In addition, silicon calcium is added to molten steel to produce a strong exothermic effect, which is beneficial to maintain the temperature of molten steel. The calcium vapor produces a stirring effect on the molten steel, which is beneficial to the floating of non-metallic slag.
In the production of cast iron, calcium silicon is more effective in improving the properties of cast iron than ferrosilicon. Silicon-calcium alloy is not only an effective inoculant to promote the formation of spheroidal graphite, but also has the effects of deoxidation, desulfurization, denitrification and silicon increase.
| Type | Content of Elements | |||||
| % Ca | % Si | % C | % Al | % P | % S | |
| Ca31Si60 | 31 | 55-65 | 1.0 | 2.4 | 0.04 | 0.06 |
| Ca28Si60 | 28 | 55-65 | 1.0 | 2.4 | 0.04 | 0.06 |
| Ca24Si60 | 24 | 55-65 | 1.0 | 2.5 | 0.04 | 0.04 |
| Ca20Si55 | 20 | 50-60 | 1.0 | 2.5 | 0.04 | 0.04 |
| Ca16Si55 | 16 | 50-60 | 1.0 | 2.5 | 0.04 | 0.04 |
1.Used as deoxidizer & desulfurizer in steel making.
2.Effectively avoid the problem of ladle nozzle nodules and blockage.
3.As an inoculant for casting and an additive in the production of ductile iron.
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