The silicon calcium cored wire manufacturer introduces the operation process of the silicon calcium cored wire
Silicon calcium cored wire is one kind of alloy cored wire, which is mainly used as deoxidizer in steelmaking industry. Although, the silicon calcium cored wire in the market application range is very wide, the deoxidation effect has also won the approval of many users. However, many users only know the function and usage of the silicon calcium cored wire, but do not know the operation process of the silicon calcium wire at all. On the one hand, it is to repay the majority of users for their support over the years; on the other hand, it is to let more people have a more comprehensive and detailed understanding of the silicon calcium cored wire, and summarize and introduce the operation of the silicon calcium cored wire.
Liquid steel feeding line treatment can solve some problems that are difficult to be solved or not well solved by other processes at present. Deoxidation is a necessary work in the process of steelmaking. Since the carbon content of molten steel is much lower than that of molten iron, the oxidation tendency of molten steel is much greater than that of molten iron. It is impossible to obtain qualified steel casting without deoxidizing operation, even if steel is made by non-oxidation process. So it is very important to reduce the oxygen content in molten steel by deoxidizing operation.
The reaction between solid core pure calcium cored wire and molten steel is more intense than that of silicon calcium cored wire, so attention should be paid to the operation of calcium treatment, such as feeding depth and feeding speed. During line feeding operation, the solid core pure calcium cored wire must be fed deeply to prevent the natural evaporation of calcium due to the high vapor pressure of calcium. One method is to increase the iron sheet thickness to prevent premature melting affecting the release depth of calcium. The other method is to increase the feeding line velocity to increase the release depth of calcium. The higher feeding line velocity can make the solid core pure calcium line penetrate the slag layer and reach a certain depth, reduce the oxidation of Ca by slag, increase the absorption of calcium by molten steel, and improve the recovery of calcium.
