How to choose zinc anode

Zinc is the most outstanding anode in the application of anode. Moreover, compared with aluminum anode, zinc anode is slightly superior in both performance and effect. But for people who do not often contact with zinc anode products, what should be paid attention to when choosing zinc anode?

In the cathodic protection materials, metal equipment is mainly protected by the consumption of anode. At present, the anode materials used in cathodic protection system mainly include magnesium anode, aluminum anode and zinc anode, among which magnesium metal and aluminum metal are used more, while zinc anode is less used. What are the reasons that limit the use of zinc and what should be paid attention to when choosing zinc and its alloys?

1、 Limiting factors of zinc anode

Zinc metal has the characteristics of small crystallization temperature range, low melting point, easy filling and forming, difficult to loose, not easy to stick to the mold, and can extend the use of die casting die. Therefore, zinc metal can be die cast into various complex and thin-walled castings. The castings can be treated with various surface treatments, especially with good electroplating property and good performance at room temperature. However, when zinc alloy anode is used, it is better not to add copper element in order to avoid the degradation of mechanical properties. In addition, zinc alloy is prone to aging, so impurity content should be strictly controlled in material selection and melting.

When choosing zinc anode, it is necessary to select the mechanical parts with special mechanical properties, high hardness, good wear resistance and general dimensional accuracy requirements. It is suitable for die casting thin-walled, large size, high precision and complex shape workpieces, such as electrical components and their boxes.

2、 How to choose zinc and its alloy materials

The selection of zinc and its alloy anode materials should be based on the scope of use. Attention should be paid to the mechanical properties, tensile strength, maximum resistance to fracture, brittleness, plasticity and hardness of zinc alloys. Only by paying attention to various factors, paying attention to the accuracy and processability of zinc anode, can magnesium metal play a greater role.

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 corrosion protection, cathodic protection, engineering design, installation and technical services.