Application of aluminum alloy anode in marine mud environment

In the current steel production field, although the actual output is quite a lot, the annual loss caused by corrosion is also huge. Because of this, in order to minimize the loss, different types of sacrificial anode products with outstanding anti-corrosion effect are gradually developed and produced. Since the corrosion protection effect of sacrificial anode is outstanding, can this product be used in the mud environment?

The sacrificial anode products in the current practical application are various, and the performance and application range of different products will also be different, which makes the demander must master the product performance and specific application range of different products. The following is an example of aluminum alloy anode products. Experts from the industry will give you a detailed introduction of the specific application of this product in the mud environment.

At present, most of the domestic uses sacrificial anode and coating to carry out corrosion protection. During the maintenance of platform pile legs, technicians found that uneven dissolution of sacrificial anode in water could easily lead to grain shedding and shorten the service life of anode. The anode of aluminum alloy is different, which is mainly made of high purity aluminum, zinc, bismuth and silicon are added, and the allowance is aluminum.

The sacrificial anode products are manufactured by advanced casting technology. The working potential in oil polluted seawater is between -0.75-0.85v, the current efficiency is not less than 75%, and the products are easy to fall off. The invention can be used to protect high strength steel, stainless steel and titanium alloy in oil pollution seawater environment.

At present, for the aluminum alloy anode products buried in the mud, the corrosion products of the products adhere to the anode surface and are not easy to fall off, which will affect the anode to continue to work, and can not play an effective role in protecting the submarine pipeline. It takes aluminum as the base material, adds active metal elements, effectively improves the microstructure of aluminum alloy anode material, improves the electrochemical performance. In the environment of strong corrosiveness in Bohai Bay, the sacrificing anode efficiency in the mud reaches 74%, 30% higher than that of similar products in the market, reduces the corrosion of platform and submarine pipelines, and has the characteristics of high current efficiency and long service life, which can reduce the corrosion of platform and submarine pipelines To effectively protect submarine pipelines and platforms.

In seawater and other medium containing chloride, the sacrificial anode product of aluminum alloy can be welded directly to the protected structure without packing. The electrochemical performance of the product is very high, the power generation of anode material per unit weight is large, the performance is good, and the self-regulation ability of the current is strong. From the perspective of dissolution, the anode surface of this product is even dissolved, which has better protection effect than similar products in the market.

With the application of high strength steel, high-strength stainless steel and titanium alloy in naval ships and offshore structures, the environment is not only pure sea water environment, such as the bottom of the ship, which contains a lot of oil pollution, and its corrosion environment is oil pollution sea water environment. Because the oil pollution seawater environment is a harsh corrosion environment, the sacrificial anode cathodic protection technology is needed for the high-strength steel, high-strength stainless steel, titanium alloy and other metal materials used in the environment. Among them, the aluminum alloy anode has the best performance and is widely used. However, the high driving potential of ordinary aluminum alloy anode may lead to hydrogen embrittlement of these metal materials, which is harmful. Therefore, the driving potential of sacrificial anode of aluminum alloy must be reduced.

Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in manufacturing MMO flexible anode, conductive polymer flexible anode and titanium coated anode. It mainly provides corrosion protection, cathodic protection, engineering design, installation and technology services.