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The iron alloy composed of iron and silicon is the main product of ferrosilicon manufacturers. It can be used as a deoxidizer, alloying agent and denaturant for steelmaking. In order to allow more people to understand ferrosilicon more comprehensively, our company will share some basic information about ferrosilicon with you.
In the slow cooling process of liquid ferrosilicon, the silicon-rich portion with small density floats up, and the ferric silicide with large density sinks, causing segregation of ferrosilicon components. In order to reduce the segregation of ferrosilicon ingots, it is necessary to reduce the ferrosilicon casting temperature, control the thickness of the ingots, or layer casting and accelerate the cooling rate of the ingots. Most of the impurities in ferrosilicon gather in the grain boundary in the form of phosphide and arsenide. When the moisture in the air penetrates into the cracks in the iron ingot, it reacts with the phosphide and arsenide accumulated in the grain boundary to generate toxic PH3 and AsH3 gas, which completely destroys the grain boundary, and it is also silicon iron powder Another factor.
The ferrosilicon production equipment is a submerged arc reduction electric furnace. The silicon content of ferrosilicon is controlled by the dosing amount of iron raw materials. In addition to using pure silica and reducing agents for the production of high-purity ferrosilicon, refining outside the furnace is also required to reduce impurities such as aluminum, calcium, and carbon in the alloy. Ferrosilicon manufacturers welcome new and old customers to contact us. In addition to our company's ability to recommend and provide a variety of reliable ferrosilicons, we can also answer your questions and provide more information about ferrosilicon.
