Powder coating apparatus
    151.
    发明授权
    Powder coating apparatus 失效
    粉末涂装设备

    公开(公告)号:US3913523A

    公开(公告)日:1975-10-21

    申请号:US45440674

    申请日:1974-03-25

    Abstract: An electrostatic powder spraying apparatus that includes a nonrotating disk-like member having an edge; the electrostatic field extends between the edge of disk and articles to be coated. A first means of the apparatus deflects powder radially outwardly into a chamber. The chamber is adjacent the first means and provides space in which tangential streams impart a spiral motion or whirling cyclone-type motion to the radially deflected powder. An apertured means is spaced from the non-rotating disk-like member. The spiral motion of entrained powder moves it outwardly along the surface of the non-rotating disk-like member and causes air to be aspirated through the aperture to mix with the powder moving radially outwardly along the surface of the disk-like member. By this means the powder is given sufficient momentum to be ejected from the edge of the disk to the vicinity of an article at a powder attracting potential where the electrostatic field forces can guide the charged powder to the article.

    Abstract translation: 一种静电粉末喷涂装置,包括具有边缘的非旋转盘状构件; 静电场在盘的边缘和待涂覆的物品之间延伸。 设备的第一装置将粉末径向向外偏转到室中。 腔室与第一装置相邻并且提供空间,在该空间中,切向流向径向偏转的粉末施加螺旋运动或旋转旋风分离器运动。 多孔装置与不旋转的盘状构件间隔开。 夹带的粉末的螺旋运动使其沿着非旋转盘状部件的表面向外移动,并使空气通过孔吸入,以便与沿盘状部件的表面径向向外移动的粉末混合。 通过这种方式,粉末被给予足够的动量从粉末的边缘排出到制品的附近,其中静电场力可以将带电粉末引导到制品上。

    Pneumatic powder flow diverting device
    152.
    发明授权
    Pneumatic powder flow diverting device 失效
    气动粉末流量分流装置

    公开(公告)号:US3901184A

    公开(公告)日:1975-08-26

    申请号:US49103174

    申请日:1974-07-23

    CPC classification number: B05B7/1468 B05B5/032 B05B5/1683

    Abstract: This invention is directed to a pneumatic flow switching device particularly adapted for the electrostatic coating of tubular workpieces, particularly can bodies, and includes a generally cylindrical chamber, a conduit for peripherally delivering a fluidized admixture of powder and air into the chamber, means for peripherally exhausting the powder-air admixture from the chamber, means adjacent the conduit for directing air tangentially into the chamber whereby the powder-air admixture is directed toward the exhausting means, and means for pneumatically traversing the powder-air admixture generally axially of the chamber for the delivery to an article intended to be treated thereby.

    Abstract translation: 本发明涉及一种气动切换装置,特别适用于管状工件,特别是罐体的静电涂覆,并且包括一个大致为圆柱形的腔室,用于将粉末和空气的流化混合物周边地输送到腔室中的导管,用于外围的装置 从腔室排出粉末 - 空气混合物,意味着邻近导管,用于将空气切向地引入室中,由此粉末 - 空气混合物被引导到排气装置,以及用于气动地横穿空气混合物的装置,其大致轴向地位于室 运送到拟由其处理的物品。

    Apparatus for application of powdered materials in electrostatic field
    153.
    发明授权
    Apparatus for application of powdered materials in electrostatic field 失效
    粉末材料在静电场中的应用设备

    公开(公告)号:US3895261A

    公开(公告)日:1975-07-15

    申请号:US47604674

    申请日:1974-06-03

    CPC classification number: B05B5/032

    Abstract: Disclosure is made of an apparatus for the application of powdered materials onto an article in an electrostatic field, said apparatus having an electrically insulating housing communicating with a bin, said housing having a rotary screw conveyor disposed inside it, said screw conveyor being made of a dielectric material; said screw conveyor and the housing make up a channel for the supply of a powdered material from the bin to a pulverizer electrode made in the form of two coaxial cylindrical sleeves, one of said cylindrical sleeves being rigidly secured at the outlet end of the housing and having on its inner surface acicular pins arranged radially and pointing with their sharp ends toward an article being coated, whereas the other sleeve is disposed at the outlet end of the screw conveyor and is also provided with acicular pins arranged along the perimeter of the end face of the cylindrical sleeve, parallel to the screw conveyor axis, the sharp ends of said acicular pins pointing toward the article being coated; both said cylindrical sleeves are under an equal electric potential.

    Abstract translation: 公开了一种用于在静电场中将粉末材料施加到物品上的装置,所述装置具有与箱连通的电绝缘壳体,所述壳体具有设置在其内的旋转螺旋传送器,所述螺旋输送机由 介电材料; 所述螺旋输送机和壳体构成用于将粉末材料从料箱供应到以两个同轴圆柱形套筒形式制成的粉碎机电极的通道,所述圆柱形套筒中的一个刚性地固定在壳体的出口端处, 在其内表面上具有径向布置的针状销,并且其尖端朝向被涂覆的制品指向,而另一个套筒设置在螺旋输送器的出口端处,并且还设置有沿着端面的周边布置的针状销 所述圆柱形套筒平行于所述螺旋输送机轴线,所述针状销的尖端指向被涂覆的制品; 两个所述圆柱形套筒都处于相等的电位。

