According to the damage of metal components to take protective measures

Metal components such as gates, pumping leaves, etc. are mainly characterized by electrochemical corrosion according to the damage of metal components. The following measures can be taken for the protection measures: sacrificial anode protection. That is, the metal with a lower electrode potential is connected with a steel gate to constitute a primary battery, and a metal with a low electrode potential is dissolved as an anode, thereby protecting the steel gate serving as a cathode from being invaded. Cathodic protection.

Using an external DC power supply, the negative pole is connected to the gate to make it the cathode, and the positive pole is connected to another scrap metal to corrode and protect the gate. Add corrosion inhibitor protection. Due to the small amount of corrosion inhibitor, convenient and economical addition, it is a more commonly used method. There are many kinds of corrosion inhibitors, such as inorganic salts such as sulfates and nitrites, and organic corrosion inhibitors such as amines and pyridines. It is possible to add a small amount of corrosion inhibitors to the sewage before the gates to change them. The performance of the medium, which greatly reduces the corrosion rate of the metal. Brush anti-rust paint. Because the damage of steel gates is mainly manifested as rust flaking, regular anti-rust paints are applied to isolate the metal from the harmful medium in the sewage, which can also play a protective role.