An erosion resistant article such as rotor blades for helicopters and wind turbines having the leading edge surface protected from damage from high speed impingement of rain or sand with a protective coating formed from specific polyurethane or polyurea coating having a defined set of minimum physical properties where the protective coating can be applied as a liquid coating and cured in place or as a preformed complementary shaped covering to protect the leading edge against erosion damage in service.
一种抗侵蚀物品,如直升机和风力涡轮机的转子叶片,其前缘表面具有由特定聚
氨酯或聚
脲涂层形成的保护涂层,可防止雨
水或沙粒高速撞击造成的损坏,该涂层具有一组确定的最小物理性能,保护涂层可作为液体涂层涂抹并就地固化,或作为预成型的互补形状覆盖层,以防止前缘在使用中受到侵蚀损坏。