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:
The present invention is directed to an apparatus for directing steam, hot water or hot water vapor and hot air onto a target area, the apparatus comprising a water container and a fuel container connected and supplying water and fuel to an applicator wand with an applicator head which generates steam and heat for application adjacent to the target area of application to the unwanted vegetation. Steam is generated immediately adjacent to the target area within the applicator head and combined with surplus heat from the steam generation process to produce heated steam and water vapor for application to the target area. In a preferred embodiment of the invention, the applicator wand is hand held, the applicator head having an inlet, an outlet and a body therebetween, the water and fuel being supplied to a steam generator and burner within the body of the applicator head which generates steam and hot air adjacent to the target area for application through the outlet to the target.
Abstract:
The burner body (2) comprises elongate recesses (20, 21, 22) which are accessible from the side where the body (2) is connected to the base (15) and which receive at least two interchangeable fuel gas-oxidation gas injectors (23). Each injector is provided with a feed channel (50) for the fuel gas and a feed channel (60) for the oxidation gas. The power and the flame profile of the burner may easily be adapted by the user to the different utilisations of the burner.
Abstract:
Systems and methods for applying a coating to an interior surface of a conduit (11). In one embodiment, a spray gun (14) configured to apply a coating is attached to an extension arm (12) which may be inserted into bore of pipe (11). The spray gun may (14) be a thermal spray gun (14) adapted to apply a powder coating. An evacuation system may be used to provide a volume area of reduced air pressure for drawing overspray out of the pipe (11) interior during coating. The extension arm (12) as well as the spray gun (14) may be cooled to maintain a consistent temperature in the system, allowing for more consistent coating.
Abstract:
A torch for thermal spraying stored rotatably in the front portion of a nozzle (40) and having a delivery mouth ring (60) with a droplet passage (61) at the center thereof, wherein a projection (63) converting the discharge direction of droplets (81) is formed at the tip part center of the delivery mouth ring (60), an air injecting space (66) allowing rotating air to be blown therein is formed at the rear end of the delivery mouth ring (60) projectedly from the delivery mouth ring (60) by integrally forming with each other a plurality of arm parts (65) disposed in an air blowing tube (50) stored in an outer tube (10), and a rotating force is given to the delivery mouth ring (60) by the air blown from an air blowing port (53) disposed on the outside of the air blowing space (66) so as to bring the rotation speed of the delivery mouth ring (60) for radially discharging the droplets (81) into the range of 800 to 6000 rpm, whereby thermal spraying can be performed on the internal surfaces of the pipes and cylinders, and the thickness of a thermal spraying film (82) can be optimized.
Abstract:
An apparatus and method for manufacturing ultra-fine particles using an electrospray device is disclosed. One or more capillary provided at its tip with a nozzle is positioned within a guide duct and precursors such as metal organic materials and metal halogen compounds, or nonvolatile substances or volatile substances are supplied to the capillary. Voltages are applied to the capillary and the guide duct, respectively, so that a voltage difference is generated therebetween and the highly charged liquid droplets from the capillary are sprayed. The sprayed liquid droplets are carried along the guide duct together with carrier gas injected into the guide duct. When heat energy is applied to the liquid droplets, chemical reactions of the liquid droplets occur. A collecting plate positioned in front of the guide duct collects ultra-fine particles formed by the chemical reactions.
Abstract:
An apparatus and method for manufacturing ultra-fine particles using an electrospray device is disclosed. One or more capillary provided at its tip with a nozzle is positioned within a guide duct and precursors such as metal organic materials and metal halogen compounds, or nonvolatile substances or volatile substances are supplied to the capillary. Voltages are applied to the capillary and the guide duct, respectively, so that a voltage difference is generated therebetween and the highly charged liquid droplets from the capillary are sprayed. The sprayed liquid droplets are carried along the guide duct together with carrier gas injected into the guide duct. When heat energy is applied to the liquid droplets, chemical reactions of the liquid droplets occur. A collecting plate positioned in front of the guide duct collects ultra-fine particles formed by the chemical reactions.
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.