Calcium Silicon Cored Wire is a type of alloy cored wire made by processing silicon calcium alloy powder, which is then encapsulated in a steel strip and shaped using a cored wire machine. This cored wire technology represents an advanced out-of-furnace refining method developed from jet metallurgy technology. Before the widespread adoption of alloy cored wires in alloy production, the primary methods used were bulk alloy direct feeding and alloy powder spraying.
Deoxidizers such as calcium silicon cored wire and calcium iron cored wire exhibit a strong affinity for oxygen. During the diffusion deoxidation process, the resulting products are typically composite oxides of metal and non-metal, which are more easily separated and removed from molten steel. This efficiency has made calcium silicon cored wire the preferred alloy wire material for an increasing number of steel refining companies.
Chemical Composition of Calcium Silicon Cored Wire
| Type | Main composition % | Inside powder weight (g/m) | Steel strip thickness (mm) | Line weight (g/m) | Cored wire diameter (mm) |
| CaSi | Ca:28-30 Si:50-60 | 220±10 | 0.4±0.05 | 390±10 | 13±0.5 |
CaSi Cored Wire Specification
The Advantages of Calcium Silicon Cored Wire
The wire feeding method causes much less agitation in the molten steel compared to bulk alloy feeding and powder spraying, effectively reducing molten steel splashing and gas absorption.
Using calcium silicon cored wire reduces the temperature loss of molten steel to 5-7℃/min, which is 3 to 6 times lower than traditional methods.
Calcium silicon cored wire with varying silicon and calcium ratios allows precise adjustment of the molten steel's chemical composition.
By adding an appropriate amount based on aluminum and sulfur content, calcium silicon cored wire can significantly improve the shape of inclusions.
Feeding calcium silicon cored wire via the wire feeding method effectively lowers both investment and operational costs.
Advantages of Using the Wire Feeding Method to Feed Calcium Silicon Cored Wire
The wire feeding method involves introducing the refining agent into the ladle as a wire after molten steel is tapped from the steelmaking furnace. Depending on the refining purpose, this method is categorized into deoxidation wire feeding, desulfurization wire feeding, inclusion control wire feeding, and alloying wire feeding. Different refining agents are used in the wires, such as calcium silicon alloy powder in calcium silicon cored wire or calcium particles and iron powder in calcium iron cored wire.
The feeding equipment for calcium silicon cored wire is simple, easy to operate, occupies minimal space, and requires low investment. It is safe and reliable with low operating costs, producing no smoke and causing minimal temperature drop (only 5-7°C). This method also reduces molten steel suction, eliminates the need for refractory materials and carrier gases, and achieves a high alloy absorption rate. Therefore, feeding calcium silicon cored wire by the wire feeding method is an efficient and effective approach for molten steel deoxidation, desulfurization, fine alloy adjustment, and inclusion shape control.
Why Choose Hongshun CaSi Wire?
Quality Control: Hongshun always puts product quality first, ensuring stable performance and consistent specifications in every batch.
Production Capacity: With 4 advanced production lines, Hongshun has an annual output of 10,000 tons, ensuring reliable supply for large and long-term orders.
Factory Price: As a direct manufacturer, Hongshun offers competitive factory prices for calcium silicon cored wire, helping customers reduce procurement costs.
