Cathodic protection of ships
Release time:
2024-11-18
The amount of stagnant dirty water in the ship's bilge is too small, so conventional anodes cannot provide protection. Experiments have been conducted using conductive adhesives to attach very flat anodes to polished surfaces, but the results showed that this method is not very effective. However, using aluminum or zinc alloy wire anodes with a steel core has yielded better results. These wire anodes have a diameter of 6 to 10 mm and are laid in a ring shape directly on the deck. They pass through fixed structural components and are secured in place with brazing. Sprinkling zinc powder on the relevant areas can increase activity and provide additional protection. Sprinkling 10 to 100 micrometers of zinc powder in corrosion pits can achieve good localized protection, but it is necessary to sprinkle zinc powder regularly, such as every 3 to 6 months. The wire anodes can be used for 2 years after installation.
The amount of stagnant dirty water in the ship's bilge is too small, so conventional anodes cannot provide protection. Experiments have been conducted using conductive adhesives to attach very flat anodes to polished surfaces, and the results indicate that this method is not very effective. However, using aluminum or zinc alloy wire anodes with a steel core has yielded better results. These wire anodes have a diameter of 6 to 10 mm and are laid in a ring shape directly on the deck. They pass through fixed structural components and are secured in place with brazing. Sprinkling zinc powder on the relevant areas can increase activity and provide additional protection. Sprinkling 10 to 100 micrometers of zinc powder in corrosion pits can achieve good localized protection, of course, zinc powder needs to be sprinkled regularly, such as once every 3 to 6 months. Wire anodes can be used for 2 years after installation.
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The company's main products: magnesium alloy sacrificial anode series, aluminum alloy sacrificial anode series, zinc alloy sacrificial anode series, and cathodic protection supporting products, such as more than a dozen varieties and hundreds of specifications.
Focus on the development and production of cathodic protection materials
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