蠕墨铸铁的石墨形状是分叉和两端钝化的蠕虫状。这种铸铁的导热性比球墨铸铁好,与普通灰铸铁相近。强度、塑性及弹性与球墨铸铁接近。同时,蠕墨铸铁的体积收缩和线收缩与普通灰铸铁差不多,因而提供了利用现有铸造设备生产的可能性。 The graphite shape of vermicular graphite iron is bifurcated and worm-shaped at both ends. The thermal conductivity of cast iron than ductile iron is good, and ordinary gray cast iron is similar. Strength, ductility and elasticity are close to ductile iron. At the same time, the volume shrinkage and shrinkage of vermicular cast iron are comparable to those of ordinary gray cast iron, thus offering the possibility of making use of existing foundry equipment.