Lightweight Castable Refractory Castable by Casting
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- Shanghai
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- TT or LC
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- 20000 kg
- Supply Capability:
- 10000000000 kg/month
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General Information of Lightweight castable
Lightweight castable is made from lightweight aggregate of lightweight ceramic grains and sand grog and floating beads, mixed with binding agent of aluminate cement and superfine powder, having different aggregates of different materials to meet the design requirements.
Features of Lightweight Castable
◆High strength
◆Good wear resistance
◆Excellent heat-insulation
◆Small reheating liner change
Application of Lightweight Castable
Chimney linings and heat-insulating
Wear proof layers of the
Technical Data of Lightweight Castable
Technical Data of Lightweight Castable | ||||||
Physical Properties | LC-1.4 | LC-1.2 | LC-1.0 | LC-0.9 | LC-0.8 | |
Classification Temperature | ℃ | 1200 | 1100 | 1100 | 1000 | 1000 |
℉ | 2190 | 2010 | 2010 | 1830 | 1830 | |
Buk Densiy(g/cm) | 110℃×24h | 1.4 | 1.2 | 1.0 | 0.9 | 0.8 |
815cx3h | 1.3 | 1.1 | 0.9 | 0.8 | 0.7 | |
Compressive Strength (Mpa) | 110℃×24h | 12 | 10 | 7 | 4.5 | 4 |
815cx3h | 10 | 8 | 6 | 4 | 3 | |
Modulus of Rupture(Mpa) | 110℃×24h | 3 | 2 | 1.5 | 1.0 | 0.8 |
815cx3h | 2.5 | 1.5 | 1.0 | 0.8 | 0.5 | |
Permanent Liner Change (%) | 815℃×3h | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
Thermal Conductivity(W/m.k) | 350℃ | 0.35 | 0.30 | 0.25 | 0.23 | 0.21 |
Photo of Lightweight Castable
- Q:
- Enhanced properties have been achieved in the latest advancements of monolithic refractories for the iron and steel industry. These advancements are aimed at withstanding the extreme temperatures and harsh conditions associated with iron and steel production processes. One notable advancement is the utilization of advanced bonding systems that offer exceptional strength and resistance to thermal shock. These systems, including nano-bonding technology, contribute to the overall improvement in the performance and durability of monolithic refractories. Another significant development is the introduction of low cement castables. These castables contain a reduced amount of cement, resulting in enhanced high-temperature strength and erosion resistance. This advancement proves particularly valuable in applications within the iron and steel industry where thermal cycling and mechanical stress are common. Furthermore, the composition of monolithic refractories has seen advancements. The incorporation of advanced raw materials, such as high-quality aggregates and additives, has led to improved thermal conductivity, corrosion resistance, and thermal insulation properties. These developments allow for more efficient and sustainable iron and steel production processes. Additionally, recent advancements have been focused on the development of self-flow castables. These castables possess excellent flowability, facilitating easy installation and maintenance of refractory linings. This advancement not only reduces installation time and costs but also ensures improved lining performance. In conclusion, the latest advancements in monolithic refractories for the iron and steel industry have resulted in improved performance, durability, and efficiency. These advancements enable the industry to enhance its production processes, minimize downtime, and increase overall productivity.
