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: How are monolithic refractories different from traditional brick refractories?
- Monolithic refractories differ from traditional brick refractories in terms of their composition and application method. While traditional brick refractories are made from individual bricks that are shaped and arranged to form a structure, monolithic refractories are a single, seamless material that is applied in a liquid or semi-liquid form and then cured or dried to form a solid mass. This allows monolithic refractories to be more versatile in terms of application, as they can be easily poured, sprayed, or troweled into complex shapes and installations. Additionally, monolithic refractories often offer better thermal insulation, higher resistance to thermal shock, and improved mechanical strength compared to traditional brick refractories.
- Q: How do monolithic refractories improve the efficiency of reheating furnaces in steel plants?
- The efficiency of reheating furnaces in steel plants is greatly improved by the use of monolithic refractories. Specifically designed to withstand high temperatures and harsh conditions, these refractories are an ideal choice for steel plants. One important way in which monolithic refractories enhance furnace efficiency is by decreasing heat loss. With their excellent insulation properties, these refractories minimize the transfer of heat from the furnace to its surroundings. As a result, less energy is wasted and the furnace can maintain its desired temperature more effectively. Furthermore, monolithic refractories contribute to a more uniform and controlled distribution of heat within the furnace. They can be easily shaped and installed to create a seamless lining, ensuring that heat is evenly spread throughout the furnace chamber. This even distribution of heat eliminates any hotspots or cold spots, resulting in a more efficient heating process. Another crucial role of monolithic refractories is reducing downtime and maintenance requirements. Unlike traditional brick linings, which are prone to cracking and erosion, monolithic refractories offer superior resistance to wear and tear. This increased durability reduces the need for frequent repairs and replacements, allowing for uninterrupted furnace operation and increased overall efficiency. Moreover, monolithic refractories help improve energy efficiency by decreasing fuel consumption. The superior insulation properties of these refractories help retain heat within the furnace, reducing the amount of energy needed to maintain the desired temperature. This leads to significant energy savings for steel plants, as less fuel is required to achieve the same heating results. In conclusion, the efficiency of reheating furnaces in steel plants is significantly enhanced by the use of monolithic refractories. These refractories reduce heat loss, ensure uniform heat distribution, minimize downtime and maintenance, and decrease fuel consumption. By incorporating these refractories into their furnace linings, steel plants can increase productivity, reduce energy costs, and improve overall operational efficiency.
- Q: How do monolithic refractories contribute to the reduction of heat loss in iron and steel plants?
- Monolithic refractories play a crucial role in reducing heat loss in iron and steel plants due to their unique properties and application methods. These refractories are composed of single, continuous materials with no joints or seams, allowing for excellent thermal insulation and minimizing heat transfer. One way monolithic refractories contribute to heat loss reduction is through their low thermal conductivity. These materials have a high resistance to heat flow, which means they can effectively prevent the loss of thermal energy from the walls and linings of furnaces, ladles, and other equipment used in iron and steel production. By providing a barrier between the hot interior and the cooler surroundings, monolithic refractories minimize heat escape and maintain a more stable and efficient thermal environment. Additionally, monolithic refractories are known for their excellent adhesion and high strength, which enables them to form a tight seal and eliminate gaps or cracks in the lining of the equipment. This prevents the ingress of cold air or the escape of hot gases, further reducing heat loss and ensuring the desired operating temperatures are maintained. Furthermore, monolithic refractories can be easily applied and repaired, allowing for a more efficient and cost-effective maintenance process. Regular inspections and repairs can be carried out to address any wear or damage to the refractory lining, ensuring its optimal performance and minimizing heat loss over time. In summary, monolithic refractories contribute to the reduction of heat loss in iron and steel plants through their low thermal conductivity, excellent adhesion, and high strength. By effectively insulating the equipment and preventing heat escape, these refractories contribute to a more energy-efficient and productive operation in the iron and steel industry.
- Q: Can monolithic refractories be used for the lining of continuous casting tundishes and molds?
- Yes, monolithic refractories can be used for the lining of continuous casting tundishes and molds. Monolithic refractories are versatile and can be shaped or molded to fit the specific requirements of the tundish and mold lining. They offer excellent thermal shock resistance and high-temperature stability, making them suitable for the harsh conditions of continuous casting. Additionally, monolithic refractories have low porosity, which helps prevent the penetration of molten metal and promotes longer service life for the tundish and mold lining.
- Q: What are the considerations for repairing and patching monolithic refractories?
- Considerations for repairing and patching monolithic refractories include assessing the extent of the damage, identifying the cause of the damage, selecting the appropriate repair material, ensuring proper bonding and curing, and following manufacturer's instructions and recommended procedures. Additionally, factors such as temperature, chemical exposure, and mechanical stress should be taken into account to ensure the repaired refractory maintains its performance and longevity.
- Q: What are the cost implications of using monolithic refractories in the iron and steel industry?
