Abstract:
An alloy wheel is formed having a three dimensional configuration defining a face and recessed surfaces. The face of the wheel is machined providing a smooth surface at the face and defining an edge between the smooth surface of the face and the recessed surfaces. A nozzle element for projecting a plasma jet toward the wheel is provided. The plasma jet is projected toward the smooth surface of the face, the edge, and toward at least a portion of the recessed surfaces forming an alloy oxide at least on the face and the edge disposed between the face and the recessed surfaces. A first polymeric coating is applied over the face, the recessed surfaces and the edge disposed between the face and the recessed surfaces.
Abstract:
An alloy wheel is formed having a three dimensional configuration defining a face and recessed surfaces. The face of the wheel is machined providing a smooth surface at the face and defining an edge between the smooth surface of the face and the recessed surfaces. A nozzle element for projecting a plasma jet toward the wheel is provided. The plasma jet is projected toward the smooth surface of the face, the edge, and toward at least a portion of the recessed surfaces forming an alloy oxide at least on the face and the edge disposed between the face and the recessed surfaces. A first polymeric coating is applied over the face, the recessed surfaces and the edge disposed between the face and the recessed surfaces.
Abstract:
The present invention provides an apparatus for forming an amorphous coating film by jetting flame containing particles of a flame spray material from a flame spray gun toward a base material, causing the particles to be melted by the flame, and cooling both the particles and the flame with the means of a cooling gas before they reach the base material. The apparatus includes a tubular member provided among the path along which the flame is jetted that it surrounds the flame passing through a melting zone in which the particles are melted. The tubular member has a flow channel for the cooling gas, formed along and integrally to the tubular member. The apparatus has the following advantages: a variety of metals including those ones having high melting points and narrow supercooling temperature ranges can be used to form an amorphous coating film on a base material; the apparatus can be made compact; and production of oxides is suppressed.
Abstract:
A torch (1) for thermal spraying of surface coatings, of the type that comprises a head (3) and a bracket (2) for the head (3), in which the head (3) pivots relative to the bracket (2). The invention also relates to the coatings obtained using the torch, whether of polymer, metal or ceramic materials, on any substrate coated thereby, whether of polymer, metal or ceramic or composite materials. The invention is applicable to different types of thermal spray torches, using plasma spray, combustion spray, High Velocity Oxygen Fuel (HVOF), or Low Velocity processes.
Abstract:
Mit einer Düse (1) für eine Vorrichtug zum Hochgeschwindigkeitsflammen von metallischen, metallisch-carbidischen und/oder oxidkeramischen Werkstoffen, wobei die Düse (1) mit einer Spritzmedienzufuhr, einer Gasgemischzufuhr mit Brennkammer und einem gekühlten Beschleunigungsbereich (4) ausgerüstet ist, soll eine Lösung geschaffen werden, mit der die Temperatur der Flamme einstellbar ist, wobei das temperaturregelnde Fluid unmittelbar beim Hochgeschwindigkeitsflammenspritzen eingesetzt werden kann. Dies wird dadurch errreicht, daß wenigstens für einen Teil der Kühlung des Beschleunigungsbereiches (4) Gaskühlkanäle (9) und /oder -ringräume für Umgebungsluft als Kühlgas mit Injektionsöffnungen (11) zum Ansaugen des Kühlgases in das Innere der Düse (1) vorgesehen sind.