Ferroalloy made up of iron and silicon is the main product of ferrosilicon manufacturers.It can be used as steelmaking deoxidizer,alloy agent and denaturant.In order to let more people,more comprehensive understanding of ferrosilicon,our company to share with you some basic information about ferrosilicon.In the slow cooling process of liquid ferrosilicon,the dense silicon-rich parts float up,while the dense ferrosilicon sinks,resulting in segregation of ferrosilicon components.In order to reduce segregation of ferrosilicon ingots,it is necessary to reduce the casting temperature,control the thickness of ingots,or layer casting and accelerate the cooling rate of ingots.Most of the impurities in ferrosilicon concentrate in the form of phosphates and arsenide at grain boundaries.When the moisture in the air penetrates into the cracks in the iron ingot,it reacts with phosphates and arsenides that accumulate in the grain boundary to form toxic PH3 and AsH3 gases,which completely destroy the grain boundary and is also another factor in silication of ferrosilicon.