Abstract:
The present invention relates to a method for producing a superamphiphobic coating on a substrate, said method comprising the steps of a) providing a substrate, b) generating a plasma in a treatment space, under atmospheric pressure, using a dielectric barrier discharge, by supplying a plasma gas (6) between at least a first and a second electrode (2 and 3) connected to alternating current (AC) power means (7), said electrodes (2 and 3) defining said treatment space (5), c) introducing into said plasma a coating forming material selected from the group consisting in fluoro-acrylate monomers, fluoro-alkyl acrylatemonomers, fluoro-methacrylate monomers, fluoro-alkyl methacrylatemonomers, fluoro-silane, monomers or a combination thereof, d) exposing at least a part of the surface of said substrate to said plasma comprising said coating forming material in multiple successive passes within said treatment space by moving said substrate, said at least first and/or second electrode (2, 3), or both, without stopping, from one pass to another, the generation of the plasma and said introduction of said coating forming material into said plasma.
Abstract:
Disclosed is a surface treatment device with a robust nozzle configuration. The device includes a nozzle for ejecting a primary stream of combustible substance to a gaseous atmosphere in an ejection direction; an ignition unit configured to ignite the primary stream in a point of ignition; and an impermeable shield providing a planar surface that is substantially opposite to the ejection direction and has in front of the nozzle a hole that allows passage of the primary stream. The shield is positioned between the nozzle and the point of ignition of the primary stream. The shield is advantageously dimensioned to allow simultaneous passage of the primary stream ejected from the nozzle and a circumferential secondary stream of gas from the gaseous atmosphere via the hole.
Abstract:
A proximity sensor includes a lead supported on an outer surface of a case structure and a sensor wire that extends from the lead and through an opening in the case structure. The sensor is formed by applying alternating layers of electrically conductive and non-conductive materials in a non-cured state. A base non-conductive layer is applied to an inner surface of the case structure around the sensor wire in a non-cured state. Once cured, a conductive layer is deposited onto the base non-conductive layer and encapsulates the sensor wire. A cover non-conductive layer is then deposited over portions of the conductive layer to insulate the conductive layer. Portions of the non-conductive layer are then removed such that an area of the conductive layer is exposed to define a sensor area.
Abstract:
An apparatus and method for forming a fusible coating or structure comprising a combustor that is operative to combust a fuel and contain the resulting flame to produce combustion products; means for cooling the combustion products to produce a hot carrier gas stream; and means for introducing fusible material into the hot carrier gas stream.
Abstract:
A method for regeneration of internal conduit surfaces by thermal projection of metals, includes inserting a device including a vehicle having a rolling assembly to permit rolling of the vehicle and carrying a thermal projection system, through a manhole in a conduit installation, including the steps of inserting the device in a conduit with the rolling assembly in a retracted position, and expanding the rolling assembly inside the conduit until the device is centered in the conduit; inserting electrical, pneumatic and/or hydraulic conduits and conduits for supplying metal to be thermally projected, through the manhole, such that the conduits are connected with the vehicle; positioning a regeneration device including the thermal projection system connected with the vehicle by a remote-control pulling system in a particular position to be regenerated; thermally projecting metal from the regeneration device; advancing the vehicle and connected regeneration device to a new regeneration position.
Abstract:
A method for regeneration of internal conduit surfaces by thermal projection of metals, includes inserting a device including a vehicle having a rolling assembly to permit rolling of the vehicle and carrying a thermal projection system, through a manhole in a conduit installation, including the steps of inserting the device in a conduit with the rolling assembly in a retracted position, and expanding the rolling assembly inside the conduit until the device is centered in the conduit; inserting electrical, pneumatic and/or hydraulic conduits and conduits for supplying metal to be thermally projected, through the manhole, such that the conduits are connected with the vehicle; positioning a regeneration device including the thermal projection system connected with the vehicle by a remote-control pulling system in a particular position to be regenerated; thermally projecting metal from the regeneration device; advancing the vehicle and connected regeneration device to a new regeneration position.
Abstract:
The present invention is directed to a process and apparatus for thermally spray coating the inside surface of a hydro-drive device, namely a Kort, so as to improve hydro-flow thrust and reduce the consumption of fuel for a vessel comprising the adapted Kort. The process of the present invention comprises thermally spraying a thermoplastic material in the area of the interior wall of the Kort that comes in close proximity to the propeller of the hydro-drive device. The closer the propeller comes to the interior wall of the Kort, the less friction and cavitations produced. Since friction and cavitations increases fuel consumption of the vessel, any reduction in the clearance between the wall of the Kort and the propeller tips directly reduces fuel consumption. At the same time, a reduction in clearance also increases the thrust of the hydro-drive device.
Abstract:
A method for modifying the surface of a solid material and a surface-modified solid material are provided, where an excellent adhesion strength between the surface of the solid material and any of coating films made of various UV-curing resins or the like can be obtained. In other words, it is attained by carrying out a silicatizing flame treatment on the surface of the solid material by wholly or partially blowing a flame of a fuel gas containing a specific silicon-containing compound having a flash point of 0 to 100° C. and a boiling point of 105 to 250° C., such as hexamethyldisilazane, vinyltrimethoxysilane, trifuloropropyl trimethoxysilane, 3-chloropropyl trimethoxysilane and the like.
Abstract:
The invention relates to a composite material comprising a material to be coated and a coating agent applied to the surface of the material to be coated to form a coating on it. According to the invention, the coating agent of the composite material is a polymer composite material formed from at least one polymer and a filler, which have been melt-mixed together in a desired mixture ratio and the melt mass thus formed has been extruded into a desired form, and the extruded polymer composite material has been thermally sprayed onto the material to be coated to form a coating on it.
Abstract:
An article spray coated with non-melting polymers using a high velocity oxygen fuel spray gun to coat a substrate with the non-melting polymers.