电泳槽设计之槽液流动方向简介中英对照版

Direction of Flow 流动方向 An electrocoat tank should be designed to move paint continuously in a circular path, with the surface moving in the same direction as the conveyor (see Figure 2). This design is experience-proven and results in the cleanest electrocoat body. Smooth fluid flow direction change (at the entrance end of the tank) is accomplished most effectively by using a radial lip. Paint headers direct paint up the entrance decline and help prevent pigment settling as the paint changes direction. Two variations of this design are currently being employed (see Figure 3). Bidirectional flow systems have also proved successful when incorporated with bottom center filtration. 电泳槽要设计成使油漆沿单一循环路线连续运动，液面运动方向与运输链运行方面相同（见图2），实际经验证明，这样的设计能得到最干净的电泳车身。平稳的流向变化（在槽入口端）可考虑使用一“摇臂导向板”来实现。在工件入口端斜坡上喷头以引导漆液流向入口端，漆液虽改变流向，以有助于防止颜料沉淀。现在这种设计的两种形式已被普遍采用（见图3）。另外，底部中央有抽出过滤装置的双向流动系统也已被证明是成功的。 A combination of floor headers and vertical side pipes with eductors provide effective tank agitation. If necessary, exit-end draft tubes can be added for enhanced circulation. Draft tubes are large volume agitator pump systems which move paint from the top surface and start it moving across the bottom surface. Floor headers should be supported approximately three inches (7-8 cm.) above the tank floor to permit free flow of paint along the bottom (see Figure 2). 槽底的喷射嘴与竖立式带喷头侧管相结合可提供有效的槽液搅拌。必要时，为加强循环，可在出口端加引流管。引流管是大流量搅拌泵系统，它从液面使漆液运动，它使漆液做横跨底表面运动。用引流管时，大量漆液不经过滤而返回，因此当采用引流管时会产生染质污物和缩孔问题，就会延长问题存在的时间。槽底喷管要设在离槽底约3英寸（7-8cm）处，这样可使漆液沿槽底自由流动（见图2）。 Any area in the paint tank that is not properly agitated will permit pigment settling. Areas such as drains, sumps, pump wells, or dead paint lines may collect pigment. A paint return line with an eductor should be inserted into such areas to prevent such settling. 在漆槽中搅拌不彻底的任何区域都会引起颜料沉淀。象排出口，储槽，泵井或空油漆管路等部位都会有颜料汇集。为防止此类沉淀，要在这些区域安设带喷射嘴的油漆返回管路。 The tank floor should be angled so that the main tank and weir will drain to permit maintenance. The holding tank may be used to contain inadvertent overflow from the dip tank. 槽底要有一定的坡度，这样主槽和溢流槽均可以完全排放，便于维修。也可以用电泳储存槽来盛装工艺槽偶然溢出的槽液。 [caption id="attachment_226" align="alignnone" width="423" caption="电泳槽液流动方向"][/caption]

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电泳涂装电泳槽