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1.发明公开Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas 失效用于喷射超临界流体或涂布液是含有液化气体的方法和装置。
公开(公告)号：EP0421796A2
公开(公告)日：1991-04-10
申请号：EP90310894.2
申请日：1990-10-04
申请人： NORDSON CORPORATION
摘要： A method and apparatus for spraying liquid coating material containing supercritical fluid or liquified gas as a diluent comprises a spray gun having internal passages which transmit the liquid coating material under high pressure from an inlet (64) to a nozzle (50) at the tip of the gun (14) and then to an outlet (66) so that the liquid coating material can be continuously recirculated. A relatively short flow discharge path is formed between the internal passages in the spray gun (14) and the nozzle (50) to avoid the formation of an area of ambient or reduced pressure so that the supercritical fluid of liquified gas is substantially maintained in solution in the liquified coating until it is discharged from the gun (14). A pressure regulator (128) is provided to maintain a substantially constant pressure drop across the inlet (64) and outlet (66) of the gun (14) to induce flow of liquid coating material through the gun (14), and to permit several guns (14) to be connected in series without creating a substantial pressure drop therebetween.
摘要翻译： 一种用于喷涂液体涂层材料含有超临界流体或液化气体作为稀释剂包括具有尖端哪个发射下从喷嘴高压到入口（64）的液体涂层材料的内部通道至（50）中的喷枪的方法和装置 喷枪（14），然后在出口（66）象液体涂层材料可以被连续地再循环。 相对较短的流放电路径在喷枪（14）和所述喷嘴（50）的内部通道之间形成，以避免环境或减压下的区域的形成，所以没有液化的气体的超临界流体基本上保持在溶液 在液化的包裹直到它从喷枪14喷出。 的压力调节器（128）被提供给维持横跨枪（14）通过喷枪（14），以诱导液体涂层材料的流动的入口（64）和出口（66）的大致恒定的压降，并允许几个 枪（14）被串联连接，而不之间产生相当大的压力降在那里。
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公开(公告)号：EP0089817B1
公开(公告)日：1989-03-15
申请号：EP83301498.8
申请日：1983-03-17
申请人： NORDSON CORPORATION
发明人： Hastings, Donald R.
CPC分类号： B05B5/03 , B05B7/067 , B05B7/0815 , B05B15/65
摘要： An air atomizing nozzle assembly for electrostatic spray guns is disclosed. The nozzle assembly is made of plastic parts and includes an air cap having a central bore which surrounds a fluid nozzle tip. The nozzle has a nut formed on its forward end to facilitate threading of the rearward end of the nozzle tip into a threaded bore of the gun body. Formed on the front part of the nozzle, either as a part of the nut or a cylindrical surface adjacent the nut, is an accurately machined surface engageable in press fit relationship with a mating accurately machined bore of the air cap. These mating press fit surfaces center the bore of the air cap relative to the nozzle tip so as to leave an annular, evenly dimensioned air flow passage surrounding the nozzle tip and defined between the nozzle tip and the bore of the air cap. The air cap is retained in a one-piece resilient retaining ring by snapping the air cap into an annular lip of the retaining ring. The retaining ring is then threaded onto the gun body to secure the nozzle assembly onto the gun body.
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公开(公告)号：EP0044676B1
公开(公告)日：1985-01-30
申请号：EP81303164.8
申请日：1981-07-10
申请人： NORDSON CORPORATION
IPC分类号： B05B5/02
CPC分类号： B05B5/035
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4.发明公开Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas 失效用于喷涂含超临界流体或液化气体的液体涂料的方法和装置
公开(公告)号：EP0421796A3
公开(公告)日：1991-11-27
申请号：EP90310894.2
申请日：1990-10-04
申请人： NORDSON CORPORATION
摘要： A method and apparatus for spraying liquid coating material containing supercritical fluid or liquified gas as a diluent comprises a spray gun having internal passages which transmit the liquid coating material under high pressure from an inlet (64) to a nozzle (50) at the tip of the gun (14) and then to an outlet (66) so that the liquid coating material can be continuously recirculated. A relatively short flow discharge path is formed between the internal passages in the spray gun (14) and the nozzle (50) to avoid the formation of an area of ambient or reduced pressure so that the supercritical fluid of liquified gas is substantially maintained in solution in the liquified coating until it is discharged from the gun (14). A pressure regulator (128) is provided to maintain a substantially constant pressure drop across the inlet (64) and outlet (66) of the gun (14) to induce flow of liquid coating material through the gun (14), and to permit several guns (14) to be connected in series without creating a substantial pressure drop therebetween.