- The use of monolithic refractories in the iron and steel industry can have various cost implications. Firstly, the initial cost of monolithic refractories tends to be higher compared to traditional brick refractories. Monolithic refractories are typically made from high-quality raw materials and require specialized installation techniques, leading to higher upfront expenses. However, these higher upfront costs can be offset by the benefits provided by monolithic refractories in terms of performance, durability, and reduced maintenance requirements. One of the major cost implications of using monolithic refractories is their extended service life. Monolithic refractories have excellent thermal shock resistance and can withstand high temperatures, mechanical stress, and corrosive environments. This results in reduced downtime and fewer replacement or repair needs, leading to overall cost savings in the long run. Additionally, monolithic refractories offer flexibility in design and application. They can be easily shaped and installed to fit complex geometries, resulting in optimized furnace linings and improved energy efficiency. By minimizing heat loss, monolithic refractories can reduce fuel consumption and lower energy costs for the iron and steel industry. Furthermore, the installation and maintenance of monolithic refractories can be less labor-intensive compared to brick refractories. This can result in reduced labor costs and shorter installation time, leading to potential cost savings for the industry. Another cost implication of using monolithic refractories is their impact on productivity. Monolithic refractories provide improved thermal insulation, reduced slag adhesion, and enhanced resistance to wear and erosion. These properties can lead to increased production rates, improved product quality, and minimized process interruptions, ultimately translating into higher profitability for iron and steel manufacturers. It is important to note that the cost implications of using monolithic refractories can vary depending on the specific application, furnace type, and operating conditions. Therefore, a thorough cost-benefit analysis should be conducted to evaluate the overall economic impact of implementing monolithic refractories in the iron and steel industry.
- Q: What are some common maintenance practices for monolithic refractories in iron and steel furnaces?
- There are several common maintenance practices for monolithic refractories in iron and steel furnaces: 1. It is essential to conduct regular inspections. Trained professionals should inspect the refractories to identify any potential issues, such as wear, erosion, or damage. 2. Promptly repairing and patching damaged or eroded areas is crucial to maintain the integrity of the refractories. Refractory mortars or castable refractories can be used for this purpose. 3. Regularly cleaning the refractory lining is important to remove any build-up of impurities that can affect performance. Mechanical cleaning with brushes or scrapers, as well as chemical cleaning with acids, can be employed. 4. Controlled thermal cycling is often performed to condition and strengthen the refractories. Gradually increasing and decreasing the furnace temperature improves their resistance to thermal shock. 5. Applying protective coatings or sealants to the refractory lining enhances its resistance to chemical attack, erosion, and thermal cycling. These act as barriers against molten metals or slags. 6. Monitoring and controlling operating conditions inside the furnace, such as temperature, pressure, and atmosphere, is crucial. This helps prevent sudden changes that may negatively affect the refractories. 7. Regular training and education for furnace operators and maintenance personnel are crucial. This ensures they understand the importance of proper refractory maintenance, reducing the risk of premature failure. Implementing these maintenance practices significantly prolongs the lifespan of monolithic refractories in iron and steel furnaces. It maximizes their performance, leading to improved efficiency and cost-effectiveness in the production process.
- Q: How do monolithic refractories prevent thermal shock in the iron and steel industry?
- Monolithic refractories prevent thermal shock in the iron and steel industry by providing a continuous and seamless lining that can withstand extreme temperatures and sudden temperature changes. Their high thermal conductivity and low thermal expansion properties allow them to effectively distribute and absorb heat, reducing the likelihood of thermal stress and cracking. Additionally, their ability to form strong bonds with the furnace walls prevents the entry of hot gases and molten metal, further protecting against thermal shock.
- Q: Can monolithic refractories be used for the lining of reheating furnaces and walking beam furnaces?
- Yes, monolithic refractories can be used for the lining of reheating furnaces and walking beam furnaces. Monolithic refractories are versatile and can be shaped to fit the specific requirements of these furnaces. They offer excellent thermal insulation, high temperature resistance, and durability, making them suitable for withstanding the extreme conditions within these furnaces. Additionally, monolithic refractories can be easily installed, repaired, and replaced, making them a practical choice for lining these types of furnaces.
- Q: What are the advantages of using low-moisture castables in the iron and steel industry?
- There are several advantages of using low-moisture castables in the iron and steel industry. Firstly, low-moisture castables have a lower water content, which means they require less drying time. This is advantageous in the iron and steel industry where time is of the essence, as it reduces the overall production time and allows for faster turnaround. Secondly, low-moisture castables have superior strength and durability compared to traditional castables. They are able to withstand high temperatures and harsh environments without cracking or breaking. This is crucial in the iron and steel industry where extreme heat and abrasion are common, as it ensures the castables can endure the demanding conditions and maintain their structural integrity. Furthermore, low-moisture castables have excellent thermal shock resistance. This means they can withstand rapid changes in temperature without cracking or spalling, which is beneficial in the iron and steel industry where heating and cooling processes are frequent. Another advantage is that low-moisture castables have a higher density compared to traditional castables. This results in improved insulation properties, as they have a lower thermal conductivity. This is important in the iron and steel industry as it helps to conserve energy and reduce heat loss during various processes, ultimately leading to cost savings. Lastly, low-moisture castables offer versatility in terms of application. They can be used for various purposes in the iron and steel industry, such as lining ladles, furnaces, tundishes, and other high-temperature equipment. This versatility allows for greater flexibility in designing and constructing the infrastructure required for iron and steel production. Overall, the advantages of using low-moisture castables in the iron and steel industry include reduced drying time, increased strength and durability, enhanced thermal shock resistance, improved insulation properties, and versatility in application. These benefits ultimately contribute to more efficient and cost-effective operations in the iron and steel industry.
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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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