The silicon content in silicon metal 553 is not less than 98.5%, and the impurity contents of iron, aluminum, calcium, etc. are not higher than 0.5%, 0.5%, 0.3% respectively, and the rest are small amounts of impurity elements such as carbon, phosphorus, and sulfur. The particle size of silicon 553 in the size range of 10-100mm is relatively moderate. Different size of 10-100mm are matched with each other, which can provide better filling and fluidity during use. For example, in the production of aluminum alloys, larger particles can be slowly melted in the furnace, releasing silicon elements while better controlling the reaction rate and the uniformity of the alloy composition.

silicon Metal 553 10-100mm

chemical composition

Grade	Chemical composition	553	441	421	3303	2503	2202
	Si ≥	98.5%	99%	99%	99%	99%	99%
	Fe ≤	0.5%	0.4%	0.4%	0.3%	0.2%	0.2%
	Al ≤	0.5%	0.4%	0.2%	0.3%	0.5%	0.2%
	Ca ≤	0.3%	0.1%	0.1%	0.03%	0.03%	0.02%
	size	40-120 mesh,45-325 mesh, -200 mesh, -325 mesh.etc
	Note: All grades of silicon metal from our company can be used for processing, and the size can also be processed according to your requirements.
Package	25 kg/bag or 1 ton/bag

Production process

Raw material preparation:

High-purity quartz and high-quality coke are selected as the main raw materials. The silicon dioxide content in quartz is generally required to be above 99%. The fixed carbon content and ash content of coke are also strictly required to ensure the quality of silicon metal.

Smelting:

Add the pre-treated quartz and coke into the submerged arc furnace in a certain proportion, and carry out reduction reaction under high temperature conditions, so that the silicon dioxide in the quartz is reduced to silicon by coke, and the generated silicon liquid gathers at the bottom of the furnace.

Refining:

Refining the crude silicon obtained by smelting, further remove impurities in it by blowing and stirring, adding refining agents, etc., and improve the purity of silicon.

Casting:

Pour the refined silicon liquid into a specific mold, solidify and shape it under natural cooling or forced cooling conditions, and obtain silicon metal lumps.

Crushing and screening:

Crushing large pieces of silicon metal lumps, and screening out products with a size of 10-100mm through screening equipment. Particles that do not meet the size requirements are returned to the crushing process for further processing.

Products uses

Aluminum alloy industry:

It is one of the commonly used additives in aluminum alloy production. It can significantly improve the strength, hardness, heat resistance and wear resistance of aluminum alloy. It can also improve the casting performance and processing performance of aluminum alloy, making it It is easier to form and process and is widely used in aerospace, automobile manufacturing, machinery manufacturing and other fields to manufacture engine parts, automobile wheels, aerospace structural parts, etc.

Steel industry:

As a deoxidizer and alloying agent in the steelmaking process, it can effectively remove oxygen and impurities in molten steel, improve the quality and performance of steel, refine the grains of steel, and improve the toughness and processability of steel. It plays an important role in the production of special steel types such as high-strength alloy steel and stainless steel.

Silicone industry:

It is the basic raw material for the production of organic silicon compounds. By reacting with organic compounds such as methyl chloride, various silicone products such as silicone oil, silicone rubber, and silicone resin can be synthesized. These silicone products have excellent high temperature resistance and low temperature resistance. , aging resistance, insulation and other properties, it is widely used in electronic and electrical, construction, chemical, medical and other industries.

Semiconductor industry:

Due to its semiconductor properties, it can be used to produce polycrystalline silicon, monocrystalline silicon and other semiconductor materials to manufacture integrated circuits, solar panels and other electronic components. With the rapid development of the electronic information industry, the demand for metallic silicon 553 is also increasing. Keep increasing.

Refractory industry:

It has a high melting point and anti-oxidation performance. It can be used as an additive for refractory materials to improve the high temperature resistance and corrosion resistance of refractory materials. It is used to manufacture the linings of high-temperature equipment such as steelmaking furnaces, kilns, and boilers. Material.

silicon metal 553 10-100mm