Abstract:
Provided are methods and systems for distributing coating materials using simultaneous vibration and rotation. Inertial forces generated during vibration and centrifugal forces generated during rotation redistribute the coating materials previously deposited on the surface resulting in uniform and/or conformal layers. The coated surfaces may have various shapes and degrees of roughness and may be referred to as complex surfaces. An initial layer of the coating material may be deposited on a complex surface of the part using dipping, spraying, spin coating, or other like techniques. The coating material is redistributed by simultaneous rotation and vibration of the part using specifically selected process conditions, such as orientation of vibrational and rotational axes relative to the part, rotational speeds, and vibrational frequencies and amplitudes. The redistribution operation may be repeated one or more times using different process conditions to ensure uniform distribution on different portions of the complex surfaces.
Abstract:
A device, method, and system for creating a design on a design surface are provided. The device includes a first compartment that includes a receiving and positioning component and a channel configured to receive and position a wax stick at the receiving and positioning component. The device includes a second compartment having a melting component that includes a heating element, a temperature measurement element, and a nozzle. The nozzle includes a nozzle opening configured to receive the wax stick, the nozzle directly aligned with the channel of the receiving and positioning component. The nozzle also includes a nozzle tip configured to transfer melted portions of the wax stick from the nozzle to a design surface on a spinning component in a third compartment of the device.
Abstract:
Provided is a coating device including: a substrate carrying unit which rotatably holds a substrate while the substrate is upright and is able to dispose the held substrate at a first position and a second position; an application unit which includes a liquid material nozzle ejecting a liquid material to each of first and second surfaces of the substrate disposed at the first position; and a removal unit which includes an accommodation mechanism accommodating a part of the peripheral edge portion of the substrate disposed at the second position and a cleaning liquid ejection mechanism ejecting a cleaning liquid to the peripheral edge portion and removes the liquid material of the peripheral edge portion.
Abstract:
A method for etching a workpiece may be provided, which may include: determining a plurality of reference etch profiles for a plurality of positions of an etchant dispenser, each reference etch profile corresponding to a respective position of the plurality of positions of the etchant dispenser; determining a thickness profile of the workpiece; determining a respective etch duration for each position of the plurality of positions of the etchant dispenser based on the determined thickness profile and the plurality of reference etch profiles, to reduce a total thickness variation of the workpiece; and dispensing an etchant over the workpiece via the etchant dispenser for the determined respective etch duration for each position of the plurality of positions.
Abstract:
A stent with at least one severable supporting device and methods of coating using the same are disclosed. The severable supporting device can be an end tube or a tab attached to some portion of the stent by at least one “gate” or attachment. The end tube or tab may be part of the design of the stent when it is originally manufactured, or it may be attached to the stent in a secondary process by a biocompatible glue or solder. The end tube or tab can be used to support a stent during a coating process eliminating the need for a mandrel which would otherwise contact the stent during the coating process.
Abstract:
A cylindrical coating nozzle having a flattened end is placed above a coating object being rotated. A coating solution is applied to a surface of the coating object by discharging the coating solution form a nozzle orifice at an end of the coating nozzle while moving the coating nozzle relative to the coating object in a direction intersecting a rotational direction of the coating object. The coating nozzle is formed with an angled notch at a part of the end thereof. A rotation control unit controls the rotation of the coating nozzle in a manner that the notch of the coating nozzle is positioned upstream from a position to feed the coating solution to the coating object being rotated.
Abstract:
The present invention has an object to provide a method for manufacturing a plurality of high quality cylindrical members. The method includes: vertically holding a mandrel so as to be coaxial with a central axis of an annular slit; and discharging a liquid coating through the slit to form a film of the coating on a surface of the mandrel while vertically moving up the mandrel. A circular cleaning blade is rotatably mounted around a lower holding shaft. The step includes the steps of: (1) forming a film of the coating up to a lower end of a coating region of the mandrel, and then stopping the discharge; and (2) moving up the lower holding shaft so that the cleaning blade passes through the annular slit to clean it, in this order. Then the cleaning blade is rotated to clean the cleaning blade.
Abstract:
Described herein are methods and systems for the manufacture of composite articles, wherein a composite article is manufactured using a filamentary material and a liner, comprising: providing a material in heat transfer relation with the inner surface of said liner; applying uncured filamentary material to the outer surface of said liner; and heating a portion of said material in heat transfer relation with the inner surface of said liner, wherein heating said portion of said material effects cure of said composite article. Also in the methods and systems herein, a composite article is manufactured using a filamentary material wound on a liner, comprising, a material in heat transfer relation with the inner surface of said liner; heating means operable to heat a portion of said material in heat transfer relation with the inner surface of said liner, wherein heating said portion of said material effects cure of said composite vessel.
Abstract:
A film formation device (10) that increases the mechanical resistance of the liquid repellent film formed on the oxide film. The film formation device (10) includes an oxide film formation unit (14, 15, 16), which forms an oxidized film on a substrate by releasing grains towards the substrate that is rotated in a vacuum chamber (11), and forms an oxide film on the substrate by emitting oxygen plasma towards the oxidized film. A vapor deposition unit (17) vapor-deposits a silane coupling agent, which contains a hydrolytic polycondensation group and a liquid repellent group, on the oxide film. A polycondensation unit (20) polycondenses the silane coupling agent by supplying water towards the oxide film on the rotated substrate. The polycondensation unit supplies water to the oxide film before the vapor deposition unit vapor deposits the silane coupling agent on the oxide film.