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                                                                                                                                                                                      热收缩套补口密封试验

                                                                                                                                                                                      点击次数:   更新时间:22/08/11 16:39:08     来源:www.brooklynegan.com关闭分    享:
                                                                                                                                                                                        热收缩套补口有利于管道的防腐和保温,密封性越好,效果越好。所以施工后我们可以做一下试验。主要是为了能够验证密封如何,以下是补口密封试验的一些具体介绍:
                                                                                                                                                                                        1、防腐层补口的密封性是补口成败的决定因素,热收缩套搭接区的密封性差,土壤中的水分就会通过搭接边缘向里渗透,导致补口失效,而阴级保护电流又不能抵达管体表面,使管体产生腐蚀。
                                                                                                                                                                                        2、将热收缩套试件悬挂在溶液中,将试件与6V直流电源的负级连接,同时间将浸在溶液中的一根阳级与电源正级连接,组成一个试验电路。通过定期测量电路中已标定电阻所产生的电压降,来说明泄漏电流是否存在。即不但确定补口材料的绝缘密封性能,而且在一定程度上综合反映了补口材料对原防腐层和裸露金属的黏结能力、与原防腐层搭结区防水密封的完整性以及补口材料的吸水性。
                                                                                                                                                                                        因此,从以上这些介绍我们就能够知道,其实热收缩套补口密封试验步骤简单,大家可作为一项参考,补口密封越好,那么可以说明防腐效果越好。

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