Monoblock Stopper for continuous casting
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
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Description:
1.excellent thermal shock resistance;
2.excellent mechanical properties and resistance to vibration
3. long service life
Monoblock stopper is one of the important steel flow regulation components, and to meet the particularly demanding operating conditions, we manufacture varieties of stoppers with customised specifications to suit the different designs of our customers' tundishes
To facilitate customisation, during our manufacturing process, we apply different mixtures of aluminia or magnesia to the nose of our stoppers for our customers, enabling them to cast various types of steel.
The characteristics of the stopper are as follows:
PARMETER | Major portion | Stopper head | Stopper head | Stopper head |
F.C+SiC (%) | 20 | 10 | 20 | 12 |
Al2O3 (%) | 68 | 80 | ||
ZrO2 (%) | 72 | |||
MgO (%) | 75 | |||
apparent porosity(%) | 15 | 14 | 16 | 15 |
bulk density(g/cm3) | 2.35 | 2.80 | 3.30 | 2.70 |
CCS (Mpa) | 27 | 26 | 27 | 25 |
MOR (Mpa) | 8.0 | 8.0 | 9.0 | 8.0 |
The stopper head is the key part. Standard materials are：
Alumina carbon suitable for ordinary steel flow control
Zirconium carbon suitable for special alloy steel flow control
Magnesia carbon suitable for Ca-treatment steel flow control
- 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:How do monolithic refractories improve the efficiency of ladle and tundish drying furnaces?
- Monolithic refractories improve the efficiency of ladle and tundish drying furnaces in several ways. Firstly, monolithic refractories offer a high degree of thermal insulation. These refractories have low thermal conductivity, which means they can effectively reduce heat transfer from the furnace to the surrounding environment. This insulation property helps to minimize heat losses, allowing the furnace to maintain a higher temperature for a longer period of time. As a result, the drying process becomes more efficient as the heat is retained within the furnace, reducing the overall energy consumption. Secondly, monolithic refractories have excellent resistance to thermal shock. During the heating and cooling cycles of the furnace, rapid temperature changes can cause stress and cracks in the refractory material. However, monolithic refractories are designed to withstand these thermal shocks and maintain their structural integrity. This durability ensures a longer lifespan of the refractory lining, reducing the need for frequent repairs or replacements. Consequently, the furnace operates at optimal efficiency without the downtime associated with maintenance. Additionally, monolithic refractories provide good mechanical strength and abrasion resistance. These properties are crucial in ladle and tundish drying furnaces, as they are exposed to mechanical stresses and abrasive materials such as molten metal and slag. The use of monolithic refractories ensures that the lining can withstand these harsh conditions without undergoing structural damage. This resistance to wear and tear increases the overall efficiency of the furnace, as it can operate for longer periods without interruptions. Lastly, monolithic refractories offer greater design flexibility compared to traditional brick or tile refractories. Their ability to be cast or gunned onto the lining surface allows for easy installation and repair. This flexibility enables the furnace to be customized and adapted to specific requirements, ensuring optimal heat distribution and efficient drying processes. In conclusion, monolithic refractories improve the efficiency of ladle and tundish drying furnaces through their thermal insulation, resistance to thermal shock, mechanical strength, and design flexibility. By reducing heat losses, increasing durability, withstanding harsh conditions, and allowing for easy installation and repair, these refractories optimize the performance and energy efficiency of the furnaces.
- Q:What are the considerations for repairing and relining monolithic refractories?
- When it comes to repairing and relining monolithic refractories, there are several key considerations that need to be taken into account. Firstly, it is important to assess the extent of the damage or wear to the refractory lining. This can be done through visual inspection, as well as non-destructive testing techniques such as ultrasonic or thermal imaging. Understanding the severity and location of the damage will help in determining the appropriate repair or relining method. Another consideration is the type of monolithic refractory material being used. Different materials have different properties and performance characteristics, and this needs to be considered when selecting the repair method. For example, some materials may require high-temperature curing or specialized equipment for installation. The operating conditions of the refractory lining also need to be taken into account. Factors such as temperature, chemical exposure, and mechanical stress can affect the performance and longevity of the lining. The repair or relining method should be selected to ensure that it can withstand these conditions and provide long-lasting protection. Additionally, the downtime and cost implications of the repair or relining process need to be considered. Some methods may require longer curing or drying times, which can result in extended shutdown periods. It is important to weigh the benefits of the repair or relining against the potential production losses and expenses associated with the downtime. Lastly, it is crucial to follow industry standards and guidelines when repairing or relining monolithic refractories. This ensures that the repairs are done correctly and in a safe manner, minimizing the risk of future damage or failure. Consulting with refractory experts or manufacturers can provide valuable insights and guidance in this regard. In conclusion, the considerations for repairing and relining monolithic refractories include assessing the extent of damage, understanding the properties of the refractory material, considering the operating conditions, evaluating downtime and cost implications, and following industry standards and guidelines.
