the use of silicon calcium
I. Iron and Steel Industry
1, deoxidizer:
Calcium and silicon in Si-Ca alloy have strong affinity with oxygen in molten steel, so they are widely used as deoxidizers in steelmaking. Silicon-calcium alloy can effectively reduce the oxygen content in steel, thus improving the purity and quality of steel.
2. Desulfurization agent:
Calcium in Si-Ca alloy can also combine with sulfur in steel to form sulfide which is easy to be removed, thus reducing sulfur content in steel and improving its properties.
3, nonmetallic inclusion denaturant:
Silicon-calcium alloy can change the shape and properties of nonmetallic inclusions, make their particles bigger and easy to float, which is beneficial to the rapid purification of molten steel.
4, improve the performance of steel:
Silicon-calcium alloy can improve the crystallization system of steel, reduce the dimensional deviation of steel, and improve the stability, plasticity, impact toughness and fluidity of steel. In addition, chromium, aluminum and other elements in the Si-Ca alloy can also effectively improve the corrosion resistance of steel and prolong its service life.
5, production of clean steel:
Silicon-calcium alloy can be used to produce high-quality steel with low oxygen and sulfur content and special performance steel to meet the needs of high-end manufacturing industry.
silicon calcium in the cast iron industry
In the production of cast iron, besides deoxidation and purification, calcium-silicon alloy also plays an inoculation role, which helps to form fine or spherical graphite, makes the graphite in gray cast iron evenly distributed, reduces the tendency of white cast iron, and can increase silicon and desulfurization and improve the quality of cast iron.
Other fields using silicon calcium
1. Power industry:
Silicon-calcium alloy can be used to manufacture power equipment such as high-temperature cables, power transmission lines and transformer cores, and improve the heat resistance, wear resistance and oxidation resistance of power equipment.
2, high temperature material production:
Calcium-silicon alloy can also be used to produce high-temperature materials, such as making glazes and pottery, and producing ultra-pure silicon wafers.
3, refractory and electric metallurgical industry:
Silicon-calcium alloy can improve the heat resistance, wear resistance and oxidation resistance in these fields, thus prolonging the service life of equipment.
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