Definition and preparation of ferrosilicon alloys
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Definition and preparation of ferrosilicon
Ferrosilicon is an alloy mainly composed of two elements: silicon and iron. Its main components are silicon and iron, and the silicon content is generally between 70% and 75%. Ferro Silicon Lumps can be produced from silicon ore and iron ore through metallurgical processes.
|
Name |
Component Composition |
|
Si |
74%-80% |
|
AI |
≤0.5% |
|
Ca |
≤1.0% |
|
Mn |
≤0.4% |
|
Cr |
≤0.3% |
|
P |
≤0.035% |
|
S |
≤0.020% |
|
C |
≤0.10% |
The process of preparing FeSi usually includes the following steps: First, the silicon ore and iron ore are crushed, magnetically separated and other processes to make the two components reach the required ratio; then, they are smelted in a blast furnace or electric furnace, and the raw materials are It is heated to a high temperature to cause a chemical reaction to form a ferrosilicon alloy; then, through processes such as cooling, solidification and crushing, the smelted ferrosilicon alloy is prepared into the required block or powder product.

Ferrosilicon generally contains 70% to 75% silicon, which gives ferrosilicon excellent silicide properties.

Ferrosilicon has low hysteresis loss, which means that it can reduce energy loss in AC electromagnetic fields.

The silicon element in ferrosilicon has good deoxidation and desulfurization capabilities.


