Anti-seawater corrosion coating used for metal products

Abstract

The invention discloses an anti-seawater corrosion coating used for metal products. The coating comprises a base layer and a sealing paint surface layer. The base layer is pure aluminum metal, the sealing paint surface layer is a composite paint layer and is formed by compounding of a epoxy micaceous iron oxide paint layer and an epoxy asphalt paint layer. The anti-seawater corrosion coating used for metal products disclosed in the invention has the advantages of reasonable material selection, scientific preparation, and excellent seawater corrosion resistance under euxinic total immersion conditions. Once coating can provide 4-5 years of anti-corrosion protection to metal products.

Description

technical field [0001] The invention relates to a metal product, in particular to a seawater corrosion-resistant coating for metal products, which belongs to the technical field of metal products. Background technique [0002] With the progress of society and the development of science and technology, metal products are more and more widely used in various fields of industry, agriculture and people's life, and at the same time, they have created more and more value for society. Our country is a big ocean country. Many people cannot live and work without the marine environment. Metal products used in the marine environment are often affected by various marine conditions such as ocean atmosphere, seawater splashing, tidal range, and seawater immersion. There is a problem that the product performance is degraded, aged, rusted and scrapped because it cannot withstand long-term seawater corrosion. [0003] In order to enhance the corrosion resistance of metal products in the mar...

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Problems solved by technology

Our country is a big ocean country. Many people cannot live and work without the marine environment. Metal products used in the marine environment are often affected by various marine conditions such as ocean atmosphere, seawater splashing, tidal range, and seawater immersion. There are problems of product performance degradation, aging, rust and scrapping due to the inability to withstand long-term seawater corrosion

[0003] In order to enhance the corrosion resistance of metal products in the marine environment, people have adopted many protective measures, such as coating with corrosion-resistant materials, metal spraying, and the combination of metal spraying and non-metallic coatings. Although these protective measures have achieved certain However, most of them have no lasting effect, and the protective effect cannot stand the test of time; the main reason is that people choose unreasonable metal materials or inorganic coating materials, and the research on new anti-corrosion materials is not deep enough. The compound preparation is not complete, and it has not been able to withstand a long period of corrosion test, so it is eager for quick success and instant benefit

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