What is the galvanic anode?

The galvanic anode is a component that relies on the sacrificial anode theory to protect valuable iron metals from corrosion. The anodes achieve this protection by offering a more attractive source of oxidation by electric connection to the protected metal. In this way, the galvanic anode itself "sacrifices" to prevent corrosion on metal. These galvanic anodes are generally inserts of magnesium, zinc, aluminum or specialized alloys associated with steel work with cable and buried in the ground. The galvanic anode lends cost -effective, long -term and renewable protection against corrosion to steel structures in the earth and marine environment. There are several ways to protect iron metals from this corrosion; The sacrificial anodes are among the most cost -effective and most effective. This method works by a more attractive source of oxidation than the sources of the material to be protected and thus divert the corrosion process. The galvanic anode is electrically connected to a protected metal as opposed to galvanization, which is physicThe coating. Electrically connected in this case simply means direct contact either via physical contact or using a cable connection.

In the case of steel pipes, the pipeline is connected at regular intervals with cables on magnesium plates buried in the ground. Due to the higher negative electrode potential, magnesium causes corrosion and causes positive ions from steel pipes, saving it from the rust process. The magnifying plate will be gradually consumed in the process, but will continue to protect the steel pipes until it is exhausted. A new galvanic anode may be installed at this point. The lifetime of the galvanic anode is approximately 20 years, which makes it a more suitable source of corrosion for extensive applications than conventional galvanized coatings.

6 The galvanic anode materials vary depending on the specific application and the working environment. For example, steel constraintsRukce will usually be equipped with zinc or magnesium anodes and ships with zinc or aluminum anodes. Specialized applications such as coastal oil kits use their own formulated alloy composition for their galvanic anodes.