| 法兰腐蚀问题的解决方案 |
| 添加时间:2017/4/22 16:02:28 浏览次数: |
► 维护油漆解决方案 For maintenance of paint solution
维护油漆是可以直接粘结在基材上的硬膜,一般为环氧或聚氨酯类的涂料。法兰存在很多棱角与边缘,由于边缘变薄效应,常规油漆系统很难有效地覆盖边缘。加厚涂层虽然会解决边缘保护的问题,但同时会封死紧固件导致后续维修时无法拆卸。另外,操作螺栓时会破坏涂层,在维修之后必须重新涂装。 Maintain the paint can be directly bonded on the base of epidural and general for epoxy or polyurethane coatings. Flange there are a lot of edges and corners and edges, the edge thinning effect, conventional paint system is difficult to effectively cover edge. Although thickening of coating will solve the problem of edge protection, but also leads to the follow-up maintenance sealed fastener cannot remove. In addition, the bolts will destroy the coating operation, must make a new painting after repair.
► 机械解决方案 Excellent mechanical solution
主要通过保护罩和夹具密封法兰以及法兰面的间隙,通常为不锈钢或塑料材质配有橡胶密封条。这种保护方式灵活性较差,需要存储与各种尺寸的法兰完全匹配的外罩或夹具。 Mainly through the shielding and fixture sealing flange and the flange clearance, below is usually stainless steel or plastic with rubber sealing strip. This way of protection flexibility is bad, need to be stored with different sizes of flange completely matched outer garment or fixture.
► 胶带或半固态防腐带解决方案 Tape or semi-solid antiseptic solution
卷状包装的胶带(如矿脂胶带、蜡质或弹性聚合物的包扎带)通过缠裹在基材表面进行保护。由于半固态聚合物的防水性较好,这种保护方式可以提供可靠的防腐保护。 Volume of packing tape (such as petrolatum tape, wax or elastic polymer binder) through the bound up in the base material surface protection. As a result of the semi-solid polymer water proofing property is good, this way of protection can provide reliable corrosion protection.
但是,如果法兰外形复杂,这种材料不仅耗时而且施工困难。在需要拆装螺栓的时候,材料相对柔软、切割方便,但在拆装后很难重新密封并恢复原有的保护,一般需要重新施工。 However, if the flange complex shape, the material is not only time-consuming and difficult construction. In need of the mounting bolts, the material is relatively soft, easy to cut, but it is difficult to seal again after disassembling and restore the original protection, generally need to construction.
► 热熔性塑料解决方案 For hot melt plastic solution
热熔性塑料实质上是一种高温加热的蜡状可熔性聚合物,通过专业热熔设备喷涂到基材表面上。这种保护方式的优势在于可再熔并且可以重复利用,节约成本。但此方式还需要动火作业、专业设备以及施工服务,虽然可以重新利用,但是在检修时不易打开和密封。 Hot melt plastic is essentially a kind of high temperature heating waxy meltability polymer, through professional hot melt equipment coating to the substrate surface. This way of protecting the advantage of remelting and can be reused, cost savings. But this way need hot work, professional equipment and construction services, although can be reused, but at the time of repair is not easy to open and seal.
► 聚合物密封袋解决方案 For polymer bags solution
密封袋可以将法兰完全包裹起来,其成分是由低渗透性聚合物、缓蚀剂蒸汽和干燥剂组成。它安装便捷,但是袋子的两端仅用胶带密封,而不是采用持久有效的机械粘结。袋子内部存在大面积的蒸汽空间,容易聚集大量的水分,缓蚀剂也会在一段时间内被消耗掉。 Bags flange can be completely wrapped, its composition is composed of low permeability polymer, corrosion inhibitor, steam and desiccant. Its installation is convenient, but the ends of the bag only tape sealing, rather than use persistent effective mechanical bonding. Bag within the steam room of large area, easy to gather a large number of moisture, corrosion inhibitor will be for a period of time is consumed.
上述方案虽然能起到一定的防腐保护作用,但在施工、检维修方面仍存在一些缺陷,需探索研发有效的解决方案,为法兰提供长期、全面的保护。 The above plan while can play a certain amount of corrosion protection, but there are still some shortcomings in construction and maintenance areas, to explore the development of effective solutions, provide long-term, comprehensive protection for the flange. |
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