In addition, in the steelmaking industry, the use of Calcium Silicon Alloy in the high-temperature combustion can emit a lot of heat this feature, often as a steel cap heating agent used to improve the quality and recovery of ingot.
(2) used as Inoculant and pelletizing agent in the cast iron industry. Cast iron is an important metal material in modern industry, it is cheaper than steel, melting smelting easily, has excellent casting performance and much better than steel, especially ductile iron, its mechanical properties reach or close to the mechanical properties of steel. The addition of a certain amount of ferrosilicon in cast iron can prevent the formation of carbides in iron, promote the precipitation and spheroidal graphite, so in nodular cast iron, Ferrosilicon is an important inoculant (helping to precipitate graphite) and a spherical chemical agent.
(3) used as reducing agent in iron. Not only is there a strong chemical affinity between silicon and oxygen, but the carbon content of high silicon ferrosilicon is very low. Therefore, high silicon ferrosilicon (or silicon alloy) is a kind of reducing agent used in ferroalloy industry when producing Low-carbon Ferroalloy.
(4) Other uses. The Calcium Silicon Alloy, which has been milled or atomized, can be used as suspension phase in the mineral processing industry. In the welding rod manufacturing can be used as a coating electrode. High silicon ferrosilicon can be used in the chemical industry to make products such as silicone.
In these uses, steelmaking industry, foundry industry and Ferroalloy industry are the largest users of Ferrosilicon. They consume about 90% of the ferrosilicon. In the various grades of Ferrosilicon, the current application of the most widely is 75% ferrosilicon. In the steelmaking industry, each production of 1t steel consumes 3-5kg75% ferrosilicon.