While using a metallic equipment, it will face a natural progression in the metal structure. Corrosion can degrade metal structures and cause heavy loss in the industry. In order to prevent the equipment from corrosion, cathodic protection method is deployed. Cathodic protection is diversely applied in many maritime zones. It is often used to diminish corrosion damage to active metal and steel surfaces. This prevention method is used all over the globe to protect pipelines, water treatment plants, storage tanks, ship and boat hulls, offshore production boards and more. Cathodic protection in Singapore is done widely in many organisations.
How it works?
Cathodic protection is the method of protection for iron and steel against electrochemical corrosion. Cathodic protection is the most extensively applied anti-corrosion control technique in electrolytic atmospheres such as seawater and soils containing water. Cathodic protection testing is a helpful substitute where it protects steel, water pipelines, gas pipes, and tank, pier stacks made of steel, ships and oil platforms. It also soothe stress rust or breaking.Some advantages of cathodic protection methods are,
- The effectiveness of the Cathodic Protection can be easily monitored.
- It can also work with Anti-Corrosion coatings, where the coatings may have been compromised.
- It is applied to marine constructions to figure the effects of corrosion.
- Increases the lifespan of marine construction.
There are two basic types of cathodic protection, namely, galvanic and impressed current cathodic protection. In galvanic process, a protective zinc coating is applied to the steel, to prevent rusting. These methods have limited life spans. Impressed current cathodic protection method consist of anodes that are connected to a power source that provides a continuous source of current flow. This method provides longer protection than galvanic method.
Cathodic protection is generally used in conjunction with coatings and can be considered as a secondary corrosion control technique.
The primary corrosion control technique normally a coating system which can be between 50 and 99 % effective. A well designed cathodic protection system will take up the remains resulting in a 100 % effective cathodic protection system.It is projected that some 3-5 % of the gross national product of industrialized countries are recognised to corrosion damage. Corrosion of metals costs an average budget nearly $300 billion per year. It is projected that one third of this value could be saved with improved corrosion prevention techniques, including cathodic protection.
Cathodic protection method is used for years to prevent structures that suffer long-term expose to corrosive environments. Many countries are still expanding this process to increase the lifetime of the equipment. Many companies are offering cathodic protection in Singapore at low cost.However, the installation of a cathodic protection system is expensive. In addition to cost, this protection method also needs repetitive maintenance, including periodic visual review.
The product that offers a protecting layer with zero reactivity, this can prolong the life of steel structures and create a nonreactive layer of protection. By providing a protective coating to the construction,the demand for cathodic protection can be reduced. As the coating reduces with time, the activity of the cathodic protection system improves to protect the deficiencies in the coating. A combination of coating and cathodic protection will habituall you to come in the maximum economic protection system.