Silicon carbon alloy is a new type of alloy used in converter, which can replace ferro silicon, silicon carbide, carburizing agent, reduce the amount of deoxidizing agent, and is used in converter smelting deoxidizing alloying process. Silicon carbon alloy block is a kind of deoxidized alloy in converter smelting, the effect is stable, and the chemical composition, mechanical properties and internal control quality of steel are better than the traditional process.
The experiment and production practice show that the use of silicon carbon alloy in the converter deoxidizing alloy process can greatly reduce the cost of steelmaking per ton of steel, create considerable economic benefits, and improve the market competitive advantage of steel. Usage: Manual direct input or automatic addition to the bottom of the ladle through the bin chute: such as refining can also be added directly in the refining process. Different indexes and amounts of addition are selected according to different steel grades. (The carbon content can be adjusted according to different steel grades to meet the needs of different steel grades).
Silicon carbon alloy features:
Silicon carbon alloy has stable properties. It can improve the quality of molten steel, improve the quality of products, improve the new energy of products, reduce the amount of alloy added, reduce the cost of steelmaking, and increase economic benefits. For a long time, the converter alloy has not been adjusted, the traditional alloy variety structure is relatively simple, that is, Q195, Q235 steel using Mnsi+FeSi+SiAiCaBa+Sic+ carburizer process, HRB335, HRB400 steel using MnSi+Fesi+AiSi+ carburizer production process. The traditional silicon manganese alloy, ferro silicon resources are increasingly tight, and the market price is rising all the way, making the cost of converter steelmaking gradually increase, reducing the profit space of steel, and the recovery rate of traditional alloy is greatly affected by the converter operation, the steel output, the end temperature and the amount of slag make the alloy composition of the finished product fluctuate greatly. The chemical composition of the smelting steel is unstable, and the qualified rate of the internal control index of the finished product is low.
It can be seen from the use of silicon carbon alloy in the replacement of some alloys have great advantages, steel mills demand for silicon carbon alloy is also increasing, so silicon carbon alloy prospects are promising. The optimization of silicon carbon alloy variety structure is conducive to the reduction of production costs. Improve the quality of molten steel. Reduce the amount of alloy added and adjust the main alloy.
The main components of silicon carbon alloy
Silicon carbon alloy is a kind of alloy material composed of silicon, carbon and a small amount of aluminum, calcium, iron and other elements. Among them, the silicon content is usually 50% to 70%, and the carbon content is usually 10% to 30%. The higher the silicon content, the wider the application range of silicon carbon alloy, but also the higher the price of the alloy. Silicon carbon alloy also contains some trace impurities, such as manganese, phosphorus, sulfur and so on. The content of these elements has a certain influence on the quality and properties of silicon carbon alloy.
Application of silicon carbon alloy
Silicon carbon alloy is widely used in metallurgy, chemical industry, electronics, aviation and other fields. It mainly includes the following aspects:
In short, silicon carbon alloy is an important alloy material and has a wide range of application prospects. In the future development, the research and development and application of silicon carbon alloy will be more extensive.
In the production of stainless steel by KOBMS converter, a certain amount of reducing agent needs to be added after the beginning of the reduction period to reduce the metal oxides entering the slag during the oxygen blowing smelting period. The deoxidation reduction method of converter smelting stainless steel is to use ferro silicon or ferro silicon plus aluminum as reducing agent. Silicon-carbon alloy has a strong reduction capacity, and the price of ferro silicon is high, which correspondingly increases the manufacturing cost of stainless steel. In order to overcome the above shortcomings of the existing deoxidation reduction method of stainless steel smelting by converter, silicon carbon alloy is a low cost deoxidation reduction method of stainless steel smelting by converter.
Types of silicon carbon alloys
Silicon carbon alloy is divided into silicon carbon alloy block, silicon carbon alloy ball
Silicon carbon alloy block is a converter alloy that can replace ferro silicon, silicon carbide, carburizer, and a small amount of deoxidizer. Silicon carbon alloy block as a converter smelting deoxidized alloy, the effect is stable, the chemical composition of steel, mechanical properties, internal control quality are better than the traditional process. In addition, silicon carbon alloy blocks can improve the quality of molten steel, improve product quality, reduce the amount of alloy added, reduce steelmaking costs, and increase economic benefits.
Silicon carbon alloy balls are an additive used in the steelmaking process. In the process of metal refining, if an appropriate amount of silicon carbon alloy balls are added, the properties of the metal can be changed, such as steel and iron, the elements in steel and iron are mainly iron, because of the different carbon content, it can affect the physical properties of steel to change, the hardness of steel is obviously harder than iron, and the capriciousness of steel will also decline, so in cast iron, It is necessary to add a proper amount of silicon carbon alloy balls in the process of steelmaking.
Production and manufacturing process of silicon carbon alloy
Silicon carbon alloy is an important alloy material, which is composed of silicon and carbon. The following is an introduction to the production and manufacturing process of silicon carbon alloy:
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