Alloy Cored Wire

Alloy cored wire is used for steelmaking. which can purify the shape of steel inclusions, play the role of pure molten steel and partly change the nature and shape of inclusions, improve the quality of molten steel, improve the casting state, improve the castability of steel and improve the use of steel Performance, and can significantly improve the yield of the alloy, reduce alloy consumption, reduce the cost of steelmaking.

Cored wire is widely used in the steelmaking ladle refining process. Crush CaSi, CaFe, carbon powder and other additives (deoxidizer, desulfurizer, alloy) into a certain particle size, wrap it with cold-rolled steel strip, and wind it into a coil. according to the different core powder, cored wire features and uses are different.

according to the different core powders, The cored wire is filled with alloy powders such as CaSi, CaFe, C, Ca, FeTi, and FeS, etc.

There are many kinds of alloy cored wire, includingCalcium silicon cored wire, Calcium ferro cored wire, Carbon cored wire, ReSiMg wire, Calcium cored wire, Ferro Titanium Cored Wire, Ferro sulfur cored wire, and so on.

Calcium Silicon Cored Wire

calcium silicon cored wire filled with calcium silicon powder is a compound alloy made up of elements silicon, calcium, and iron. The powder size is 0-3mm. It is mainly used for deoxidation and desulfurization in the steel smelting process. which provides precise control over the addition of alloying elements and improves steel performance. By precisely adding silicon and calcium to molten steel, it becomes easier to control and adjust the content of easily oxidized and trace elements, leading to a significant increase in alloy yield, lower smelting costs, shorter smelting times, and better composition control.

Calcium Ferro Cored Wire

Calcium ferro cored wire is a method used for deoxidizing molten steel in steelmaking, making it ideal for steelmaking enterprises. It consists of a core material made from a mixture of 30-35% metal calcium particles and iron powder, encapsulated within strip steel to form the cored wire.

Calcium ferro cored wire is suitable for refining molten steel, effectively removing residual oxygen and inclusions. Additionally, it enhances the fluidity of molten steel, which helps reduce refining costs.

Calcium Cored Wire

Pure calcium cored wire consists of a metal calcium core encased in a steel sheath. It is primarily used in steel refining, where it is fed into molten steel using a wire feeder at speeds of 60–120 m/s, with a feed rate of 0.8–1.5 m/ton. This wire is particularly suitable for calcium treatment during steel refining.

Advantages of Pure Calcium Cored Wire:

1. Minimal Impurities: The calcium treatment process avoids introducing oxides commonly present in powder cored wires, preventing contamination of the molten steel.
2. High Density: The core rod’s high density and small specific surface area minimize the oxidation of metallic calcium.
3. Consistent Calcium Content: Uniform and stable calcium distribution ensures more effective treatment results.
4. Deeper Penetration: High-density solid calcium rods can reach deeper parts of the steel and remain below the critical depth for longer durations, resulting in a higher calcium recovery rate.
5. Quality Assurance: The rods are easy to inspect for quality and have an extended shelf life.

Carbon Cored Wire

Carbon cored wire is used to increase the carbon content in molten steel. It enables precise adjustments to the carbon level, It is conducive to the control of carbon content and can reduce production costs.

Characteristics of Carbon Cored Wire:

High Carbon Recovery Rate: Achieves a recovery rate of over 90% with consistent stability.
Cost Reduction: Offers lower production costs compared to conventional carbon powder cored wires.
Extended Shelf Life: Ensures a longer storage duration for the product.

Technical Specifications

The main cored wire diameters are 13mm and 9mm.

1. Alloy Powder Mixing

The alloy powders are mixed according to the specified proportions. This ensures a uniform composition that meets the desired performance requirements for the final product.

2. Encapsulation in Steel Strips
The mixed core powders are fed into a cored wire machine. The steel strips are folded and clamped tightly around the powder core, encapsulating the mixture evenly within the steel sheath.

3. Wire Coiling
The cored wire is wound into coils of specified dimensions. This step ensures that the wire is packaged in a manageable form for transportation and subsequent use by the customer.

4. Quality Inspection
Each coil is chemical composition testing and can accept third-party testing (SGS) to ensure it meets the client’s technical specifications.

5. Packaging
The coils are securely strapped using steel bands to prevent loosening or deformation during transportation and storage.

Each coil is wrapped with three layers of protective film to safeguard against moisture, dust, and other environmental factors that might compromise quality.

6. Palletization
The wrapped coils are placed either horizontally or vertically on steel pallets or within steel cages. This step facilitates safe handling and efficient storage during transit.

7. Shipping and Delivery
The packed cored wire is labeled and prepared for shipment. It is then delivered to the customer, ensuring that all logistical and delivery requirements are met.

vertical or horizontal Iron cage on steel pallet.