Monolithic Refractories for Iron and Steel Industry - High Alumina Plastic Castable for Hot Blast Stove
- Ref Price:
-
$417.81 - 510.65
/ 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
You Might Also Like
General Information of High Alumina Plastic Castable for Hot Blast Stove
ALRE high-alumina plastic castable for hot blast stove made strictly as per international standards, is known for its long operating life, excellent corrosion resistance and high refractoriness.
Technical data of High Alumina Plastic Castable for Hot Blast Stove
Item | High-alumina plastic castable | ||||
CJS-1600 | |||||
Al2O3 | % | ≥ | 55 | 65 | |
SiO2+C | % | ≥ | --- | --- | |
CaO | % | ≤ | --- | --- | |
MgO | % | ≥ | |||
SiO2 | % | ≤ | 40 | 30 | |
Bulk density g/cm3）≥ | 110℃×24h | 2.3 | 2.4 | ||
1000℃×3h | --- | --- | |||
1450℃×3h | --- | --- | |||
1500℃×3h | --- | --- | |||
110℃×24h | --- | --- | |||
1450℃×3h | --- | --- | |||
M.O.R. (MPa)≥ | 110℃×24h | 5-7 | 5-8 | ||
1000℃×3h | --- | --- | |||
1450℃×3h | --- | --- | |||
1500℃×3h | 10 | 12 | |||
Linear change after heating | 110℃×24h | -0.2~0 | -0.2~0 | ||
1000℃×3h | |||||
1450℃×3h | |||||
1500℃×3h | 0~+0.5 | 0~+0.5 | |||
Max. service temperature (℃) | 1500 | 1600 | |||
Using area | Linings of heating furnace of steel rolling, incinerator (Ramming construction method) | ||||
Production line and Packing of High Alumina Plastic Castable for Hot Blast Stove
Feature of High Alumina Plastic Castable for Hot Blast Stove
Easy execution and mending
Excellent corrosion and scouring resistance of iron steel
Application of High Alumina Plastic Castable for Hot Blast Stove
ALRE high-alumina plastic castable for hot blast stove could be used widely for linings of heating furnace of steel rolling, incinerator.
- Q: What are the common failure modes of monolithic refractories in iron and steel applications?
- Monolithic refractories are widely used in iron and steel applications due to their excellent thermal shock resistance, high temperature stability, and mechanical strength. However, like any other material, they are not immune to failure. There are several common failure modes associated with monolithic refractories in iron and steel applications. 1. Spalling: Spalling is one of the most common failure modes of monolithic refractories. It refers to the detachment of refractory material from the surface due to thermal cycling, mechanical stress, or chemical reactions. Spalling can occur due to mismatched thermal expansion coefficients between the refractory and the surrounding structure, leading to cracking and subsequent detachment. 2. Erosion: Erosion is another prevalent failure mode in iron and steel applications. It occurs when the refractory material is subjected to the erosive action of molten metal, slag, or gases. The erosion can be a result of the physical impact of the flowing metal or the chemical attack by corrosive slag components. Erosion leads to the loss of refractory material, decreased lining thickness, and compromised performance. 3. Corrosion: Corrosion is a significant failure mode in iron and steel applications, particularly in contact with aggressive atmospheres or molten metal. Corrosion can result from chemical reactions between the refractory material and the corrosive agents, such as oxides, sulfides, or alkalis present in the environment. It leads to the formation of corrosion products, which can weaken the refractory lining and reduce its lifespan. 4. Thermal shock: Monolithic refractories are exposed to extreme temperature fluctuations in iron and steel applications. Rapid heating or cooling can lead to thermal shock, causing cracking and failure of the refractory material. Thermal shock can occur due to uneven heating or cooling, sudden changes in temperature, or thermal gradients within the refractory lining. 5. Abrasion: In certain iron and steel applications, monolithic refractories can be subjected to abrasive wear. This occurs when the refractory lining comes into contact with solid particles, such as metallic oxides, slags, or raw materials. The repeated impact and rubbing action of these particles can cause erosion and abrasion of the refractory material, leading to its failure. To mitigate these failure modes, proper refractory selection, installation techniques, and maintenance practices are crucial. Regular inspection, repair of damaged areas, and application of protective coatings can help extend the lifespan and performance of monolithic refractories in iron and steel applications.
- Q: In iron and steel industry, the main raw materials for blast furnace ironmaking are iron ore, coke and limestone. What's the use of limestone here?
- At high temperatures, limestone (calcium carbonate) breaks down into lime (calcium oxide, which is useful) and carbon dioxide.
- 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 resist thermal shock in the iron and steel industry?
- Monolithic refractories in the iron and steel industry resist thermal shock primarily due to their ability to absorb and distribute thermal stress. These refractories are composed of a single, continuous structure, eliminating the weaknesses inherent in jointed or layered materials. Their dense and homogeneous structure allows for efficient heat transfer and expansion, minimizing the risk of cracking or spalling caused by sudden temperature fluctuations. Additionally, monolithic refractories possess high thermal conductivity, which aids in dissipating heat and preventing localized hotspots. Overall, their resilience to thermal shock makes them ideal for withstanding the extreme conditions of the iron and steel manufacturing processes.