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公开(公告)号：EP0160386B1
公开(公告)日：1988-12-07
申请号：EP85302063.4
申请日：1985-03-25
申请人： NORDSON CORPORATION
CPC分类号： B05B5/001 , B05B5/0407 , B05B5/053 , B05B5/0536 , H01B7/0054 , Y10T428/2918 , Y10T428/2933 , Y10T428/2964
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公开(公告)号：EP0089817A2
公开(公告)日：1983-09-28
申请号：EP83301498.8
申请日：1983-03-17
申请人： NORDSON CORPORATION
发明人： Hastings, Donald R.
CPC分类号： B05B5/03 , B05B7/067 , B05B7/0815 , B05B15/65
摘要： An air atomising nozzle assembly for electrostatic spray guns is disclosed. The nozzle assembly is made of plastic parts and includes an air cap having a central bore which surrounds a fluid nozzle tip. The nozzle has a nut formed on its forward end to facilitate threading of the rearward end of the nozzle tip into a threaded bore of the gun body. Formed on the front part of the nozzle, either as a part of the nut or a cylindrical surface adjacent the nut, is an accurately machined surface engageable in press fit relationship with a mating accurately machined bore of the air cap. These mating press fit surfaces centre the bore of the air cap relative to the nozzle tip so as to leave an annular, evenly dimensioned air flow passage surrounding the nozzle tip and defined between the nozzle tip and the bore of the air cap. The air cap is retained in a one-piece resilient retaining ring by snapping the air cap into an annular lip of the retaining ring. The retaining ring is then threaded onto the gun body to secure the nozzle assembly onto the gun body.
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7.发明公开Nozzle assembly for an electrostatic spray coating apparatus 无效Stritzdüsefüreine elektrostatische Beschichtungsanlage。
公开(公告)号：EP0050531A2
公开(公告)日：1982-04-28
申请号：EP81304983.0
申请日：1981-10-22
申请人： NORDSON CORPORATION
发明人： Hastings, Donald R.
IPC分类号： B05B5/02
摘要： A nozzle assembly for spray coating apparatus such as an electrostatic spray gun includes an air cap (50) having a central bore (52) which engages a nozzle member (26). The bore has a plurality of uniformly dimensioned axially aligned gas flow passages (62) evenly spaced about its circumference and a plurality of radially inwardly extending ribs (64) therebetween.
In order to obtain uniform atomization of coating material and prevent the spray pattern to be badly distorted the side of a bore engages the outside surface of the nozzle member to positively align its centre axis on the axis of the central bore. The air cap and nozzle member thus cooperate to form a plurality of uniform gas flow passages around the nozzle (38) thereby producing a fineiy atomized uniform spray pattern of coating material emitted from the nozzle member.摘要翻译： 用于诸如静电喷枪的喷涂设备的喷嘴组件包括具有与喷嘴构件（26）接合的中心孔（52）的空气帽（50）。 孔具有多个均匀尺寸的轴向排列的气体流动通道（62），其平均间隔围绕其圆周和多个在其间的径向向内延伸的肋（64）。 为了获得涂层材料的均匀雾化并防止喷射图案严重变形，孔的一侧与喷嘴构件的外表面接合，以使其中心轴线在中心孔的轴线上正确对准。 因此，空气帽和喷嘴构件协作以在喷嘴（38）周围形成多个均匀的气体流动通道，从而产生从喷嘴构件发射的涂覆材料的细微雾化的均匀喷射图案。
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公开(公告)号：EP0050531B1
公开(公告)日：1985-06-19
申请号：EP81304983.0
申请日：1981-10-22
申请人： NORDSON CORPORATION
发明人： Hastings, Donald R.
