Abstract:
An apparatus for atomizing liquid coating material and electrostatically depositing the material on a surface to be coated comprising an elongated body of insulating material having two passages therethrough, one passage for liquid coating material and the other passage containing resistor means connected with a source of high electrical potential. An electrode is connected with said resistor means for electrostatically charging atomized particles of said coating material.
Abstract:
Electrostatic spray coating apparatus including means for mechanically atomizing coating materials and means for electrostatically charging and depositing the atomized material onto articles, characterized by the features, individually and collectively, of improved means including an improved charging electrode for the efficient and effective charging of the material, and enhanced overall construction for greater service life, more reliable and safe operation, and economy.
Abstract:
Proposed is a multi-needle head. The multi-needle head includes at least one adapter mounted with a needle in which liquid is discharged therethrough, and includes a holder in which the adapter is fixed. An O-ring having an outer diameter thereof larger than a width of a body of the adapter is coupled to the body of the adapter, a fixing hole into which the body of the adapter is inserted is formed in the holder, and an O-ring fixing portion having an inner diameter thereof larger than an inner diameter of the fixing hole is formed in the middle of the fixing hole such that the O-ring is positioned at the O-ring fixing portion. A vertical width of the O-ring fixing portion is larger than a vertical width of the O-ring, thereby allowing a height of the adapter that is fixed to the holder to be adjusted.
Abstract:
An electrostatic atomizing apparatus includes an air flow path, a humidifier, and electrode section, and a control unit. The air flow path has an air intake port and an air exhaust port. The humidifier includes a portion of the air flow path and humidifies air taken in through the air intake port. The electrode section includes a portion of the air flow path and produces charged particulate water by causing water in the air humidified by the humidifier to condense on an electrode and applying voltage to the electrode. A flow rate of the air in the air flow path is regulated in accordance with at least one of humidity and temperature of the air taken in through the air intake port.
Abstract:
Embodiments of the present disclosure provide for methods and systems for making structures using an electrospray system while under vacuum. In particular, embodiments of the present disclosure provide for methods and systems for ultra-fast growth of high aspect ratio nano/meso/micro-structures with three dimensional topological complexity and control of phase and composition of the structure formed.
Abstract:
A method of providing a suitable candidate liquid for an electrospray system is provided. At a first step an aperture radius for an aperture of the electrospray system (10) through which the liquid to be electrosprayed is drawn is obtained. Next, a corona threshold electric field curve as a function of relative permittivities of candidate liquids is calculated to determine the electric field at which undesirable corona discharge will occur. The maximum surface tension that can be electrosprayed by the system is calculated and then a candidate liquid which has a chosen relative permittivity and a surface tension that is equal to or less than the maximum surface tension is provided, to thereby provide a suitable candidate liquid with an appropriate surface tension to result in electrospray that meets the requirements of the electrospray system.
Abstract:
A method of stripping, prepping and coating a surface includes first stripping the exiting coating from a surface, using continuous or pulsed fluid jet, followed by prepping the surface by the same fluid jet. The method also provides entraining particles into a fluid stream, if desired to generate a particle-entrained fluid stream that is directed at the surface to be stripped and prepped. The particles act as abrasive particles for prepping the surface to a prescribed surface roughness required for subsequent application of a coating to the surface. The method then entails coating the surface by electrically charging particles having the same chemical composition as the particles used to prep the surface. Finally, a charged-particle-entrained fluid stream is directed at high speed at the charged surface to coat the surface. The particles form both mechanical and electronic bonds with the surface.