公开(公告)号：US4073966A

公开(公告)日：1978-02-14

申请号：US751691

申请日：1976-12-17

申请人： Addison B. Scholes ,  David L. Dollar

发明人： Addison B. Scholes ,  David L. Dollar

IPC分类号： B05B5/14 ,  B67C3/26 ,  C10M177/00 ,  F16N27/00 ,  B05D1/06 ,  B05D5/08 ,  B05D7/14

CPC分类号： C10M177/00 ,  B05B5/001 ,  B05B5/14 ,  B67C3/2634 ,  F16N27/00

摘要： A new method for generating and substantially uniformly electrostatically dispersing very fine spheroidally shaped lubricating particles onto the moving surface of a metal or other electrically conductive substrate. A lubricant material in its liquid state is drawn by airflow through a small venturi orifice where it is sheared into droplets of various sizes. Larger droplets are filtered out of the continuing post-venturi airflow by gravity, baffles, airflow forces and/or inertia effects leaving only a mist cloud of extremely small spheroid particles which are then migrated within a charged plasma so as to transfer electrical charge thereto in sufficient quantities to achieve a desired uniform high charge/mass ratio and thus insure an eventually uniform electrostatic dispersion of substantially all the spheroids over the substrate surface. The mist cloud is controllably generated for a single narrow substrate or for each of a plurality of longitudinal sections of the substrate and permitted to drift or migrate relatively slowly between transversely positioned electrodes and the conducting substrate spaced therefrom in a respectively corresponding non-conducting enclosure. A corona discharge is maintained by a voltage differential between the electrodes and the substrate to form an electrically charged plasma within the non-conducting enclosure which, in turn, multiply bombards and charges the individual particles of the slowly migrating mist cloud. Thusly charged to uniform charged states, the particles are then uniformly dispersed substantially only by electrostatic forces onto the surface of the longitudinally moving substrate.

摘要翻译： 一种用于产生并基本均匀地将非常细小的球状润滑颗粒静电分散到金属或其它导电基底的移动表面上的新方法。 处于液态的润滑剂材料被气流引导通过小文丘里孔，在那里被剪切成各种尺寸的液滴。 较大的液滴通过重力，挡板，气流力和/或惯性效应从连续的文丘里气流中过滤掉，仅留下极小的球状颗粒的雾云，然后在带电等离子体内迁移，以便将电荷转移到其中 足够的量以实现期望的均匀的高充电/质量比，并且因此确保基本上所有球体在衬底表面上的最终均匀的静电分散。 对于单个窄基板或对于基板的多个纵向部分中的每一个可控制地产生雾云，并允许其在横向放置的电极之间相对缓慢地漂移或迁移，并且在相应的非导电外壳中与导电基板间隔开。 通过电极和基板之间的电压差来维持电晕放电，以在非导电外壳内形成带电荷的等离子体，这反过来又对缓慢迁移的雾云的各个颗粒进行多次轰击和充电。 因此，充电至均匀的带电状态，然后将颗粒基本上仅通过静电力均匀地分散到纵向移动的衬底的表面上。