High-silicon cast iron anodes were first used in the United States, initially only in laboratories, and in the early 1980s, such anodes began to be widely used in industrial production. This 14.5 percent silicon-containing cast iron anode is found to be prone to corrosion in seawater, so chromium will be added to the anode in the future. The function of adding chromium is to reduce the corrosion rate of the original anode.
This product is developed to ensure the on-site construction quality of cathodic protection projects and simplify the on-site construction procedures. It has the advantages of low consumption rate, convenient and fast construction, and low grounding resistance. The operation originally performed on the construction site was completed in the factory, which effectively guaranteed the construction and installation quality of the anode bed.
Applied current cathodic protection for offshore drilling platforms, underground steel pipelines, oil production combined stations, underground cables, underground storage tanks and other facilities
High-silicon cast iron anodes were first used in the United States, initially only in laboratories, and in the early 1980s, such anodes began to be widely used in industrial production. This 14.5 percent silicon-containing cast iron anode is found to be prone to corrosion in seawater, so chromium will be added to the anode in the future. The function of adding chromium is to reduce the corrosion rate of the original anode. After switching to the anode of this design, it can adapt to almost all medium environments such as seawater, freshwater, saltwater, soil and so on.
The principle of high silicon cast iron anode is that when current flows through the anode, the surface of the anode will oxidize to form a protective film, which can reduce the corrosion rate of the anode itself due to its excellent acid resistance. However, this oxide film is not resistant to alkali, so when the anode is used in a dry and high sulfate-containing environment, the anodic film on the anode surface is difficult to form, and it is easily damaged by surrounding substances.
