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公开(公告)号：US5288029A
公开(公告)日：1994-02-22
申请号：US785262
申请日：1991-10-30
申请人： Ichirou Ishibashi , Toshio Kubota , Niichi Toyama , Shoko Sasaki , Yukihito Ono , Akihiko Tada
发明人： Ichirou Ishibashi , Toshio Kubota , Niichi Toyama , Shoko Sasaki , Yukihito Ono , Akihiko Tada
CPC分类号： B05B5/1675 , B05B5/1625 , B05B12/14
摘要： An apparatus for electrostatically spray-coating a workpiece with conductive paint which includes a color changeover valve mechanism for selectively supplying conductive paint, cleaning liquid and air. A flush valve mechanism is provided for selectively supplying the cleaning liquid and the air. A first directional control valve includes an outlet and inlets. The inlets are connected to feed lines extending from the color changeover valve mechanism and the flush valve mechanism, respectively. A block line is made of an insulating material and has a first end connected to the outlet of the first directional control valve. The block line includes a second end in communication with the first end. A second directional control valve is provided having outlets and an inlet. The inlet is connected to the second end of the block line. An intermediate reservoir is connected via a feed line to one of outlets of the second directional control valve. A waste-liquid tank is connected via a first discharge line to a second outlet of the second directional control valve. A spray gun is connected via a delivery line to the intermediate reservoir. A second discharge line is branched from the delivery line via a changeover valve. A discharge line cleaning mechanism is provided for selectively supplying at least cleaning liquid and air to the second discharge line. A high voltage is applied to the conductive paint between the second directional control valve and the spray gun.
摘要翻译： 一种用导电涂料对工件进行静电喷涂的装置，其包括用于选择性地供应导电涂料，清洁液体和空气的颜色转换阀机构。 提供了一种冲洗阀机构，用于选择性地供应清洗液和空气。 第一方向控制阀包括出口和入口。 入口分别连接到从颜色切换阀机构和冲洗阀机构延伸的供给管线。 块线由绝缘材料制成，并且具有连接到第一方向控制阀的出口的第一端。 块线包括与第一端连通的第二端。 提供具有出口和入口的第二方向控制阀。 入口连接到块线的第二端。 中间储存器经由进料管线连接到第二方向控制阀的出口之一。 废液槽经由第一排出管线连接到第二方向控制阀的第二出口。 喷枪通过输送管线连接到中间储存器。 第二排出管线通过切换阀从输送管线分支。 提供排出线清洁机构，用于至少选择性地向第二排出管线提供清洗液和空气。 向第二方向控制阀和喷枪之间的导电涂料施加高电压。
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公开(公告)号：US4811689A
公开(公告)日：1989-03-14
申请号：US862036
申请日：1986-05-12
CPC分类号： B05B5/087 , B05B5/0533 , B05D1/007 , B05D1/06 , B05B5/084
摘要： An electrostatical powder coating method and apparatus therefor, in which an auxiliary electrode is disposed in the vicinity of a desired coating surface of an object to be coated, a gun for performing electrostatically powder coating is directed to the object to be coated and the auxiliary electrode, a DC electric field is formed between the gun, the auxiliary electrode and the object to be coated, the auxiliary electrode is electrically charged to the same polarity as the gun so as to form an auxiliary electric field between the auxiliary electrode and the desired coating surface of the object to be coated whereby a powder coating material is transferred to be applied onto the desired coating surface by the electric field.
