The main use of ferroalloy

Regard steel-making as deoxidizer, application is the widest is silicon manganese, ferromanganese and ferrosilicon. Intense deoxidizer is aluminium (aluminous iron) , zirconium of silicon calcium, silicon (the to oxigenate that sees steel reacts) . Use as the commonly used breed of alloy additive has: Iron of iron of ferromanganese, ferrochrome, ferrosilicon, ferrotungsten, molybdenum, vanadium iron, titanium, ferronickel, niobium (tantalum) ferroalloy of iron, rare earth, boracic iron, phosphor iron. All sorts of ferroalloy need according to steel-making again, press alloying element content or contain carbolic discretion to provide a lot of order and degree, matter content of strict limit. Contain two kinds or the ferroalloy of a variety of alloying element is called compound ferroalloy, use this kind of ferroalloy to be able to join deoxidization or alloy to change an element at the same time, advantageous to steel-making craft, and can relatively economy uses accrete ore resource integratedly reasonably. Have commonly usedly: Calcium of manganese of aluminium of manganese of zirconium of calcium of manganese silicon, silicon, silicon, silicon, silicon and rare earth ferrosilicon.

Steel-making has chromium of manganese of aluminous, titanium, nickel and metallic silicon, metal, metal to wait with pure metal additive. Certain easy reductive oxide is like MoO, NiO, also use at replacing ferroalloy. In addition, still nitrogen changes ferroalloy, if pass nitrogen to change the ferrochrome of processing, ferromanganese to wait, and mix the calorific ferroalloy that has exothermic mixture to wait.

The development direction of our country ferroalloy | | ### | | ### | | ###
Industry of ferroalloy of prospective our country wants exert oneself change to develop way, control gross dimensions, fall into disuse backward produce can, raise integral equipment level; Optimize industrial position and resource configuration, raise an industry to be spent centrally; Carry out " go " the strategy, enhance international competition ability, industry of ferroalloy of implementation our country can grow continuously in the round.

Fall into disuse energetically backward produce can, strict control builds a project. Current, our country ferroalloy produces equipment 6300 dry volt-ampere and place of the following electric stove hold proportion bigger, should lag behind through falling into disuse produce can, control builds a project, whole raises the engineering technology of electric stove of our country ferroalloy and equipment level.

In the light of ferroalloy industry existence produces can surplus problem badly, sectional Ying Conghong watchs adjusting control and microcosmic processing related the country two respects begin, examine and approve ferroalloy strictly to build a project, control gross, put an end to low-level repeat construction.

Reasonable configuration resource, the sources of energy, expand circular economy energetically. In expanding economy of ferroalloy industry circulation energetically, want to accomplish the following: It is to be effective and integrated use resource of manganese mine, chromic mine, raise resource, the sources of energy to use efficiency, practice law of fire of executive manganese mine warm-up of rich collect and dephosphorization, ore and beforehand the engineering technology of powdery mine agglomeration such as group of reductive processing, agglomeration, ball. 2 it is to optimize homebred lean ore deserves to compare with what import rich ore, raise furnace ore grade, ensure index of specific power consumption of product of manganese department, chromic department is mixed advocate the element reclaims rate reach certain level. 3 it is the gas, slag that half-and-half closes and whole sealing electric stove reclaims and soot undertake be used integratedly and be usinged circularly. 4 it is with industry of upriver coal, cable catenary is ligament, establish " coal, report, smelt metal " the ferroalloy industry group of unifinication, expand circular economy energetically.

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