Quality safety Silicon Metal/metal silicon 553 grade
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- 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 common manufacturing processes used for monolithic refractories?
- The common manufacturing processes used for monolithic refractories include mixing the raw materials, shaping the mixture into the desired form, and then curing or firing it at high temperatures to achieve the desired strength and properties. Some specific processes used are casting, gunning, ramming, and spraying.
- Q: How do monolithic refractories perform in aluminum holding furnace applications?
- Monolithic refractories perform exceptionally well in aluminum holding furnace applications due to their high thermal conductivity, excellent resistance to thermal shock, and superior mechanical strength. They can withstand the extreme temperatures and harsh chemical environments found in these furnaces, ensuring long-lasting and efficient operations. Additionally, monolithic refractories offer easy installation and maintenance, making them a preferred choice in aluminum holding furnace applications.
- Q: How do monolithic refractories resist high temperatures?
- Monolithic refractories, with their unique composition and structure, are specifically designed to withstand high temperatures. Unlike traditional refractory bricks, which are made up of multiple pieces, these refractories are created from a single material or piece. The primary factor contributing to the high temperature resistance of monolithic refractories is their elevated melting point. Materials such as alumina, silica, and magnesia, which have melting points ranging from 1650°C to 2000°C, are utilized in their production. This characteristic allows the refractories to endure extreme temperatures without experiencing significant deformation or melting. Moreover, monolithic refractories possess exceptional thermal stability. They exhibit low thermal conductivity, enabling them to effectively insulate against heat transfer. As a result, these refractories can maintain their structural integrity even when exposed to rapid temperature changes or thermal shocks. Furthermore, the monolithic nature of these refractories grants them enhanced resistance to thermal stress. Unlike traditional refractory bricks, they lack joints or seams that are susceptible to thermal expansion and contraction. Consequently, they exhibit greater resistance to cracking or spalling when subjected to high temperatures. Additionally, monolithic refractories have the ability to develop a protective layer or slag on their surface when exposed to elevated temperatures. This slag acts as a barrier, preventing direct contact between the refractory material and the hot gases or molten metals. Consequently, the risk of chemical reactions or corrosion is reduced. In conclusion, the combination of high melting point, thermal stability, resistance to thermal stress, and the capacity to form a protective slag makes monolithic refractories highly effective in withstanding high temperatures. They find wide applications in various industries, including steel, cement, glass, and petrochemical, where they encounter extreme heat conditions.
- Q: What are the different techniques for installing monolithic refractories?
- Installing monolithic refractories can be accomplished using various techniques, each with its own advantages and suitability for different applications. Some commonly employed methods are as follows: 1. Casting: This involves creating a slurry by mixing the refractory material with water or a binder. The resulting mixture is then poured into molds or directly onto the prepared surface. Once set and hardened, it forms a solid monolithic structure. 2. Gunning: By utilizing a gunning machine, the refractory material is sprayed onto the surface. The material is combined with water or a binder to form a wet mix, which is then propelled onto the surface at high velocity. Gunning is commonly used for on-site repairs or lining larger areas. 3. Ramming: In this technique, the refractory material is compacted into place using a pneumatic or manual ramming tool. Prior to ramming, the material is typically preheated to decrease moisture content and enhance workability. Ramming is often employed for lining smaller areas or filling gaps between bricks or precast shapes. 4. Shotcreting: Similar to gunning, shotcreting involves using a dry mix of refractory material. The dry mix is combined with water or a binder just before being sprayed onto the surface using a high-pressure nozzle. Shotcreting is frequently used for lining larger areas or creating intricate shapes. 5. Troweling: This technique entails applying the refractory material onto the surface using a trowel or similar tool. The material used is typically a wet mix that is spread and smoothed manually. Troweling is commonly employed for patching or repairing small areas, as well as for adding finishing touches. 6. Vibrating: By using a vibrating tool or vibrator, the refractory material is compacted and any air pockets are eliminated. Vibrating is often used to improve the density and strength of the monolithic refractory after it has been installed using other techniques. It is essential to consider 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 when selecting the appropriate technique. Additionally, proper surface preparation and adherence to installation guidelines are crucial to ensure the effectiveness and longevity of the monolithic refractory.
- Q: How do monolithic refractories protect the lining of ladles and tundishes?
- Monolithic refractories protect the lining of ladles and tundishes by forming a strong and durable barrier against high temperatures, chemical reactions, and mechanical stresses. These refractories are designed to be resistant to thermal shock and erosion, ensuring that the lining remains intact and unaffected by the molten metal or slag. They also provide insulation, minimizing heat loss and reducing energy consumption. Overall, monolithic refractories act as a reliable shield, extending the lifespan of the ladles and tundishes and preventing any detrimental effects on the lining.
- Q: What are the considerations for repairing and relining monolithic refractories?
- When it comes to repairing and relining monolithic refractories, there are several key considerations that need to be taken into account. Firstly, it is important to assess the extent of the damage or wear to the refractory lining. This can be done through visual inspection, as well as non-destructive testing techniques such as ultrasonic or thermal imaging. Understanding the severity and location of the damage will help in determining the appropriate repair or relining method. Another consideration is the type of monolithic refractory material being used. Different materials have different properties and performance characteristics, and this needs to be considered when selecting the repair method. For example, some materials may require high-temperature curing or specialized equipment for installation. The operating conditions of the refractory lining also need to be taken into account. Factors such as temperature, chemical exposure, and mechanical stress can affect the performance and longevity of the lining. The repair or relining method should be selected to ensure that it can withstand these conditions and provide long-lasting protection. Additionally, the downtime and cost implications of the repair or relining process need to be considered. Some methods may require longer curing or drying times, which can result in extended shutdown periods. It is important to weigh the benefits of the repair or relining against the potential production losses and expenses associated with the downtime. Lastly, it is crucial to follow industry standards and guidelines when repairing or relining monolithic refractories. This ensures that the repairs are done correctly and in a safe manner, minimizing the risk of future damage or failure. Consulting with refractory experts or manufacturers can provide valuable insights and guidance in this regard. In conclusion, the considerations for repairing and relining monolithic refractories include assessing the extent of damage, understanding the properties of the refractory material, considering the operating conditions, evaluating downtime and cost implications, and following industry standards and guidelines.
