Study on the Melting Process of Heavy Ductile Iron Flywheel
Author of the article:XIE Xiangxu;GONG Xianhui;ZHANG Tao
Author's Workplace：Shaanxi Diesel Engine Heavy Industry Co.,Ltd.,Xingping 713100,China
Key Words：carbon equivalent graphite floating ductile Iron
Abstract：Medium speed diesel engine flywheel has a thickness of 297 mm,and belongs to thick nodular iron castings.In the initial trial production stage,there is serious graphite flotation defect on the upper surface of the castings,in order to solve the problem,carbon equivalent is reduced from 4.57%to 4.32%.after this improvement graphite flotation has been eliminated and good microstructure and properties are obtained.
