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Ferrosilicon

Ferrosilicon is made from coke, steel scraps, and quartz (or silica) smelted in an electric furnace. Since silicon and oxygen are easily synthesized into silicon dioxide, ferrosilicon is often used as deoxidizer in steelmaking.

Silicomanganese

Silicomanganese, composed of manganese, silicon, iron and a small amount of carbon and other elements, is a kind of ferroalloy with wide use and large output.

Ferromanganese

Ferromanganese is the most used deoxidizer and alloying material in the steelmaking industry. It is smelted from manganese ores in blast furnaces and electric furnaces.

Silicon metal

Silicon metal, also known as industrial silicon or crystalline silicon, is an excellent antioxidant widely used in refractory and powder metallurgy industries. Silicon metal added in the refractory can first react with oxygen to form new ore-phase closed porosity, increasing the density and preventing the penetration of slag iron, so as to improve the product's resistance to high temperature, abrasion and oxidation.

Fluorite

Calcium fluoride (chemical formula: CaF2) is an inorganic compound that is colorless crystal or white powder. It is insoluble in water and slightly soluble in mineral acid. It reacts with hot concentrated sulfuric acid to produce hydrofluoric acid. In general, calcium fluoride is prepared by reacting calcium carbonate with hydrofluoric acid or repeatedly treating fluorite powder with concentrated hydrochloric acid or hydrofluoric acid. Natural calcium fluoride minerals, a kind of fluorite, are gray, yellow, green and purple, and sometimes colorless and transparent. They are glassy, brittle and fluorescently visible. Very pure fluorite is used to make special lenses. Fluorite is mainly used as a flux for smelting metals.

Inoculant

Inoculation is to add a small number of other substances to the liquid metal during solidification to promote nucleation, inhibit growth and refine grain. Traditionally, the addition of additives to cast iron is called inoculation, and the addition of additives to non-ferrous alloys is called modification. In essence, inoculation mainly affects nucleation and promotes grain dissociation, while modification changes the growth mechanism of the grain (inhibits the growth), thus affecting the morphology of the grain.

Silicocalcium

Silicocalcium is a composite alloy made of silicon, calcium and iron. It is an efficient complex deoxidizer and desulfurizer and has been widely used in the production of high-grade steel, low-carbon steel, stainless steel, as well as special alloys such as nickel-based alloy and titanium-based alloy. It can also be used as the warming agent in converter steel making, the inoculant of cast iron, and the additive in the production of nodular cast iron.

Electrolytic manganese metal

Electrolytic manganese metal refers to the elemental metal obtained by the electrolysis of manganese salt in the electrolytic cell which is from the acid leaching of manganese ore. It looks like iron from the appearance. In the shape of irregular flakes, it is solid and brittle, shiny on one side and rough on the other side. Its color ranges from silvery white to brown and becomes silvery gray after it is processed into powder. It is easy to oxidize in the air, dissolve and generate hydrogen when exposed to dilute acid. Besides, it can also decompose water and release hydrogen when the temperature is slightly higher than room temperature.

Silicon-carbon alloy (high-carbon silicon)

Silicon-carbon alloy is a new type of alloy used for converters. It can replace ferrosilicon, silicon carbide and recarburizer to reduce the amount of deoxidizer and is used in deoxidation alloying process in converters with stable effect. The chemical composition, mechanical properties and internal quality of steel made in this way are better than those of steel made in traditional way. It can enhance the quality of molten steel, improve product quality and performance, reduce the amount of alloy added, lower steelmaking costs, and increase economic benefits.