The Role of Hardfacing in Extending Valve Service Life
Date:2025-03-02
Hardfacing is a surface engineering technique used to enhance the wear and corrosion resistance of valves operating in harsh environments. Key aspects include:
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Common Hardfacing Materials: Stellite (Co-Cr alloy) for high-temperature wear resistance, Tungsten Carbide for extreme abrasion resistance.
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Deposition Methods: Plasma Transferred Arc (PTA) welding for precise, high-performance coatings.
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Applications: Hardfaced gate valves in oil refineries, nuclear plants, and high-pressure steam systems.
English