Calcium-Silicon inoculant is a type of inoculant that is commonly used in the steelmaking and casting industry. It is typically made up of a mixture of calcium and silicon, with the exact composition varying depending on the specific application. The main function of Calcium-Silicon inoculant is to improve the castability of steel by reducing the formation of shrinkage cavities and improving the flow of molten metal.

When molten steel is poured into a mold, it can sometimes form shrinkage cavities, which are small voids that form as the metal cools and solidifies. These cavities can weaken the structure of the steel and make it more prone to cracking or failure. Calcium-Silicon inoculant works by promoting the formation of calcium aluminate compounds, which help to reduce the formation of shrinkage cavities and improve the overall quality of the steel.

In addition to improving castability, Calcium-Silicon inoculant can also help to improve other properties of steel. For example, it can help to reduce the formation of inclusions, which are small particles that can weaken the structure of the steel. By reducing the amount of inclusions in the steel, Calcium-Silicon can help to improve its overall strength and durability.

Calcium-Silicon inoculant is typically added to molten steel as a powder or granule. The exact amount added will depend on the specific application, but it is typically around 0.5% to 1.5% of the total weight of the steel. The inoculant is usually added just before casting, and is mixed into the molten metal using a stirring rod or other mixing device.

Overall, Calcium-Silicon inoculant is an important tool for improving the castability and overall quality of steel. By reducing the formation of shrinkage cavities and improving the flow of molten metal, it helps to produce stronger, more durable steel that is less prone to cracking or failure.