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 challenges faced in the application of monolithic refractories?: There are several challenges faced in the application of monolithic refractories. Firstly, one of the major challenges is the proper installation of monolithic refractories. Unlike traditional brick refractories that can be easily laid and stacked, monolithic refractories require specialized skills and techniques for proper application. The consistency and workability of the refractory material must be carefully controlled, and the installation process often requires the use of specialized equipment such as gunning machines or vibrating tools. Another challenge is the selection of the appropriate monolithic refractory material for a specific application. There are various types of monolithic refractories available, each with its own unique properties and suitability for different environments. Choosing the wrong type of refractory material can result in premature failure and costly repairs. Therefore, it is essential to understand the operating conditions, such as temperature, chemical exposure, and mechanical stress, to select the most suitable monolithic refractory material. Additionally, monolithic refractories are susceptible to thermal shock and erosion due to their composition and application method. They are typically made from fine powders that are mixed with water or other binding agents to form a paste. This paste is then applied and dried to form a solid refractory lining. However, during the heating and cooling cycles, monolithic refractories can experience thermal expansion and contraction, leading to cracking and spalling. Moreover, the chemical reactions occurring in some industrial processes can cause chemical attack and erosion of the refractory lining, reducing its lifespan. Furthermore, maintenance and repair of monolithic refractories can also be challenging. Unlike brick refractories that can be easily replaced, repairing monolithic refractories often requires skilled personnel and specialized techniques. The damaged area needs to be removed, and a new layer of refractory material must be applied, ensuring proper bonding and compatibility with the existing lining. This process can be time-consuming and costly, particularly in high-temperature applications where extended downtime can result in significant production losses. In summary, the challenges faced in the application of monolithic refractories include proper installation techniques, selection of the appropriate material, susceptibility to thermal shock and erosion, and complex maintenance and repair procedures. Overcoming these challenges requires expertise, careful planning, and a thorough understanding of the specific operating conditions and requirements for each application.

Q: What are the advantages of using castables in the iron and steel industry?: There are several advantages of using castables in the iron and steel industry. Firstly, castables offer excellent thermal shock resistance, allowing them to withstand sudden temperature changes during the manufacturing process. This helps to prevent cracking and prolongs the lifespan of the refractory lining. Secondly, castables provide high strength and abrasion resistance, making them suitable for withstanding the harsh conditions of iron and steel production. They can withstand the abrasive nature of molten metal and slag, ensuring long-lasting performance. Additionally, castables offer flexibility in terms of installation. They can be poured or gunned into place, allowing for easy and efficient lining of various shapes and sizes. This flexibility also helps in repairs and maintenance, as damaged areas can be easily patched up. Lastly, castables have good chemical resistance, enabling them to withstand the corrosive effects of molten metal and various metallurgical processes. This resistance helps to maintain the integrity of the refractory lining and ensures consistent production quality. Overall, the advantages of using castables in the iron and steel industry include thermal shock resistance, high strength, abrasion resistance, flexibility in installation, and chemical resistance. These properties contribute to improved efficiency, extended refractory life, and reduced downtime, ultimately benefiting the overall productivity of the industry.

Q: How do monolithic refractories resist high temperatures?: Monolithic refractories resist high temperatures due to their unique composition and structure. These refractories are made from a single material or a blend of materials, such as alumina, silica, and magnesia, which have high melting points and can withstand extreme heat. Additionally, their monolithic nature eliminates joints and seams, reducing the risk of thermal shock and allowing them to adapt to thermal expansion and contraction. Their dense and compact structure also minimizes porosity, preventing the penetration of heat and ensuring their durability under high-temperature conditions.

Q: What are the different techniques for installing monolithic refractories?: Installing monolithic refractories can be accomplished using various techniques, each with its own advantages and suitability for different applications. Some commonly employed methods are as follows: 1. Casting: This involves creating a slurry by mixing the refractory material with water or a binder. The resulting mixture is then poured into molds or directly onto the prepared surface. Once set and hardened, it forms a solid monolithic structure. 2. Gunning: By utilizing a gunning machine, the refractory material is sprayed onto the surface. The material is combined with water or a binder to form a wet mix, which is then propelled onto the surface at high velocity. Gunning is commonly used for on-site repairs or lining larger areas. 3. Ramming: In this technique, the refractory material is compacted into place using a pneumatic or manual ramming tool. Prior to ramming, the material is typically preheated to decrease moisture content and enhance workability. Ramming is often employed for lining smaller areas or filling gaps between bricks or precast shapes. 4. Shotcreting: Similar to gunning, shotcreting involves using a dry mix of refractory material. The dry mix is combined with water or a binder just before being sprayed onto the surface using a high-pressure nozzle. Shotcreting is frequently used for lining larger areas or creating intricate shapes. 5. Troweling: This technique entails applying the refractory material onto the surface using a trowel or similar tool. The material used is typically a wet mix that is spread and smoothed manually. Troweling is commonly employed for patching or repairing small areas, as well as for adding finishing touches. 6. Vibrating: By using a vibrating tool or vibrator, the refractory material is compacted and any air pockets are eliminated. Vibrating is often used to improve the density and strength of the monolithic refractory after it has been installed using other techniques. It is essential to consider various factors, such as the type of refractory material, the size and shape of the area to be lined, and the specific requirements of the application when selecting the appropriate technique. Additionally, proper surface preparation and adherence to installation guidelines are crucial to ensure the effectiveness and longevity of the monolithic refractory.