摘要翻译： 一种静电粉末涂布方法及其设备，其中辅助电极设置在待涂覆物体的所需涂层表面附近，用于进行静电粉末涂覆的喷枪被引导到被涂物体和辅助电极 在喷枪，辅助电极和被涂物体之间形成直流电场，辅助电极与喷枪的极性相同，从而在辅助电极与所需涂层之间形成辅助电场 要涂覆的物体的表面，由此通过电场将粉末涂料转移到所需的涂层表面上。
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公开(公告)号：US4805069A
公开(公告)日：1989-02-14
申请号：US022765
申请日：1987-03-06
CPC分类号： B05B5/032
摘要： A powder charging apparatus, in which a plasma electrode pair is disposed within an insulative tubular passage for transporting powder as carried by gas, a device for intermittently applying a D.C. voltage between that pair of plasma electrode is provided to form a space where mainly desired polarity ions drawn from the plasma electrode pair exist and another space where mainly opposite polarity ions exist, well dispersed powder is fed to the former space where mainly the desired polarity ions exist, and thereby stable and strong charging performances can be assured for a long term without adhesion and accumulation of the powder to and on either one of the pair of plasma electrodes; and an electrostatic powder painting apparatus containing this powder charging apparatus therein and having excellent penetrating performance and painting efficiency.
摘要翻译： 一种粉末充电装置，其中等离子体电极对设置在用于运送由气体携带的粉末的绝缘管状通道内，在该对等离子体电极之间间歇施加DC电压的装置被提供以形成主要期望极性的空间 从等离子体电极对得到的离子存在，另外存在主要相反的极性离子的空间，将良好分散的粉末供给到主要所需的极性离子存在的前一个空间，从而长期稳定而强的充电性能没有 粉末粘附并积聚在一对等离子体电极之间和之上; 以及其中含有该粉末填充装置并且具有优异的穿透性能和喷涂效率的静电粉末喷涂装置。
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4.发明授权Electrostatic device for powder spraying with triboelectric powder charging 失效用于粉末喷涂的静电装置，具有摩擦电粉末充电
公开(公告)号：US4798340A
公开(公告)日：1989-01-17
申请号：US112840
申请日：1987-09-11
申请人： Gerhard F. Vohringer , Kurt Pfeifer
发明人： Gerhard F. Vohringer , Kurt Pfeifer
CPC分类号： B05B5/047
摘要： A stream of carrier gas with powder particles is introduced at the feedingnd (2) of a powder pipe (1) in the direction of arrow (3) for coating workpieces. The material of the coating powder, of the powder pipe (1) and of displacement bodies (21, 22) built in the latter have different dielectric constants. At a certain distance from the outlet end (5) is mounted a charging device (12) provided with boosting electrodes (15) projecting inwardly and connected through a protective resistance (15) to a high-voltage supply (17). A rear counter-electrode (7, 26, 27) comprises an earthed conductive body (7). The displacement bodies (21, 22) accelerate the flow of powder particles. The latter come repeatedly in contact with the inner surface (11) of the powder pipe (1) and the displacement bodies (21, 22) communicating negatively charged particles (10) to them, after charge separation, whereas the positively charged particles (4) remain attached to the powder particles. The concentration of negatively (10) and positively (4) charged particles at opposite ends (2, 5) of the pipe is increased through the electrostatic field acting between the boosting electrodes (13) and the counter-electrode (7, 26, 27). The coating powder is thus so highly charged that an outer electrostatic field between a spraying electrode and the workpiece can be dispensed with.
摘要翻译： PCT No.PCT / DE87 / 00004 Sec。 371日期1987年9月11日 102（e）1987年9月11日PCT PCT 1987年1月9日PCT公布。 第WO87 / 04088号公报 日期1987年7月16日。在粉末管（1）的进料端（2）沿箭头（3）的方向引入具有粉末颗粒的载气流，用于涂覆工件。 粉末管（1）的涂层粉末和其中内置的位移体（21,22）的材料具有不同的介电常数。 在与出口端（5）一定距离处安装有充电装置（12），该充电装置（12）具有向内突出并通过保护电阻（15）连接到高压电源（17）的升压电极（15）。 后对置电极（7,26,27）包括接地的导电体（7）。 位移体（21,22）加速粉末颗粒的流动。 后者在电荷分离后与粉末管（1）的内表面（11）和位移体（21,22）反复接触，使带负电的粒子（10）与它们相通，而带正电的粒子 ）保持附着在粉末颗粒上。 通过作用在升压电极（13）和对电极（7,26,27）之间的静电场，管道的相对端（2,5）处的负（10）和正（4）带电粒子的浓度增加 ）。 因此涂层粉末具有如此高的充电，可以省去喷涂电极和工件之间的外部静电场。
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公开(公告)号：US4792092A
公开(公告)日：1988-12-20
申请号：US122312
申请日：1987-11-18
CPC分类号： B05B5/1633 , B05B12/14
摘要： A paint color change system and method for sequentially supplying different color electrically conductive paints to an electrostatic applicator. Paint is supplied through a supply hose to a first isolated reservoir and the supply hose is purged and dried to form a voltage block. While paint is supplied through a first delivery hose from the first reservoir to an applicator, a second reservoir is cleaned, paint is supplied to the second reservoir through a supply hose, and the supply hose is purged of paint and dried to form a voltage block. Upon completion of coating with the first color paint, the first delivery hose is purged of paint and dried to form a voltage block and paint then is supplied from the second reservoir through a second delivery hose to the coating applicator. If the same color paint is applied from both reservoirs, the first delivery hose can be cleaned and dried after paint delivery from the second reservoir has started to permit continuous coating.
