Characteristics of silicon calcium cored wire
There are many kinds of cored wires, but the silicon calcium cored wires are widely used, and the people who know and understand the silicon calcium cored wires are also increasing. As a cored wire manufacturer, our company can not only recommend and provide different types of cored wire according to the needs of users, but also, through summarizing the understanding of cored wire for many years, explain cored wire for you in detail to help you understand the silicon calcium cored wire.
Cored wire is a linear material used in refining liquid steel. It is composed of a core powder layer and a wrapper made of strip steel sheet wrapped on the surface of the core powder layer. When use, through the wire feed machine package core continuously into the ladle, when the conductor into the ladle bag after melting, the cover of the bare core powder layer in direct contact with molten steel chemical reaction, and through the dynamics of argon stirring effect, so it can effectively achieve the purpose of deoxidization, desulphurization and removing inclusions, in order to improve the quality and performance of steel. It can be seen that in order to effectively purify molten steel by cored wire, two conditions must be met: the active ingredients in the powder layer must be able to immerse into every corner of molten steel; The active ingredient in the core powder layer has a large enough capacity to grab oxygen and sulfur atoms.
The calcium in calcium silicon packet core powder is a kind of commonly used core materials, although it is a kind of deoxidizer, but because of their relatively light, with a relatively low melting point, and prone to bubbles at high temperatures, so only with metal calcium powder layer will appear as a package of core core package conductor has just been sent in the refining furnace began burning phenomenon, and packet core into less than steel in the middle of the following, It can not achieve the ideal purification effect, and the combustion of the core powder layer can not achieve the ideal purification effect under such conditions, but also cause the waste of calcium resources with high price.
