一、前言牺牲阳极法是对地下,水中、化工介质中的金属构筑物进行电化学保护的有效方法之一,这种方法不要外部电源,施工方便,管理简单,对邻近构筑物不造成干扰,不易造成过保护,对于有交流感应电压的管道,还可起接地排流作用。因此,牺牲阳极法是 I. Preface The sacrificial anode method is one of the effective methods for electrochemical protection of metal structures in underground, water and chemical media. This method does not require external power supply. It is convenient for construction and management, and does not cause interference to nearby structures and is not easily caused Over-protection, for the exchange of induction voltage of the pipeline, but also play the role of ground discharge. Therefore, the sacrificial anode method is