Abstract The current research of nuclear control rod drive mechanism (CRDM) movable latch only makes a simple measurement of wear mass. The wear volume and difference in various claw surfaces are ignored and the degradation mechanism of each claw surface is not clear. In this paper. a detailed degradation analysis was carried out on each claw surface of movable latch combined with wea... https://fitnessgravesyardes.shop/product-category/leveler-foot/