Quality safety Silicon Metal/metal silicon 553 grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 m.t/month
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Product Description
Silicon metal is very rich in the earth's crust, rank only second to oxygen. Silicon metal can be divided into many kinds, including ferro silicon ,simn etc.Its main element is si whose content is about 98% and its impurities is Al, Fe, Ca etc. The additional product of silicon metal includes silica fume, edge leather, black silicon etc.Silica fume is widely used in the fireproofing and concrete industry
Applications of silicon metal
(1)Silicon metal can be used to make silicon crystals, silicone rubber , silicone oil etc.
(2)Silicon metal can be used in the aluminum alloy industry.
(3)Silicon metal can also be used as the basic raw material in the chemical industry.
(4)Silicon metal can make high purity semiconductor.
(5)Automobile industries use aluminum that requires a quite large industrial silicon , so the country's auto industry development has a direct effect on industrial silicon market.
(6)Silicon metal can replace pure aluminium in steelmaking.
(7)A large proportion of silicon metal will be applied in the chemical industry.
- Q:What are the key properties and characteristics of monolithic refractories?
- Monolithic refractories are a type of refractory material that are known for their ability to be shaped or installed in a single piece or without joints. These materials are typically used in high-temperature applications where traditional brick or tile refractories may not be suitable. One key property of monolithic refractories is their excellent thermal stability. They can withstand extreme temperatures without undergoing significant expansion or contraction, making them ideal for use in furnaces, kilns, and other heat-intensive environments. This property allows monolithic refractories to maintain their structural integrity and provide long-lasting performance. Another important characteristic of monolithic refractories is their high resistance to thermal shock. They can withstand rapid temperature changes without cracking or spalling, which is crucial in applications where the refractory material is exposed to alternating hot and cold conditions. This resistance to thermal shock ensures the longevity of the refractory lining and reduces the need for frequent repairs or replacements. Monolithic refractories also exhibit good mechanical strength, which enables them to withstand the mechanical stresses and loads imposed on them during use. They possess excellent load-bearing capacity and can resist abrasion, erosion, and impact, making them suitable for applications where the refractory material is subjected to mechanical wear or impact. Furthermore, monolithic refractories have the advantage of being easily installed and repaired. Unlike traditional refractories that require skilled labor and time-consuming bricklaying techniques, monolithic refractories can be cast, gunned, or sprayed into place. This ease of installation allows for faster turnaround times and reduces downtime during repairs or maintenance. Lastly, monolithic refractories offer good chemical resistance to various corrosive agents, such as acids, alkalis, and molten metals. This property makes them suitable for use in industries where the refractory material is exposed to aggressive chemical environments, such as the steel, petrochemical, and glass industries. In summary, the key properties and characteristics of monolithic refractories include excellent thermal stability, high resistance to thermal shock, good mechanical strength, easy installation and repair, and good chemical resistance. These properties make them a preferred choice in high-temperature applications where durability, reliability, and performance are of utmost importance.
- Q:How do monolithic refractories mitigate heat loss in iron and steel operations?
- Monolithic refractories are highly effective in mitigating heat loss in iron and steel operations due to their unique properties and composition. These refractories are made from a single, continuous material, making them resistant to cracks and gaps that could allow heat to escape. One key advantage of monolithic refractories is their excellent thermal conductivity and insulation properties. They have a low thermal conductivity, which means they can effectively restrict the transfer of heat from the hot areas to the cooler surroundings. This insulation property helps maintain high temperatures within the iron and steel operations, reducing heat loss to the environment. Another factor that contributes to the heat loss mitigation is the ability of monolithic refractories to form a tight seal with the metal structures they are applied to. They adhere well to the surfaces and fill in any gaps or irregularities, creating a solid barrier against heat loss. This seal minimizes the possibility of heat escaping, ensuring that the energy generated within the operations is effectively utilized. Furthermore, monolithic refractories have high resistance to thermal shock. In the iron and steel industry, extreme temperature fluctuations are common, which can lead to material deterioration and cracks. Monolithic refractories, with their high thermal shock resistance, are able to withstand these rapid temperature changes without compromising their structural integrity. This ensures the longevity and effectiveness of the refractories in mitigating heat loss. Overall, monolithic refractories play a crucial role in mitigating heat loss in iron and steel operations by providing excellent insulation, forming a tight seal, and withstanding thermal shock. These properties allow the refractories to maintain high temperatures within the operations, optimize energy utilization, and enhance the overall efficiency of the processes.
- Q:How do monolithic refractories withstand the chemical attacks in aluminum furnace applications?
