The anti-corrosion and rust prevention of marine steel plates is of crucial importance. Here are some more detailed information:

Metal plating protection

Process and characteristics of hot-dip galvanizing

Process: Hot-dip galvanizing is to immerse the steel plate in molten zinc liquid to form a uniform zinc coating on the steel plate surface. The hot-dip galvanizing process includes steps such as surface treatment, hot-dip galvanizing, cooling, and post-treatment.

Characteristics: The hot-dip galvanized coating has good corrosion resistance, adhesion, and wear resistance and can effectively protect the steel plate from corrosion. The thickness of the hot-dip galvanized coating can be adjusted according to needs, generally between 50μm and 150μm. The hot-dip galvanizing process is suitable for steel plates of various shapes and sizes, but for steel plates with complex shapes, there may be problems of uneven coating.

 

 

 

Process and precautions of electroplating

Process: Electroplating is to plate a layer of metal such as zinc, nickel, or chromium on the steel plate surface by electrolysis. The electroplating process includes steps such as surface treatment, electroplating, and post-treatment.

Precautions: During the electroplating process, attention should be paid to controlling parameters such as current density, temperature, and pH value to ensure the quality and performance of the coating. The thickness of the electroplated coating is generally relatively thin, usually between 5μm and 25μm. Therefore, regular maintenance and repair are required. The electroplating process is suitable for the anti-corrosion and rust prevention of small parts and precision components. For large marine steel plates, the cost of electroplating is high and the construction is difficult.

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