In response to the high wear problem of electrode extrusion in new energy batteries, the all metal ceramic cylinder liner developed by Nanjing Zhitian has achieved large-scale production. It uses nickel based tungsten carbide alloy and laser cladding technology to form a 2mm thick wear-resistant layer on the inner wall of the cylinder, with a hardness of HRC65 or above. This liner performs outstandingly in wet electrode extrusion production lines, and can withstand long-term erosion of wear-resistant materials such as carbon nanotubes and ceramic powder. Its service life is extended by 200% compared to traditional alloy liners.
Behind the technological breakthrough lies process innovation: by using cold isostatic pressing (CIP) and vacuum sintering technology, the industry pain point of weak bonding between the cladding layer and the substrate has been solved. After 1000 hours of continuous operation testing, the wear on the inner wall of the liner is only 0.03mm. Currently, this product has been supplied to leading battery companies such as CATL and BYD, and the continuous operation cycle of the supporting extrusion production line has been extended from 15 days to 45 days, reducing equipment maintenance costs by 65%. Industry predictions suggest that the market size of battery specific extruder liners will exceed 1.2 billion yuan by 2026, with metal ceramic materials accounting for over 70%.