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公开(公告)号：US4769101A
公开(公告)日：1988-09-06
申请号：US46119
申请日：1987-05-05
CPC分类号： H01J37/32055 , H01J37/32623 , H01J37/3266
摘要： An apparatus for surface treatment, especially for etching and/or coating workpieces by ion bombardment is described. This apparatus comprises at least one ionization chamber having at least one hot cathode, gas atoms being introduced into this chamber for the low-voltage arc-discharge between the ionization chamber and at least one anode inside the treatment chamber connected to a vacuum pump. At least one magnet coil mounted within the treatment chamber is used to control the ion density of the low-voltage arc-discharge and is mounted inside the treament chamber. The workpieces to be treated are arranged outside these magnet coils. Homogeneous surface treatment of the workpieces is ensured by the selected arrangement of magnet coils and workpieces.
摘要翻译： 描述了用于表面处理的设备，特别是用于通过离子轰击蚀刻和/或涂覆工件。 该装置包括至少一个具有至少一个热阴极的电离室，气体原子被引入到该室中用于电离室与连接到真空泵的处理室内的至少一个阳极之间的低压电弧放电。 安装在处理室内的至少一个磁体线圈用于控制低压电弧放电的离子密度并安装在处理室内。 要处理的工件布置在这些磁体线圈的外面。 通过所选择的磁体线圈和工件的布置来确保工件的均匀表面处理。
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公开(公告)号：US4735364A
公开(公告)日：1988-04-05
申请号：US902082
申请日：1986-08-27
申请人： John A. Marchant
发明人： John A. Marchant
CPC分类号： B05B5/043
摘要： A spray head for a spray nozzle including a hood providing a surface extending forward from the nozzle and also supporting insulating mountings for electrodes energizable to exert an inductive charging field or spray from the nozzle. The surface is earthed or earthy in operation to encourage collection of stray or return spray and stop stray or return spray affecting the charging field by landing on the electrodes or their mountings. The collected spray may be retained as liquid or caused to flow to projections to again leave the spray head as small droplets. The field from the electrodes may shape the spray.
摘要翻译： 一种用于喷嘴的喷头，其包括提供从喷嘴向前延伸的表面的罩，并且还支撑用于可激发以从喷嘴施加感应充电场或喷雾的电极的绝缘安装件。 表面接地或泥土运行，以鼓励收集杂散或返回喷雾，并通过着陆在电极或其安装件上，停止影响充电场的杂散或返回喷雾。 收集的喷雾可以保持为液体或者使其流到突出部，以使喷雾头再次以小液滴离开。 来自电极的场可以形成喷雾。
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公开(公告)号：US4729513A
公开(公告)日：1988-03-08
申请号：US918542
申请日：1986-10-10
CPC分类号： B05B5/032
摘要： A lance extension venturi sleeve is disposed preferably within the rear one-third of the lance extension of a powder spray gun. The sleeve increases the velocity of the powder stream and provides an abrupt opening to the larger lance extension tube. The velocity increase and the turbulence so created increase the homogeneity of the powder in the stream and produce a more uniform powder spray pattern or powder "cloud" for even powder coating of articles to be coated.
