Calcium cored wire, also referred to as pure calcium cored wire or solid calcium cored wire, is a commonly used alloy cored wire in the metallurgical steelmaking industry. Its structure adopts a steel strip as the outer wrapping material, and the inner layer is filled with calcium wire or calcium particles according to the requirements of the steelmaking process, which is encapsulated and formed through the edge rolling process. It is mainly suitable for the calcium treatment link in the molten steel refining process. The calcium cored wire produced by professional alloy cored wire suppliers needs to be fed into the molten steel through a wire feeder, with a wire feeding speed controlled at 60-120 meters per minute, and the wire feeding amount per ton of molten steel is about 0.8-1.5 meters, which can achieve efficient calcium treatment effect.
Classification and Technical Indicators of Pure Calcium Cored Wire
Seamless Solid Calcium Cored Wire
Seamless solid calcium cored wire is made by special welding technology, consisting of three parts: outer steel strip, intermediate protective coating and inner metal calcium wire. It mainly undertakes the core functions of deoxidation, desulfurization and removal of molten steel inclusions in the steelmaking process, which can effectively improve the purity of molten steel and the quality of steel products.
Double-Layer Solid Calcium Cored Wire
Double-layer solid calcium cored wire is a special calcium treatment material made by wrapping calcium wire with two layers of steel strips. Its production process first wraps the calcium wire with the inner steel strip, and then completes the encapsulation through the rolling and occlusal of the outer steel strip. Thanks to the increase in the thickness of the outer steel strip, this type of calcium cored wire can go deeper into the molten steel to ensure the full reaction of calcium elements. Its wire feeding speed is 60-90 meters per minute, and the wire feeding amount is 0.8-1.5 meters per ton of steel. It is suitable for the calcium treatment of molten steel in the external refining process, especially for the deoxidation and calcium treatment of aluminum-killed steel.
Core Advantages of Calcium Cored Wire
High-Quality Raw Materials: ZX brand calcium cored wire uses self-produced φ7.5mm-φ7.8mm pure calcium wire as the core material, and the outer layer uses cold-rolled bright steel strip. The thickness of the steel strip is thicker than that of ordinary cored wire, and the structural stability is stronger.
Excellent Physical Properties: The pure calcium cored wire has a uniform diameter, and has the characteristics of high strength and good toughness. It is not easy to break during the wire feeding process, which is convenient for precise control of the wire feeding amount and ensures the stability of the calcium treatment process.
High Calcium Recovery Rate: This calcium cored wire can replace calcium silicon cored wire and calcium iron cored wire for the production and processing of various types of steel. The calcium element recovery rate can be increased by more than 52%, which effectively improves the calcium treatment efficiency.
Controllable Production Cost: When using pure calcium cored wire to treat molten steel, the weight of wire fed per ton of steel is only about 38% of that of calcium silicon cored wire, which can significantly reduce the raw material consumption cost of steelmaking enterprises.
Good Storage Performance: ZX calcium cored wire adopts a tight winding and packaging process, which is tightly wrapped. It can support long-term storage, has stable performance during storage, and the use effect is not affected.
Current Price of Calcium Cored Wire
As of November 3, 2023, the FOB price of calcium cored wire with purity ≥98% and diameter φ9mm (calcium content 58-68g/m) is 1700-1750 US dollars per ton, which is for reference only. For the latest quotation and detailed cooperation information, please feel free to contact us.