Foundry Technology Improvement of High Strength Nodular Iron Casting

This paper analyzed the structure of high strength nodular iron planetary carrier casting and the shrinkage of casting in foundry production,adopted proprotional solidification theory,simulated solidification of casting with Huazhu CAE software,optimized and improved foundry technology as per simulation.Eligible castings were produced by using electric furnace melting and nodularizing treatment with first inoculation and second melt stream inoculation that eliminated the formation of casting shrinkage.It was proved that the improved foundry technology could reduce production cost and casting defects and raise the productivity.