Abstract:
A method of coating a complex shaped product such as a nozzle guide vane of a gas turbine engine. The method comprising supplying a coating material into the interior of the vane 10. Locating the vane 10 on a rotating table 14 before the coating material is fully bonded on to the vane 10, and spinning the table 14 to remove excess coating material from the vane 10.
Abstract:
The invention concerns a procedure and a mechanism for the painting/lacquering and the subsequent hardening of the paint/lacquer layer on a previous molded object (2) preferably of plastic. The invention is characterized by the fact, that all the mentioned processes are carried out in the same tool that performs the molding of the objects (2), which shall be painted/lacquered and hardened. This can be realized by the molding-tool, which can both be a one- and a multi-component tool, is supplied with at least one turnable mold part (1), which through stepwise turning, each of e.g. 90 degrees, leads the object through four stations, where the objects respectively are molded, painted/lacquered, hardened and finally ejected from the turnable mold part (1), wherein they after the molding and until the ejection has been positioned.
Abstract:
An apparatus and method for simultaneously coating and measuring a part. The apparatus includes a part support, a sprayer and a part measurer positioned adjacent to the part support and a display device positioned adjacent to the part support. The sprayer applies a coating to a section of the part while the part measurer continuously measures a dimension of the section of the part being coated. In one embodiment, an initial amount of coating and a final amount of coating are applied to the section of the part based on the dimension measurements and desired dimension of the part. In another embodiment, the amount of coating applied to the part is based on the desired coating thickness. As a result, the apparatus and method of the present invention significantly reduces the margin of error related to the application of coatings to parts.
Abstract:
A method for coating a substrate includes rotating the substrate about an axis, and applying a polymeric reaction mixture to a surface of the rotating substrate by ejecting the polymeric reaction mixture through a die. The die has a branched system of channels for dividing an inlet stream of the polymeric reaction mixture into plural outlet streams. The outlet streams are spaced apart from each other such that the outlet streams flow together seamlessly after application to the substrate. The die and the rotating substrate are moved longitudinally relative to each other. And the material output rate of the mixture and the relative movement of the die are synchronized with the rotational speed of the substrate in such a way that successive convolutions of polymeric reaction mixture overlap and connect together seamlessly.
Abstract:
An apparatus and method for applying a coating to an object such as a container or an injection blow molded bottle comprising initial staging of an object or container onto an application holding unit, which may employ a grounding pin or mechanism to allow for application of a solvent based coating by electrospray techniques, may further be capable of rotating the object or container during the spray application process and may further employ a positive registration means. The object may be spray coated while on the application holding unit. The object may be transferred to a secondary holding unit and subjecting the coated object to solvent evaporation. Initial curing of the coating by UV or infrared is performed while the object is on the secondary holding unit to the point where the object can rest on its base or a bearing surface without risking a loss of integrity of the coating. Finally, the object may be transferred to a final conveying unit, which may incorporate a positive registration means, for final mass curing by UV, infrared or convention heating.
Abstract:
In a method and apparatus for forming a plurality of films on the surface of a substrate, at least two liquid samples are deposited by a deposition device onto the substrate surface. The substrate is moved so that the liquid samples on the substrate are subjected to a non-contact spreading force sufficient to cause the samples to spread over the surface to form a respective film thereon. At least a portion of each film is discrete from one or more other films formed on each substrate surface. In another embodiment, liquid samples of different compositions are deposited on an array of substrates. The liquid samples on at least two of the substrates are subjected to non-contact spreading forces during overlapping durations of time whereby the spreading forces are sufficient to cause the samples to spread over respective surfaces of the substrates to form films thereon.
Abstract:
A patterned coating on a prosthesis, for example a stent, and a method for forming the coating are disclosed. Additionally, an apparatus for forming the patterned coating is disclosed.
Abstract:
Methods and systems for coating at least a portion of a medical device (e.g., a stent structure) include providing a plurality of coating particles (e.g., monodisperse coating particles) in a defined volume. For example, the particles may be provided using one or more nozzle structures, wherein each nozzle structure includes at least one opening terminating at a dispensing end. The plurality of coating particles may be provided in the defined volume by dispensing a plurality of microdroplets having an electrical charge associated therewith from the dispensing ends of the one or more nozzle structures through use of a nonuniform electrical field between the dispensing ends and the medical device. Electrical charge is concentrated on the particle as the microdroplet evaporates. With a plurality of coating particles provided in the defined volume, such particles can be moved towards at least one surface of the medical device to form a coating thereon (e.g., using an electric field and/or a thermophoretic effect).
Abstract:
A non-impact process and apparatus for coating printing cylinders with layers of a coating liquid, especially for coating flexographic printing sleeves with infrared sensitive layers.