Q: How do monolithic refractories prevent slag penetration?: Monolithic refractories prevent slag penetration through several mechanisms. Firstly, monolithic refractories are made up of high-quality materials that have excellent resistance to slag attack. These materials, such as alumina, silica, and magnesia, have a high melting point and can withstand the corrosive nature of the slag. Secondly, monolithic refractories are designed with a dense and compact structure that minimizes the porosity. Slag penetration occurs when the molten slag infiltrates the pores and cracks of the refractory material. By reducing the porosity, monolithic refractories create a barrier that restricts the entry of slag into the refractory lining. Additionally, monolithic refractories can be chemically bonded to the substrate, forming a strong and impermeable bond. This bond further enhances the resistance to slag penetration by preventing any gaps or weak points where the slag can penetrate. Moreover, monolithic refractories can be designed with a high thermal shock resistance. Slag penetration is often intensified by thermal cycling, where the refractory material undergoes rapid temperature changes. Monolithic refractories with high thermal shock resistance can withstand these temperature fluctuations without cracking or spalling, thus reducing the risk of slag penetration. Furthermore, the proper installation and maintenance of monolithic refractories play a crucial role in ensuring their effectiveness against slag penetration. The refractory lining needs to be properly designed, using appropriate thickness and geometry, to provide maximum protection against slag attack. Regular inspection and repair of any damaged or worn-out areas can also prevent slag penetration. In conclusion, monolithic refractories prevent slag penetration through their excellent resistance to slag attack, dense structure, chemical bonding, high thermal shock resistance, and proper installation and maintenance. These factors work together to create a strong and impermeable barrier that protects the underlying substrate from the corrosive effects of slag.

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 a type of refractory material that is composed of a single, homogeneous structure, in contrast to traditional refractories that are made up of multiple bricks or tiles. Monolithic refractories offer several advantages for lining tundishes and molds in continuous casting processes. Firstly, their monolithic nature allows for easy installation and repair, as they can be cast or gunned into place, eliminating the need for complex brickwork. This results in reduced downtime and increased productivity. Additionally, monolithic refractories have excellent thermal shock resistance, which is crucial for tundishes and molds that experience rapid and extreme temperature changes during the casting process. Their high thermal conductivity also ensures efficient heat transfer, promoting uniform cooling and solidification of the cast metal. Moreover, monolithic refractories offer good resistance to chemical attack, ensuring long-lasting performance even in the presence of molten metal and slag. They also have low porosity, preventing the penetration of metal and preventing the formation of cracks and spalling. Overall, monolithic refractories are a viable and effective choice for lining continuous casting tundishes and molds, providing superior performance, ease of installation, and durability in the demanding conditions of the casting process.

Q: How do monolithic refractories resist chemical attacks from molten metals and slag?: Monolithic refractories are engineered to withstand chemical attacks caused by molten metals and slag. They possess various essential qualities that enable them to endure such harsh conditions. To begin with, monolithic refractories comprise top-notch materials with exceptional chemical resistance. These materials, including alumina, magnesia, and chrome, have a high melting point and remain stable even when exposed to extreme temperatures and corrosive substances. This chemical stability ensures that the refractory maintains its integrity and structural strength when in contact with molten metals and slag. Moreover, monolithic refractories have a compact and dense structure. This microstructure serves as a barrier, preventing molten metals and slag from penetrating the refractory material. By limiting the contact between the corrosive substances and the refractory, the dense structure reduces the likelihood of chemical reactions and erosion, thereby enhancing the refractory's resistance to chemical attacks. Additionally, monolithic refractories often contain additives and binders that enhance their chemical resistance. These additives form a protective layer on the refractory surface, acting as a shield against chemical attacks. They can also react with certain corrosive substances, forming stable compounds that further inhibit the penetration and corrosion of the refractory material. Furthermore, monolithic refractories are designed to have minimal porosity. This low porosity minimizes the absorption of molten metals and slag, preventing them from infiltrating the refractory and causing damage. By reducing the permeability of the material, the refractory can maintain its structural integrity and resist chemical attacks for extended periods. In conclusion, monolithic refractories withstand chemical attacks from molten metals and slag due to their high-quality materials, dense structure, additives, and low porosity. These combined properties enable the refractories to endure aggressive environments and maintain their performance and longevity in industrial applications.

