Silicon metal powder is a kind of silicon powder made from silicon metal as raw material and crushed and processed. It has important applications in many industrial fields, especially in metallurgy, chemistry, electronics and solar energy.
Silicon Metal Powder Features
1. Fine particle size: the particle size range of silicon metal powder is usually in the micron range, with good dispersibility.
2. High purity: high silicon content and low impurity content.
3. Physical properties: good thermal and electrical conductivity, stable chemical properties.
4. Surface activity: high surface activity due to fine particle size and large surface area.
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Silicon metal powder for refractory |
Size(mesh) | Chemical Compositions (%) | |||
| Si | Fe | Al | Ca | ||
| Min | Max | ||||
| 150 mesh | 99 | 0.4 |
0.2 |
0.1 | |
| 200 mesh | 98.8 | 0.4 | 0.4 | 0.1 | |
| 325 mesh | 98.5 | 0.5 | 0.3 | 0.2 | |
| 400 mesh | 98 | 0.6 | 0.4 | 0.3 | |
| 600 mesh | 97 | 0.8 | 0.7 | 0.6 | |
Silicon Metal Powder uses
1. Metallurgical industry: used as deoxidiser and alloying agent, it can effectively improve the mechanical properties and process properties of steel.
2 Aluminium alloy: Silicon metal powder can be used as an additive of aluminium alloy to enhance the hardness and strength of aluminium alloy.
3. Chemical industry: It is used in the manufacture of organosilicon compounds, such as silicone rubber, silicone resin and silicone oil, which have significant advantages in high temperature resistance, insulation and waterproof.
4. Solar energy: In the photovoltaic industry, silicon metal powder is an important raw material for the production of polysilicon and monocrystalline silicon, which is used to make solar cell wafers.
5. Electronic industry: It is used to produce high-purity silicon wafers, which are widely used in the manufacture of semiconductor components.
6. Refractory materials: Silicon metal powder is an important ingredient in the production of refractory materials, which can improve the high temperature resistance of the materials
Silicon Metal Powder Production process
1. Preliminary crushing: Preliminary crushing of lumpy silicon metal to get smaller silicon lumps.
2. Fine crushing: The preliminary crushed silicon block is further crushed into powder form.
3. Grinding: further refine the silicon powder by grinding equipment to achieve the required particle size.
4. Classification: Classify the silicon powder by classifying equipment to obtain uniform products.
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