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阳极保护是在工业上应用不久的一项设备防腐新技术。是利用某些金属具有钝化的特性,(即在电解质溶液中,通以一定的阳极电流,金属表面生成一层高阻抗耐腐蚀的钝化膜),使金属与腐蚀介质隔离,从而达到防腐的效果。碳钢等金属在电解质溶液中按其阳极极化特性出现活化→钝化→过钝化现象。开始通电,发生明显电解现象,不断进行腐蚀,金属处于活性状态;电位继续增大,金属开始钝化,逐步形成一层浅黄色金属钝化膜,起到防
Anode protection is a new technology in the industrial application of anti-corrosion equipment. Is the use of certain metals passivation characteristics (that is, in the electrolyte solution, through a certain anode current, the metal surface to generate a layer of high resistance to corrosion of the passive film), the metal and the corrosive medium isolation, so as to achieve corrosion Effect. Carbon steel and other metals in the electrolyte solution according to its anodic polarization characteristics of activation → passivation → passivation phenomenon. Start electricity, the phenomenon of significant electrolysis, continuous corrosion, the metal is active; potential continues to increase, the metal began to passivation, and gradually form a layer of yellowish metal passivation film, play a defense