    Methods for electrogasdynamic coating
    154.
    发明授权
    Methods for electrogasdynamic coating 失效
    电动涂层方法

    公开(公告)号:US3853580A

    公开(公告)日:1974-12-10

    申请号:US24513272

    申请日:1972-04-18

    Applicant: NAT STATE BANK

    Inventor: GOURDINE M

    CPC classification number: B05B5/08 B05B5/001 B05B5/032

    Abstract: Method for applying coating materials to articles, using electrogasdynamic apparatus providing a flow channel having a dielectric boundary which has a length/width ratio of greater than 2.5. Gas containing particulate coating material is ionized to create an electrical discharge field for imparting an electrical charge to the particles prior to passage through the dielectrically bounded flow path and thereby creating a high space charge potential. In special applications, a free-radical forming monomer gas or a fusible particle substance is carried in an inert gas into the electrical discharge field and through the flow channel toward the article to be coated. In any case, the charged particles are subjected to an axial charge repelling field (due to space charge effects) in the flow channel to raise the electrical potential of the particles, and thereby the potential gradient between the particles and the workpiece.

    Abstract translation: 使用提供具有长度/宽度比大于2.5的电介质边界的流动通道的电动气动力装置将涂覆材料施加到制品上的方法。 包含气体的颗粒状涂层材料被电离以产生放电场,用于在通过介电界限流动路径之前给颗粒施加电荷,从而产生高的空间电荷电势。 在特殊应用中,将自由基形成单体气体或易熔颗粒物质以惰性气体的形式携带到放电场中,并通过流动通道朝向被涂物品运送。 在任何情况下,带电粒子在流动通道中受到轴向电荷排斥场(由于空间电荷效应),以提高颗粒的电势,从而在颗粒和工件之间产生电位梯度。

    Electrostatic spray gun
    155.
    发明授权
    Electrostatic spray gun 失效
    静电喷枪

    公开(公告)号:US3819115A

    公开(公告)日:1974-06-25

    申请号:US34054973

    申请日:1973-03-12

    Applicant: ATLAS COPCO AB

    Inventor: SODERMAN C

    CPC classification number: B05B5/032

    Abstract: The powder spray gun comprises a handle, a barrel and a front member screwed to the barrel. The barrel and the front member form a duct through which paint powder is conveyed entrained in the air. An annular electrode and an elongated central body are clamped between the barrel and the front member and a lead for high voltage extends through an axial bore in the barrel and abuts axially against the annular electrode. The duct is annular and the electrode has an annular forward-directed edge that has a clearance to the walls of the duct and is located at a touch protecting distance from the mouth of the duct.

    Abstract translation: 粉末喷枪包括一个手柄,一个筒体和一个螺纹连接到筒体上的前部件。 桶和前部构件形成管道,通过该管道将涂料粉末输送夹带在空气中。 环形电极和细长的中心体被夹紧在镜筒和前部构件之间,并且用于高电压的引线延伸穿过镜筒中的轴向孔并且轴向抵靠环形电极。 管道是环形的,并且电极具有环形前向边缘,其具有与管道的壁的间隙,并且位于距离管道的口部的触摸保护距离处。

    Apparatus for coating with electrostatically charged particulate materials
    156.
    发明授权
    Apparatus for coating with electrostatically charged particulate materials 失效
    用静电填充颗粒材料涂装的装置

    公开(公告)号:US3740612A

    公开(公告)日:1973-06-19

    申请号:US3740612D

    申请日:1971-05-28

    Inventor: GAUTHIER W ROGERS D

    CPC classification number: B05B7/1472 B05B5/032 B05B5/1683

    Abstract: An improved control device for apparatus for coating articles with an electrostatically charged material in discrete form. The apparatus includes a nozzle having an inlet and a discharge outlet for the particulate material, an electrode for electrostatically charging the particulate material and at least one passage for directing a stream of vortex gas to impart a vortical motion to the particulate material discharged from the nozzle. A trigger on the apparatus operates first and second gas valves. The first valve controls a stream of gas to the vortex gas passages in the nozzle for controlling the pattern of the sprayed material and the second valve operates a pneumatic control to cause a high voltage to be applied to the electrode in the nozzle and to cause a pump to deliver to the nozzle inlet a stream of gas having the particulate material dispersed therein. In a preferred form, the trigger opens the first valve before the second valve and closes the second valve before the first valve. Provision is made for easily cleaning residual material from the pump, the nozzle and an interconnecting tube when changing the material to be sprayed.

    Abstract translation: 一种用于以离散形式用带静电材料涂覆制品的设备的改进的控制装置。 该装置包括具有用于颗粒材料的入口和排出口的喷嘴,用于静电充填颗粒材料的电极和用于引导涡流气流的至少一个通道,以向从喷嘴排出的颗粒材料施加旋涡运动 。 设备上的触发器操作第一和第二气阀。 第一阀控制喷嘴中的涡流气体通道的气流,用于控制喷射材料的图案,第二阀操作气动控制,以使高压施加到喷嘴中的电极,并引起 泵将其中分散有颗粒材料的气流输送到喷嘴入口。 在优选形式中,触发器在第二阀之前打开第一阀,并在第一阀之前关闭第二阀。 提供了在更换要喷涂的材料时从泵,喷嘴和互连管容易地清除残留物质。

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