Calcium silicon cored wire is used in steelmaking, which can purify molten steel, change the shape of inclusions, improve the castability and mechanical properties of molten steel, and can significantly increase the yield of ferroalloy, reduce the cost of steelmaking, and its economic effect is remarkable.
Wire Feeding Technology of CaSi Cored Wire
The wire-feeding technology of calcium-silicon cored wire is an out-of-furnace refining method emerging in recent years and is widely used in the wire-feeding technology of modern iron and steel smelting. Alloy cored wire is used in steelmaking, which can purify molten steel, change the shape of inclusions, improve the castability and mechanical properties of molten steel, and can significantly increase the yield of ferroalloy, reduce the cost of steelmaking, and its economic effect is remarkable. Wire technology has greater advantages than powder spraying and direct joining of alloy blocks.
- The composition of molten steel can be fine-tuned and controlled by the wire feeding method (example B, Ti element), and the alloy yield is greatly improved (Ca be close to 30%).
- The molten steel is processed by the wire feeding method. The molten steel reacts smoothly and uniformly, avoids secondary oxidation, and the floating rate of inclusions is fast. The composition is uniform and the molten steel is purified well.
- The wire feeding method can avoid bringing gas into the molten steel.
- The wire feeding method has strong adaptability, less one-time investment, a small occupied area, and a wide application range.
- The wire feeding method has simple equipment, easy operation, and no environmental pollution.
Zhenxin Calcium Silicon Cored Wire
Zhenxin’s calcium-silicon cored wire includes a wire body formed by wrapping the core layer with an outer shell. The outer shell is made of iron material, and the core layer is alloy powder of the cored wire. At least the core layer at the head and tail of the wire body is formed by setting metal materials. The barrier section adopts metal powder with low moisture absorption and no pollution to steel. The wire body is provided with a plurality of barrier segments at intervals along the length direction. The barrier segments are evenly distributed along the length direction of the line body.
Zhenxin’s calcium-silicon cored wire has a good inclusion denaturation effect and can reduce or prevent the hydrogenation of molten steel. The added metal powder such as iron powder or steel powder will not adversely affect the quality of molten steel and can meet the requirements of H.
The production needs of steel types with strict content control can reduce waste products caused by excessive hydrogen content in molten steel, and at the same time avoid steel quality defects caused by high hydrogen content, thereby improving the yield of steel products, with significant economic benefits, and it can prolong the storage time of calcium-silicon cored wire, which is beneficial to the production organization and raw material management of steel types with strict requirements on hydrogen content.
In addition, there are continuous anti-skid lines on the outer surface of the shell, which can improve the quality of the feed wheel and the core. The friction force between the outer skins of the wires can be used to smoothly feed the calcium-silicon cored wire into the molten steel of the mold.
Market Status of Calcium Silicon Cored Wire
Recently, the trend of the main raw material calcium-silicon alloy has been flat, and the other raw material, cold-rolled steel strip, has not fluctuated much. The overall production cost of calcium-silicon cored wire is relatively stable. Therefore, the market quotation and transaction price of calcium-silicon cored wire remain unchanged.
The mainstream quotation of silicon-calcium cored wire 5528 is 9,500-10,000 yuan/ton, and the mainstream quotation of silicon-calcium cored wire 5528 in East China is 10,000-10,500 yuan/ton (tax-included cash). At present, the overall market demand is relatively sluggish. In the case of no significant increase in consumption and raw material prices, the weak and stable situation of calcium-silicon cored wire in the short term is difficult to change.