Silicon Calcium is an alloy consisting of silicon (Si) and calcium (Ca), which is widely used in steel smelting and foundry industry. It is an efficient deoxidiser, desulphuriser and alloy additive that can enhance the purity and mechanical properties of steel.
Silicon calcium properties
- Silicon (Si): Silicon is a common deoxidiser, which can effectively remove oxygen from steel, reduce the formation of oxide inclusions and improve the quality of steel.
- Calcium (Ca): Calcium is a powerful desulphurising agent that reacts with sulphur in the steel to form sulphides that are easy to remove. In addition, calcium also has a metamorphic effect, which can change the morphology of inclusions and reduce the effect of inclusions on steel properties.
silicon calcium features
- Strong deoxidation and desulphurisation capacity: Calcium-silicon alloy can effectively remove oxygen and sulphur from the steel in the steelmaking process, reducing the number of inclusions and the content of harmful elements, and is especially suitable for the production of low-sulphur steel and clean steel with high requirements.
- Improve steel properties: Calcium can change the form of inclusions in the liquid steel, so that it is converted from hard oxide inclusions to soft inclusions, thus improving the plasticity, toughness and workability of steel and reducing the tendency to crack.
- Improve casting performance: Calcium silicate alloy can improve the liquidity of steel and casting performance, reduce casting defects, improve casting quality.
silicon calcium application
1. Steel smelting:
- Silica-calcium alloy is widely used in steel production, especially for high-quality steel grades such as low-sulphur steel, special steel and stainless steel. It can not only effectively deoxidise and desulphurise, but also change the inclusions form in the steel and improve the comprehensive performance of the steel.
2. Founding industry:
- In the casting process, calcium silicate alloy can significantly improve the quality of castings and reduce casting defects such as porosity and slag entrapment. It can improve the mechanical properties of cast iron and cast steel parts, and enhance the surface finish and strength of castings.
3. Deoxidiser and desulphuriser:
- Silicon-calcium alloy is a commonly used deoxidiser and desulphuriser in the steelmaking process, especially suitable for refining steel grades with strict requirements on sulphur and oxygen content, such as bearing steel and spring steel.
silicon calcium advantages
- Reduced cost: Calcium silicate alloy is relatively inexpensive and has high economic benefits. It can not only effectively deoxidise and desulphurise, but also improve the liquidity and solidification properties of steel, reducing production costs.
- Environmentally friendly: The use of calcium silicate alloy can reduce pollution in the steel production process, especially reduce the emission of sulphides and oxides.
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