- Q:How do monolithic refractories improve the durability of furnace linings?
- Monolithic refractories play a crucial role in enhancing the durability of furnace linings due to their unique characteristics and properties. These materials are composed of a single, homogeneous structure, unlike traditional brick refractories that consist of individual bricks or tiles. One of the key ways in which monolithic refractories improve the durability of furnace linings is through their ability to eliminate joints and seams. In traditional brick refractories, the joints between the bricks can be weak points where cracks and failures can occur due to thermal expansion and contraction. Monolithic refractories, on the other hand, are poured or gunned into place, ensuring a seamless lining. This seamless structure minimizes the potential for cracks, making the lining more durable and less susceptible to thermal stress. Monolithic refractories also have excellent thermal shock resistance, which is crucial for furnace linings that are subjected to rapid and extreme temperature changes. The monolithic structure allows for better heat transfer and distribution, preventing localized hotspots that can lead to thermal shock and lining failure. This enhanced thermal shock resistance ensures that the furnace lining can withstand the repeated heating and cooling cycles without significant damage, hence improving its overall durability. Additionally, monolithic refractories offer superior erosion and corrosion resistance. Furnace linings are often exposed to harsh chemicals, molten metals, and abrasive materials, which can cause erosion and corrosion over time. Monolithic refractories are designed to resist these corrosive agents, protecting the lining from chemical attacks and physical wear. This resistance ensures a longer lifespan for the furnace lining and reduces the need for frequent repairs or replacements. Furthermore, monolithic refractories provide better insulation properties compared to traditional brick refractories. They have lower thermal conductivity, meaning that heat transfer through the lining is minimized. This insulation property helps to maintain a more stable and uniform temperature within the furnace, reducing thermal stress on the lining and contributing to its longevity. In summary, monolithic refractories improve the durability of furnace linings by eliminating joints and seams, enhancing thermal shock resistance, providing erosion and corrosion resistance, and offering superior insulation properties. These materials are specifically designed to withstand the extreme conditions inside furnaces, ensuring a longer lifespan for the lining and reducing maintenance costs in the long run.
- Q:What are the different types of monolithic refractories used in the iron and steel industry?
- The iron and steel industry relies on various types of monolithic refractories for their exceptional thermal resistance, strength, and durability. These refractories are crucial in withstanding extreme temperatures and harsh conditions in a range of applications. Firstly, there are castables, which are precast refractory materials that form a slurry when mixed with water. This slurry is then poured or cast into molds. Castables are widely used in the iron and steel industry to line ladles, tundishes, and furnaces due to their high strength and resistance to thermal shock. Another type is ramming mass, which is used to line induction furnaces and melting units. It is composed of refractory aggregates, binders, and additives. Ramming mass is applied by ramming or tamping it into place, creating a dense lining capable of withstanding high temperatures and chemical attacks. Gunning mix is a refractory material applied using a pneumatic gunning machine. It is particularly useful for repairing or lining various areas of furnaces, especially during hot repairs. Gunning mix consists of refractory aggregates, binders, and additives that are sprayed onto the lining surface and then compacted. Plastic refractories, on the other hand, are mixtures of refractory aggregates and binders with high plasticity. They can be easily molded or shaped, making them ideal for repairing or patching refractory linings in the iron and steel industry. Plastic refractories are typically applied by hand or with a trowel and are suitable for both hot and cold applications. Lastly, refractory mortars are used for jointing or repairing refractory bricks or other monolithic refractories. They are composed of refractory powders, binders, and water. Mortars provide excellent adhesion between bricks or monolithic materials, ensuring a strong and durable lining in furnaces, ladles, and other high-temperature equipment. These various types of monolithic refractories are indispensable in the iron and steel industry. They provide reliable and long-lasting linings, ensuring efficient operations and minimizing downtime.
- Q:What are the common failure mechanisms of monolithic refractories?
- Some common failure mechanisms of monolithic refractories include thermal shock, spalling, erosion, chemical attack, and mechanical stress. These factors can weaken the refractory material, causing it to crack, break, or deteriorate over time.
- Q:What are monolithic refractories?
