Silicon calcium cored wire is a metallurgical refractory material that can purify impurities in the molten steel during the steelmaking process, making its molten steel highly castable, resulting in high yield of silicon calcium alloy, reduced alloy consumption and steelmaking costs, and significant economic benefits.
Silicon calcium cored wire cored technology is a newly developed method of out of furnace refining, widely used in modern wire feeding technology for steel refining. Alloy cored wire used for steel refining can purify molten steel, change the morphology of inclusions, improve the castability and mechanical properties of molten steel, and significantly improve the yield of ferroalloys, reduce steel refining costs, and have good economic effects.
Silicon calcium cored wire is mainly suitable for deoxidation and desulfurization in steelmaking, which can improve the performance of steel, improve its plasticity, impact toughness, and fluidity of molten steel. It also has the characteristics of direct melting into the molten steel and uniform distribution. With the development of the refining alloy steel industry, there has been a significant increase in high-quality alloy steel and variety steel, and the continuous improvement of outside furnace refining technology has contributed to the successful development of wire feeding technology. The use of wire feeding technology has greater advantages over powder spraying and direct addition of alloy blocks.
Adding calcium to steel can refine grain size, partially desulfurize, and alter the composition, quantity, and morphology of non-metallic inclusions. The effect of adding rare earth elements in steel is basically similar.
Improve the corrosion resistance, wear resistance, high and low temperature resistance of steel; Improved the impact toughness, fatigue strength, plasticity, and welding performance of steel; Increased cold heading, shock resistance, hardness, and contact durability of steel.
Adding calcium in cast steel greatly improves the fluidity of molten steel; The surface smoothness of the casting is improved, and the anisotropy of the microstructure in the casting is improved; Its casting performance, hot crack resistance, mechanical performance, and cutting performance have all increased to varying degrees.
