摘要:
A device for coating of a surface of a substrate with a coating material which has at least one coating component and at least one solvent, with the following features: a chamber which can be pressurized, a holding apparatus for holding the substrate on a holding surface and a spray nozzle for coating of the substrate, characterized in that the device has cooling means for cooling of at least the surface of the substrate which is held on the holding surface of the holding apparatus. Furthermore the invention relates to a corresponding method.
摘要:
An apparatus for applying an asphalt binder composition to a roadway during construction or repair of an asphalt pavement which apparatus include: a mobile vehicle having a chassis extending in a longitudinal direction which longitudinal direction is aligned with a forward/rearward direction of travel of said mobile vehicle; at least one storage tank supported on the chassis containing an asphalt binder composition; and at least one spray nozzle configured to dispense the asphalt binder composition from the at least one storage tank in a longitudinal strip or band having a width that is no greater that a width of the asphalt binder composition dispensed by one of the at least one spray nozzle. The at least one spray nozzle can include a plurality of spray nozzles that are coupled to a common spray bar. According to one embodiment the asphalt binder composition is a void reducing asphalt membrane composition that is provided between adjacent asphalt pavement passes.
摘要:
An apparatus and method for processing elongated sheet material through a plurality of processing stations including a cooling station for lowering the temperature of the sheet material. The cooling station includes a plurality of individually controllable cooling zones each for controlling a portion of the transverse width of the sheet material during passage through the cooling zone. The cooling zones each include a plurality of cooling fluid directing spray nozzles and a sensor for sensing the temperature of the portion of the sheet material onto which cooling fluid has been directed by the respective cooling zone. A controller responsive to the temperature sensed at each cooling zone is operable for independently controlling the flow of cooling fluid to the fluid spray nozzles of each cooling zone based upon a preset temperature setting of the controller.
摘要:
Polymer particles containing a polyoxymethylene polymer for coating metallic substrates are described. The polymeric particles contain a polyoxymethylene polymer in combination with an adhesion promoter which may comprise an acid modified polyolefin and performance enhancing additives. The polyoxymethylene polymer and the adhesion promoter may also be combined with a thermoplastic elastomer and optionally a coupling agent. Also disclosed is a process where the polymeric particles are used to from a fluidized bed for coating metallic substrates. In one embodiment, after being coated with the polymer particles, the coated metal substrate is gas cooled followed by cooling the coated substrate in a bath containing an aqueous medium.
摘要:
The present invention is directed to a method for coating a surface of a medical device with a coating composition. The method involves chilling the surface to be coated to below the freezing point of at least one solvent contained in the composition. This coating composition is applied to the chilled surface, and a portion of the coating composition is allowed to freeze onto the surface. The surface can then be heated (either by the application of heat from an external source, by allowing to heat by ambient air) to above the freezing point of the solvent in the coating composition to allow the solvent to thaw and be removed, thereby forming a smooth, uniform coating on the surface of the medical device.
摘要:
A process for the surface treatment of a part wherein it comprises subjecting the surface of said part in an inert atmosphere to the action of a hot gaseous arc plasma, and followed by the immediate cooling of the thus treated surface by projecting on to the same a cooling liquid at a temperature close to its saturation point which is a temperature whose variation from the saturation temperature does not exceed 15.degree. C.
摘要:
A process of forming a film of a fluorine-containing resin on a surface of a metallic substrate, wherein the substrate is coated with the fluorine-containing resin and is placed in a furnace vacuumized to a predetermined degree within a range containing the order of 10.sup.-3 Torr. The vacuumized atmosphere in the furnace is heated at a predetermined heating temperature of the range of from about 330.degree. C. to about 420.degree. C. for a predetermined period of time, whereupon the hot vacuumized atmosphere in the furnace is allowed to cool spontaneously with a vacuum of preferably the same degree maintained in the furnace until the temperature in the furnace reaches a predetermined pre-quenching temperature lower than the heating temperature and, thereafter, an inert gas at ambient temperature is introduced into the furnace for quenching the coating on the substrate.
摘要:
Methods and processes for applying powder coat faux finishes, and power coat materials associated with such methods and processes are provided. Processes employ one or more partial powder coat layers along with physical texturing techniques to provide a variety of powder coated faux finish effects. Methods may utilize standard powder coating formulations in contrasting combinations to form suitable faux finishes. Faux finishing techniques using powder coating procedures may reproduce effects previously only obtainable with wet techniques, such as, for example, sponging, color washing, rag rolling, marbleizing, faux granite, strié, antiquing, verdigris, wood graining, weathered patina, etc. Kits of materials, including powder coating materials and physical texturing equipment suitable to reproduce such faux finishes are also provided.
摘要:
A method is provided for manufacturing a humidity sensing material. Particles of a trivalent rare earth hydroxide or oxide (such as lanthanum hydroxide) are mixed with particles of barium oxide and titanium dioxide in specified proportions. The particle mixture is heated to generate a sintered mixture that is milled. The resulting milled particles are mixed with glass particles, an organic surfactant, a solvent, an organic vehicle, and an alkali hydroxide. The resulting liquid mixture is deposited as a layer thereof onto a substrate. The substrate and layer thereon are processed to remove liquid portions of the liquid mixture. Such liquid removal processing includes at least one cycle of heating the layer followed by a corresponding cycle of cooling the layer in a nitrogen atmosphere containing less than 25 parts per million of oxygen.