Monolithic Refractories for Iron and Steel Industry - Hot-dip Zinc Coating Steel Building Roof Walls with Excellent Process Capability
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
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Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability
1.Structure of Hot-Dip Galvanized Steel Sheet Description：
Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.
2.Main Features of the Hot-Dip Galvanized Steel Sheet：
• Excellent process capability
• Smooth and flat surface
• Workability, durability
• Good visual effect
3.Hot-Dip Galvanized Steel Sheet Images
4.Hot-Dip Galvanized Steel Sheet Specification
Standard: ASTM, JIS,EN
Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570
Thickness: 0.18mm~5mm
Width: max 2000mm
Coil weight:3-12 MT
Coil ID:508/610mm
Surface structure: zero spangle, regular spangle or minimum spangle
Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed
5.FAQ of Hot-Dip Galvanized Steel Sheet
1.How to guarantee the quality of the products？
We have established the international advanced quality management system，every link from raw material to final product we have strict quality test.
2. How long can we receive the product after purchase?
Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.
- Q: What are the main factors affecting the thermal expansion of monolithic refractories?
- The thermal expansion of monolithic refractories is influenced by various factors. These factors comprise the type of refractory material, the temperature range, the chemical composition, and the physical structure of the refractory. To begin with, the thermal expansion behavior of a refractory is significantly determined by its type of material. Different types of refractories, such as alumina-based, silica-based, and magnesia-based refractories, possess varying coefficients of thermal expansion (CTE). For instance, alumina-based refractories generally exhibit a lower CTE in comparison to silica-based refractories. Consequently, the choice of refractory material holds great influence over its thermal expansion characteristics. Secondly, the thermal expansion of a refractory is affected by the temperature range to which it is exposed. As the temperature rises, the refractory material expands due to the absorption of thermal energy. However, different refractories demonstrate different expansion behaviors depending on temperature. Some refractories may exhibit a linear or near-linear expansion with temperature, while others may display non-linear or step-wise expansion. Hence, the temperature range of operation is a critical factor in determining the suitability of a refractory for a specific application. The chemical composition of the refractory also has an impact on its thermal expansion. The presence of various chemical elements and compounds in the refractory material can influence its expansion behavior. For instance, the addition of specific oxides, like magnesia or zirconia, can modify the CTE of the refractory. Similarly, impurities or variations in the chemical composition can introduce discrepancies in expansion characteristics among refractories of the same type. Lastly, the physical structure of the refractory, encompassing factors such as porosity, density, and microstructure, can influence thermal expansion. The existence of open or closed pores within the refractory can affect its ability to expand uniformly under thermal stress. The density of the refractory also plays a role, as denser refractories tend to have lower thermal expansion. Moreover, the microstructure, including grain size and orientation, can impact the overall expansion behavior of the refractory. To conclude, the primary factors influencing the thermal expansion of monolithic refractories include the type of refractory material, temperature range, chemical composition, and physical structure. A comprehensive understanding of these factors is crucial in selecting the appropriate refractory for a specific application to ensure optimal performance and durability.
- Q: How do monolithic refractories perform in ladle lining applications in the iron and steel industry?
- Monolithic refractories are widely used in ladle lining applications in the iron and steel industry due to their excellent performance and durability. These refractories, which are made from a single material composition, offer numerous advantages over traditional brick linings. One of the key benefits of monolithic refractories in ladle lining applications is their superior resistance to thermal shock. Ladles in the iron and steel industry are subjected to extreme temperature fluctuations during the steelmaking process, including the pouring of molten metal and the subsequent cooling. Monolithic refractories are specifically designed to withstand these rapid temperature changes without cracking or spalling, ensuring the integrity of the ladle lining. In addition to thermal shock resistance, monolithic refractories also exhibit excellent resistance to chemical attack. Ladles in the iron and steel industry are exposed to highly corrosive molten metal and slag, which can degrade the lining materials over time. However, monolithic refractories are formulated with high-quality raw materials that offer exceptional chemical stability, preventing the erosion and penetration of corrosive substances. Furthermore, monolithic refractories provide superior mechanical strength compared to traditional brick linings. This is particularly important in ladle lining applications, as the lining needs to withstand the weight of the molten metal and the mechanical stresses associated with ladle handling and transportation. Monolithic refractories have excellent load-bearing capabilities, ensuring the structural integrity of the ladle lining even under heavy loads. Another advantage of monolithic refractories is their ease of installation. Unlike brick linings that require meticulous bricklaying, monolithic refractories can be installed using various techniques, such as gunning or casting, allowing for faster and more efficient lining repairs or replacements. This reduces downtime during ladle maintenance, leading to increased productivity and cost savings for iron and steel manufacturers. Overall, monolithic refractories perform exceptionally well in ladle lining applications in the iron and steel industry. Their resistance to thermal shock and chemical attack, superior mechanical strength, and ease of installation make them an ideal choice for ensuring the longevity and reliability of ladles in steelmaking operations.
- Q: What are the key trends in the use of monolithic refractories in the iron and steel industry?
