Abstract:
Apparatus for applying a non-slip coating to the bottom of an enameled bathtub or shower tray made of steel or cast iron, by atomizing or spraying on a refractory substance heated by means of a burner approximately to liquefaction, wherein the non-slip surface is subdivided into a plurality of individual areas spaced from each other by a mask having openings each separately defined by an open-ended cup-like element made of a thermally conductive metal resistant to heat and oxidation, said cup being adapted at one end to contact the surface to be coated along a line and being of increasing internal cross section and wall thickness at least for a part of the depth of the cup from said one end toward its other end and a cup support including a lost motion means effective upon registration with said bottom.
Abstract:
In a coated particle, a surface of a base material particle is coated with a carbon particle. The carbon particle is produced by disposing an explosive substance with a detonation velocity of 6,300 m/sec or higher in a periphery of a raw material substance containing an aromatic compound having two or less nitro groups, and detonating the explosive substance.
Abstract:
A powder coating composition is provided herein. The powder coating composition includes a glycidyl-functionalized (meth)acrylic resin as a film-forming binder, a cross-linking agent (hardener) for the binder, particles chosen from the group comprising aluminum oxide Al2O3 and aluminum hydroxide Al(OH)3 particles, and a coating additive, the wt % based on the total weight of the powder coating composition. A process for the production of a scratch resistant powder coating is also provided herein. The process includes the steps of a) applying a transparent clear coat or a pigmented top coat directly onto a substrate surface or onto a prior coating, and b) curing the clear coat or the top coat applied in step a) wherein the transparent clear coat or the pigmented top coat includes the powder coating composition.
Abstract:
The described embodiments relate generally to methods for forming structures by solid state deposition processes. More specifically a method for depositing cold spray over a removable body is disclosed. Methods are also disclosed for affixing operational and structural components to a surface of a device housing with cold spray.
Abstract:
The invention provides a powder coating composition comprising of thermoplastic polymers, ceramic particles, and cermet particles for lowering the friction coefficient, and improving wear and corrosion resistance of coated surfaces in high-temperature, high-pressure, and corrosive environments. It also provides a method of coating application for improving adhesion of the coating to the substrate. The coating compositions are devoid of volatile organic solvents and can be applied on surfaces using thermal spraying, compression molding and other particle sintering approaches. A multilayer architecture consisting of an adhesive bottom layer and a non-adhesive, low friction top layer is disclosed. The coating can be used in oil and gas production and seawater injection.
Abstract:
The method for spraying thermoplastic powders provides to feed a flow of compressed air and/or nitrogen and a liquefied petroleum gas through respective separated discharge chambers (9, 12), shaped inside a mixing device (1) of a spray gun (100), the separated discharge chambers (9, 12) being in communication with a mixing chamber (15). Then a flame is ignited at the mixing chamber, through a flame ignition device (30) connected with the gun (100), said device comprising a spark ignition device (31, 310), and a conductor element (32) associated with the mixing device (1) and connected with the spark ignition device (31, 310). The thermoplastic powders are mixed with a transport inert gas, and fed through a further discharge chamber (7) communicating with the mixing chamber (15). Then the spray gun is operated to spray the thermoplastic powders through the flame onto the surface of the article to be coated, to cause the melting of the same powders.