公开(公告)号：US5429840A

公开(公告)日：1995-07-04

申请号：US250099

申请日：1994-05-26

申请人： John Raterman ,  Jurgen Beneche ,  Arthur Cieplik ,  Thomas Burmester ,  Michael L. Gill

发明人： John Raterman ,  Jurgen Beneche ,  Arthur Cieplik ,  Thomas Burmester ,  Michael L. Gill

IPC分类号： B05B7/08 ,  B05C5/02 ,  B05D1/26 ,  B05D3/04 ,  B05D7/00 ,  B05D7/24 ,  B29C44/46 ,  B05D5/00

CPC分类号： B05D1/265 ,  B05B7/0884 ,  B05C5/0254 ,  B05C5/0275 ,  B05D3/042 ,  B29C44/461 ,  B05C5/0237

摘要： Apparatus and methods for producing intermittent, discrete patterns of foam coating material, onto discrete substrates or substrate areas, where the patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. Air flow is initiated from both air slots prior to the initiation of the foam flow. Also, the air flow is continued beyond that point in time when the foam flow ceases. The delays between the operations of the air flow and the foam coating flow are on the order of micro seconds. Alternatively, the lead and lag air start and stop times on each side of the foam coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge on the substrate.

摘要翻译： 用于产生间断的离散图案的泡沫涂层材料到分立的衬底或衬底区域上的装置和方法，其中图案具有尖锐的，正方形的前缘和后缘以及侧边。 狭缝喷嘴模具具有沿着狭槽挤出开口的细长空气槽。 在泡沫流动开始之前，气流从两个空气槽开始。 而且，当泡沫流动停止时，空气流继续超过该点。 空气流动和泡沫涂层流动的操作之间的延迟大约为微秒级。 或者，泡沫涂层材料两侧的引导和滞后空气开始和停止时间是不同的，以控制基板上正方形切割和方形截止涂层边缘的精确布置。

公开(公告)号：US5733597A

公开(公告)日：1998-03-31

申请号：US415614

申请日：1995-04-03

申请人： James W. Schmitkons ,  James Turner ,  Marcus P. Zupan ,  Antonio Rivas ,  Jurgen Benecke ,  Arthur Cieplik ,  Thomas Burmester ,  Bentley Boger

发明人： James W. Schmitkons ,  James Turner ,  Marcus P. Zupan ,  Antonio Rivas ,  Jurgen Benecke ,  Arthur Cieplik ,  Thomas Burmester ,  Bentley Boger

IPC分类号： B05B7/08 ,  B05C5/02 ,  H05K3/00 ,  H05K3/28 ,  B05D5/00 ,  B05C5/00

CPC分类号： B05C5/0291 ,  B05B7/0861 ,  B05C5/0254 ,  H05K3/0091 ,  H05K2201/0989 ,  H05K2203/0126 ,  H05K2203/081 ,  H05K2203/1366 ,  H05K2203/1476 ,  H05K2203/1509 ,  H05K2203/159 ,  H05K3/284

摘要： Coating dispenser apparatus and methods which utilize a snuff back device for removing a small amount of coating material from the discharge passage of the dispenser upon shut-off thereof at the end of a coating run. A control is provided which discharges the material removed from the discharge passage back into the discharge passage upon a predetermined delay after the start of the next coating run. The disclosed methods contemplate the discharge of coating material back into the discharge passage in the middle of the next coating pattern, or depending on the application, during any segment of the next coating pattern after a defined leading edge of the pattern is created, during which segment the coating material discharged back into the discharge pattern smoothly blends into the coating pattern as it is applied to a substrate. The apparatus and methods are especially useful for applying conformal coating patterns onto circuit boards.

摘要翻译： 涂覆分配器装置和方法，其利用鼻烟回装置，在涂覆运行结束时关闭时，从分配器的排放通道去除少量涂料。 提供了一种控制装置，其在从下一次涂覆运行开始之后预定的延迟时间将从排放通道排出的材料排放回排放通道。 所公开的方法考虑在形成图案的限定前缘之后，在下一涂层图案的中间或根据应用在涂覆图案的任何部分期间将涂层材料排放到排出通道中，在此期间 将排放到排出图案中的涂层材料的分段在施加到基材上时平滑地混合到涂层图案中。 该设备和方法对于将适形涂层图案应用于电路板特别有用。