- There are several key trends in the use of monolithic refractories in the iron and steel industry that are worth noting. Firstly, there is a growing demand for monolithic refractories due to their superior performance characteristics compared to traditional brick refractories. Monolithic refractories offer higher thermal shock resistance, better insulation properties, and improved resistance to chemical attacks. This has led to their increased usage in various applications within the iron and steel industry. Secondly, there is a shift towards the use of low-cement and ultra-low cement castables in monolithic refractories. These materials have a reduced cement content, resulting in improved refractory properties such as higher strength, better corrosion resistance, and increased resistance to thermal spalling. This trend is driven by the need to enhance the overall efficiency and durability of refractory linings in iron and steel manufacturing processes. Another important trend is the development of advanced monolithic refractories with enhanced sustainability and environmental performance. The iron and steel industry is under increasing pressure to reduce its carbon footprint and minimize environmental impact. As a result, there is a growing emphasis on the use of environmentally friendly binders and additives in monolithic refractories. These new materials not only offer excellent refractory properties but also contribute to the industry's sustainability goals. Furthermore, there is a rising focus on the development of monolithic refractories that can withstand extreme operating conditions. Iron and steel manufacturing processes involve high temperatures, aggressive chemical environments, and severe mechanical stresses. Therefore, there is a need for monolithic refractories that can endure these harsh conditions without compromising their performance. The industry is investing in research and development to create refractories that provide exceptional resistance to thermal shock, abrasion, and erosion. Lastly, there is an increasing adoption of digital and smart technologies in the monitoring and maintenance of monolithic refractories. With the advancements in sensor technology and data analytics, it is now possible to collect real-time data on the condition and performance of refractory linings. This allows for proactive maintenance, early detection of potential issues, and optimization of refractory usage, resulting in improved operational efficiency and cost savings. In conclusion, the key trends in the use of monolithic refractories in the iron and steel industry include the demand for superior performance, the shift towards low-cement and ultra-low cement castables, the development of sustainable materials, the focus on extreme operating conditions, and the adoption of digital and smart technologies for monitoring and maintenance. These trends reflect the industry's continuous efforts to enhance the efficiency, durability, and environmental sustainability of refractory linings in iron and steel manufacturing processes.
- 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: How do monolithic refractories improve the thermal efficiency of iron and steel furnaces?
- Monolithic refractories improve the thermal efficiency of iron and steel furnaces by providing superior insulation and heat containment properties. These refractories are designed to withstand extreme temperatures and resist thermal shock, ensuring minimal heat loss from the furnace. Additionally, monolithic refractories have low thermal conductivity, allowing for better heat distribution and retention within the furnace. This enhanced thermal efficiency leads to reduced energy consumption and higher productivity in the iron and steel manufacturing process.
- Q: How are monolithic refractories different from traditional refractory bricks?
- Monolithic refractories are different from traditional refractory bricks because they are not pre-fabricated into brick shapes. Instead, they are supplied as a ready-mix or ready-to-use material that can be directly applied on-site. This eliminates the need for complex brick-laying processes and allows for a more flexible and efficient installation. Monolithic refractories also have superior thermal shock resistance and can withstand higher temperatures, making them ideal for demanding industrial applications.
- Q: How do monolithic refractories contribute to the reduction of emissions in iron and steel plants?
- The role of monolithic refractories in iron and steel plants is crucial for reducing emissions and addressing environmental challenges. These refractories are utilized to line the high-temperature areas of furnaces, including blast furnaces and electric arc furnaces, which are vital for the production processes of iron and steel. The exceptional thermal insulation properties of monolithic refractories help to minimize heat loss and enhance energy efficiency. This reduction in heat loss translates to lower energy consumption and emissions as less fuel is required to maintain the desired temperature. Furthermore, monolithic refractories contribute to emissions reduction by optimizing the combustion process. Their ability to withstand extreme temperatures and resist thermal shock ensures that the furnaces operate at their optimal conditions. This leads to more efficient combustion of fuels and raw materials, resulting in a decrease in the release of harmful gases and pollutants into the atmosphere. Additionally, these refractories possess excellent resistance to chemical attacks and corrosion, which is particularly important in iron and steel plants where aggressive substances like molten metal, slag, and gases are present. By providing a protective lining, they prevent the degradation of furnace walls and equipment, reducing the risk of leaks and emissions. Moreover, monolithic refractories find application in the construction of pollution control devices such as flue gas desulfurization systems and baghouses. These systems are designed to capture and remove pollutants from the flue gases generated during iron and steel production. The use of refractories in these systems ensures their durability and longevity, enabling them to efficiently and effectively reduce emissions. In summary, monolithic refractories play a vital role in reducing emissions in iron and steel plants by improving energy efficiency, optimizing combustion, providing corrosion resistance, and supporting pollution control systems. Their implementation allows the industry to minimize its environmental impact and transition towards more sustainable and responsible production processes.
- Q: What are the advantages of using monolithic refractories in electric arc furnaces?
