Welding repairs tank corrosion pitting

Article Abstract:

Unitor recommends using welding overlays to repair pitting corrosion in the hull of ageing tankers. Unlike the cold-repair technique, welding can bring damaged hull portions back to their original thickness and allows chemical bonding to occur between the deposit and the parent metal, making them virtually identical. Welding may be performed either through the MAG welding, conventional stick electrode welding or self-shielded welding technique, after considering the factors of deposition rate, operating factor and handling time.

Usage, Hulls (Naval architecture), Ships, Welding

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Early corrosion in double hulls causes concern

Article Abstract:

Some of the new double hull tankers have exhibited accelerated pitting corrosion in the bottom plating of the cargo tanks. Issues concerning reports by Intertanko on the possible factors causing the corrosion and measures to mitigate its effects are presented.

United States, International Association of Independent Tanker Owners

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Re-coating is key to preventing corrosion

Article Abstract:

Issues are presented concerning the implications for the shipbuilding and repair industry of the findings of the investigation into the structural failure which occurred on the tanker 'Castor'. Corrosion prevention is discussed.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Corrosion Inhibitors, Prevention, Corrosion and anti-corrosives, Corrosion, Sea-water corrosion, Marine corrosion

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