- Q: How can the lifespan of monolithic refractories be extended?
- The lifespan of monolithic refractories can be extended through various measures, including proper installation, regular maintenance, and implementing effective operating practices. Firstly, it is crucial to ensure proper installation of monolithic refractories. This involves following the manufacturer's guidelines, using appropriate equipment and techniques, and ensuring correct curing and drying processes. When installed correctly, monolithic refractories are better equipped to withstand thermal stresses and chemical attacks, thereby prolonging their lifespan. Regular maintenance plays a key role in extending the lifespan of monolithic refractories. This includes routine inspections to identify any signs of wear, erosion, or cracking. Timely repairs or replacements should be carried out to prevent further damage. Additionally, applying protective coatings or sealants can help reduce erosion and chemical attacks, further enhancing the refractories' longevity. Implementing effective operating practices is another crucial aspect. Maintaining optimal operating conditions, such as controlling temperature fluctuations, can minimize thermal shocks and reduce the risk of spalling or cracking of the refractories. Proper material selection is also important, as using refractories that are specifically designed for the intended application can increase their resistance to chemical attacks and extend their lifespan. Furthermore, ensuring proper handling and storage of monolithic refractories is essential. They should be stored in a dry, clean environment, away from moisture and extreme temperatures, to prevent premature degradation. Handling should be done with care, avoiding excessive impact or rough treatment that could cause damage. Finally, it is beneficial to engage with experienced professionals or consult with refractory suppliers to gain valuable insights and guidance on best practices for extending the lifespan of monolithic refractories. Their expertise can help in making informed decisions regarding installation, maintenance, and operating practices, ultimately maximizing the refractories' lifespan and optimizing their performance.
- Q: What are the typical applications of monolithic refractories in the iron and steel industry?
- Various applications within the iron and steel industry widely utilize monolithic refractories. These refractories, composed of a single material, offer numerous advantages including easy installation, thermal shock resistance, and excellent resistance to chemical attacks. Below are some typical applications of monolithic refractories in the iron and steel industry: 1. Blast Furnace: In blast furnaces, monolithic refractories line the interior and endure extreme temperatures and chemical reactions. They provide thermal insulation, prevent erosion, and resist the corrosive effects of molten iron and slag. 2. Ladles and Tundishes: Monolithic refractories line ladles and tundishes, vessels used for transporting and transferring molten metal. These refractories offer effective thermal insulation and resistance to erosion and chemical attacks, ensuring the integrity of the vessels. 3. Steelmaking Converters: Converters, essential in the steelmaking process to convert molten pig iron into steel, utilize monolithic refractories. These refractories provide protection against high temperatures and aggressive chemical environments encountered during the process. 4. Electric Arc Furnaces (EAF): Monolithic refractories line the walls and roofs of EAFs, used to recycle scrap steel by melting it. These refractories offer outstanding thermal insulation, resistance to slag erosion, and thermal shock resistance, ensuring the longevity and efficiency of the furnace. 5. Continuous Casting: Monolithic refractories find employment in the continuous casting process, where molten steel solidifies into a continuous slab or billet. These refractories line the walls and floors of the casting molds, providing thermal insulation and resistance to chemical attacks from the molten steel. 6. Reheating Furnaces: Monolithic refractories are used in reheating furnaces, which heat steel billets or ingots prior to further processing. These refractories provide insulation, high-temperature resistance, and ensure uniform heating of the metal. Overall, monolithic refractories play a crucial role in the iron and steel industry by providing reliable and durable linings in various applications. Their ability to withstand extreme temperatures, chemical attacks, and thermal shocks makes them indispensable for maintaining the integrity and efficiency of the production processes.
- Q: What are the challenges in repairing and maintaining monolithic refractories?
- One of the challenges in repairing and maintaining monolithic refractories is the difficulty in identifying and accessing damaged areas. Monolithic refractories are typically used in complex and intricate structures, making it challenging to locate and reach areas that require repair or maintenance. Another challenge is the high temperatures involved, as monolithic refractories are often exposed to extreme heat. This requires specialized expertise and equipment to ensure safe and effective repairs. Additionally, the composition and application of monolithic refractories can vary, making it essential to understand the specific type being used in order to perform accurate repairs and maintenance. Overall, the challenges lie in the complexity of the structures, the extreme temperatures, and the need for specialized knowledge and tools.
- Q: How are monolithic refractories installed and repaired in iron and steel production facilities?
- Monolithic refractories in iron and steel production facilities are installed by first preparing the surface by removing any existing refractory materials and cleaning it thoroughly. The monolithic refractory is then mixed with water to form a workable consistency and applied to the surface using various methods such as spraying, troweling, or casting. After installation, the refractory is allowed to cure and dry before being heated gradually to the desired operating temperature. In terms of repair, damaged or worn-out monolithic refractories are typically removed by chipping or cutting, and the surface is again cleaned. The new refractory material is then mixed and applied to the repaired area using the same techniques as installation. It is important to ensure proper curing and drying of the repaired refractory before subjecting it to heat. Regular inspection and maintenance are crucial to identify any potential issues and prevent major repairs or replacement in the future.
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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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