What is calcium treatment?

Calcium treatment is to add calcium or calcium alloy to steel in different ways to improve steelmaking process, use for desulfurization, improve inclusion morphology, improve cutting performance, improve transverse mechanical properties along the rolling direction, and improve the flow properties of molten steel.

Why do Mn/Si>2.5 be required in the production of high quality carbon structural steel?

(1) improving the fluidity of continuous casting molten steel;

(2) in order to control the deoxidation product to a liquid state;

(3) Ensure that the oxygen content in the steel is low and does not cause bubble defects in the slab