公开(公告)号：EP0107324A3

公开(公告)日：1985-08-07

申请号：EP83305381

申请日：1983-09-14

Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC

Inventor： Jackson, Alastair James ,  Grocott, Arend Lea

IPC: B05B05/02 ,  B05B09/06 ,  A01M07/00

CPC classification number: A01M7/0089 ,  B05B5/03 ,  B05B7/067 ,  B05B9/06 ,  F02B1/04

Abstract: An electrostatic atomising sprayhead assembly is mounted within the gas stream from an air blower, so that electrostatically formed droplets are entrained in the gas flow.

公开(公告)号：EP0102713A3

公开(公告)日：1985-06-19

申请号：EP83304045

申请日：1983-07-12

Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC

Inventor： Coffee, Ronald Alan ,  Noakes, Timothy James ,  Anstey, Robert Anthony

IPC: B05B05/02

CPC classification number: B05B5/002 ,  B05B5/16

Abstract: An electrostatic pump comprises a body having upstream and downstream chambers insulated from each other, and joined by constricted channel, adjacent the upstream mouth of which is the sharp conductive tip of an injection electrode. The channel around the conductive tip is shaped to promote laminar non-turbulent liquid flow past the tip, under the influence of a high potential difference between the injection electrode and a discharge electrode in the downstream chamber.

公开(公告)号：EP0092365A3

公开(公告)日：1984-05-23

申请号：EP83302048

申请日：1983-04-12

Applicant: NORDSON CORPORATION

Inventor： Milovich, Robert ,  McGhee, Edward C. ,  Hastings, Donald R.

IPC: B05B05/02 ,  B05B12/00 ,  B05B01/04

CPC classification number: B05B7/0815 ,  B05B5/03 ,  B05B7/067 ,  B05B12/12 ,  B05B12/124 ,  B05B12/126

Abstract: A spray coating system including a gun from which electrostatically charged liquid coating material, atomized with the aid of a first air stream and shaped in a desired fan pattern with a second air stream, is emitted to coat an object spaced therefrom. Separate signal-controlled valves are provided to independently control the liquid coating flow rate, atomization air stream flow rate, and fan-shaping air stream flow rate. Signalcontrolled electrostatic voltage regulating means are provided to control the magnitude of the electrostatic voltage used to electrostatically charge the liquid coating particles. An electronic controller having means for entering the identity of a particular article to be coated and a «look-up» table memory correlating part identity with the requisite voltage level and flow rates for the coating material, atomizing air stream, and fan-shaping air stream for various articles automatically controls the electrostratic voltage source and the various valves to provide the necessary voltage and flow rates previously empirically determined and stored in the controller memory.

公开(公告)号：EP0092419A3

公开(公告)日：1984-04-25

申请号：EP83302193

申请日：1983-04-19

Applicant: ELECTROPAINT LIMITED

Inventor： Saunders, Nigel Paul

IPC: B05B05/02 ,  B05B07/14

CPC classification number: B05B5/032

Abstract: Electrostatic or electrogasdynamic coating apparatus includes a coating gun, e.g. for use with dry powder, whose structure defines a through passage leading from an inlet tube (10) operatively connected to a source of particulate coating material to a discharge barrel (12). A central needle cathode electrode (15) is mounted in a constricted region of the passage, its tip being adjacent an annular porous metal anode electrode (25) whose central opening defines part of the passage. A flow of the material is induced along the passage by a first pressurized gas (e.g. air) stream fed from a first supply formation (24) to enter the passage in the region of the electrodes, in which region the particles receive an electric charge from the latter. At the same time a second pressurized gas steam, which is controlled independently of the first stream, is fed from a second supply formation (24) through the porous electrode itself to prevent build-up of particles on the acting portion thereof.

Abstract translation: 静电或电动力学涂覆设备包括涂覆枪，例如喷枪。 与干粉一起使用，其结构限定了从可操作地连接到颗粒涂料材料源的入口管（10）通向通向排放筒（12）的贯通通道。 中央针形阴极电极（15）安装在通道的收缩区域中，其尖端邻近环形多孔金属阳极电极（25），其中心开口限定通道的一部分。 通过从第一供给结构（24）供给的第一加压气体（例如空气）流沿着通道引导材料流，以进入电极区域中的通道，在该区域中，颗粒接收来自 后者。 同时，独立于第一气流控制的第二压缩气体蒸汽从第二供应结构（24）通过多孔电极本身供应，以防止颗粒在其作用部分上积聚。