PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

摘要

A process for producing a semi-solidified slurry of an iron alloy which comprises pouring a melt of the iron alloy into a semi-solidified-slurry production vessel (30) and cooling the melt to obtain a semi-solidified slurry comprising a crystallized solid phase and a residual liquid phase, wherein a hypoeutectic cast iron composition is used as the material. The melt is poured in a given amount each time into the semi-solidified-slurry production vessel (30). The temperature of the melt which has been poured into the semi-solidified-slurry production vessel (30) is regulated so as to be not lower than the crystallization initiation temperature for the composition and be not higher than the temperature which is higher by 50°C than the crystallization initiation temperature. The rate of cooling the melt poured in the semi-solidified-slurry production vessel (30) is regulated to 20 °C/min or lower.