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2. 发明申请

WO1989000460A1 IMPROVED PARTICLE SPRAY GUN 审中-公开
标题翻译：改进粒子喷枪
公开(公告)号：WO1989000460A1
公开(公告)日：1989-01-26
申请号：PCT/US1988001520
申请日：1988-05-10
申请人： NORDSON CORPORATION
发明人： NORDSON CORPORATION , SHARPLESS, John , KNOBBE, Allen, J. , WHITE, Kenneth, Allen , CRUM, Gerald, W.
IPC分类号： B05B05/02
CPC分类号： B05B5/0533
摘要： An electrostatic particle spray gun (10) having, in one preferred embodiment, a conical deflector (16) of insulative material mounted in the nozzle (14) in the particle path for forming a conical particle spray pattern. A resistive sheet (44) connected to a high voltage electrostatic supply is sandwiched between the forward (40) and rearward (42) ends of the deflector (16), leaving only the perimeter of the sheet exposed at the peripheral region of the conical deflector. The perimeter of the resistive sheet (44) functions as a multi-point circular electrode for charging the particles such that improved coating transfer efficiencies are achieved. Also, because of the resistive nature of the resistive sheet (44), the sheet constitutes a resistor in the electrical current path between the center of the sheet where it connects to a high voltage terminal and the circular periphery of the sheet which serves as the multiple point charging electrode, thereby minimizing unsafe electrical discharges should the electrode inadvertently approach a grounded object.
摘要翻译：在一个优选实施例中，静电颗粒喷枪（10）具有安装在用于形成锥形颗粒喷射图案的颗粒路径中的喷嘴（14）中的绝缘材料的锥形偏转器（16）。连接到高压静电电源的电阻片（44）夹在偏转器（16）的前（40）和后（42）端之间，仅留下在圆锥形偏转器的周边区域露出的片的周边。电阻片（44）的周边用作用于对颗粒充电的多点圆形电极，从而实现改进的涂层转移效率。此外，由于电阻片（44）的电阻性质，片材构成了电阻线圈，该电阻线路连接到高电压端子的片材的中心与用作片状物的片材的圆形周边之间的电流路径多点充电电极，从而如果电极不经意地接近接地物体，则最小化不安全的放电。

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