The main raw material of silicon calcium cored wire is silicon calcium powder, which is used as the core material. The outer skin is steel skin, which is pressed by the wire pressing machine. It can purify the form of steel inclusions, improve the castability of molten steel, improve the service performance of steel, and significantly increase the recovery rate of alloy, reduce the consumption of alloy, and reduce the cost of steelmaking, with good economic benefit.
The method of use is to insert cored wire into liquid iron or liquid steel vertically through the feeding machine of the manufacturer. The metallurgical materials such as cored wire will be fully melted and produce chemical reaction at the ideal depth, which effectively avoids the reaction of adding elements with air and slag, and improves the absorption rate of metallurgical materials of the manufacturer. Hello linear velocity and feeding line rhythm is key parameters of the calcium silicon line feed line process, feed speed and rhythm is too fast or too slow will affect the real core is pure calcium wire melting time and degree of oxidation of the metallurgical effect affected, the operator must pay strict attention to molten steel case, once appear, steel rolling, must continue to feed line, after a short pause to prevent spillage. Wire feeding speed and wire feeding rhythm are the key parameters of silicon calcium wire feeding process. Too fast or too slow wire feeding speed and rhythm will affect the melting time and oxidation degree of silicon calcium wire, which will affect the metallurgical effect. Therefore, in the application of silicon calcium wire, it is necessary to pay attention to the molten steel situation. The properties, plasticity, impact toughness and fluidity of molten steel can be improved by reasonable application of si-Ca wire. In the furnace refining technology continues to improve today, contribute to the successful development of feeding line technology. Compared with powder spraying and direct addition of alloy block, the use of silicon calcium wire feeding technology has greater advantages. The wire feeding technology can effectively put the silicon calcium wire into the ideal position of molten steel, change the shape of inclusion, improve the castability and mechanical properties of molten steel.