- Monolithic refractories withstand chemical attacks in aluminum furnace applications due to their high resistance to oxidation and corrosion. They are specifically designed to withstand the harsh environment of aluminum processing, which involves exposure to molten aluminum, alkaline fluxes, and other corrosive chemicals. Monolithic refractories have excellent chemical stability, low porosity, and high thermal shock resistance, which allows them to maintain their structural integrity and protect the furnace lining from chemical erosion. Additionally, these refractories often contain additives such as antioxidants and anti-corrosion agents that further enhance their resistance to chemical attacks in aluminum furnace applications.
- Q:How do monolithic refractories resist corrosion from molten metals?
- Due to their unique composition and structural properties, monolithic refractories have the ability to resist corrosion caused by molten metals. Typically made from a single material like alumina, magnesia, or silica, these refractories are specifically designed to withstand harsh chemical environments and high temperatures. A significant contributing factor to their corrosion resistance is their dense and compact structure. Through a specialized manufacturing process, monolithic refractories are created with a tightly bonded material that has minimal porosity. This low porosity prevents molten metals from penetrating the refractory and causing damage. Moreover, monolithic refractories often incorporate additives or binders to enhance their resistance to corrosion. These additives, such as silicon carbide, zirconia, or other chemically stable materials, can endure the corrosive effects of molten metals. Additionally, monolithic refractories possess excellent thermal shock resistance. This means that they can endure sudden temperature changes without cracking or spalling. When in contact with molten metals, the refractory's ability to handle thermal shock prevents the formation of cracks or fractures, which would allow further penetration of the corrosive molten metal. In conclusion, the combination of a dense structure, chemical additives, and high thermal shock resistance enables monolithic refractories to effectively resist corrosion caused by molten metals. These refractories find extensive use in various industrial applications, including steelmaking, foundries, and non-ferrous metal processing, where they offer reliable and durable protection against corrosion.
- Q:How do monolithic refractories contribute to reducing emissions in iron and steel processes?
- Monolithic refractories play a crucial role in reducing emissions in iron and steel processes by providing superior insulation, increased energy efficiency, and improved control over the production process. These refractories are designed to withstand extreme temperatures and harsh conditions, effectively minimizing heat loss and reducing the need for excessive fuel consumption. By creating a highly insulated environment, monolithic refractories enable better temperature control, leading to optimized combustion and reduced emissions of greenhouse gases. Additionally, their high resistance to wear and corrosion helps prevent the formation of pollutants, thereby contributing to a cleaner and more sustainable iron and steel industry.
- Q:What are the different techniques for installing monolithic refractories?
- There are several techniques for installing monolithic refractories, each with its own advantages and suitability for different applications. Some of the common techniques include: 1. Casting: In this technique, the refractory material is mixed with water or a binder to form a slurry. The slurry is then poured into molds or directly onto the prepared surface. The material is allowed to set and harden, forming a solid monolithic structure. 2. Gunning: Gunning involves spraying the refractory material onto the surface using a gunning machine. The material is mixed with water or a binder to form a wet mix, which is then propelled onto the surface at high velocity. This technique is commonly used for repairing or lining larger areas and can be done onsite. 3. Ramming: Ramming involves compacting the refractory material into place using a pneumatic or manual ramming tool. The material is typically preheated to reduce moisture content and increase workability. This technique is often used for lining smaller areas or for filling gaps between bricks or precast shapes. 4. Shotcreting: Shotcreting is a technique similar to gunning, but it involves using a dry mix of refractory material. The dry mix is combined with water or a binder just before it is sprayed onto the surface using a high-pressure nozzle. Shotcreting is commonly used for lining larger areas or for creating complex shapes. 5. Troweling: Troweling involves applying the refractory material onto the surface using a trowel or a similar tool. The material is typically a wet mix and is spread and smoothed manually. This technique is often used for patching or repairing small areas or for finishing touches. 6. Vibrating: Vibrating involves using a vibrating tool or a vibrator to compact the refractory material and remove air pockets. This technique is commonly used for improving the density and strength of the monolithic refractory after it has been installed using other techniques. It is important to note that the selection of the technique depends on various factors such as the type of refractory material, the size and shape of the area to be lined, and the specific requirements of the application. Additionally, proper preparation of the surface and adherence to installation guidelines are crucial for ensuring the effectiveness and longevity of the monolithic refractory.
- Q:What are the main factors affecting the thermal conductivity of monolithic refractories?