- Q:
- Several key factors influence the erosion resistance of monolithic refractories. These factors encompass the chemical composition of the refractory material, the microstructure of the material, the temperature and environment in which it is utilized, and the mechanical properties of the material. The erosion resistance of monolithic refractories heavily relies on the chemical composition. The inclusion of specific chemical elements and compounds can enhance the refractory's resistance to erosion, while others may render it more susceptible. For instance, the addition of alumina (Al2O3) to the refractory composition can augment its erosion resistance by forming a protective layer on the surface. Conversely, the presence of impurities or excessive amounts of certain elements can weaken the refractory and heighten its susceptibility to erosion. The microstructure of the monolithic refractory is another critical factor affecting erosion resistance. The microstructure denotes the arrangement and distribution of particles within the refractory. A well-structured microstructure with a uniform particle distribution can provide superior erosion resistance as it ensures an even distribution of load when exposed to erosive forces. Conversely, a poorly structured microstructure with particle clusters or weak bonding may result in localized erosion and failure. Erosion resistance is significantly influenced by the temperature and environment in which the refractory is employed. High temperatures can induce thermal stresses, chemical reactions, and phase changes in the refractory material, all of which impact its erosion resistance. Additionally, the presence of corrosive gases, liquids, or slags can expedite erosion by promoting chemical reactions or attacking the refractory material, leading to its deterioration. Lastly, the mechanical properties of the monolithic refractory, including strength, hardness, and toughness, contribute to erosion resistance. A refractory with higher mechanical strength and hardness can withstand erosive forces more effectively than a weaker material. Similarly, increased toughness aids in the refractory's resistance to cracking or spalling when subjected to impact or thermal shock, reducing its vulnerability to erosion. To summarize, the erosion resistance of monolithic refractories is influenced by the chemical composition, microstructure, temperature and environment, and mechanical properties of the material. Understanding and optimizing these factors can facilitate the development of refractories with enhanced erosion resistance for diverse industrial applications.
- Q:
- The overall efficiency of steel ladle operations can be greatly improved by the use of monolithic refractories. These refractories, which are engineered materials installed as a single structure within the ladle, offer numerous advantages that directly contribute to operational efficiency. One key benefit of monolithic refractories is their exceptional thermal insulation properties. They have a low thermal conductivity, meaning they are effective at retaining and containing heat within the ladle. This insulation helps to maintain the desired temperature of the molten steel, preventing heat loss during transportation and reducing the need for frequent reheating. By minimizing heat loss, monolithic refractories enable a more efficient use of energy resources, resulting in cost savings and improved productivity. Moreover, monolithic refractories possess a high refractoriness, meaning they can withstand high temperatures without losing their structural integrity. This is crucial in steel ladle operations, where extreme temperatures are encountered during the steelmaking process. The high refractoriness of monolithic refractories ensures that they can withstand the intense heat and avoid any damage or failure of the ladle lining. This durability translates into reduced downtime and maintenance requirements, leading to increased operational efficiency. Additionally, monolithic refractories offer excellent resistance to chemical attack. The ladles used in steelmaking come into contact with various corrosive substances, such as molten metals, slag, and fluxes. The chemical resistance of monolithic refractories prevents them from reacting with these substances, ensuring the integrity and longevity of the ladle lining. This resistance to chemical attack reduces the need for repairs and replacements, minimizing downtime and improving overall operational efficiency. Furthermore, the installation of monolithic refractories is relatively quick and straightforward compared to traditional brick linings. This ease of installation saves time and labor costs, allowing for a faster turnaround between ladle operations. It enables steel manufacturers to optimize their production schedules and enhance overall operational efficiency. In conclusion, monolithic refractories play a significant role in improving the efficiency of steel ladle operations. Their thermal insulation properties, high refractoriness, resistance to chemical attack, and ease of installation all contribute to enhanced energy efficiency, reduced downtime, and increased productivity. By choosing to use monolithic refractories, steel manufacturers can achieve optimized ladle performance and ultimately improve their steelmaking process as a whole.
- Q:
- Monolithic refractories for soaking pit applications must meet several specific requirements. Firstly, they need to withstand high temperatures and thermal cycling. This means they must be able to endure temperatures exceeding 1500 degrees Celsius without significant degradation. The longevity and durability of the refractories depend on this capability. Secondly, the refractories must have good thermal shock resistance. Since soaking pits often experience rapid changes in temperature, the refractories must be able to handle these fluctuations without cracking or spalling. This is vital to maintain the refractories' integrity. Chemical attacks are another concern in soaking pit applications. Molten metal, slag, and other corrosive substances are present, so the refractories must have excellent chemical resistance. This prevents erosion and chemical reactions. Withstanding the corrosive effects of molten metal and slag, as well as potential chemical reactions, is crucial. Furthermore, mechanical stresses, such as abrasion and impact, occur in soaking pits due to the movement and handling of metal ingots. The monolithic refractories should possess good mechanical strength and abrasion resistance to withstand these stresses. They should be able to resist wear and tear caused by heavy loads and avoid any mechanical failure. Lastly, the refractories used in soaking pits should be easy to work with and install. This ensures efficient and effective lining of the pit, minimizing any gaps or cracks that could lead to heat loss or chemical penetration. In summary, monolithic refractories for soaking pit applications must meet specific requirements regarding high temperature resistance, thermal shock resistance, chemical resistance, mechanical strength, and ease of installation. Fulfilling these requirements guarantees that the refractories can withstand the harsh conditions of soaking pits and maintain their performance and integrity over an extended period.