Q: How do monolithic refractories enhance the efficiency of reheating furnaces?: Monolithic refractories enhance the efficiency of reheating furnaces by providing better thermal insulation, reducing heat loss, and improving the overall heat transfer within the furnace. These refractories have excellent resistance to high temperatures and thermal shock, allowing them to withstand extreme conditions for prolonged periods. By minimizing heat loss and maintaining a consistent temperature, they ensure that the reheating process is more energy-efficient, resulting in reduced fuel consumption and increased productivity.

Q: What are the specific requirements of monolithic refractories for steel ladle purging applications?: To ensure optimal performance and durability, monolithic refractories used in steel ladle purging applications must meet certain requirements. Firstly, they need to possess high thermal stability and resistance to thermal shock, as the steelmaking process involves extreme temperatures. This is crucial in order to prevent any cracking or spalling of the refractory lining. Additionally, monolithic refractories used for ladle purging applications should exhibit excellent corrosion resistance against molten steel and slag. They must be able to withstand the aggressive chemical environment without experiencing significant deterioration, as this could lead to contamination of the steel and negatively impact its quality. Another essential requirement is good erosion resistance. The refractories should be capable of withstanding the high velocity of the purging process, which involves the injection of argon or other gases into the ladle to remove impurities. This erosion resistance ensures that the refractory lining remains intact and does not wear away during operation. Furthermore, monolithic refractories for ladle purging applications should have low porosity and high density. This prevents the infiltration of molten steel and slag into the refractory lining, thus reducing the risk of thermal spalling and corrosion. Lastly, these refractories should exhibit good thermal conductivity in order to efficiently transfer heat from the steel to the refractory lining. This allows for better temperature control and energy efficiency during the purging process. Overall, the specific requirements for monolithic refractories in steel ladle purging applications include high thermal stability, corrosion resistance, erosion resistance, low porosity, high density, and good thermal conductivity. Meeting these requirements ensures that the refractories can withstand the harsh conditions of the steelmaking process, maintain their integrity, and contribute to the production of high-quality steel.

Q: How are monolithic refractories installed and repaired in iron and steel production facilities?: Monolithic refractories play a crucial role in iron and steel production facilities by offering insulation and protection against high temperatures, chemical corrosion, and mechanical wear. To install and repair these refractories, careful planning, expertise, and adherence to safety protocols are necessary. To begin installation, the surface must be prepared by eliminating loose material and cleaning the area thoroughly. This step guarantees proper adhesion of the refractory material and may also involve roughening or texturing the surface for better bonding. Next, a workable consistency is achieved by mixing the monolithic refractory material with water or a binder. The material is then applied to the prepared surface using techniques like casting, gunning, ramming, or troweling. The choice of application method depends on factors such as the type of refractory material, repair area, and desired outcome. During installation, it is vital to carefully follow the manufacturer's instructions regarding mixing ratios, curing times, and drying temperatures. Improper installation can result in reduced refractory performance, premature failure, and safety hazards. Repairing monolithic refractories in iron and steel production facilities is an ongoing process due to the harsh operating conditions and mechanical stresses they endure. It is crucial to promptly address any signs of damage or wear to prevent further deterioration. The first step in the repair process is to assess the extent of the damage. This can be achieved through visual inspection, thermal imaging, or non-destructive testing techniques. Once the damage is identified, the appropriate repair method can be determined. Minor repairs can often be accomplished using patching materials that have a composition similar to the original refractory. These materials are mixed with water or a binder to form a paste, which is then applied to the damaged area and allowed to cure. For more extensive repairs, the damaged refractory material may need to be completely removed using mechanical methods like chipping, grinding, or cutting. After removing the damaged material, the surface is prepared as mentioned earlier, and new refractory material is installed using the appropriate application method. It is important to note that the repair process should be carried out by trained personnel with expertise in refractory installation and repair. Safety precautions, such as wearing protective clothing, using proper tools, and following established procedures, should always be observed. In conclusion, the installation and repair of monolithic refractories in iron and steel production facilities necessitate careful planning, adherence to manufacturer's instructions, and expertise in refractory materials. By following proper procedures and promptly addressing any damage, these facilities can ensure the longevity and efficiency of their refractory linings, ultimately contributing to the smooth operation of their production processes.

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