Difficulties in manufacturing propellers of large aircraft carriers
How difficult is the manufacturing technology of large aircraft carrier propellers?
1. Break through the material barrier because it has to adapt to long-term operation in a highly corrosive environment of seawater. The choice of material will be a breakthrough point. Pure steel cannot be used because it cannot withstand long-term corrosion. According to international practice, most large ships and aircraft carriers use a special copper alloy, that is, while copper is the main component, manganese, nickel and other metals are added to improve the alloy. The rigidity of the copper is easy to deform under long-term pressure. Slight deformation is nothing. If it reaches a certain range, it will have a greater impact on the orbit accuracy of the aircraft carrier's navigation, and it will also increase noise.
2. Multi-axis propulsion technology. Generally, the aircraft carrier will install 4 propellers to improve the turning efficiency of the aircraft carrier's large warships. As the saying goes, a good ship is small and a good turn. It is not so easy, especially in places where the waters are not very spacious. Therefore, the curved surface of the propeller must be accurately calculated and processed.
