Refractory Precast Shapes For EAF Roof
- Ref Price:
-
$1,262.61 - 1,543.19
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 MT m.t.
- Supply Capability:
- 5000 Tons Per Month m.t./month
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General Information of Refractory Precast Shapes For EAF Roof
Made as per international standards, FIREF refractory pre-cast shapes for EAF roof is known for its excellent corrosion and scouring resistance of iron steel, long operating life and easy execution and mending. Further, the sizes could be customed.
Technical data of Refractory Precast Shapes For EAF Roof
Item | Refractory Precast Shapes For EAF Roof | |
Al2O3(%)≥ | 82 | |
MgO(%)≥ | — | |
CaO(%)≤ | 2 | |
SiO2(%)≤ | — | |
Fe2O3(%)≥ | — | |
Cr2O3 | — | |
Bulk Density （g/cm3）≥ | 110℃×24h | 2.9 |
1600℃×3h | — | |
C.C.S. (MPa)≥ | 110℃×24h | 30 |
1600℃×3h | — | |
M.O.R.(MPa)≥ | 110℃×24h | 6 |
1600℃×3h | — | |
Grain Size Distribution (%) | — | |
Heavy Burn Line Rate(1300℃×3h)(%) | — | |
Mould and Test Room of Refractory Precast Shapes For EAF Roof
Feature of Refractory Precast Shapes For EAF Roof
Excellent corrosion and scouring resistance of iron steel
Easy execution and mending
Application of Refractory Precast Shapes For EAF Roof
FIREF refractory pre-cast shapes for EAF roof can be used for in situ casting or pre-casting for tri-angle area of UHP EAF roof.
- Q:How do monolithic refractories enhance the performance of ladle and tundish purging systems?
- The performance of ladle and tundish purging systems is greatly improved by the use of monolithic refractories. These refractories offer various advantages in enhancing the efficiency and effectiveness of the purging process. To begin with, the thermal insulation properties of monolithic refractories are exceptional. When impurities and gases need to be eliminated from molten metal, high temperatures are necessary. By utilizing monolithic refractories, heat loss is minimized, and the desired temperature within the system is maintained. This ensures that the purging process is carried out effectively and efficiently. Furthermore, monolithic refractories possess superior resistance to erosion and corrosion. The molten metal and purging gases can be corrosive and abrasive, making it essential for the lining to withstand such harsh conditions. Monolithic refractories are specifically designed to endure these circumstances, preventing erosion and corrosion. This contributes to the longevity of the ladle and tundish purging systems, reducing the need for frequent repairs or replacements. Additionally, monolithic refractories provide remarkable strength and stability. As molten metal and purging gases move within the system, significant mechanical stresses are experienced. The use of monolithic refractories ensures that the lining remains structurally sound, preventing any deformation or failure under these conditions. This guarantees smooth and uninterrupted purging operations, thus enhancing the overall performance of the system. Moreover, the installation and maintenance of monolithic refractories are straightforward. Unlike traditional brick and mortar refractories, monolithic refractories can be easily applied as a single, uniform layer. This simplifies the installation process and reduces the time and effort required for maintenance. Any necessary repairs or replacements can be conducted more efficiently, resulting in minimal downtime and maximum productivity for the ladle and tundish purging systems. In conclusion, monolithic refractories significantly improve the performance of ladle and tundish purging systems by providing excellent thermal insulation, erosion and corrosion resistance, strength and stability, as well as ease of installation and maintenance. These properties contribute to the efficient and effective removal of impurities and gases from molten metal, ensuring high-quality output and optimizing the overall productivity of the purging process.
- Q:How do monolithic refractories mitigate heat loss in iron and steel operations?
- Monolithic refractories mitigate heat loss in iron and steel operations by creating a strong and continuous lining that insulates the furnace or kiln, reducing the transfer of heat to the surrounding environment. This lining is made of a single, seamless material, which eliminates joints or gaps that could allow heat to escape. Additionally, monolithic refractories have high thermal conductivity and low thermal expansion, allowing them to withstand extreme temperatures while minimizing heat loss.
- Q:How do monolithic refractories perform in torpedo ladle applications?
- Monolithic refractories perform exceptionally well in torpedo ladle applications due to their high thermal shock resistance, excellent erosion and corrosion resistance, and superior mechanical strength. They can withstand the extreme temperatures and aggressive molten metal environment inside the torpedo ladle, ensuring long-lasting and reliable performance. Additionally, monolithic refractories offer ease of installation and maintenance, making them a preferred choice in torpedo ladle applications.
