蠕虫状石墨铸铁是近年来发展起来的一种新型铸铁材料,它兼有球铁较高的机械性能和灰铁良好的导热性和铸造性能。因此,越来越引起广大铸造工作者的重视,并已应用于钢锭模、液压件、气缸盖、排气管和机床等铸件上,取得了令人满意的效果。 The worm-like graphite cast iron is a new type of cast iron material developed in recent years. It combines the high mechanical properties of ductile iron with the good thermal conductivity and casting performance of gray iron. Therefore, more and more casting workers have drawn the attention, and has been applied to the ingot mold, hydraulic parts, cylinder heads, exhaust pipes and machine tools and other castings, and achieved satisfactory results.