Monolithic Refractories Slide Gate Plates for Ladle & Tundish

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10 set

Supply Capability:: 50000 set/month

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Specifications

Ladle Sliding Plate
1.Competitive price
2.Manufacture
3.Worldwide customers
4.Long service life

Slide gate plate Information

Alumina-carbon slide gate plate is characterized by high strength, erosion resistance and good thermal shock resistance. They are preferred products for large/middle ladle and continuous casting tundish. They can meet the needs of different steel grades.

Features:

1. Tundish Slide Gate Plate
2. Tundish Slide Gate Plate with good performance
3.long service life
4.fit for tundish

5. original manufacturer with own r&d team
6. good reputation at home & abroad
7. with competitive price

Application

They are preferred products for large/middle ladle and continuous casting tundish. They can meet the needs of different steel grades.

Burned slide plate ladle refractory brick 1. Passed ISOcertified 2.have a good reputation on both domestic and oversea country

Physicochemical indexes :

ITEM	Al-C Slide Plate					Al-Zr-C Slide Plate
ITEM	70	75	80	85	86	70	75	77
Al₂O₃,%	70	75	80	85	86	70	75	77
C,%	7	7	5	5	4	7	7	7
ZrO₂,%	-	-	-	-	-	6	6	2.5
A.P.,%≤	10	10	10	10	7	10	10	10
B.D.,g/cm³	2.8	2.9	2.9	3.0	2.95	3.00	3.05	2.90
C.C.S., MPa ≥	65	70	100	100	100	110	115	100

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: How do monolithic refractories withstand high temperatures and thermal cycling?: Monolithic refractories, with their unique composition and structural characteristics, are designed to endure high temperatures and thermal cycling. To begin with, these refractories are composed of high-quality raw materials like alumina, silica, and magnesia. These materials possess exceptional thermal properties, including high melting points and low thermal conductivity. Consequently, they can maintain their strength and integrity even in extreme temperatures. Additionally, monolithic refractories are engineered to have a dense and compact microstructure. This dense structure prevents the infiltration of heat and gases, minimizing thermal shock and crack formation. Moreover, the compact microstructure enhances the refractory's thermal conductivity, allowing it to efficiently distribute and dissipate heat. Furthermore, special additives and bonding agents are often incorporated into monolithic refractories to enhance their resistance to thermal cycling. These additives improve the refractory's thermal expansion properties, enabling it to expand and contract without cracking or spalling during rapid temperature changes. Some bonding agents also provide flexibility to the refractory, allowing it to withstand thermal stresses without compromising its structural integrity. In addition to these inherent characteristics, proper installation techniques are crucial for the refractory's ability to withstand high temperatures and thermal cycling. Careful application and curing ensure uniformity and minimize the development of internal stresses. Adequate curing and heat treatment processes create a strong and durable bond between the refractory and the substrate, enhancing its resistance to thermal shock and cyclic thermal loading. In summary, the composition, microstructure, and installation techniques of monolithic refractories work together to enable them to withstand high temperatures and thermal cycling. These factors result in excellent thermal conductivity, resistance to thermal shock, and the ability to expand and contract without compromising the refractory's structural integrity.

Q: What are the quality control measures for monolithic refractories in the iron and steel industry?: To ensure the efficiency and safety of the production process in the iron and steel industry, it is crucial to implement quality control measures for monolithic refractories. These measures encompass a range of inspections and tests throughout the manufacturing and installation stages. To begin with, rigorous testing is conducted on the raw materials used for monolithic refractories. This involves analyzing the chemical composition, particle size distribution, and impurity content. These tests are essential to ensure that the ingredients meet the required specifications and are suitable for the intended application. During the production process, the focus of quality control measures lies in monitoring the mixing and blending of the materials. This ensures that a homogeneous mixture is achieved, preventing any inconsistencies in the final product. Additionally, the density and viscosity of the refractory castables or plastics are checked to maintain the desired physical properties. Once the monolithic refractories are manufactured, they undergo several performance tests. These tests involve determining properties such as cold crushing strength, modulus of rupture, and thermal conductivity. These characteristics are crucial in ensuring that the refractories can withstand the extreme temperatures and mechanical stress present in the iron and steel industry. Aside from laboratory testing, quality control measures also involve on-site inspections during installation. This includes verifying the correct application techniques, such as proper vibration, curing, and drying procedures. It is of utmost importance to ensure that the monolithic refractories are applied correctly to achieve optimal performance and longevity. Furthermore, regular sampling and monitoring of the refractories' performance are carried out during operation. This allows for the early detection of any signs of degradation or wear, enabling proactive maintenance and replacement before any significant issues arise. In conclusion, the quality control measures for monolithic refractories in the iron and steel industry encompass comprehensive testing, monitoring, and inspection procedures. These measures are implemented to guarantee the reliability, durability, and efficiency of the refractories, ultimately contributing to the smooth operation of the iron and steel production processes.

Q: What are the common manufacturing processes used for monolithic refractories?: Monolithic refractories are commonly manufactured using the following processes: 1. Mixing: The initial step involves accurately measuring and combining the raw materials to create a uniform mixture. 2. Wetting: The mixture is then moistened with water or a liquid binder to enhance its workability and plasticity, facilitating shaping and molding. 3. Forming: Various techniques such as casting, gunning, ramming, or extrusion are employed to shape the wet mixture. Casting entails pouring it into a mold, gunning involves spraying it onto a surface, ramming compacts it using a tool, and extrusion forces it through a die to create specific shapes. 4. Drying: The formed monolithic refractory is dried in a controlled environment with specific temperature and humidity conditions to eliminate excess moisture, preventing cracks or warping. 5. Firing: The dried monolithic refractory is then subjected to high temperatures to achieve the desired properties. This process, known as sintering, promotes particle bonding, increasing the material's strength and stability. 6. Finishing: Following the firing process, additional finishing processes like grinding, polishing, or coating may be employed to enhance the surface quality and overall performance of the monolithic refractory. By employing these standard manufacturing procedures, high-quality monolithic refractories with consistent properties and performance characteristics are produced.