- Q: What are the considerations for repairing and patching monolithic refractories?
- When it comes to repairing and patching monolithic refractories, there are several important considerations that need to be taken into account. Firstly, it is crucial to carefully assess the extent and severity of the damage or deterioration. This will help determine the appropriate repair method and materials needed. Small cracks or minor damage may only require a simple patching or sealing, while larger or more severe damage might necessitate a complete replacement or a more extensive repair process. Secondly, the type of monolithic refractory material being used is an important factor to consider. Different types of monolithic refractories have varying properties and characteristics, such as thermal conductivity, chemical resistance, and mechanical strength. Therefore, it is crucial to choose a repair material that is compatible with the existing refractory material to ensure proper bonding and performance. Another consideration is the operating conditions and environment in which the monolithic refractory is exposed. Factors such as temperature, pressure, chemical exposure, and abrasion can significantly impact the durability and longevity of the refractory material. Understanding these conditions will help in selecting the appropriate repair materials and techniques that can withstand and perform well under these specific conditions. Additionally, the repair process should be carried out by experienced personnel who are knowledgeable about refractory materials and their installation. Improper repairs can lead to further damage or reduced performance, so it is essential to have skilled professionals who can perform the repair work correctly. Lastly, regular inspection and maintenance of the monolithic refractories are essential to detect any potential damage or deterioration early on. Timely repairs and patching can prevent further deterioration and extend the service life of the refractory material. In summary, considerations for repairing and patching monolithic refractories involve assessing the extent of damage, selecting compatible repair materials, understanding the operating conditions, employing skilled personnel, and conducting regular inspections and maintenance. By taking these factors into account, one can ensure effective repairs and the continued performance of monolithic refractories.
- Q: How do monolithic refractories perform in reheating furnace roof applications?
- Monolithic refractories prove highly effective when used on the roofs of reheating furnaces. These refractories are renowned for their outstanding ability to withstand extreme temperature conditions, making them an essential component in furnace operations. Their resistance to thermal shock ensures that they do not crack or spall, guaranteeing the long-lasting durability of the furnace roof. Moreover, monolithic refractories offer exceptional insulation properties, thereby helping to maintain the desired temperature inside the furnace. With their low thermal conductivity, they prevent heat loss and reduce energy consumption. This not only enhances the energy efficiency of the furnace but also leads to cost savings for operators. Furthermore, monolithic refractories provide excellent resistance against chemical attacks from gases and molten metals found within the furnace environment. Designed to withstand corrosive atmospheres, they effectively prevent the penetration of harmful substances, thereby extending the lifespan of the roof refractory. Additionally, monolithic refractories offer easy installation and repair options. Their ability to be cast or gunned in place allows for a seamless and precise application to the roof structure. This feature also facilitates quick and efficient repairs or maintenance, minimizing downtime and production losses. In summary, monolithic refractories are a reliable and efficient choice for reheating furnace roof applications. Their outstanding resistance to thermal shock, insulation properties, chemical resistance, and ease of installation make them the ideal solution for maintaining the structural integrity and performance of the furnace roof.
- Q: Can monolithic refractories be used for lining iron and steel ladles during casting and pouring?
- Yes, when it comes to lining iron and steel ladles during casting and pouring, monolithic refractories are the go-to option. Unlike traditional refractory bricks, which consist of multiple pieces, monolithic refractories are composed of a single, uniform structure. Monolithic refractories are highly favored for ladle lining in iron and steel casting due to their numerous advantages. Firstly, they exhibit exceptional resistance to thermal shock, enabling them to endure the intense temperatures encountered during casting and pouring. This is of utmost importance since ladles are constantly exposed to extreme heat. Moreover, monolithic refractories provide superior resistance to erosion and corrosion, ensuring that the lining remains intact amidst the harsh conditions and chemical reactions that transpire when molten metal makes contact with the ladle. Additionally, they possess excellent thermal insulation properties, diminishing heat loss and enhancing energy efficiency throughout the casting process. Furthermore, monolithic refractories boast remarkable versatility, enabling easy installation, repair, and replacement. They can be molded and shaped to conform to the specific requirements of ladles, resulting in a snug and secure lining. This adaptability also enables swift maintenance and repair, minimizing downtime and optimizing productivity. In conclusion, monolithic refractories are the perfect choice for lining iron and steel ladles during casting and pouring. Their resistance to thermal shock, erosion and corrosion, thermal insulation properties, and ease of installation render them highly suitable for this demanding application.
- Q: What are the main factors affecting the abrasion resistance of monolithic refractories?