- Q:How do monolithic refractories withstand mechanical stress in the iron and steel industry?
- Monolithic refractories are designed to withstand mechanical stress in the iron and steel industry through their unique composition and properties. These refractories are made up of a single, uniform structure, as opposed to traditional brick-like refractories that consist of multiple pieces. This monolithic structure provides several advantages in terms of mechanical stress resistance. Firstly, monolithic refractories possess a higher strength and density compared to traditional refractories. This allows them to better withstand the mechanical forces exerted during various processes in the iron and steel industry, such as the movement of molten metal, the impact of scrap materials, or the pressure from gases and liquids. Their superior strength and density help prevent cracking, deformation, or failure under these stress conditions. Additionally, monolithic refractories offer excellent thermal shock resistance, which is crucial in the iron and steel industry. The rapid heating and cooling cycles experienced in processes like steelmaking or iron casting can cause thermal stress on refractories. However, the monolithic structure of these refractories allows for better thermal conductivity and expansion, reducing the risk of thermal shock damage. This ability to withstand thermal stress contributes to their overall mechanical stress resistance. Moreover, monolithic refractories can be customized and applied on-site, providing a seamless lining that eliminates joints or weak spots. This seamless application ensures a more uniform distribution of stress and prevents the formation of cracks or gaps that could weaken the refractory lining. By eliminating these vulnerabilities, monolithic refractories enhance their ability to resist mechanical stress in the demanding conditions of the iron and steel industry. In conclusion, monolithic refractories withstand mechanical stress in the iron and steel industry through their high strength and density, superior thermal shock resistance, and seamless application. These properties enable them to endure the intense mechanical forces encountered during various processes, ensuring the longevity and efficiency of refractory linings in this demanding industry.
- Q:How do monolithic refractories enhance the performance of ladles and tundishes?
- Monolithic refractories have a crucial role in enhancing the performance of ladles and tundishes in multiple ways. To begin with, their high thermal stability and resistance to thermal shock are well-known. When ladles and tundishes are subjected to extreme temperatures and thermal cycling during the transfer of molten metal, monolithic refractories provide exceptional insulation and structural integrity. This ensures that the ladles and tundishes can endure these harsh conditions without suffering from cracks or failures. Additionally, monolithic refractories offer outstanding resistance to corrosion. In the environments of ladles and tundishes, the presence of molten metal, slag, and other chemicals can lead to corrosion and erosion of the lining. However, monolithic refractories are specifically designed to resist these corrosive agents, extending the lifespan of ladles and tundishes and reducing the need for frequent repairs or replacements. Another advantage of monolithic refractories lies in their ability to form a seamless and tight lining. Unlike traditional brick or tile linings, which can deteriorate over time due to joints, monolithic refractories are typically applied as a single, continuous layer. This seamless lining significantly reduces the risk of metal and slag penetration, ensuring better containment of the molten metal and preventing contamination. Furthermore, monolithic refractories offer versatility and ease of installation. They can be easily shaped and applied to various complex geometries, allowing for customized linings in ladles and tundishes. This versatility also enables faster installation and reduces downtime during maintenance and repairs. In conclusion, the utilization of monolithic refractories in ladles and tundishes leads to improved performance, increased operational efficiency, and reduced costs. Their ability to withstand extreme temperatures, resist corrosion, provide a tight lining, and offer ease of installation makes them the preferred choice in the steel and foundry industries.
- Q:What are the recent developments in monolithic refractories for the iron and steel industry?
