Calcium silicon cored wire application

There are many types of alloy cored wire, but the most widely used one is calcium-silicon cored wire, and the number of people who know and understand calcium-silicon cored wire is also increasing. Calcium silicon cored wire is a very common alloy cored wire in steel smelting. This kind of cored wire can effectively avoid the addition of other impurities in the process of application. At the same time, this calcium silicon wire contains a lot of elements. During use, it can react with oxygen and other harmful elements in molten steel, and can effectively remove and purify molten steel. During the smelting and refining process of molten steel, a large number of oxides or deoxidized products will be generated. If these oxides are not removed, it will have a fatal impact on the internal quality of the steel. Therefore, calcium wire is fed into the molten steel, and the strong reducing property of Ca is used. The deoxidation product acts to reduce metal oxides in steel to form calcium oxides, or form low-melting compound compounds with other oxides that are easy to float in steel, that is, Ca oxides are denatured, thereby reducing oxides in steel and purifying molten steel , Improve the purity of steel. Solid silicon-calcium cored wire has the advantages of easy control and storage, stable treatment effect and lower treatment cost than other cored wires.
 
The cored wire is a linear material used in refining molten steel, which is made of strip steel sheets on the outer surface of the core powder layer. When in use, the cored wire is continuously fed into the ladle through the wire feeding machine. When the sheath of the cored wire in the ladle melts, the core powder layer leaks out and directly contacts with the molten steel for chemical reaction. Through the function of argon stirring, it can effectively achieve the purpose of deoxidation, desulfurization and removal of impurities, and can improve the quality and performance of steel. To sum up, two conditions are required for the cored wire to effectively purify molten steel. Respectively, the active ingredient in the core powder layer must be able to immerse into every corner of the molten steel; the active ingredient in the core powder layer has a large enough ability to extract oxygen and sulfur atoms. According to different usage conditions, the types of cored wires to be used are also different. The common ones are solid cored wire, metal cored wire, silicon-calcium wire, carbon wire, etc. These products have different characteristics. The application of silicon-calcium wire in steel smelting is also very extensive, and it has a good effect when used