- Monolithic refractories, in contrast to individual bricks or precast shapes, are refractory materials that are manufactured as a single unit. They can be shaped and installed without the need for joints or mortar, making them convenient for lining furnaces, boilers, kilns, and other high-temperature industrial equipment. These refractories consist of a carefully selected mixture of refractory aggregates, binders, and additives. This combination provides desired properties such as high temperature resistance, thermal shock resistance, and chemical durability. Aggregates like alumina, magnesia, zirconia, and silica are used, while binders such as clay, cement, or phosphate hold the aggregates together. One advantage of monolithic refractories is their ability to adapt to complex shapes and designs, allowing for customized linings that meet specific equipment requirements. They can be applied through pouring, gunning, ramming, or spraying onto the surface to be lined, leading to quick and efficient installation. This eliminates the need for time-consuming bricklaying and jointing, reducing installation time and labor costs. Monolithic refractories also possess superior thermal conductivity, enabling them to withstand high temperatures and sudden temperature changes. They offer excellent insulation properties, preventing heat loss and improving energy efficiency in industrial processes. Additionally, these refractories exhibit good resistance to chemical attack from molten metals, slags, gases, and other corrosive substances found in various industrial environments. This makes them highly suitable for applications in steel, cement, glass, petrochemical, and non-ferrous metals industries. In conclusion, monolithic refractories are a versatile and efficient solution for high-temperature applications. Their ability to be shaped and installed without joints or mortar, combined with their excellent thermal conductivity and chemical resistance, make them a valuable choice for lining industrial equipment operating under extreme conditions.
- Q:How do monolithic refractories help in reducing energy consumption in iron and steel production?
- Monolithic refractories play a vital role in the reduction of energy consumption in iron and steel production. These refractories are heat-resistant materials utilized to line the walls and floors of furnaces and other high-temperature equipment. One of the main ways monolithic refractories aid in energy reduction is through their exceptional thermal insulation properties. These materials possess low thermal conductivity, which effectively minimizes heat loss from the furnace or equipment. By keeping heat loss to a minimum, monolithic refractories help maintain a consistent and high temperature inside the furnace, resulting in enhanced energy efficiency. This allows for better utilization of generated heat, reducing the need for additional energy input and ultimately leading to energy savings. Additionally, monolithic refractories exhibit high thermal stability and resistance to thermal shock. This enables them to withstand the extreme temperatures and rapid temperature changes frequently encountered in iron and steel production processes. By having a robust and dependable lining, these refractories prevent heat leakage and ensure efficient heat transfer to desired areas, reducing energy wastage. Furthermore, monolithic refractories contribute to energy reduction by resisting chemical attack and erosion. In iron and steel production, furnaces and equipment linings are exposed to aggressive substances like molten metal, slag, and gases. Monolithic refractories exhibit excellent resistance to these corrosive elements, prolonging their lifespan and reducing the need for frequent repairs or replacements. This not only saves energy required for maintenance but also avoids production interruptions and associated energy losses. In conclusion, monolithic refractories aid in the reduction of energy consumption in iron and steel production by providing effective thermal insulation, withstanding extreme temperatures, and resisting chemical attack. By optimizing heat management and extending equipment durability, these refractories significantly contribute to energy efficiency and cost savings in the industry.
- Q:How do monolithic refractories withstand high temperatures in iron and steel production?
- Monolithic refractories, which are tailored for iron and steel production, have the capability to endure the formidable temperatures involved. Unlike traditional brick refractories that are built brick by brick, monolithic refractories are made from a single piece or material. The resilience of monolithic refractories against high temperatures is due to their distinctive composition and structure. They are crafted from top-notch raw materials, such as alumina, magnesia, silica, and carbon, which possess high melting points and exceptional heat resistance. To shape and strengthen the monolithic refractory, it is commonly mixed with a binder like clay or cement. This binder assists in binding the refractory particles together and provides the necessary structure to withstand thermal stresses. Moreover, the mixture can include various additives to further enhance the refractory properties. Throughout the iron and steel production process, monolithic refractories encounter extreme temperatures, rapid heating and cooling cycles, and chemical reactions with molten metals and slag. Nevertheless, the unique composition and structure of monolithic refractories enable them to withstand these harsh conditions. The high melting point materials utilized in monolithic refractories prevent them from melting or deforming under the intense heat of iron and steel production. These materials exhibit excellent thermal conductivity, effectively transferring heat away from hot surfaces and preventing overheating and damage. Furthermore, the binders and additives in monolithic refractories enhance their resistance to thermal shock, which arises from sudden temperature changes. This resistance is vital in iron and steel production since the refractories are frequently exposed to extreme temperature differentials. Lastly, the monolithic nature of these refractories eliminates the presence of joints and gaps commonly found in traditional brick refractories. The absence of joints minimizes the risk of heat leakage and infiltration of molten metal or slag, ensuring a more efficient and durable lining. In conclusion, monolithic refractories are specifically engineered to endure the high temperatures involved in iron and steel production. Their composition, structure, and unique properties enable them to withstand extreme heat, rapid temperature changes, chemical reactions, and thermal stresses, making them essential components in the manufacturing of iron and steel.
- Q:How are monolithic refractories different from traditional refractory materials?
- Monolithic refractories differ from traditional refractory materials in that they are formed and applied in a single, continuous mass or form, while traditional refractory materials are typically shaped and fired before installation. This allows monolithic refractories to be more versatile, easier to install, and provide better thermal insulation and resistance to high temperatures. Additionally, monolithic refractories have better resistance to thermal shock and chemical attack, making them more suitable for various industrial applications.
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Monoblock Stopper for continuous casting
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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