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Silicon Powder A Commonly Used Catalyst
- Jul 28, 2017 -

Silicon Powder A commonly used catalyst

Silica powder is a catalyst commonly used in industrial production, and its versatility plays an important role in steel production. With the development of industry, ferrosilicon powder in other industries have also been widely used, what is the use of its characteristics?

Ferrosilicon is made of ferrosilicon, and can be based on the needs of users, grinding out the size of different sizes of ferrosilicon powder, and the main component is silicon and iron. As the ferrosilicon ferrosilicon powder composition is the same, so the role of ferrosilicon is almost the same. Ferrosilicon powder can be used in the steel industry, as a deoxidizer and alloying agent. Adding a certain amount of silicon to the steel can significantly improve the strength, hardness and elasticity of the steel.

 In the cast iron industry, ferrosilicon powder used as inoculant darnizer, in the cast iron by adding a certain amount of ferrosilicon can prevent the formation of carbide in the iron to promote the precipitation of graphite and spheroidization, and thus in the production of ductile iron, ferrosilicon Is an important inoculant and spheant. Milled or atomized treated ferrosilicon powder can be used as a suspension phase in the dressing industry.

    In the process of smelting with carbon powder, ferrosilicon powder, calcium carbide diffusion and deoxidation and adding ferrosilicon, ferromanganese and other comprehensive deoxidation, the steel should also be inserted into the molten steel before the final deoxidation, the purpose is to further oxygen in the molten steel Off, because the deoxidation capacity of aluminum than the deoxidizer is more intense. At this time because the oxygen content of molten steel is very small, so the amount of aluminum oxide inclusions generated very little. There is no harm to the quality of steel, and can play the role of fine grain, so that the impact toughness of steel to improve and reduce the tendency of steel hardening. So before the steel should be based on different types of steel by adding a different amount of aluminum for the final deoxidation.

   Silica powder is made of ferrosilicon and can be used as a deoxidizer, alloying agent, reducing agent, inoculant and nodularizer in steelmaking and ironmaking. It occupies a very important position. In fact, we know that ferrosilicon production is based on natural silica as raw material, the use of metallurgical Jiaozuo reductant and with a certain amount of iron in the mineral heating furnace smelting. Smelting the ferrosilicon process is as follows:

    Now the production of ferrosilicon in the iron content are carbon steel scrap, the addition of less than the amount of silica and coke, with the steel particle size is difficult to guarantee, and thus inevitably lead to the distribution of steel in the furnace Uneven, causing the furnace resistance value distribution is uneven and frequent fluctuations, it is difficult to stabilize the electrode and alloy composition of the same.

    It is required that the iron oxide and the coke particles are mixed uniformly to ensure their close contact, thus ensuring that the iron oxide is reduced at the early stage of the silica in the silica, thereby avoiding the reaction of the iron oxide with the silica in the silica The low melting point of the ferric silicate melt, to maintain the melt should have the high temperature, to avoid the iron oxide material is easy to replace the molten steel to reduce the melt temperature defects.

 A method for producing smelting ferrosilicon, which comprises the steps of selecting and smelting the raw material of the raw material, characterized in that the metal material used for the raw material is all the iron oxide material and the preparation method of the raw material.