- Over the past few years, significant progress has been made in the field of monolithic refractories for the iron and steel industry. These refractories are vital in the production of iron and steel, as they provide insulation and withstand high temperatures in furnaces and other equipment. One major advancement is the development of advanced alumina-based castables. These castables offer exceptional thermal shock resistance, high strength, and excellent corrosion resistance, making them perfect for the iron and steel industry. They can endure extreme temperatures and mechanical stress, resulting in longer service life and less maintenance downtime. Another noteworthy development is the introduction of low-cement and ultra-low cement castables. Compared to traditional castables, these have reduced cement content, leading to improved refractory properties. They have higher hot strength, lower porosity, and increased resistance to slag and metal corrosion. This enhances productivity and efficiency in the iron and steel manufacturing processes. Moreover, insulating refractories have seen advancements in their usage. Insulating castables and bricks are now used to line ladles, tundishes, and other equipment, providing better insulation and energy efficiency. These materials help reduce heat loss and improve thermal efficiency, resulting in cost savings and reduced environmental impact. Additionally, there have been significant improvements in the installation techniques of monolithic refractories. Traditional brick lining methods require skilled labor and a longer installation time. However, the introduction of gunning and shotcreting techniques has made the process faster and more efficient. These techniques involve spraying refractory materials onto the lining surface, ensuring better adherence and reducing the risk of lining failure. Overall, recent developments in monolithic refractories for the iron and steel industry have focused on enhancing thermal shock resistance, corrosion resistance, insulation properties, and installation techniques. These advancements have led to increased efficiency, reduced downtime, and improved productivity in the iron and steel manufacturing processes.
- Q:How can the lifespan of monolithic refractories be extended?
- There are several measures that can be taken to extend the lifespan of monolithic refractories. To begin with, it is essential to ensure their proper installation. This involves following the guidelines provided by the manufacturer, using appropriate equipment and techniques, and ensuring correct curing and drying processes. By installing them correctly, the monolithic refractories become better equipped to withstand thermal stresses and chemical attacks, thus prolonging their lifespan. Regular maintenance is also crucial in extending the lifespan of monolithic refractories. This includes conducting routine inspections to identify any signs of wear, erosion, or cracking. Timely repairs or replacements should be carried out to prevent further damage. Moreover, applying protective coatings or sealants can help reduce erosion and chemical attacks, thereby enhancing the refractories' longevity. Another important aspect is implementing effective operating practices. This involves maintaining optimal operating conditions, such as controlling temperature fluctuations, to minimize thermal shocks and reduce the risk of spalling or cracking. Proper material selection is also key, as using refractories 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. Careful handling should be exercised, avoiding excessive impact or rough treatment that could cause damage. Lastly, it is beneficial to seek guidance from experienced professionals or consult refractory suppliers. Their expertise can provide valuable insights and guidance on best practices for extending the lifespan of monolithic refractories. By making informed decisions regarding installation, maintenance, and operating practices, the refractories' lifespan can be maximized and their performance optimized.
- Q:How do monolithic refractories withstand high temperatures and thermal shocks?
- Monolithic refractories are able to withstand high temperatures and thermal shocks due to their unique composition and design. These refractories are made from a single piece or structure, hence the term "monolithic". This structural integrity allows them to resist the extreme heat and sudden temperature changes experienced in high-temperature applications. One key factor that enables monolithic refractories to withstand high temperatures is the use of high-quality raw materials. These materials are carefully selected for their ability to withstand heat and thermal stress. Common components include silica, alumina, magnesia, and other refractory minerals with high melting points. Additionally, the manufacturing process plays a crucial role in enhancing the thermal resistance of monolithic refractories. The raw materials are mixed with binders, such as clay or cement, to form a homogenous mixture. This mixture is then shaped and installed in its final position, either by pouring or gunning, depending on the application. The binder ensures that the refractory maintains its shape and integrity during thermal cycling. Furthermore, monolithic refractories possess excellent thermal conductivity and low thermal expansion properties. This means that they can efficiently transfer and dissipate heat, minimizing the risk of thermal stress and cracking. The low thermal expansion also reduces the likelihood of spalling or delamination, which is crucial for withstanding thermal shocks. Another factor contributing to the high-temperature resistance of monolithic refractories is their ability to form a protective layer or slag at the surface. This layer acts as a barrier, preventing the refractory from direct contact with corrosive materials or aggressive atmospheres. It helps to improve the refractory's longevity and resistance to thermal shocks. Overall, the combination of high-quality raw materials, careful manufacturing techniques, and beneficial thermal properties enables monolithic refractories to withstand high temperatures and thermal shocks. These refractories are widely used in various industries, including steel, cement, glass, and petrochemical, where they serve as reliable linings in furnaces, kilns, and other high-temperature equipment.
- Q:What are the common challenges faced by monolithic refractories in the iron and steel industry?
