In the shipbuilding industry, due to the large amount of leakage of seawater conveyed by the pump through the shaft seal, there is also a large amount of sediment in the seawater, which not only reduces the operational performance of the pump, but also pollutes the environment, corrodes the hull, components, and adjacent equipment, affecting the normal operation of ships. Therefore, equipment in this industry usually needs to have good wear and corrosion resistance, as well as good durability.