Abstract:
The method for flame coating tubular elements provides for arranging a said tubular element (2) to be coated at a coating station, providing an applicator unit (3), operating in the coating station, in an inactive configuration, spaced from the tubular element (2), the applicator unit (3) carrying at least one thermoplastic powders flame applicator device (4) and being alternatively operable between the inactive configuration and an active configuration, approached radially to the tubular element (2). After having brought the applicator unit (3) towards the tubular element (2), the method provides for operating the same unit (3) in the active configuration, so as to peripherally engage the element (2) itself. The applicator device (4) is turned on, the thermoplastic powders are fed and the applicator device (4) is operated in motion around and/or along the tubular element (2) so as to flame coating it with a controlled flow of thermoplastic powders.
Abstract:
Provided is a method of nitriding a surface of aluminum or aluminum alloy by cold spraying. That is, a surface of aluminum or aluminum alloy is coated by cold spraying, and then a heat treatment is performed thereon at low temperature for a short time period. Accordingly, the method is suitable for nitriding a surface of Al and Al alloy, which is very difficult to be nitrided, at low production costs. The method includes removing a foreign material from a surface of a mother substrate comprising Al or Al alloy; cold spraying 15 to 50 wt% of a catalyst powder and 50 to 85 wt% of a coating agent powder on the surface of the mother substrate to form a coating layer; and heat treating the coating layer at a temperature of 450 to 630 °C in a nitrogen atmosphere for 2 to 24 hours.
Abstract:
The invention relates to a method for doping and/or coloring glass. In the method a two- or three-dimensional layer is formed on the surface of the glass, and the layer is further allowed to diffuse and/or dissolve into the glass to change the transmission, absorption, reflection and/or scattering of the electromagnetic radiation of the glass. The layer of nanomaterial comprises at least one component that causes the above-mentioned change and at least one component that lowers the melting point of the above-mentioned component causing the change.
Abstract:
Disclosed are methods for coating a substrate. These methods include: (a) vertically orienting the substrate between a vertically oriented backstop and a spray gun; (b) at least partially coating the vertically oriented substrate with a substantially 100% solids, radiation curable liquid coating composition by passing the composition through the spray gun wherein the composition is atomized; whereby a portion of the atomized coating composition deposits on the vertically oriented substrate and a portion of the atomized coating composition deposits on the vertically oriented backstop; (c) exposing the coated substrate to ionizing radiation and/or actinic radiation to cure the coating composition deposited thereon; and (d) removing and reusing at least a portion of the coating composition deposited on the vertically oriented backstop. Related coating systems are also disclosed.
Abstract:
The present invention relates to a powder thermal spray composition having a thermoset material and a thermoplastic material. The thermal spray compositions may also include phosphorescent materials to allow the substrate to glow in the dark when applied and/or anti-microbial materials to retard microbial growth on surfaces to which it is applied. The present invention also relates to zinc plastic thermal spray compositions used to coat surfaces, such as steel, to more effectively bond thermal spray compositions and to prevent corrosion of the steel.
Abstract:
A method of depositing a dielectric coating, comprising the steps of forming an unroughened or roughened, as-cast or wrought substrate surface to receive the coatings; and flame spraying a single premixed thermoplastic epoxy/hardener powder onto the surface, the resultant in-flight heated powder being chemically activated to impact the surface and form a chemically adhering coating, the coating being cured in-situ to be dielectric and thermally conductive.
Abstract:
기재 표면에 철계 비정질 합금 분말을 코팅함으로써, 코팅 이후에도 비정질 구조의 유지가 가능하여 기재의 내구성, 표면 경도, 마찰력 등을 향상시킬 수 있는 코팅체를 제공한다. 상기 코팅체는 기재 및 상기 기재의 표면에 구비된 철계 비정질 합금으로 이루어진 코팅층을 포함한다.