- Monolithic refractories play a crucial role in the iron and steel industry, where they are extensively used in various applications such as lining furnaces, ladles, and tundishes. However, these materials also face several common challenges in this industry. One of the major challenges is thermal shock. Monolithic refractories are exposed to extreme temperature variations, particularly during the start-up and shut-down phases of the production process. The rapid heating and cooling cycles can cause thermal stress, leading to cracking and spalling. To combat this challenge, refractory manufacturers develop high-quality monolithic materials with enhanced thermal shock resistance. Another significant challenge is corrosion. The iron and steel industry involves the use of various aggressive materials such as molten metal, slag, and gases, which can chemically attack the refractory lining. This corrosion can lead to material degradation, erosion, and reduced service life. To address this issue, specialized monolithic refractories with excellent corrosion resistance are employed, often containing additives that can withstand the corrosive environment. Abrasion is also a common challenge faced by monolithic refractories in the iron and steel industry. The movement of raw materials, molten metal, and slag can cause mechanical wear on the refractory lining, resulting in loss of material and compromised performance. Refractory manufacturers develop abrasion-resistant monolithic materials that can withstand the intense wear and tear, ensuring prolonged service life. Furthermore, the iron and steel industry often requires refractories with good thermal conductivity. This is crucial to efficiently transfer heat and maintain optimal operating conditions. Achieving the right balance between thermal conductivity and mechanical strength can be challenging, as refractories with high thermal conductivity often exhibit lower mechanical strength. Therefore, selecting the appropriate monolithic refractory with the desired thermal conductivity properties is crucial for achieving optimal performance. Lastly, monolithic refractories also face challenges related to installation and maintenance. Due to their liquid or semi-liquid nature, the application of monolithic refractories requires skilled personnel and careful installation techniques. Moreover, periodic maintenance and repair are essential to ensure the longevity and performance of the refractory lining. Regular inspections, repairs, and proper curing techniques are necessary to mitigate these challenges and optimize the refractory's performance. In conclusion, monolithic refractories in the iron and steel industry face challenges such as thermal shock, corrosion, abrasion, thermal conductivity, and installation/maintenance. Addressing these challenges through the development of specialized refractory materials and employing proper installation and maintenance techniques is crucial for ensuring efficient and reliable performance in this demanding industry.
- Q:How do monolithic refractories prevent heat loss through convection?
- Monolithic refractories effectively prevent heat loss through convection due to their unique composition and structure. Unlike traditional refractory bricks, which often have gaps and are porous, monolithic refractories are made of a single, seamless structure. This eliminates any possible pathways for hot gases or air to circulate and carry away heat by convection. Furthermore, monolithic refractories have a high thermal conductivity and are often dense, making them excellent conductors of heat. This allows them to rapidly absorb and distribute heat, minimizing the temperature difference between the hot surface and the surrounding environment. By reducing the temperature gradient, monolithic refractories decrease the driving force for convection, resulting in reduced heat loss through this mechanism. Moreover, monolithic refractories can be applied as a continuous lining, conforming to the shape of the equipment or furnace being protected. This seamless application eliminates joints or gaps where hot gases or air could escape and carry away heat. The uniform and uninterrupted lining further decreases the potential for convection heat loss. In summary, monolithic refractories are specifically designed to create a barrier that hinders the movement of hot gases or air, effectively minimizing heat loss through convection. Their dense composition, high thermal conductivity, and seamless application all contribute to their effectiveness in preventing heat loss through this mechanism.
Our products are mainly mullite brick, high alimina brick acid-resistant refractory brick, phosphate abrasive brick and andalusite brick, with annual output of 20000 tons heavy refractory, the tunnel kiln with 80m in length is mainly for manufacturing of top quality refractory, such as corundum products, alumina products and spinel products. In order to promote sustainable development, we will insist on scientific development.
1. Manufacturer Overview |
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|---|---|
| Location | Henan, China |
| Year Established | 2007 |
| Annual Output Value | Above US$ 60 Million |
| Main Markets | Mid East; Eastern Europe; North America |
| Company Certifications | ISO 9001:2008 |
2. Manufacturer Certificates |
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|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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|---|---|
| a)Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 31% - 50% |
| No.of Employees in Trade Department | 21-50 People |
| Language Spoken: | English; Chinese |
| b)Factory Information | |
| Factory Size: | Above 36,000 square meters |
| No. of Production Lines | Above 5 |
| Contract Manufacturing | OEM Service Offered |
| Product Price Range | Average |
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Refractory Precast Shapes For EAF Roof
- Ref Price:
-
$1,262.61 - 1,543.19
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 MT m.t.
- Supply Capability:
- 5000 Tons Per Month 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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