Calcium Carbide Cored Wire
Calcium Carbide Cored Wire is an advanced metallurgical treatment material designed for precise desulfurization and slag conditioning in secondary steelmaking. By encapsulating high-purity calcium carbide powder within a cold-rolled steel strip, it delivers the reactive core directly into deep molten steel. This prevents premature burning at the slag surface, optimizes sulfur removal, and improves steel cleanliness without altering silicon or nitrogen levels.
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Product Introduction
Calcium Carbide Cored Wire is an advanced metallurgical treatment material designed for precise desulfurization and slag conditioning in secondary steelmaking. By encapsulating high-purity calcium carbide powder within a cold-rolled steel strip, it delivers the reactive core directly into deep molten steel. This prevents premature burning at the slag surface, optimizes sulfur removal, and improves steel cleanliness without altering silicon or nitrogen levels.
Technical Specifications
|
Item |
Specification |
|
Filling Material |
Calcium Carbide (CaC₂) |
|
Filling Ratio |
Customized |
|
Wire Diameter |
9 mm / 13 mm / 16 mm |
|
Steel Strip Thickness |
Customized |
|
Packing |
Steel coil with wooden pallet |
|
Coil Weight |
1–2 tons (customized) |
Product Features
Tight Seam Sealing
Uses cold-rolled steel strip with a tight mechanical lock to hold CaC2 powder securely, preventing wire split and powder leakage at high feeding speeds up to 4 m/s.
No Silicon Pick-Up
Delivers pure CaC2 directly to molten steel to react with sulfur without adding silicon, preserving precise chemical tolerances for silicon-sensitive steel grades.
Deep Ladle Injection
Protects active calcium from premature oxidation in the top slag layer, releasing material only at full ladle depth to maximize sulfur reaction rate and recovery.
Smooth Feed Control
Maintains uniform outer diameter and linear mass density along the entire coil, preventing guide tube friction and drive roll slippage.
Customization Options
Core Mass & Filling Density: Adjust CaC2 powder mass per meter and core filling ratio based on target sulfur removal rates.
Wire Outer Diameter: Standard 9 mm, 13 mm, and 16 mm sizes to fit specific drive roll grooves and guide tube inner diameters.
Steel Strip Parameters: Selectable strip thickness and tensile strength to control melting depth and prevent seam splitting during high-speed feeding.
Coil Dimensions & Weight: Tailored coil inner/outer diameters and total weight (1-2 tons) to match plant uncoiler stands and crane capacity limits.
Sealed Export Packaging: Customizable multi-layer aluminum vapor foil, desiccant volume, and pallet dimensions for local transport and long-distance ocean shipping.
Customization Process
Requirements Matching
Provide your steel grade targets, ladle capacity, wire feeder speed, and desulfurization specifications.
Specification Engineering
We define exact parameters including wire diameter, steel strip thickness, CaC2 filling mass density, and coil dimensions.
Sample & Batch Testing
Trial coils are manufactured and tested for seam tightness, outer diameter tolerances, and linear weight consistency.
Precision Manufacturing
Automated line production ensures uniform powder filling, tight mechanical seam locking, and continuous electronic mass monitoring.
Custom Moisture Packaging
Finished coils are weighed, sealed, and strapped onto export-ready pallets according to agreed specifications.
Packaging & Delivery
Vapor-Barrier Sealing: Multi-layer moisture-proof foil with desiccants prevents air and humidity exposure during sea freight.
Reinforced Palletizing: High-tensile steel strapping on ISPM-15 heat-treated pallets for safe maritime transit.
Direct-To-Feed Design: Clear uncoiling direction and lifting points for immediate loading onto plant injection equipment.
Why Partner with Anyang Jingfengyuan Ferroalloy?
31-Year Metallurgical Lineage: Established in 1995, we leverage over three decades of manufacturing experience and 22+ senior engineers to offer tailored alloy ratios and tight tolerance controls.
Scalable Output & Fast Delivery: 80,000+ m² manufacturing base with 8+ dedicated production lines, ensuring an annual output of tens of thousands of tons for bulk orders.
Advanced & Mechanized Production: Equipped with upgraded medium-frequency induction furnaces and fully automated workflows for consistent chemical uniformity.
Certified Quality Assurance: Full batch traceability under ISO 9001, ISO 14000, and GJB 9001 standards, backed by complete in-house lab testing.
Global Logistics & Export Reach: Proven export track record with reliable fulfillment, serving industrial clients across 86+ countries.
FAQ
Q: Why is Calcium Carbide Cored Wire preferred over Calcium Silicon (CaSi) for certain steel grades?
A: Calcium carbide provides strong thermodynamic reduction specifically targeted at sulfur removal without adding silicon to the molten bath, making it ideal for strict low-silicon steel grades.
Q: How does the steel sheath thickness affect deep-injection performance?
A: Sheath thickness dictates the melting delay of the wire. Proper thickness allows the wire to pass through the top slag layer and melt precisely at the deeper region of the ladle for optimal reagent yield.
Q: What precautions are taken during packaging to protect against humidity?
A: Because calcium carbide reacts with water vapor, every coil is sealed in heavy-duty moisture-proof barrier foil with desiccants to maintain dry conditions throughout sea transit.
Q: How is uniform core filling guaranteed across large coil lengths?
A: Automated online feeding and electronic mass-monitoring systems continuously regulate the powder flow rate and seam closure pressure during manufacturing, minimizing density variations.
Q: How do steel mills determine the optimal wire diameter for their process?
A: Selection depends on ladle capacity and target refining speed. Smaller diameters suit smaller ladles or fine trimming, while larger diameters allow rapid mass addition in large ladles.
Q: What quality documentation is provided with each shipment?
A: Each batch includes a Certificate of Analysis (COA) detailing raw material purity, core filling weight per meter, dimensional tolerances, and batch tracking numbers for full traceability.
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