1 前言 化工企业中常采用橡胶作为耐酸设备的衬里层。衬胶设备最常见的腐蚀破坏部位是法兰短节。往往由于法兰面之间密封不好,出现微小渗漏,使碳钢法兰在酸液的侵蚀下,出现缺口或凸凹不平。常规的修复方法是更换法兰短节,重新衬胶。其缺点是切除原法兰短节和焊接新的法兰短节时,由于施工时的高温和电流作用,对设备其它部位的衬胶造成严重影响,甚至出现大面积衬胶层损坏,而且这种方法施工周期长,工种较多,施工难度大。下面介绍一种简易的方法。 1 Introduction Chemical companies often use rubber as the lining of acid-resistant equipment. Rubber lining equipment is the most common site of corrosion damage is the flange short section. Often due to poor sealing between the flange surface, there is a slight leakage, so that the carbon steel flange erosion in the acid, there are gaps or uneven. Routine repair method is to replace the flange short section, lined rubber. The disadvantage is that when the original flange short section is cut and the new flange short section is welded, the lining rubber of other parts of the equipment is seriously affected due to the high temperature and current during construction, and even a large area of ​​lining rubber layer is damaged, and this The method of construction period is long, more types of work, construction difficult. Here’s a simple way.