- There are three key aspects that categorize the main factors influencing the abrasion resistance of monolithic refractories: material composition, microstructure, and service conditions. Firstly, the abrasion resistance of monolithic refractories is significantly determined by their material composition. The selection of raw materials, such as aggregates and binders, directly impacts the overall hardness, strength, and wear resistance of the refractories. For example, high-alumina refractories, which have a high proportion of alumina as their main component, demonstrate exceptional abrasion resistance due to the hardness and toughness of alumina. Conversely, refractories with a higher percentage of softer materials like clay or magnesia may exhibit lower abrasion resistance. Secondly, the microstructure of monolithic refractories plays a crucial role in their ability to endure abrasion. The arrangement and orientation of the aggregates, as well as the bond strength between the particles and the matrix, significantly contribute to their resistance against wear. An evenly distributed and interconnected network of aggregates can strengthen the refractories and enhance their resistance to abrasion. Additionally, a compact and well-sintered matrix can prevent abrasive particles from penetrating, thereby reducing wear. Lastly, the service conditions under which monolithic refractories operate are vital factors in determining their abrasion resistance. Variables such as temperature, atmosphere, and mechanical stress can greatly impact the wear behavior of refractories. High temperatures can cause thermal expansion and contraction, resulting in cracks and spalling, which accelerate abrasion. The presence of corrosive gases or chemicals can also deteriorate the microstructure of refractories, diminishing their wear resistance. Moreover, mechanical stress from impact or friction can lead to localized wear and damage the refractories. To conclude, the abrasion resistance of monolithic refractories is influenced by material composition, microstructure, and service conditions. By carefully selecting suitable raw materials, optimizing the microstructure, and considering specific service conditions, it is possible to enhance the abrasion resistance of monolithic refractories and improve their overall performance in high-wear applications.
- Q: What are the factors to consider when selecting monolithic refractories for specific applications?
- When choosing monolithic refractories for specific applications, one must take into account several factors. These factors encompass the operating temperature, chemical environment, mechanical stress, and desired performance characteristics of the refractory material. The operating temperature plays a pivotal role and varies depending on the monolithic refractory. It is crucial to select a refractory material that can withstand the specific temperature range without experiencing thermal spalling or degradation. The chemical environment also plays a vital role. Different applications may expose the refractory to various chemicals, acids, alkalis, or gases. It is essential to choose a monolithic refractory that is chemically resistant to the specific environment to ensure durability and performance over time. Mechanical stress is another critical consideration. Certain applications may subject the refractory to high mechanical stress, such as abrasion, impact, or thermal shock. It is important to choose a refractory material that can withstand these stresses without cracking or failing. The desired performance characteristics of the refractory material should also be taken into account. This includes factors such as thermal conductivity, thermal expansion, density, and strength. The specific requirements of the application will dictate the necessary performance characteristics, and the refractory material should be chosen accordingly. Other factors to consider include the method of installation, availability, cost, and maintenance requirements. Some monolithic refractories may require specialized installation techniques, while others may be readily available and cost-effective. Additionally, the maintenance requirements of the refractory material should be considered to ensure ease of upkeep and longevity. In conclusion, selecting the appropriate monolithic refractories for specific applications necessitates careful consideration of factors such as operating temperature, chemical environment, mechanical stress, desired performance characteristics, installation method, availability, cost, and maintenance requirements. By taking these factors into account, one can choose a refractory material that will provide optimal performance and durability in the given application.
- Q: How are monolithic refractories installed in iron and steel production processes?
- Monolithic refractories are installed in iron and steel production processes by first preparing the surface, then applying the refractory material in a plastic or semi-plastic state. This can be done through various methods such as gunning, casting, ramming, or spraying. After the installation, the refractory material is allowed to cure and harden, forming a durable lining that can withstand high temperatures and harsh conditions in the production processes.
We are an industrial enterprise of refractories integrating the scientific research, design, production and engineering service. With first-class quality of products, high-efficient and prompt after-sale service, our products are not only well sold in many domestic large steel enterprises and coking enterprises, but also widely exported to more than 23 countries and regions.
1. Manufacturer Overview
| Location | Henan, China |
| Year Established | 2007 |
| Annual Output Value | Above US$ 200 Million |
| Main Markets | North America;Asia;Western Europe;Africa;Russia;Middle East |
| Company Certifications | ISO 9001:2008 |
2. Manufacturer Certificates
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 20% - 30% |
| No.of Employees in Trade Department | 10-20 People |
| Language Spoken: | English; Chinese |
| b) Factory Information | |
| Factory Size: | Above 150,000 square meters |
| No. of Production Lines | Above 10 |
| Contract Manufacturing | Installation guide, OEM Service Offered |
| Product Price Range | High; Average |
Send your message to us
Monolithic Refractories for Iron and Steel Industry - High Alumina Plastic Castable for Hot Blast Stove
- Ref Price:
-
$417.81 - 510.65
/ 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
Similar products
Hot products
Hot Searches
Related keywords