摘要翻译： 喷枪延伸文丘里套管优选地设置在粉末喷枪的喷枪延伸部的后部三分之一内。 套管增加了粉末流的速度，并向较大的喷枪延伸管提供了突然的开口。 速度增加和如此产生的湍流增加了流中粉末的均匀性，并产生更均匀的粉末喷涂图案或粉末“云”，用于均匀涂覆待涂层的物品。
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公开(公告)号：US4691865A
公开(公告)日：1987-09-08
申请号：US821801
申请日：1986-01-23
申请人： Reinhold Hoffman , Walter Klimke
发明人： Reinhold Hoffman , Walter Klimke
IPC分类号： F25D3/10 , B01D51/10 , B05B5/03 , B05B5/16 , B05B7/04 , B05B7/14 , F25D3/12 , B05B1/34 , B05B5/02
CPC分类号： B05B5/032 , B01D51/10 , B05B5/001 , B05B5/1683
摘要： The process described herein comprises the mixing of a chilled gas into a stream of gas-suspended particles. Preferably the chilled gas is the same as the gas in which the particles are suspended and the particles are electrostatically charged. A novel device is described which provides a chamber extending lengthwise of the device into which channels feed the chilled gas into the particle suspension. The chilled gas is introduced from an external cooling system with the gas being advantageously cooled during passage through a coil whose outer walls are cooled by liquid nitrogen or dry ice. This process and device are of particular utility in a system for the spraying of electrostatically charged particles.
摘要翻译： 本文所述的方法包括将冷却的气体混合到气体悬浮颗粒物流中。 优选地，冷却气体与悬浮颗粒的气体相同，并且颗粒被静电充电。 描述了一种新颖的装置，其提供沿装置的纵向方向延伸的室，通道将冷冻气体进料送入颗粒悬浮液。 冷却气体从外部冷却系统引入，气体在通过其外壁被液氮或干冰冷却的线圈期间被有利地冷却。 该方法和装置在用于喷涂静电带电粒子的系统中特别有用。
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公开(公告)号：US4671805A
公开(公告)日：1987-06-09
申请号：US580477
申请日：1984-02-15
申请人： Meredith C. Gourdine
发明人： Meredith C. Gourdine
摘要： Atmospheric occurrences that decrease visibility, particularly fog, smoke, smog and the like, are cleared at sites such as airports by an array of EGD spray units emitting submicron size charged water droplets to attach to airborne particulates and electrostatically precipitate those to ground. Independent variables of the array and the EGD jets from the spray units are controlled to control the dependent variables characterizing the space-charge cloud thus developed. The methods and apparatus control the height to which clearing of the airborne particulates occurs to improve visibility and the time required for such clearing. Specific compact spray units are self-contained, can be radio operated, and are movable. Placement of the units for removal of radiation and advection fog with respect to airport runways include a square array of the spray units proximate the runway for radiation fog control and upwind location of arrays for advection fog precipitation. Specific characteristics of small, medium and large spray units suitable for use in the arrays are set forth.
摘要翻译： 通过排放亚微米尺寸带电水滴的EGD喷雾装置阵列，在诸如机场的场所清除可见度，特别是雾，烟雾，烟雾等的大气事件，以附着于空气中的颗粒物并静电将其沉淀到地面。 控制阵列的独立变量和来自喷雾单元的EGD射流，以控制表征由此形成的空间电荷云的因变量。 方法和装置控制发生空气中颗粒物清除的高度，以提高可见度和清除所需的时间。 特定的紧凑型喷雾装置是独立的，可以无线电操作，并且是可移动的。 相对于机场跑道，放置用于消除辐射和平流雾的装置包括靠近跑道的喷雾装置的正方形阵列，用于辐射雾控制和用于平流雾降水的阵列的逆风位置。 阐述了适用于阵列的小型，中型和大型喷雾装置的具体特性。
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