The ferrosilicon is made of silica, steel and coke. The silicon reduced by 1500-1800 degrees is melted in the molten iron to form a ferrosilicon alloy. It is an important alloy variety in the smelting industry.
The use of ferrosilicon:
(1) Used as a deoxidizer and alloying agent in the steel making industry. It is especially suitable for the deoxidation requirements of continuous casting steel. It has been proved that ferrosilicon not only meets the deoxidation requirements of steelmaking, but also has the advantages of desulfurization performance, large specific gravity and strong penetrating power.
(2) Used as an inoculant and spheroidizing agent in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easy to melt and smelt, has excellent casting properties and much better seismic resistance than steel. In particular, ductile iron has mechanical properties that are at or near the mechanical properties of steel. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in iron and promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferrosilicon is an important inoculant (helping to precipitate graphite) and spheroidizing agent. .
(3) Used as a reducing agent in the production of ferroalloys. Not only is the chemical affinity between silicon and oxygen high, but the high silicon ferrosilicon has a very low carbon content. Therefore, high silicon ferrosilicon (or siliceous alloy) is a commonly used reducing agent in the production of low carbon iron alloys in the iron alloy industry.
(4) 75 ferrosilicon is often used in the high-temperature smelting process of magnesium metal in magnesium smelting process. The magnesium in CaO.MgO is replaced. Each ton of metal magnesium is produced and consumes about 1.2 tons of ferrosilicon. Play a big role.
Particle size: natural block, processing block (10-50mm/50-100mm), granular (1-3mm/3-8mm/8-15mm)
Powder (0.1-0.5mm 0.2-0.7mm 20-425 mesh)
Product packaging: can be packaged according to customer requirements. Commonly used packaging is 20kg/bag, 25kg/bag, 100kg/bag, 1000kg/bag, ton bags can be wrapped around the membrane, and trays can be added.
The specific specifications are as follows:
Grade | Chemical Composition |
| Si | Al | P | S | C |
| ≤ |
Fesi 75 | 75 | 1.5 | 0.04 | 0.02 | 0.2 |
Fesi 72 | 72 | 2 | 0.04 | 0.02 | 0.2 |
Fesi 70 | 70 | 2 | 0.04 | 0.02 | 0.2 |
Fesi 65 | 65 | 2 | 0.04 | 0.02 | 0.2 |
Fesi 60 | 60 | 2 | 0.05 | 0.03 | 0.3 |
Fesi 45 | 45 | 2 | 0.04 | 0.02 | 0.2 |
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