Silicon is widely used in smelting into ferrosilicon alloy as an alloying element in the iron and steel industry, and as a reducing agent in the smelting of many kinds of metals. Silicon is also a good component in aluminum alloys, and most cast aluminum alloys contain silicon. Silicon is the raw material of ultra-pure silicon in the electronics industry. Electronic devices made of ultra-pure semiconductor single crystal silicon have the advantages of small size, light weight, good reliability and long life. High-power transistors, rectifiers and solar cells made of silicon single crystals doped with specific trace impurities are better than those made of germanium single crystals. Research on amorphous silicon solar cells has progressed rapidly, and the conversion rate has reached more than 8%.
The maximum operating temperature of the silicon-molybdenum rod heating element can reach 1700°C, and it has resistance resistance to aging and good oxidation resistance. Trichlorosilane produced from silicon can be used to prepare hundreds of silicone lubricants and waterproofing compounds. In addition, silicon carbide can be used as an abrasive, and quartz tubes made of high-purity silicon oxide are important materials for high-purity metal smelting and lighting fixtures. Paper of the 80's - Silicon Silicon has been called the "Paper of the 80's". This is because paper can only record information, while silicon can not only record information, but also process information to obtain new information. The world's first electronic computer manufactured in 1945 was equipped with 18,000 electron tubes, 70,000 resistors, and 10,000 capacitors.
The whole machine weighed 30 tons and covered an area of 170 square meters, equivalent to the size of 10 houses. Today's electronic computers, due to the advancement of technology and the improvement of materials, can accommodate tens of thousands of transistors on a silicon chip the size of a fingernail; and have a series of functions such as input, output, calculation, storage and control information. Microporous silicon-calcium insulation material Microporous silicon-calcium insulation material is an excellent insulation material. It has the characteristics of small heat capacity, high mechanical strength, low thermal conductivity, non-combustible, non-toxic and tasteless, cuttable, convenient transportation, etc. It can be widely used in various thermal equipment and pipelines such as metallurgy, electric power, chemical industry, and ships. After testing, the energy-saving benefit is better than that of asbestos, cement, vermiculite and cement perlite and other insulation materials. Special silicon-calcium materials can be used as catalyst carriers, and are widely used in petroleum refining, automobile exhaust purification and many other aspects.
| Function | Rank | Size(mesh) | Si(%) | Fe | AI | Ca |
| Metallurgical | Super | 0-500 | 99.0 | 0.4 | 0.4 | 0.1 |
| Level1 | 0-500 | 98.5 | 0.5 | 0.5 | 0.3 | |
| Level2 | 0-500 | 98 | 0.5 | 0.5 | 0.3 | |
| Level3 | 0-500 | 97 | 0.6 | 0.6 | 0.5 | |
| Substandard | 0-500 | 95 | 0.6 | 0.7 | 0.6 | |
| 0-500 | 90 | 0.6 | -- | -- | ||
| 0-500 | 80 | 0.6 | -- | -- | ||
| Chemicals | Super | 0-500 | 99.5 | 0.25 | 0.15 | 0.05 |
| Level1 | 0-500 | 99 | 0.4 | 0.4 | 0.1 | |
| Level2 | 0-500 | 98.5 | 0.5 | 0.4 | 0.2 | |
| Level3 | 0-500 | 98 | 0.5 | 0.4 | 0.4 | |
| Substan d ard | 0-500 | 95 | 0.5 | -- | -- |
Post time: Apr-11-2023
