大中型离心浇铸缸套在正常服役过程中,主要损伤类型是缸套内表面的磨损以及缸套外表面(水套内)的穴蚀。但是,在生产中,由于大中型离心浇铸工艺自身的结晶特点以及工艺参数控制不当,往往使缸套产生一些异常的结晶和显微组织,形成化学成份的偏析和金相组织的不均匀。在加工和服役过程中。这种成份偏析和异常组织将会降 Large and medium-sized centrifugal casting liner In the course of normal service, the main type of damage is the inner surface of the cylinder liner wear and the outer surface of the liner (water jacket) cavitation. However, in the production, large and medium-sized centrifugal casting process due to its own crystallization characteristics and process parameters are not properly controlled, often make the cylinder liner to produce some abnormal crystallization and microstructure, the formation of chemical composition segregation and microstructure heterogeneity. In processing and service process. This segregation of components and abnormal tissue will be reduced