Abstract:
The invention relates to a method for removing at least one inorganic layer from a component, whereby a plasma jet is produced in a working gas containing a reactive gas by means of an atmospheric discharge, the plasma jet is oriented towards the inorganic layer, the inorganic layer is at least partially melted by means of the plasma jet, and the at least partially melted inorganic layer is removed from the surface by the gas flow of the plasma jet. The inventive method can be used especially for delayering adhesive surfaces of two components, and for machining headlight components. The invention also relates to a device for producing a plasma jet for carrying out the inventive method.
Abstract:
The invention relates to a method for producing a low-pressure plasma consisting in generating a negative pressure in a low-pressure chamber by means of a vacuum pump and in leading a plasma beam at a high pressure to said low- pressure chamber. Said invention also relates to different use a low-pressure plasma for treating surfaces, surface coatings or gases. A device for producing a low-pressure plasma is also disclosed.
Abstract:
Procedimiento para el recubrimiento de superficies - en el cual se genera un rayo de plasma (28; 28¿; 28¿) por el paso de un gas de trabajo a través de una zona de activación (12), - en el cual se alimenta un material precursor de modo separado del gas de trabajo dentro del rayo de plasma, - en el cual se hace reaccionar el material precursor con la ayuda del rayo de plasma y - en el cual se deposita el producto de reacción sobre la superficie (34), - donde tanto la reacción como también la deposición tienen lugar bajo una presión atmosférica caracterizado por el hecho de que por la colocación de una tensión alterna de alta frecuencia se genera una descarga de arco en los electrodos (10, 18) colocados dentro de la zona de activación.
Abstract:
A method for coating surfaces, for which a precursor material is caused to react with the help of plasma and the reaction product is deposited on a surface, the reaction as well as the deposition taking place at atmospheric pressure, such that a plasma jet is generated by passing a working gas through an excitation zone and the precursor material is supplied with a lance separately from the working gas to the plasma jet.
Abstract:
A method for coating surfaces, for which a precursor material is caused to react with the help of plasma and the reaction product is deposited on a surface, the reaction as well as the deposition taking place at atmospheric pressure, such that a plasma jet is generated by passing a working gas through an excitation zone and the precursor material is supplied with a lance separately from the working gas to the plasma jet.
Abstract:
Process for plasma coating workpieces (44) comprises producing a jet (42) of atmospheric plasma by electrical high frequency discharge using a plasma nozzle (10), and using the jet to coat the workpiece surface. At least one of the components of the coating material is contained as a solid in an electrode (26) of the plasma nozzle and is sputtered from the electrode using high frequency discharge. An independent claim is also included for a device for plasma coating workpieces.
Abstract:
A method for treating a bond area of a workpiece, and a method for adhesively bonding workpieces are disclosed. The method for treating a bond area of a workpiece includes cleaning the bond area, activating the bond area, coating at least a portion of the bond area with an adhesion promoter, and chemically transforming the adhesion promoter with an aftertreatment. The method for adhesively bonding workpieces includes cleaning a bond area of a first workpiece, activating the bond area, coating at least a portion of the bond area with an adhesion promoter, chemically transforming the adhesion promoter with an aftertreatment, applying an adhesive to the bond area, bringing the other workpiece into contact with the first workpiece, and curing the adhesive.