Silicocalcium(CaSi) SK-30 is a common deoxidizer and desulfurizer, It is one of the specifications of silicon calcium alloy ,and it is mainly made of silica, lime and coke. After reduction at 1500-1800 degrees, ferrosilicon calcium is obtained. It is generally used in steelmaking and cast iron.
the Chemical content and analysis of silicocalcium (CaSi) SK-30
| Si(max) | Ca(Max) | C(Min) | Al(Min) | S | |
| silicocalcium (CaSi) SK-30 | 60% | 30 | 0.7% | 1.4% | 0.07% |
The role of silicocalcium (CaSi) SK-30 in steelmaking
Steelmaking industry.
- Deoxidizer. The calcium in silicocalcium alloy has a strong affinity with oxygen in molten steel, so it is widely used as a deoxidizer in steelmaking. because silicocalcium can reduce oxygen content in the steel effctively, and improve the purity of steel and quantity.
- Desulfurization agent. The calcium in the silicocalcium(CaSi) alloy can also combine with the sulfur in the molten steel to form sulfides, reducing the sulfur content in the steel and improving the performance of the steel.
- Non-metallic inclusion modifier.Silicon calcium alloy can change the shape and properties of non-metallic inclusions, making the inclusion particles larger and easier to float, which is conducive to the rapid purification of molten steel.
- produce Clean Steel. silicocalcium can produce High-quality steel and special steel with low oxygen and sulfur content to meet the needs of high-end manufacturing.
Casting industry
Silicocalcium has the function of deoxizer and Purification and Pregnancy in the casting , it can Helps to form fine particles and spherical graphite, Make the graphite in cast iron evenly distributed, reduce the tendency of white cast iron, increase silicon, desulfurize and improve the performance of castings.
Others
Silicocalcium can produce High temperature cable, improve the Heat resistance, wear resistance and oxidation resistance of power equipment.
Shape and packaging of calcium silicon alloy
Calcium silicon lump. the CaSi lump usually used in steelmaking and casting industry. Usually packed in ton bags, one bag for one ton
Silicocalcium powder(particles). the silicocalcium particles the same as silicon calcium lump, but,It is usually used in small foundries or laboratory research, and can be placed relatively accurately to adjust the moisture content of molten iron.The packaging of calcium silicon particles is generally a small bag of 250 kg
Silico calcium cored wire. Calcium silicon cored wire is mainly used for the external connection of molten steel. It is usually used in modern steel production where the stability of steel production is extremely high. Wrapped in plastic bags and packed in cages.
