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Ferroalloy is a general term for alloys composed of iron and silicon, manganese, chromium, titanium, tungsten, molybdenum, tantalum, niobium and other elements. It cannot be used to cast parts directly, but only as a reducing agent or additive in the casting or steelmaking process. Ferro alloys commonly used in casting are ferro tungsten, ferromolybdenum, ferrovanadium, ferroniobium,ferrosilicon and ferromanganese. Ferroalloy is one of the essential raw materials in iron and steel industry and casting industry. Its main uses: one is as a deoxidizer, remove excess oxygen in liquid steel; The other is as alloying element additive to improve the quality and performance of steel. HSG ferroalloy company offers a good ferro alloys price. Contact us and bulk ferro alloys!
There are many production methods of ferroalloys, most of which are produced by pyrometallurgy. According to the smelting equipment used, operation method and heat source, it is mainly divided into the following categories:
According to the refractory metal suppliers production equipment, it can be divided into blast furnace method, electric furnace method, out-of-furnace method, converter method and vacuum resistance furnace method.
According to the different heat sources, it is divided into carbothermal method, electrothermal method, electrosilicon thermal method and metal thermal method.
According to the different production and operation process characteristics, it is divided into flux method, solvent-free method, slag-free method, slag-containing method and continuous and batch smelting methods.
Ferromanganese and ferrosilicon are the most widely used deoxidizers in steelmaking. Strong deoxidizers are aluminum (aluminum iron), calcium silicon, silicon zirconium, etc. (see deoxygenation of steel).
The common varieties used as alloy additives are: ferromanganese, ferrochrome, ferrosilicon, ferrotungsten, ferromolybdenum, ferrovanadium, ferrotitanium, nickel-iron, niobium (tantalum) iron, rare earth iron alloy, ferroboron, ferrophosphorus, etc.
Ferroalloys are added into molten iron before casting to improve the crystalline structure of cast iron. In addition, it is also used as a reducing agent for the production of other ferroalloys and non-ferrous metals by metal thermal reduction. Alloy additives for non-ferrous alloys; Small amounts are also used in the chemical industry and other industries.
