蠕铁是七十年代发展起来的新型铸铁材料。近几年来随着引进项目产品的试制及定型生产,蠕铁在船舶工业中的应用也日益广泛。如蠕铁柴油机汽缸盖、增压器进排气壳体、汽缸套等主要零部件。蠕铁的金相组织是上述产品检验的重要 Vermicular iron is a new type of cast iron material developed in the seventies. In recent years, with the introduction of trial production of project products and stereotyped production, the application of vermicular iron in shipbuilding industry is also increasingly widespread. Such as vermicular iron cylinder head, turbocharger into the exhaust shell, cylinder sleeve and other major components. Vermicular iron microstructure is the importance of the above product testing