The silicon element in the silicon sphere plays an important role in steel. First of all, silicon can improve the heat resistance of steel, so that the melting point of steel is increased, thermal expansion resistance is stronger, better heat resistance; Secondly, silicon can improve the oxidation resistance of steel, so that steel has good corrosion resistance, which is more conducive to the service life of steel; In addition, silicon can also improve the ductility and toughness of steel, so that it has better tensile strain strength and fracture elongation, which is more conducive to the workability of steel.