In fact, ferrosilicon powder is a common deoxidizer in the metallurgical industry. It is used in a large proportion in the steelmaking industry. Only by understanding the knowledge of ferrosilicon powder can we apply it better. Then, the deoxidizer of ferrosilicon powder is very important in smelting. What is its role in the industry? Let’s briefly introduce it to you.
The oxygen in the molten steel is mainly added to remove impurities such as silicon, manganese, phosphorus, and carbon in the molten steel. At the same time, the oxygen is injected to obtain higher reaction efficiency. Therefore, at the end of smelting, the molten steel is in “Transitional oxidation” state. Effect of oxygen on steel properties: Oxygen is one of the elements with a serious segregation tendency during the solidification process of steel. During the solidification and subsequent cooling process of molten steel, the solubility of oxygen drops sharply. Most of the oxygen originally dissolved in the steel is Fine inclusions such as iron oxides and sulfur oxides are concentrated at the γ or α grain boundaries. These fine inclusions can cause grain boundary embrittlement and easily become the starting point of grain boundary cracking during the processing and use of steel. , causing brittle failure of the steel.
