Metallurgiskt material 75% ferrosilicon

Ferrosilicon, an alloy composed of iron and silicon, is a remarkable material with a wide array of applications. Typically, it contains 15 - 90% silicon by weight, along with a significant proportion of iron silicides. This unique composition endows it with properties that make it invaluable in various industries.​

The production of ferrosilicon involves a complex process. It is made by reducing silica or sand with coke in the presence of iron, often sourced from scrap iron or millscale. For ferrosilicon with silicon content up to about 15%, blast furnaces lined with acid fire bricks are utilized. Higher - silicon - content ferrosilicons, on the other hand, are produced in electric arc furnaces. In the market, common formulations include ferrosilicons with 15%, 45%, 75%, and 90% silicon. Besides iron, the remaining about 2% consists of elements like aluminium and calcium. An excess of silica is used during production to prevent the formation of silicon carbide, and Microsilica erhålls som en användbar av - produkt .

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