鋼閘門的保護(hù)，有的就應(yīng)用這種方法。它是用一種更為活潑的金屬，如鋅等，連接在鋼閘門上。這樣，當(dāng)發(fā)生電化學(xué)腐蝕時(shí)，被腐蝕的就是那種比鐵更活潑的金屬，而鐵被保護(hù)了。通常在輪船的尾部和在船殼的水線以下部分，裝上一定數(shù)量的鋅塊，來防止船殼等的腐蝕，就是應(yīng)用的這種方法。電化學(xué)保護(hù)法的應(yīng)用除海水或河道中鋼鐵設(shè)備的保護(hù)外，還應(yīng)用于防止電纜、石油管道、地下設(shè)備和化工設(shè)備等的腐蝕。

This method is applied to the protection of steel gates. It is connected to the steel gate with a more active metal, such as zinc. In this way, when electrochemical corrosion occurs, the metal that is corroded is the one that is more active than iron, and iron is protected. This method is usually applied to the stern part of a ship and the part below the water line of the hull, where a certain amount of zinc blocks are installed to prevent the corrosion of the hull, etc. In addition to the protection of steel equipment in seawater or rivers, the application of electrochemical protection method is also applied to prevent corrosion of cables, oil pipelines, underground equipment and chemical equipment.

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