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Comparative study of tube sheet surface treatment processes

Electroplating Process: Involves electrodepositing a metal layer, such as zinc or nickel, to improve corrosion resistance. Its advantages include lower cost and ease of operation, but the plating layer may be thin and prone to wear during long-term use, making it suitable for general environments.

Thermal Spraying Process: Utilizes thermal spraying techniques, such as flame spraying, to form a thicker protective layer. This process offers superior wear resistance and high-temperature resistance, but it is more expensive and requires specialized equipment, making it suitable for demanding operating conditions.

Chemical Conversion Treatment: Such as phosphating or passivation, involves generating a protective film through chemical reactions. Its advantages include being environmentally friendly and providing good uniformity, but the protective strength is weaker, making it more suitable for light-load applications.

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