Ferro silicon is classified into four types according to smelting methods: high silicon silicon (GG), ordinary silicon (PG), low aluminum silicon (DL), and high-purity silicon (GC). High purity ferrosilicon refers to ferro silicon with low impurity element content produced by external refining method.
The production of 75% silicon iron is made from natural silica as raw material, using metallurgical coke as a reducing agent and adding a certain amount of iron containing material for smelting in a mineral thermal electric furnace. The iron containing materials currently used in the production of 75 silicon iron are all carbon steel shavings, which are added in smaller amounts than silica and coke. In addition, the particle size of the steel shavings is difficult to ensure, which inevitably results in uneven distribution of steel shavings in the furnace, causing uneven and frequent fluctuations in the resistance value distribution inside the furnace, and making it difficult to stabilize the consistency of electrode and alloy composition.
75 silicon iron is used as a deoxidizer and alloying agent in the steelmaking industry. In order to obtain steel with qualified chemical composition and ensure its quality, deoxidation must be carried out in the later stage of steelmaking. The chemical affinity between silicon and oxygen is high, so ferro silicon is a strong deoxidizer for precipitation and diffusion deoxidation in steelmaking.
75 silicon iron is used as an inoculant and spheroidizer in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easier to melt and smelt, and has excellent casting performance and much better seismic resistance than steel.
Especially ductile iron, its mechanical properties reach or approach those of steel. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in iron, promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferrosilicon is an important inoculant (helping to precipitate graphite) and spheroidizing agent.
Henan Tiesheng Alloy New Materials Co., Ltd. is a professional manufacturer and supplier of alloy products such as inoculants, carburizers, alloy core wires, silicon carbide, silicon carbon alloys, slag removers, etc. The company has nearly 20 years of experience in the production and sales of ferroalloys, and its ferroalloy products are sold all over the world; The cooperative companies include major steel manufacturers, etc. The company’s products have passed ISO quality system certification. If you have any product requirements, please contact Henan Tiesheng Alloy New Materials Co., Ltd.
