Using calcium-containing injection wire filled with electrolytic calcium in steel ladle treatment

Aluminum is one of the most common deoxidizers; when it used in melt, refractory inclusions alumina are formed. The presence these non-metallic negatively affects purity liquid steel, mechanical properties, makes casting difficult due to tightening steel-pouring fittings. modification with calcium promotes formation aluminates, which leads an acceleration their removal from metal a higher ascent rate. Having high affinity for sulfur, reduces its harmful effect by binding sulfides, reducing anisotropy steel properties during further rolling. For treatment calcium, injection wires calcium-containing filler used. As can be used: electrolytic silicocalcium, aluminum-tremic or ferrocalcium. paper describes results tests carried out on wire filled and silicocalcium. It shown that consumption using silicocalcium average 35 % comparison calcium. recovery rate different grades was evaluated designs filler. In this work, pourability analyzed. determining parameter, dependence change position tundish stopper rod content considered sample CCM. established shows more effective result wire.