Performance of sacrificial anode products

In industrial production, the maintenance of equipment is particularly important, one of the most important methods is to carry out equipment corrosion protection. Different from traditional anti-corrosion products, sacrificial anode is very outstanding both in anti-corrosion performance and practical utility. Because this kind of product is not as well known as the traditional anticorrosive coating, its application scope is often very limited. In order to further promote the application of this product, people need to have a detailed understanding of the actual function of this product.

Although there are not many sacrificial anode products in practical application, the performance of different products is often different. In practical application, the protective effect of sacrificial anode products has become an effective means of metal corrosion protection, and the sacrificial anode protection is widely used in various construction fields. The forced current plays an important role in anode protection system.

In industrial production, the effectiveness and functions of impressed current cathodic protection are as follows:

1. The impressed current cathodic protection system is also called impressed current system, and auxiliary anode is buried in the same electrolyte environment around the protected structure;

2. Through a DC power supply, the auxiliary anode is used as the anode and the protected structure is taken as the cathode to form the power supply circuit. Then, the DC current is applied to the protected metal, so that the protected metal is forced to become a cathode to implement cathodic protection;

3. In this case, the function of the power supply is to provide uninterrupted current to the anode protection system. Usually, the main power supply is constant current and constant voltage rectifier and constant potential instrument. Generally, the impressed current cathodic protection system mainly consists of power supply and control cabinet, cable and control reference electrode, protection effect test piece, electrical insulation device and electrical insulation protection device.

Taking the application of zinc alloy sacrificial anode in other fields, the most common product application is in the application of hull anti-corrosion. Generally, zinc blocks will be embedded in the hull of a marine ship. Because the hull is made of steel, the steel will react with the seawater more or less and corrode the hull, and the activity of zinc is stronger than that of iron. In seawater, zinc often reacts earlier than iron. Zinc is corroded because of the loss of electrons, while iron is not corroded, and the hull is protected. In this reaction, zinc is corroded by losing electrons as anode and iron is protected as cathode, which is called cathodic protection of sacrificial anode.

In addition, for the protection of steel gate, some use this method. It is also connected to the steel gate with a more active metal, such as zinc. If electrochemical corrosion occurs, it is the metal that is more active than iron, and iron is protected.

Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.