Electrostatic deposition of charged coating particles onto a dielectric
substrate
    81.
    发明授权
    Electrostatic deposition of charged coating particles onto a dielectric substrate 失效
    带电涂层颗粒静电沉积到电介质基片上

    公开(公告)号:US5830274A

    公开(公告)日:1998-11-03

    申请号:US575188

    申请日:1995-12-20

    CPC classification number: B05B5/087 B05B5/043 B05B5/082 Y10S118/03

    Abstract: The present invention provides an apparatus for controlling the spray of positively-charged coating particles towards a grounded or negatively-charged dielectric material having a dielectric constant less than 4.0 and in the form of a hollow container. This apparatus includes: (a) a device for inducing a positive charge onto a coating composition, (b) a device for creating a field of positively-charged coating particles, (c) a device for supporting a series of hollow containers in spaced relation to one another which includes a series of vertically-oriented spindles, (d) a device for transporting the spindles in series through the field of positively-charged coating particles, (e) a gripping chuck made from, or coated with, a dielectric material, or both, mounted to the upper end of a spindle, the chuck having a recess defined therein for receiving the opening of a hollow container, and (f) a grounding device positioned such that, when the dielectric container is in the path of the sprayed, positively-charged coating particles the grounding device is also in the path but shielded therefrom by the dielectric material. The grounding device is insulated from direct electrical contact with the supported container. The grounding device can be replaced by an internal charging device for inducing a negative charge onto a hollow container being supported by the gripping chuck. Moreover, the grounding device or the internal charging device can be used in conjunction with an external charging device for inducing a negative charge onto a hollow container being supported by the gripping chuck.

    Abstract translation: 本发明提供了一种用于控制带正电荷的涂层颗粒朝着介电常数小于4.0的接地或带负电荷的电介质材料喷射并且以中空容器的形式的装置。 该装置包括:(a)用于在涂料组合物上引起正电荷的装置,(b)用于产生带正电的涂层颗粒的场的装置,(c)用于以间隔关系支撑一系列中空容器的装置 (d)用于通过带正电荷的涂层颗粒领域串联输送主轴的装置,(e)由介电材料制成或涂覆的夹紧卡盘 或两者安装到主轴的上端,卡盘具有限定在其中的凹部,用于容纳中空容器的开口,以及(f)接地装置,其定位成使得当电介质容器处于 喷涂的带正电荷的涂层颗粒,接地装置也在路径中,但是被电介质材料遮挡。 接地装置与受支撑的容器直接电接触绝缘。 接地装置可以由内部充电装置代替,用于在由卡盘支撑的中空容器上引起负电荷。 此外,接地装置或内部充电装置可以与外部充电装置一起使用,用于将负电荷引导到由夹紧卡盘支撑的中空容器上。

    Electrostatic deposition of charged coating particles onto a dielectric
substrate
    82.
    发明授权
    Electrostatic deposition of charged coating particles onto a dielectric substrate 失效
    带电涂层颗粒静电沉积到电介质基片上

    公开(公告)号:US5698269A

    公开(公告)日:1997-12-16

    申请号:US574758

    申请日:1995-12-20

    CPC classification number: B05B5/087

    Abstract: This invention provides a process for electrostatically applying a coating composition onto dielectric materials which have a dielectric constant less than 4.0. In this process, a positive charge is induced onto a coating composition. The dielectric material is electrically isolated, negatively charge, or both. The positively-charged coating composition is sprayed onto the dielectric material. If the dielectric material is charged negatively, the process of the present invention further includes the step of maintaining at least a portion of the negative charge on the dielectric material while positively-charged coating particles are being sprayed thereon.

    Abstract translation: 本发明提供了一种将涂料组合物静电涂覆在介电常数小于4.0的介电材料上的方法。 在该方法中,在涂料组合物上引起正电荷。 介电材料是电隔离的,带负电荷的,或两者都是。 将带正电的涂料组合物喷涂到电介质材料上。 如果介电材料带负电,本发明的方法还包括在正电荷的涂层颗粒被喷在其上的同时,在电介质材料上保持负电荷的至少一部分的步骤。

    Electrostatic spray apparatus including a spray hood having an electrode
    83.
    发明授权
    Electrostatic spray apparatus including a spray hood having an electrode 失效
    包括具有电极的喷雾罩的静电喷雾装置

    公开(公告)号:US5332162A

    公开(公告)日:1994-07-26

    申请号:US778132

    申请日:1992-01-31

    CPC classification number: B05B5/08 B05B5/087 Y10S118/07

    Abstract: An electrostatic spray apparatus, including a spray hood having an electrode. The hood defines a top region with a depending skirt and comprises first and second hood elements, either or both of which may comprise molded shells, with an electrode sandwiched therebetween. The electrode extends over the top region and down the skirt and terminates short of the lower regions of the skirt. The hood is constructed such that, other than at the lowermost regions of the skirt, the hood does not have any junction of its planar surfaces having a radius less than one hundred and fifty millimeters. The hood has an opening in its top region, through which an electrostatic spray head is placed into the hood. The electrode presents a connection for an electrical supply, and the potential applied to the spray head is substantially the same as that applied to the electrode.