- The thermal conductivity of monolithic refractories is affected by various factors. These include the composition of the refractory material, the density of the material, the porosity of the material, and the presence of any additives or impurities. The composition of the refractory material plays a significant role in determining its thermal conductivity. Different types of refractory materials, such as alumina-based, silica-based, or magnesia-based, exhibit different thermal conductivities due to their distinct chemical compositions. Materials with higher alumina content generally display higher thermal conductivities compared to those with higher silica content. The density of the refractory material also impacts its thermal conductivity. Materials with higher densities generally exhibit higher thermal conductivities because the closely packed particles enable more efficient heat transfer. Conversely, materials with lower densities tend to have lower thermal conductivities as the presence of air pockets or voids hinders heat transfer. Another crucial factor is the porosity of the refractory material. Porosity refers to the presence of small pores or spaces within the material. Higher porosity leads to lower thermal conductivity as the air or gas trapped within the pores acts as an insulator, reducing the material's ability to conduct heat. Therefore, materials with lower porosity tend to have higher thermal conductivities. The presence of additives or impurities in the refractory material also affects its thermal conductivity. Certain additives or impurities, such as carbon or metallic oxides, can either enhance or inhibit heat transfer in the material. For example, the addition of carbon can increase thermal conductivity due to its high thermal conductivity, while the presence of metallic oxides may decrease thermal conductivity due to their lower thermal conductivities. In conclusion, the thermal conductivity of monolithic refractories is influenced by factors such as composition, density, porosity, and the presence of additives or impurities. Understanding and controlling these factors are crucial in designing and selecting refractory materials with optimal thermal conductivity for specific applications.
- Q:How do monolithic refractories enhance the performance of ladle and tundish preheating systems?
- Monolithic refractories enhance the performance of ladle and tundish preheating systems by providing excellent thermal insulation, high mechanical strength, and resistance to corrosion and erosion. This allows for efficient heat retention and distribution, ensuring uniform and consistent preheating of ladles and tundishes. Additionally, monolithic refractories minimize heat losses, reduce energy consumption, and increase the lifespan of the preheating systems, contributing to improved overall performance.
- Q:Can monolithic refractories be used in electric arc furnaces and induction furnaces?
- Yes, monolithic refractories can be used in both electric arc furnaces and induction furnaces. Monolithic refractories are versatile and can be shaped and installed easily, making them suitable for various types of furnaces, including electric arc furnaces and induction furnaces. These refractories are composed of a single material, such as castables, gunning mixes, ramming mixes, and plastic refractories, which can withstand high temperatures and thermal shock. They are commonly used to line the walls, roofs, and bottoms of furnaces to provide insulation and protection against the extreme heat generated during the melting and refining processes. Monolithic refractories offer excellent resistance to chemical attack, erosion, and mechanical stress, making them ideal for use in electric arc furnaces and induction furnaces, where intense heat and harsh operating conditions are encountered.
- Q:How do monolithic refractories improve the efficiency of ladle and tundish preheating stations?
- Monolithic refractories play a crucial role in enhancing the efficiency of ladle and tundish preheating stations. These refractories are specifically designed to withstand high temperatures and thermal shocks, making them ideal for use in preheating applications. One key way in which monolithic refractories improve efficiency is by providing excellent heat insulation. These refractories have low thermal conductivity, meaning they minimize heat loss from the preheating station to the surroundings. As a result, more heat is retained within the ladle or tundish preheating station, leading to faster and more efficient heating of the vessel. Additionally, monolithic refractories offer superior heat retention properties. Once heated, these refractories have the ability to store and release heat gradually over time. This characteristic allows for a more consistent and controlled heating process in the ladle or tundish preheating station. By maintaining a stable temperature, the refractories ensure that the vessel is heated uniformly and prevent thermal shocks that could lead to cracking or other damage. Furthermore, monolithic refractories have excellent resistance to chemical reactions and erosion caused by molten metals and slag. Ladles and tundishes are often exposed to corrosive environments, and the use of monolithic refractories helps to protect against degradation and extend the lifespan of the preheating station. This durability reduces the need for frequent maintenance and replacement, leading to cost savings and improved overall efficiency. In summary, monolithic refractories improve the efficiency of ladle and tundish preheating stations by providing excellent heat insulation, heat retention, and resistance to chemical reactions. These properties result in faster and more uniform heating, reduced heat loss, and increased durability of the preheating station. Ultimately, these benefits contribute to improved productivity and cost-effectiveness in the steelmaking process.
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Quality safety Silicon Metal/metal silicon 553 grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 m.t/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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