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电泳后清洗系统简介中英对照版

585 人参与  2012年02月14日 00:30  分类 : 电泳设备 电泳设备工艺  评论
Recirculated Rinses 1 and 2 can be designed to the same specifications. The body should reach rinse 1 within one minute of exiting the paint bath.? Rinse volumes of 50 GPM per 100 ft.2?(9.3M2) per minute have proven quite adequate. Spray nozzles should be adjusted to flood all surfaces of the body, both interior and exterior. Exterior surfaces are easily cleaned and require approximately 50% of the spray nozzles. Interior surfaces require flooding and direct spray to rinse those areas prone to runouts (see Figure 14). 第一道和第二道循环冲洗可设计成相同规格,每分钟50GPM(加仑/分)/100平方英尺(9.3 M2)的冲洗量已相当充分。喷嘴要调整到能喷到车身内部和外部的所有表面。外表面很容易清理,直接喷洗那些朝下的表面(见图14),这些冲洗要分四个区段并带专用控制阀。
FlatJet nozzles made by Spraying Systems are recommended for exterior body rinsing and are helpful in controlling foam.? VeeJet nozzles are 电泳冲洗 acceptable but tend to atomize the permeate and cause foam.? Spray headers on 18 inch (45cm) centers and nozzles 18" from the body permit good rinsing and prevent spray pattern interaction, which can result in excessive foaming.? Floor headers must be equipped with individual control valves to prevent spraying into the sanitary pan. Nozzles for interior areas will vary depending upon requirements, but 30-40%, zero-degree nozzles are required for spraying across the body and for roof-rail rinsing.? Piping should be of stainless steel or a combination of stainless steel and PVC. 对外表面的冲洗建议使用有利于控制泡沫的Spraying Systems 生产的V型喷嘴。平嘴型喷嘴(VeeJet)也可以使用但容易使超滤液形成水物而引起泡沫。喷嘴集中在18英寸时(45cm)平管上冲洗效果好,且可避免喷射图形相互干扰而导致严重起泡,建议设底板喷管以喷洗车身底板,底部喷管必须配单独的控制阀以泳喷到接灰盘。内表面喷嘴视各种要求而定,需要30-40%的零度喷嘴或扁管喷嘴作为车身横截面喷洗及车顶裙冲洗用。输送管道 应为不锈钢或不锈钢和PVC的化合物。 The systems with the least amount of foam are designed so that the car bodies are close to the floor and provide for a small "lake" below the rinse headers. These "lakes" constitute an integral part of the rinse reservoir and form the pump well when vertical pumps are used. The lakes should notextend beyond the zone risers. The reservoir should have a capacity of 3-to-4 times the pumped volume. The system design should include provision for agitation on the floor of the tank, and the agitation should be continuous, even during non-production periods.
Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17   Figure 17
  系统要设计成使产生的泡沫减至最少,这样车身靠近底部并在喷管下面提供一个“小池”这些“池”构成了整个冲洗槽,在使用立式泵时也成为泵井,池外堰不能超过冲洗段的沥水堰。槽子的容积应为泵流量的3-4倍,系统设计包括提供槽底的搅拌,要求搅拌即使在不生产期间也要连续进行。 Long shaft or vertical turbine pumps are in common use and should be employed for the recirculated rinses to eliminate the problems associated with seals? required for horizontal pumps. When vertical pumps are used, a foam baffle (note Figure 14.)? should be constructed to extend within 12 inches (30 cm.) of the bottom of the pump well to minimize foam migration outside the rinse. Rinse pressure should be 5-10 psi at the nozzle.? Circulation should be provided 24 hrs/day for agitation and filtration. 一般使用长轴或立式泵,使用是用于循环冲洗可以消除使用卧式泵需要的密封问题,使用立式泵时要考虑一个一直伸到泵池的部12英寸(30cm )之内的泡沫隔板(见图14),以尽量减少冲洗室外的泡沫形成,冲洗的压力应为5-10 psi(磅/平方英寸)。 Rinse tanks can be made of steel coated with Flakeline 600L or equivilent or of 305 or 304 stainless steel.? Rinses should be filtered to 25 microns (maximum) with the filter located between the pump and the spray headers.? The simplest, most nearly fail-safe rinses overflow by gravity from the ultrafiltrate storage tank to the rinse stages until the paint rich ultrafiltrate returns to the dip tank. Counterflowing should be maintained during non-production periods to reduce the paint solids in the rinses. 冲洗槽用涂上Flakeline 600L的钢或等同的304 或305不锈钢制成。冲洗液 要经装在泵和喷管之间的25um(最大)的过滤器过滤。考重力从超滤液储槽自流到冲洗工序,在将含漆浓度高的超滤液返回到电泳槽是最简单的,也是最安全的冲洗溢流方式。在不生产期间仍要维持逆流以减少冲洗液中的涂料固体份。 The fresh ultrafiltrate rinse can be positioned immediately after the last header in the second recirculated rinse. Only 10-20 seconds of drain time is required before the application of fresh ultrafiltrate. 在第二次循环冲洗之后,可紧接着配置新鲜超滤液冲洗,在新鲜超滤液冲洗之前,要沥水10-20秒。
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