IPC分类号： B05B5/02
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公开(公告)号：EP0092392A2
公开(公告)日：1983-10-26
申请号：EP83302126.4
申请日：1983-04-14
申请人： NORDSON CORPORATION
发明人： Hastings, Donald R.
CPC分类号： B05B7/0815 , B05B5/03 , B05B7/067
摘要： An air atomising nozzle assembly for electrostatic spray guns is disclosed. The nozzle assembly is made of polyamide-imide («Torlon») plastic parts and includes an air cap having a central bore which surrounds a fluid nozzle tip. The fluid nozzle tip has a nut formed on its forward end to facilitate threading of the rearward end of the nozzle tip into a threaded bore of the gun body. Formed on the front part of the nozzle, either as a part of the nut or a cylindrical surface adjacent the nut, is an accurately machined surface engageable in press fit relationship with a mating accurately machined bore of the air cap. These mating press fit surfaces centre the bore of the air cap relative to the nozzle tip so as to leave an annular, evenly dimensioned air flow passage surrounding the nozzle tip and defined between the nozzle tip and the bore of the air cap. The air cap is retained in a one-piece resilient retaining ring by snapping the air cap into an annular lip of the retaining ring. The retaining ring is then threaded onto the gun body to secure the nozzle assembly onto the gun body.
摘要翻译： 公开了一种用于静电喷枪的空气雾化喷嘴组件。 喷嘴组件由聚酰胺酰亚胺（“Torlon”）塑料部件制成，并且包括具有围绕流体喷嘴尖端的中心孔的空气帽。 流体喷嘴尖端具有形成在其前端上的螺母，以便于将喷嘴尖端的后端螺纹连接到枪体的螺纹孔中。 形成在喷嘴的前部，作为螺母的一部分或与螺母相邻的圆柱形表面，是精确加工的表面，可与压盖配合关系与空气帽的匹配精密机加工孔相接合。 这些配合的压配合表面使空气帽的孔相对于喷嘴尖端居中，以便在喷嘴尖端周围留下环形且均匀尺寸的气流通道，并限定在喷嘴尖端和空气帽之间。 空气帽通过将空气盖卡入保持环的环形唇缘中而保持在单件弹性保持环中。 然后将保持环拧到枪体上，以将喷嘴组件固定在枪体上。
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公开(公告)号：EP0092365A2
公开(公告)日：1983-10-26
申请号：EP83302048.0
申请日：1983-04-12
申请人： NORDSON CORPORATION
CPC分类号： B05B7/0815 , B05B5/03 , B05B7/067 , B05B12/12 , B05B12/124 , B05B12/126
摘要： A spray coating system including a gun from which electrostatically charged liquid coating material, atomized with the aid of a first air stream and shaped in a desired fan pattern with a second air stream, is emitted to coat an object spaced therefrom. Separate signal-controlled valves are provided to independently control the liquid coating flow rate, atomization air stream flow rate, and fan-shaping air stream flow rate. Signalcontrolled electrostatic voltage regulating means are provided to control the magnitude of the electrostatic voltage used to electrostatically charge the liquid coating particles. An electronic controller having means for entering the identity of a particular article to be coated and a «look-up» table memory correlating part identity with the requisite voltage level and flow rates for the coating material, atomizing air stream, and fan-shaping air stream for various articles automatically controls the electrostratic voltage source and the various valves to provide the necessary voltage and flow rates previously empirically determined and stored in the controller memory.
摘要翻译： 一种包括喷枪的喷涂系统，其中喷射静电电荷的液体涂料，借助于第一气流雾化并以期望的风扇图案形成第二气流，以涂覆与其间隔开的物体。 提供独立的信号控制阀，以独立控制液体涂层流速，雾化空气流量和风扇成形气流流量。 提供信号控制的静电电压调节装置以控制用于静电充电液体涂覆颗粒的静电电压的大小。 具有用于输入要涂覆的特定物品的身份的装置的电子控制器和“查找”表存储器将部件标识与涂覆材料，雾化空气流和扇形物质的必要电压水平和流速相关联， 用于各种物品的成形气流自动控制电压源和各种阀以提供先前根据经验确定并存储在控制器存储器中的必要电压和流速。
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