Research on Plastic Inclusions Control for Steel Cord

The inclusions will be controlled in the plastic region effectively when the slag basicity is in the range of 0.5 similar to 1.2 and Al2O3 content in the range of 10%similar to 25% according to thermodynamic calculation. The results of laboratory research show that the value of (CaO+MgO)/SiO2 and Al2O3 content will rise up with the increase of [Als]. Therefore, [Als] should be less than 6x10(-6). Furthermore, inclusions in steel cord will be controlled plastically in laboratory with the slag basicity in the range of 0.8-1.0 and Al2O3 content in the range of 0%similar to 10%.