- Q:
- The specific requirements of monolithic refractories for continuous casting applications include high thermal shock resistance, excellent erosion resistance, good thermal conductivity, low shrinkage, and high refractoriness. These refractories must also have good flowability and workability to ensure easy installation and maintenance. Additionally, they should have a high degree of chemical stability to withstand the harsh conditions of molten metal and slag in continuous casting processes.
- Q:
- Monolithic refractories are able to withstand the mechanical impacts in ladle lip applications due to their unique properties and composition. Firstly, monolithic refractories are made from a single, homogenous material, which provides them with a high level of structural integrity. This means that they are less vulnerable to cracking or breaking when subjected to mechanical impacts. Additionally, monolithic refractories often contain additives such as fibers or aggregates, which further enhance their resistance to mechanical stresses. These additives help to distribute the forces applied to the refractory material, reducing the concentration of stress points and increasing its overall durability. Furthermore, the application process of monolithic refractories allows for a seamless and continuous lining, eliminating the presence of joints or weak points that are susceptible to mechanical damage. This ensures a more uniform distribution of the impacts and enhances the material's ability to withstand them. Moreover, monolithic refractories can be designed with specific compositions and formulations that are tailored to resist mechanical impacts. Various binders and additives can be incorporated to enhance the material's toughness, impact resistance, and overall mechanical strength. Finally, the selection of monolithic refractories for ladle lip applications also takes into consideration the operating conditions, such as temperature and chemical exposure. By choosing refractories that are suitable for these conditions, their mechanical properties can be optimized to withstand the specific challenges posed by ladle lip applications. In summary, monolithic refractories are able to withstand mechanical impacts in ladle lip applications due to their homogenous structure, the inclusion of additives, the seamless application process, and the ability to customize their composition. These factors contribute to their ability to resist cracking, breaking, and other forms of mechanical damage, ensuring their longevity and effectiveness in ladle lip applications.
- Q:
- Using castables in the iron and steel industry offers several benefits. Firstly, castables have superb thermal insulation properties, which effectively maintain the temperature of the molten metal. This prevents heat loss and ensures efficient energy usage, resulting in cost savings. Additionally, castables exhibit exceptional refractory strength, enabling them to withstand extreme temperatures and harsh operating conditions. This durability prolongs the lifespan of the refractory lining, reducing the need for frequent repairs or replacements. Castables also offer versatility as they can be easily molded into various shapes and sizes, making them highly adaptable for different applications in the iron and steel industry. This flexibility allows for customization in designing the refractory lining to meet specific requirements. Furthermore, castables can be installed quickly and effortlessly, minimizing downtime during installation or maintenance. Their monolithic lining capability eliminates the need for individual bricks or tiles, saving time and effort. Castables are also resistant to chemical attacks from molten metal, slag, and other corrosive substances commonly encountered in the iron and steel industry. This ensures the integrity of the refractory lining and prevents contamination of the metal being processed. Moreover, castables typically require fewer raw materials compared to traditional refractory bricks or tiles, leading to cost savings in terms of material procurement, transportation, and storage. This makes castables a cost-effective solution. Lastly, the use of castables in the iron and steel industry enhances production efficiency by providing a smooth and uniform lining. This facilitates improved heat transfer, metal flow, and reduced downtime, ultimately increasing overall productivity. In conclusion, the advantages of using castables in the iron and steel industry encompass excellent thermal insulation, high refractory strength, versatility, easy installation, resistance to chemical attack, reduced material costs, and enhanced production efficiency. These benefits establish castables as the preferred choice for lining furnaces, ladles, tundishes, and other equipment in the iron and steel manufacturing process.