    Abstract translation: PCT No.PCT / GB90 / 00877 Sec。 371日期:1992年1月31日 102(e)日期1992年1月31日PCT归档1990年6月6日PCT公布。 WO90 / 14894 PCT出版物 日期1990年12月13日。一种静电喷涂装置,包括具有电极的喷雾罩。 罩限定具有悬垂裙部的顶部区域,并且包括第一和第二罩元件,其中的一个或两者可以包括模制壳体,其间夹有电极。 电极在顶部区域上延伸并且在裙部下方延伸并且终止于裙部的下部区域。 罩被构造成使得除了裙部的最低区域之外,罩不具有其平面的任何接合部,其半径小于一百五十毫米。 罩在其顶部区域具有开口,通过该开口将静电喷头放置在罩中。 电极提供用于电源的连接,并且施加到喷头的电位基本上与施加到电极上的电位相同。

    Method and apparatus for electrostatically spray painting objects in a
spray paint booth
    84.
    发明授权
    Method and apparatus for electrostatically spray painting objects in a spray paint booth 失效
    在喷漆室静电喷涂物体的方法和装置

    公开(公告)号:US5169673A

    公开(公告)日:1992-12-08

    申请号:US652558

    申请日:1991-02-07

    CPC classification number: B05B5/087 B05B15/1244

    Abstract: A spray painting booth for electrostatically painting objects includes encapsulated electrically charged panels which are adapted to repel electrically charged paint particles that are produced by an electrostatic spray painting device. The electrostatic spray painting device is charged to a potential of 60,000 to 135,000 volts DC negative with respect to ground so that the resulting spray of paint particles is negatively charged. An object or article to be painted is disposed in the booth by a conveyor mechanism and is maintained at ground potential. The encapsulated, electrically charged panels or walls of the booth are charged to a potential of 30,000 volts DC negative with respect to ground by a power supply such that the panels are charged to a potential between the negative DC potential with respect to ground to which the spray paint device is charged and the ground potential of the article to be painted. The resulting electrostatic field emanating from the panels repels paint particles that do not adhere to the article and thereby reduces the amount of paint that would otherwise accumulate on surfaces of the spray paint booth near the article being painted.

    Abstract translation: 用于静电喷涂物体的喷涂室包括封装的带电面板,其适于排斥由静电喷涂装置产生的带电荷的涂料颗粒。 静电喷涂装置相对于地面被充电至电压为60000至135000伏特的电压,使得所得到的涂料颗粒喷雾带负电。 待涂漆的物体或物品通过传送机构设置在展位中并保持在地电位。 相对于地面,通过电源将封装的,充电的面板或墙壁充电到相对于地面的30000V DC的电位,使得面板被充电到相对于地面的负DC电位之间的电位, 喷涂装置被充电并且被涂物品的地电位。 从面板产生的所产生的静电场排斥不粘附到制品上的涂料颗粒,从而减少否则将在喷涂物品附近的喷漆室的表面积聚的涂料量。

    Electrostatic powder coating device
    85.
    发明授权
    Electrostatic powder coating device 失效
    静电粉末涂装装置

    公开(公告)号:US4901666A

    公开(公告)日:1990-02-20

    申请号:US288030

    申请日:1988-12-21

    Abstract: A cover for forming a space for coating is provided above an electroconductive belt conveyor for adjusting an electric field at an end portion of a flat plate-like object to be coated, electrostatic powder coating guns pointed at the object to be coated on the belt conveyor in the space for coating are provided, and means for introducing air into the space for coating and means for exhausting the air are respectively provided. As a result, the strength of the electric field formed from the electrostatic powder coating guns to the electroconductive belt conveyor and the object to be coated is made uniform through their entire surface so that the thickness of a powder layer to be adhered to the object to be coated is made uniform from its central portion to an end portion. Consequently, the waste of the powder coating material is prevented, and local cracks in a portion having a great thickness generated when the coated object is bent are prevented.

    Abstract translation: 用于形成用于涂覆的空间的盖设置在用于调节待涂布的平板状物体的端部处的电场的导电带式输送机上方,指向待涂覆物体的静电粉末喷涂枪 提供了用于涂覆的空间,并且分别设置有用于将空气引入用于涂覆的空间和用于排出空气的装置的装置。 结果,由静电粉末喷涂枪到导电带式输送机和被涂物体形成的电场的强度通过其整个表面均匀,使得要粘附到物体上的粉末层的厚度 被涂布从其中心部分到端部部分均匀。 因此,防止了粉末涂料的浪费,并且防止了当涂覆物体弯曲时产生的厚度大的部分中的局部裂纹。

    Apparatus for electrostatically spray coating workpieces with air
ionizing neutralizing device
    86.
    发明授权
    Apparatus for electrostatically spray coating workpieces with air ionizing neutralizing device 失效
    用空气电离中和装置静电喷涂工件的装置

    公开(公告)号:US4836137A

    公开(公告)日:1989-06-06

    申请号:US95319

    申请日:1987-09-10

    Abstract: Apparatus for spray coating plate-like or otherwise configurated workpieces has an endless apertured conveyor which transports a series of workpieces along a horizontal path beneath a rotary atomizer which sprays coating material onto the advancing workpieces. The coating material which bypasses the workpices and passes through the apertures of the conveyor impinges upon and gathers on a web of paper or non-woven fibrous material which is advanced at a speed less than the speed of the conveyor so that the web can be used with great economy because it is or can be advanced at a rate such that, or only when, its portion which is in the path of sprayed coating material cannot gather and retain additional coating material.

