Abstract:
A process for coating an edge within a hole in a coated component is provided. The hole is a cooling-air hole operable conduct a coolant therethrough. According to the processes, an outer coating is provided on the outer surface of the component. An inner coating is provided on an inner surface within the hole, wherein the inner coating within the hole takes place using a coating nozzle at a different angle to the coating of the outer surface around the hole, if the spray angles for the outer coating and inner coating relate to the outer surface.
Abstract:
An apparatus and method for thermal spraying a metal coating on a substrate is accomplished with a modified pulsejet and optionally an ejector to assist in preventing oxidation. Metal such as Aluminum or Magnesium may be used. A pulsejet is first initiated by applying fuel, air, and a spark. Metal is inserted continuously in a high volume of metal into a combustion chamber of the pulsejet. The combustion is thereafter controlled resonantly at high frequency and the metal is heated to a molten state. The metal is then transported from the combustion chamber into a tailpipe of said pulsejet and is expelled therefrom at high velocity and deposited on a target substrate.
Abstract:
A coating method through HVOF spraying that comprises generating a combustion jet in a combustion chamber connected to one end of a barrel while controlling the temperature of the combustion jet by supply of an inert gas to the jet, feeding resin coating materials into the temperature-controlled combustion jet and leading them to pass through the barrel, and spouting the coating particles through a spout port along with the combustion jet therethrough to thereby coat the substrate surface; wherein the length of the barrel, the temperature of the combustion jet and the physical properties of the coating particles are defined so as to satisfy both the following formulae (1) and (2). Numerical Formula 1 α × t r > 0.5 ( 1 ) Numerical Formula 2 2.5
Abstract:
A component for use in an engine in which the component is subjected to at least one of a high temperature, a corrosive atmosphere, an oxidizing atmosphere, a high mechanical load, a cyclic thermal load and transient conditions such that the component is prone to crack formation and propagation. At least one base material includes a self healing system in a form of an added active phase, the self healing system including at least one of a melting point depressant and a substance having a softening or a melting point below or within a range of an operating temperature of the component.
Abstract:
A fabric or belt and a method for forming such a fabric or belt, including a base support structure and at least one coating with the coating being applied by a thermal spray process.
Abstract:
Method for performing a thermal spray process. Method includes heating and/or accelerating a gas to form an effluent gas stream, feeding a particulate-bearing carrier stream through an axial injection port into the effluent gas stream to form a mixed stream, in which the axial injection port includes a plurality of chevrons located at a distal end of said axial injection port, and impacting the mixed stream on a substrate to form a coating.
Abstract:
This invention provides a composition for forming a fabric by spraying onto a supporting surface, the composition comprising fibers, a binder dissolved in a first carrier and a second carrier wherein the boiling point of the second carrier is at least 400 C and is higher than the boiling point of the first carrier. Further aspects of the invention include the fabric formed by spraying the composition and an article comprising the fabric, an apparatus and a method for spraying the composition.
Abstract:
A spray coated member having an excellent resistance to plasma erosion is produced by irradiating an electron beam to an outermost surface layer portion of a ceramic spray coated portion covering a surface of a substrate to form an electron beam irradiated layer.
Abstract:
In a thermally sprayed, gastight protective layer for metal substrates, especially those based on Fe, Ni, Al, Mg and/or Ti, wherein the spray powder for the purpose comprises at least two components, of which the first is a silicate mineral or rock and the second is a metal powder and/or a further silicate mineral or rock, the silicate mineral or rock component in the spray powder has an alkali content of less than 6 per cent by weight.
Abstract:
A method of making a thermal spray powder is provided. The method comprises: providing a powder comprising a plurality of porous particles; infiltrating a mixture comprising a solvent and a plurality of solid lubricant particles into the porous particles; and heating the powder to a temperature sufficient to evaporate the solvent. The method of forming a wear-resistant coating is provided. The method comprises: providing a thermal spray powder; heating the thermal spray powder; and accelerating the thermal spray powder from a thermal spray gun onto the substrate, to form a deposit. Yet another embodiment provides a wear resistant coating. The wear resistant coating is formed by thermally spraying the thermal spray powder.