A mobile hydrogen-oxygen burner rainmaking device includes a container, two liquid storage barrels, a combustion chamber and an igniter. The container has an accommodating space and a gas pipe. The liquid storage barrel is disposed in the accommodating space and connected to a nozzle and filled with liquid hydrogen and liquid oxygen separately. The combustion chamber is disposed in the accommodating space and has an opening. The igniter is installed in the combustion chamber. Each nozzle sprays the liquid hydrogen and liquid oxygen in a mist form into the combustion chamber for mixing, and the igniter ignites for combustion to form a high-temperature and high-pressure water vapor to be discharged from the opening along the gas pipe, so that the rainmaking device may be transported by a container truck to an appropriate location for operation to achieve the desirable rainmaking effect.

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.

A method and coating system are provided that use a temperature controlled gas flow to smooth a surface of a ceramic, like a thermal barrier coating (TBC). Thermal spray coating unit coats a ceramic on a surface. The thermal spray coating unit creates a flow of ceramic material towards the surface. A layer of at least partially molten ceramic material on the surface is smoothed by transmitting a flow of temperature controlled gas across the at least partially molten ceramic material on the surface after the thermal spray coating of the ceramic on the surface. The solidified ceramic has a smoother surface that requires much less polishing to attain a desired surface roughness.

A flame coating machine for coating field joints of a pipeline has a flame spray system having two flame spray units configured for heating and/or coating with a thermoplastic polymer an annular junction portion and two annular end portions of an existing coating delimiting the annular junction portion; a control system having two temperature sensors configured for acquiring temperature values along the surface collectively defined by the annular junction portion and the annular end portions, and a control unit configured for actuating the flame spray unit in a polymer flame spraying mode or in a flame heating mode as a function of the detected temperature values and at least one threshold value.

In order to create a rotating unit for a coating lance device for thermally coating an interior, it is provided that the rotary drive is implemented as a hollow-shaft motor coaxial with the axis of rotation of the tool holder, and wherein the tool holder and the coating material feed, as well as the process media feed, are located centrally relative to the hollow-shaft motor. Furthermore, in order to create a coating lance device for thermally coating an interior, it is proposed to provide such a rotating unit; at least one linear actuator for axial and/or lateral positioning of the rotating unit relative to an interior to be coated; and stationary supply connections for supplying electricity to the coating lance, and for the coating material feed, and for the process media feed.

A coating system (1) is provided which includes an ultrasonic sprayer (3) capable of spraying a coating fluid onto a target surface (5). A convective or infrared heater (21) is associated with the sprayer and is operable to heat the spray (23) produced by the sprayer (3).

A method and coating system are provided that use a temperature controlled gas flow to smooth a surface of a ceramic, like a thermal barrier coating (TBC). Thermal spray coating unit coats a ceramic on a surface. The thermal spray coating unit creates a flow of ceramic material towards the surface. A layer of at least partially molten ceramic material on the surface is smoothed by transmitting a flow of temperature controlled gas across the at least partially molten ceramic material on the surface after the thermal spray coating of the ceramic on the surface. The solidified ceramic has a smoother surface that requires much less polishing to attain a desired surface roughness.

PROBLEM: To provide a large device and a method which is advantageous for forming a large-area amorphous film. SOLUTION: A device of the invention sprays a flame including a particulate material with a spraying machine toward a substrate, melts the material with the flame, and cools the material and flame by cooling gas before they reach the substrate to form an amorphous film. The spraying machine has particulate material spraying ports and flame spraying ports such that the flame including the material has an oblong cross section. Inert gas spraying ports are successively placed on both sides across the ports of the material and flame. Mist spraying ports are successively placed on both sides across the ports for the material, flame and inert gas. A skirt is attached/detached depending on a combustion gas or a film width to restrain film width narrowing and increase of film thickness deviation.

In order to create a rotating unit for a coating lance device for thermally coating an interior, it is provided that the rotary drive is implemented as a hollow-shaft motor coaxial with the axis of rotation of the tool holder, and wherein the tool holder and the coating material feed, as well as the process media feed, are located centrally relative to the hollow-shaft motor. Furthermore, in order to create a coating lance device for thermally coating an interior, it is proposed to provide such a rotating unit; at least one linear actuator for axial and/or lateral positioning of the rotating unit relative to an interior to be coated; and stationary supply connections for supplying electricity to the coating lance, and for the coating material feed, and for the process media feed.

A flame coating machine for coating field joints of a pipeline has a flame spray system having two flame spray units configured for heating and/or coating with a thermoplastic polymer an annular junction portion and two annular end portions of an existing coating delimiting the annular junction portion; a control system having two temperature sensors configured for acquiring temperature values along the surface collectively defined by the annular junction portion and the annular end portions, and a control unit configured for actuating the flame spray unit in a polymer flame spraying mode or in a flame heating mode as a function of the detected temperature values and at least one threshold value.