    Abstract translation: 用于喷涂板状或其它构造的工件的设备具有环形有孔输送机,其沿着将喷涂材料喷射到前进工件上的旋转雾化器下方的水平路径输送一系列工件。 绕过工件并穿过输送机的孔的涂层材料撞击并聚集在纸或非织造纤维材料的网上,该纸幅或非织造纤维材料以小于输送机速度的速度前进,使得可以使用幅材 具有经济性,因为它可以或者可以以这样的速度进行,即只有当其在喷涂涂层材料的路径中的部分不能聚集并保留另外的涂层材料时。

    Apparatus and process for producing powders and other granular materials
    87.
    发明授权
    Apparatus and process for producing powders and other granular materials 失效
    用于生产粉末和其他颗粒材料的设备和方法

    公开(公告)号:US4788016A

    公开(公告)日:1988-11-29

    申请号:US62653

    申请日:1987-06-16

    CPC classification number: B05B5/002 B01J2/04 B05B5/0255 B05B5/087

    Abstract: Electrostatic spraying apparatus and process for spraying liquids which form a coalescent resistant surface in flight in a particular environment to produce a powder or granular material. The process involves delivering a liquid to a spraying site of an electrostatic spray head; making contact with the liquid via an electrically conducting or semiconducting liquid contacting surface; charging the liquid contacting surface to a high voltage of one polarity relative to a reference surface to intensify the electric field strength at the spraying site sufficiently that the liquid at the spraying site is drawn out preponderantly by electrostatic forces into at least one cone from which a corresponding ligament issues and breaks up into a spray of electrostatically charged droplets; providing the environment in a space sufficient that droplets from the spray head form, in flight, particles having a substantially coalescent resistant surface; and collecting the particles so formed.

    Abstract translation: 静电喷涂装置和喷雾液体的方法,其在特定环境中在飞行中形成聚结剂表面以产生粉末或颗粒材料。 该方法包括将液体输送到静电喷头的喷涂部位; 通过导电或半导体液体接触表面与液体接触; 将液体接触表面充电到相对于参考表面的一个极性的高电压,以增强喷涂位置处的电场强度,足以使喷雾位置处的液体被静电力主要地抽出到至少一个锥体中, 相应的韧带问题并分解成静电带电液滴喷雾; 在足够的空间中提供环境,使得来自喷雾头的液滴在飞行中形成具有基本上聚结的表面的颗粒; 并收集如此形成的颗粒。

    Electrostatic system analyzer
    88.
    发明授权
    Electrostatic system analyzer 失效
    静电系统分析仪

    公开(公告)号:US4433296A

    公开(公告)日:1984-02-21

    申请号:US285740

    申请日:1981-07-22

    Inventor: James A. Kolibas

    CPC classification number: B05B5/087 G01R19/145 G01R29/24

    Abstract: An electrostatic system analyzer for checking the voltage at various test points in a high voltage electrostatic spray coating system. The analyzer is in the form of a gun having a telescoping cylindrical barrel with an exposed electrode at its forward end, and a meter at its rearward end, and having a downwardly extending conductive handle. The forward portion of the analyzer body, which is axially and angularly movable relative to the rearward portion, includes a conductive receptacle electrically connected to the electrode, and the rearward, portion of the analyzer body includes four axial bores equidistant from a central axis and equiangularly arrayed thereabout. Each bore contains a resistor, and the resistors are electrically connected in series, with three of the resistors each having an individual plug extending toward the forward analyzer body portion and being receivable for electrical contact within the receptacle when the two portions are telescoped together. The particular resistor coupled to the electrode through the receptacle and its associated plug is determined so as to introduce sufficient resistance from the series of resistors to compensate for resistance variations at different test points in the electrostatic system.

    Abstract translation: 一种用于检查高压静电喷涂系统中各种测试点电压的静电系统分析仪。 分析仪是具有伸缩圆柱形筒的枪的形式,其前端具有暴露的电极,在其后端具有电表,并且具有向下延伸的导电手柄。 分析器本体的相对于后部轴向和可角度地移动的前部包括电连接到电极的导电插座,分析器本体的后部包括与中心轴等距的四个轴向孔 在那里排列 每个孔包含电阻器,并且电阻器串联电连接,其中三个电阻器各自具有朝向正向分析器本体部分延伸的单独插头,并且当两个部分被伸缩在一起时可接收用于在插座内的电接触。 确定通过插座及其相关插头耦合到电极的特定电阻器,以从该系列电阻器引入足够的电阻来补偿静电系统中不同测试点处的电阻变化。

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