- Q:
- The specific composition and type of refractory material determine the typical operating temperatures for monolithic refractories. Generally, these refractories are designed to endure high temperatures ranging from 1500°C (2732°F) to 1800°C (3272°F) and sometimes even higher. Industries such as steelmaking, cement production, glass manufacturing, and petrochemical processing commonly utilize these refractories, subjecting them to extreme thermal conditions. Temperature limits vary for different types of monolithic refractories. For example, basic refractories made of magnesia or dolomite can withstand temperatures up to 1800°C (3272°F). Conversely, alumina-based refractories typically handle temperatures up to 1700°C (3092°F). Silicon carbide-based refractories exhibit even higher temperature resistance, with the capacity to endure temperatures exceeding 2000°C (3632°F). Choosing the appropriate monolithic refractory material is crucial, considering the specific operating temperature requirements of the application. Using refractories beyond their recommended temperature limits may result in thermal shock, spalling, reduced performance, equipment failure, or safety hazards. Therefore, it is essential to consult with refractory manufacturers or experts in the field to ensure the correct selection and optimal performance of monolithic refractories in high-temperature applications.
- Q:
- Monolithic refractories play a crucial role in improving the efficiency of ladle and tundish lining systems in several ways. Firstly, monolithic refractories are made from a single piece of material, which eliminates the need for joints or seams. This seamless construction ensures that there are no weak points in the lining system, reducing the risk of leakage or infiltration of molten metal. Additionally, monolithic refractories offer excellent thermal insulation properties. They have low thermal conductivity, meaning they can withstand high temperatures without transferring heat to the surrounding environment. This insulation capability minimizes heat loss from the ladle or tundish, allowing for better heat retention and energy efficiency. It also helps maintain the desired temperature of the molten metal, preventing premature solidification and maintaining the desired fluidity for casting. Furthermore, monolithic refractories offer superior resistance to chemical attacks from molten metal and slag. They have excellent corrosion resistance properties, ensuring that the lining remains intact and durable even when exposed to aggressive chemical reactions. This resistance to corrosion extends the lifespan of the lining system, reducing the frequency of maintenance and replacement, thereby improving overall efficiency and reducing downtime. Another advantage of monolithic refractories is their ease of installation. Unlike traditional brick or block linings, monolithic refractories can be applied as a single, uniform layer, making the installation process simpler and quicker. This reduces the time required for lining repairs or replacements, minimizing production interruptions and improving the overall operational efficiency of ladles and tundishes. In summary, monolithic refractories improve the efficiency of ladle and tundish lining systems by providing seamless construction, excellent thermal insulation, superior corrosion resistance, and easy installation. These characteristics ensure better heat retention, reduced heat loss, increased durability, and minimized downtime, resulting in improved productivity and cost-effectiveness for metal casting processes.
- Q:
- Monolithic refractories are specifically designed to resist abrasion in the iron and steel industry due to their unique composition and properties. These refractories are made from a single homogeneous material, which allows them to exhibit exceptional strength and durability when subjected to continuous abrasion. One of the key factors that contribute to the abrasion resistance of monolithic refractories is their high density. These refractories are manufactured with tightly packed particles, ensuring a solid and compact structure. This density helps to minimize wear and tear caused by the constant movement of materials, such as iron and steel, within the industry. Additionally, monolithic refractories often contain high levels of alumina, which is known for its excellent abrasion resistance. Alumina is a highly refractory material that can withstand high temperatures and mechanical stress without deteriorating. Its presence in monolithic refractories provides a protective layer that resists abrasion caused by the movement and impact of iron and steel particles. Moreover, monolithic refractories can be designed with specific additives and binders that further enhance their resistance to abrasion. These additives can include silicon carbide, mullite, or zirconia, which are known for their superior mechanical strength and ability to withstand wear. The binders used in the manufacturing process also contribute to the refractory's integrity and ability to withstand abrasion by providing a cohesive structure. Overall, the combination of high density, alumina content, specialized additives, and binders makes monolithic refractories highly resistant to abrasion in the iron and steel industry. These refractories are capable of withstanding the harsh conditions and constant movement of materials, ensuring longevity and efficiency in various applications within the industry.
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