Application Of Si-Ca in Ferroalloy Industry

Apr 12, 2022

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Silicon calcium can also be called silicon calcium alloy, is a kind of alloy composed of silicon calcium, iron is also a main component, generally used in the steel industry, because this is a very good desulfurization, deoxidizer, the effect is very good, so the utilization rate has become very high, In general, it is very common in the production of low carbon steel and stainless steel. And suitable for the bof steel training workshop used as heating agent; It can also be used as inoculant of cast iron and additive of nodular cast iron production.


Both calcium and silicon have a strong affinity for oxygen. Calcium, in particular, has a strong affinity not only for oxygen, but also for sulfur and nitrogen. So si-Ca alloy is an ideal compound gelling agent and desulfurizer. Silicon alloy not only has strong deoxidation ability, deoxidation products are easy to float, easy to discharge, but also can improve the performance of steel, improve the plasticity, impact toughness and fluidity of steel. At present silicon - calcium alloy can replace aluminum for final deoxidation.


(1) Si-Ca alloy is an ideal compound deoxidizer. Both calcium and silicon desulfurizers have strong affinity for oxygen. Calcium, in particular, has a strong affinity not only for oxygen, but also for sulfur and nitrogen. Silicon alloy not only has strong deoxidation ability, deoxidation products are easy to float, easy to discharge.


(2) Si-Ca alloy can also be used as inoculant of cast iron and additive in nodular cast iron production.


(3) Silicon calcium alloy can be deoxidized instead of aluminum, because it can not only deoxidize but also change the performance of steel, including the toughness, plasticity and fluidity of steel, is a very ideal deoxidizing material. It can also be used as a heating agent in some environments, so it is not surprising that si-Ca alloys are now widely used, because their effects can achieve the desired state.


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