Generally speaking, oxygen molecules affect the some properties. It affects the properties and strength of steel during steelmaking process, thus, molten steel must be deoxidized.
In order to remove oxygen, we add deoxidizers into molten steel. Frankly speaking, different deoxidizers have different purposes. We will introduce these below.
Aluminium Silicon Deoxidizer
Al deoxidizers: In the steelmaking field, Al is a common deoxidizer. The reason why it is used as deoxidizer is that it has a strong affinity with oxygen. And then, forming aluminum oxide. It is effective to reduce oxygen from steel.
Si deoxidizers: It is also used as deoxidizer. Peculiarly, for high quality steels, it is more proper than other deoxidizers.
Ferro Silicon Deoxidizer
FeSi deoxidizers: It is a silicon and iron mixture and used as deoxidizer in the steelmaking field usually. It can also assist to remove oxygen from molten steel with high silicon content.
Silicon Manganese Deoxidizer
As its name indicates, silicon manganese is an alloy and it is made of silicon and manganese. It is mainly used as deoxidizer and desulphurizer in the production process of steel due to its properties that helps to improve the quality of product and remove impurities. Besides, it can also improve the ductility and strength of steel. With the development of technology, it has become a necessary component in the modern steelmaking realm.
Calcium Silicon Deoxidizer
Calcium silicon is a compound of silicon and calcium. As we mentioned above, silicon manganese can be used as deoxidizer and desulphurizer, likewise, calcium silicon can be also used as deoxidizer and desulphurizer in steelmaking process. Besides, reagent is its another use during the production of certain types of alloys. Meantime, it can help to reduce impurities in the molten steel and improve the mechanical properties during refining process.
Conclusion
Generally speaking, every deoxidizers have their own characteristics. As for choosing which deoxidizer concretely, it depends on the situation. It has many factors for selecting deoxidizer such as desired properties of final product, type of steel being produced and so on.
