the invention that a check is continuously carried out during the ignition process whether the ignition of the plasma has been effected. Additionally, the ignition voltage (UZ) is increased starting from an initial ignition voltage (UZA) and after recognizing an effected ignition (at the point in time tZ) of the plasma, the voltage is reduced between the anode and the cathode to a maintenance voltage (UA).

Abstract: A plasma spray method for the manufacture of an ion conducting membrane, in particular of a hydrogen ion conducting membrane or of an oxygen ion conducting membrane. In the method, the membrane is deposited as a layer on a substrate in a process chamber, wherein a starting material is sprayed onto a surface of the substrate by means of a process gas in the form of a process beam. The starting material is injected into a plasma at a low process pressure which is at most 10000 Pa and is partially or completely melted there. In accordance with the invention, the substrate has pores which are connected amongst one another so that the substrate is gas permeable and a portion of an overall pore area of an overall area of the coating surface amounts to at least 30% or, in a particular embodiment, to at least 40%.

Abstract: The invention relates to a bearing part as well as to a spray method for manufacturing a layer system on a bearing part, such as, in particular, a connecting rod eye of a connecting rod for a reciprocating piston combustion engine, with a layer system containing at least tin being provided on a surface of the bearing part. In accordance with the invention, an outer, thermally sprayed, top layer of the layer system is composed only of tin with the exception of contaminants.

Abstract: To apply a thermal barrier coating (10), a plasma jet (5) is generated by a plasma torch in a work chamber (2) and is directed to the surface of a substrate (3) introduced into the work chamber, and a ceramic coating material is applied to the substrate surface by means of PS-PVD, wherein the coating material is injected into the plasma jet as a powder and is partly or completely vaporized there. On applying the thermal barrier coating, in a first workstep the feed rate of the injected powder is set so that a large part of the injected powder vaporizes, wherein the coating material condenses from the vapor phase on the substrate surface and forms mixed phases with the material of the substrate surface.

Abstract: The invention relates to a device for creating and conveying a gas-powder mixture having a powder receiving space (3) that is connected to a vacuum creation device via a vacuum line (19) that discharges to the upper region of said powder receiving space. A reduced pressure in comparison to a mixing chamber (7) can be created within the powder receiving space (3), and thus a gas flow directed against the powder flow direction within a powder supply channel (6).