- There are several advantages of using monolithic refractories in electric arc furnaces. Firstly, monolithic refractories offer superior thermal shock resistance, allowing them to withstand rapid temperature changes without cracking or failing. This is crucial in electric arc furnaces where the temperature can fluctuate significantly during the melting process. Additionally, monolithic refractories have excellent corrosion resistance, which is essential in electric arc furnaces that often come into contact with corrosive molten metals and slag. They can withstand the corrosive effects, ensuring longer service life and reduced maintenance costs. Moreover, monolithic refractories provide ease of installation and repair. Unlike traditional bricks, they can be easily shaped and applied in various furnace designs, minimizing installation time and labor costs. In case of any damage, they can also be easily patched or replaced, allowing for quicker repairs and reduced downtime. Lastly, monolithic refractories offer improved energy efficiency due to their lower thermal conductivity. This means that less heat is lost to the surroundings, resulting in higher operational efficiency and reduced energy consumption. Overall, the advantages of using monolithic refractories in electric arc furnaces include superior thermal shock and corrosion resistance, ease of installation and repair, and improved energy efficiency, making them a preferred choice for these high-temperature industrial applications.
- Q: How do monolithic refractories contribute to the safety of iron and steel plants?
- The safety of iron and steel plants heavily relies on monolithic refractories. These refractories are specifically designed to withstand the harsh conditions commonly encountered in these industrial settings, including high temperatures, chemical attacks, and mechanical stresses. By using monolithic refractories, iron and steel plants can enjoy the following benefits: 1. Thermal resistance: Monolithic refractories excel in resisting extreme temperatures, preventing heat loss and ensuring the efficient operation of equipment and systems. This thermal insulation contributes to plant safety by reducing the risk of overheating, which can lead to equipment failure or catastrophic accidents. 2. Chemical resistance: Iron and steel plants involve the use of various chemicals, such as molten metal, slag, and corrosive gases. Monolithic refractories exhibit high resistance to these aggressive chemical environments, preventing corrosion, erosion, and material degradation. This resistance ensures the integrity of refractory linings, reducing the risk of leaks, spills, and contamination that could endanger workers and the environment. 3. Structural stability: Monolithic refractories provide excellent mechanical strength, offering stability to furnace linings, ladles, and other equipment. This stability is crucial for the safe operation of iron and steel plants, minimizing the risk of structural failure, collapse, or damage caused by mechanical stresses or heavy loads. 4. Quick repair and maintenance: Monolithic refractories offer easy installation and repair compared to traditional brick refractories. They can be poured, gunned, or rammed in place, allowing for swift repairs and maintenance. This rapid response to refractory failures or damages contributes to plant safety by minimizing downtime and preventing potential hazards associated with equipment malfunction. 5. Flexibility and adaptability: Monolithic refractories can be tailored to meet the specific needs of iron and steel plants. They can be customized in terms of composition, density, thermal conductivity, and other properties, ensuring optimal performance under varying operating conditions. This adaptability ensures that refractory linings are well-suited for the plant's processes, reducing the likelihood of accidents caused by inadequate refractory materials. In conclusion, monolithic refractories enhance the safety of iron and steel plants by providing thermal resistance, chemical resistance, structural stability, rapid repair capabilities, and flexibility. By utilizing these refractories, iron and steel plants can maintain a safe working environment, minimize the risk of accidents, and ensure the reliable operation of their equipment and systems.
- Q: What are the typical applications of monolithic refractories in blast furnaces?
- Monolithic refractories are widely used in blast furnaces due to their unique properties and applications. These refractories are composed of a single, homogeneous material that can be shaped and installed in various forms without the need for joints or seams. This characteristic makes them ideal for lining and protecting the different zones of a blast furnace. One typical application of monolithic refractories in blast furnaces is the lining of the hearth. The hearth is the bottom part of the furnace where molten iron and slag accumulate. Monolithic refractories are used to create a durable and heat-resistant lining that can withstand the extreme temperatures and chemical reactions occurring in this area. Another common application is the lining of the bosh, which is the transition zone between the hearth and the stack of the blast furnace. The bosh is subjected to high temperatures and mechanical stresses due to the movement of the burden materials. Monolithic refractories with high thermal shock resistance and abrasion resistance are used to ensure the longevity and efficiency of the bosh. Monolithic refractories are also used for the lining of the stack and the tuyere area. The stack is the vertical part of the furnace where the reduction of iron ore takes place. The tuyere area is where the hot blast of air is injected into the furnace. Both of these areas require refractories that can withstand high temperatures, chemical reactions, and mechanical stresses. Furthermore, monolithic refractories are used for repairs and maintenance in blast furnaces. Due to the harsh conditions inside the furnace, the lining may deteriorate over time. Monolithic refractories can be easily applied as patching materials to restore the integrity of the lining and extend the furnace's lifespan. In summary, the typical applications of monolithic refractories in blast furnaces include lining the hearth, bosh, stack, and tuyere area, as well as for repairs and maintenance. These refractories provide excellent thermal shock resistance, abrasion resistance, and durability, making them essential for the efficient operation of blast furnaces in the iron and steel industry.
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Monolithic Refractories for Iron and Steel Industry - Hot-dip Zinc Coating Steel Building Roof Walls with Excellent Process Capability
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 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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