Casting process control of ductile iron

- Nov 25, 2019-

Pouring should be based on the principle of fast pouring and smooth injection. In order to improve the uniformity of instantaneous gestation and prevent the slag from entering the cavity, the total capacity of the sump should be equivalent to the gross weight of the casting. When pouring, the inoculant is placed in the sump, and the molten iron is completely injected into the nozzle at one time to make the molten iron and the inoculant. Mix thoroughly, remove the surface scum, and propose a water plugging.