Abstract
The floatation of oxide inclusions in static liquid iron was studied using the complex deoxidizez, calcium-silicide.
The obtained results are as follows;
1) At the initial stage of reaction, oxygen content in liquid iron decreases rapidly, but at the next stage of reaction decreases slowly, when the melt was deoxidized by calcium-silicide addition.
2) Deoxidation products become large during short time but the rate of floatation of fine particles are so slow that the cleanliness of liquid iron is not good.
3) The rate of floatation of large oxide particler is greates than that of deoxidation products by metallic silicon.