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: How do monolithic refractories withstand the alkali attacks in cement kiln applications?: Due to their unique composition and structure, monolithic refractories are capable of withstanding alkali attacks in cement kiln applications. Unlike traditional brick refractories, these refractories are made from a single material, resulting in a more uniform and dense structure. When exposed to alkali attacks in cement kilns, monolithic refractories create a barrier against the corrosive alkali substances by forming a protective layer on the surface. This protective layer is formed through reactions between the alkali substances and the refractory material, leading to the development of a stable compound that resists further attacks. Additionally, monolithic refractories possess high chemical resistance, allowing them to endure the aggressive conditions inside cement kilns. Their low porosity design minimizes the infiltration of alkali substances into the refractory material, reducing the risk of alkali attacks and extending the lifespan of the refractory lining. Furthermore, monolithic refractories are frequently manufactured using materials with elevated melting points, such as alumina, silica, and magnesia. These materials exhibit exceptional thermal stability, enabling the refractories to withstand the high temperatures in cement kilns without significant deterioration. This thermal stability is crucial in preventing the formation of cracks and spalling, which could permit alkali penetration and subsequent harm to the refractory lining. In conclusion, monolithic refractories are specifically engineered to resist alkali attacks in cement kiln applications by forming a protective layer, possessing high chemical resistance, and demonstrating excellent thermal stability. These characteristics make them an ideal choice for lining cement kilns, ensuring long-term performance and durability.

Q: What are the latest advancements in monolithic refractories for the iron and steel industry?: 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: What are the main factors affecting the abrasion resistance of monolithic refractories?: The main factors affecting the abrasion resistance of monolithic refractories are the composition of the refractory material, the size and shape of the abrasive particles, the velocity and angle of impact of the abrasives, and the temperature and pressure conditions in the application environment.

Q: What are the advantages of using monolithic refractories in the iron and steel industry?: There are several advantages of using monolithic refractories in the iron and steel industry. Firstly, monolithic refractories offer excellent thermal insulation properties. This means that they are able to withstand and retain high temperatures, which is crucial in the iron and steel manufacturing process. The ability to withstand extreme heat ensures that the refractories maintain their structural integrity, reducing the risk of failure and maintaining operational efficiency. Secondly, monolithic refractories have superior corrosion resistance. In the iron and steel industry, where materials are exposed to harsh chemicals and corrosive agents, the use of monolithic refractories helps to protect the equipment and structures from degradation. This not only extends the lifespan of the refractories but also reduces maintenance costs and downtime. Another advantage of monolithic refractories is their versatility. Unlike traditional refractory bricks, which are rigid and require skilled labor for installation, monolithic refractories can be cast or sprayed into various shapes and sizes. This flexibility allows for easier installation and customization, resulting in better lining design and improved performance. Additionally, monolithic refractories can be easily repaired or patched in case of damage, minimizing production disruptions. Furthermore, monolithic refractories have excellent mechanical strength and abrasion resistance. In the iron and steel industry, where materials are constantly being moved and processed, the refractories must be able to withstand mechanical stresses and abrasion. Monolithic refractories provide the necessary strength and resistance, ensuring that they can withstand the rigors of the industry without compromising performance. Lastly, the use of monolithic refractories in the iron and steel industry can lead to cost savings. Due to their versatility and ease of installation, monolithic refractories require less labor and time for installation, resulting in reduced installation costs. Additionally, their longer lifespan and resistance to corrosion and thermal shock minimize the need for frequent replacements, reducing maintenance and downtime costs. In conclusion, the advantages of using monolithic refractories in the iron and steel industry include excellent thermal insulation, corrosion resistance, versatility, mechanical strength, and cost savings. These benefits make monolithic refractories an ideal choice for lining furnaces, ladles, and other equipment used in the production of iron and steel.

Q: What are the key factors to consider when designing the lining system with monolithic refractories?: When designing a lining system with monolithic refractories, there are several key factors that need to be considered. Firstly, the operating conditions of the system need to be thoroughly assessed. Factors such as temperature, pressure, and chemical composition of the materials being processed should be taken into account. This will help determine the appropriate type of monolithic refractories to be used. Secondly, the physical and mechanical properties of the refractories should be considered. These include factors like thermal conductivity, thermal expansion, and mechanical strength. The refractories should have properties that are compatible with the specific requirements of the system to ensure optimal performance and longevity. Thirdly, the installation method and techniques need to be carefully planned. The lining system should be designed in a way that allows for proper installation and ensures a tight seal to prevent any leakage or infiltration. The installation process should also take into account factors like curing time and temperature to ensure the refractories achieve their desired properties. Lastly, the cost and availability of the refractories should be considered. It is important to choose refractories that are cost-effective and readily available in the market. This will help ensure that any maintenance or repairs can be done efficiently without causing significant downtime or additional expenses. By considering these key factors, a well-designed lining system with monolithic refractories can be implemented, providing optimal performance, durability, and cost-effectiveness for the specific application.

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