$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 1$
$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 2$
$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 3$

$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry$

$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 1$

$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 2$

$Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry System 3$

Monolithic Refractories Zirconia Slide Gate Nozzle for Iron and Steel Industry

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 m.t.

Supply Capability:: 100000 m.t./month

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Item B60,B50,C40type	Al-C Slide Gate	Al-Zr-C Slide Gate
AlC-70	AlC -75	AlC -80	AlC-85	AlC -86	AlZrC -70	AlZrC-75	AlZrC -77
Al2O3,%	70	75	80	85	86	70	75	77
C+SiC,%	7	7	5	5	4	7	7	7
ZrO2,%	-	-	-	-	-	6	6	2.5
A.P.,% max	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 min	65	70	100	100	100	110	115	100

Item B60,B50,C40type	Al-C Slide Gate
AlC-70A	AlC-75A	AlC-80A	AlC-85A	AlC-86A
Al2O3,%	70	75	80	85	86
C,%	7	7	5	5	4
A.P.,% max	10	10	8	10	7
B.D. g/cm3 min	2.8	2.9	3.0	3.0	2.95
C.C.S., MPa min	65	70	100	100	100

Item	ZN- 65	ZN- 70	ZN- 75	ZN- 80	ZN- 85	ZN- 90	ZN- 93A	ZN- 93B	ZN- 93C	ZN- 93D	ZN- 95A	ZN- 95B	ZN- 96
ZrO2(%)	≥65	≥70	≥75	≥80	≥85	≥90	≥93	≥93	≥93	≥93	≥95	≥95	≥96
Bulk density (g/cm3)	≥3.8	≥3.8	≥3.9	≥4.0	≥4.1	≥4.3	≥5.1	≥4.9	≥4.7	≥4.4	≥4.6	≥5.2	≥5.2
Apparent Porosity(%)	≤23	≤22	≤22	≤20	≤20	≤20	≤13	≤15	≤18	≤20	≤20	≤9	≤5.6
Thermal shock resistance (cycles)(1100℃,water cooling)	>5	>5	>5	>5	>5	>5	>5	>5	>5	>5	>5	>8	>10

FAQ

We have organized several common questions for our clients，may help you sincerely：

①How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

Q: What are the main factors affecting the thermal expansion of monolithic refractories?: The thermal expansion of monolithic refractories is influenced by various factors. These factors comprise the type of refractory material, the temperature range, the chemical composition, and the physical structure of the refractory. To begin with, the thermal expansion behavior of a refractory is significantly determined by its type of material. Different types of refractories, such as alumina-based, silica-based, and magnesia-based refractories, possess varying coefficients of thermal expansion (CTE). For instance, alumina-based refractories generally exhibit a lower CTE in comparison to silica-based refractories. Consequently, the choice of refractory material holds great influence over its thermal expansion characteristics. Secondly, the thermal expansion of a refractory is affected by the temperature range to which it is exposed. As the temperature rises, the refractory material expands due to the absorption of thermal energy. However, different refractories demonstrate different expansion behaviors depending on temperature. Some refractories may exhibit a linear or near-linear expansion with temperature, while others may display non-linear or step-wise expansion. Hence, the temperature range of operation is a critical factor in determining the suitability of a refractory for a specific application. The chemical composition of the refractory also has an impact on its thermal expansion. The presence of various chemical elements and compounds in the refractory material can influence its expansion behavior. For instance, the addition of specific oxides, like magnesia or zirconia, can modify the CTE of the refractory. Similarly, impurities or variations in the chemical composition can introduce discrepancies in expansion characteristics among refractories of the same type. Lastly, the physical structure of the refractory, encompassing factors such as porosity, density, and microstructure, can influence thermal expansion. The existence of open or closed pores within the refractory can affect its ability to expand uniformly under thermal stress. The density of the refractory also plays a role, as denser refractories tend to have lower thermal expansion. Moreover, the microstructure, including grain size and orientation, can impact the overall expansion behavior of the refractory. To conclude, the primary factors influencing the thermal expansion of monolithic refractories include the type of refractory material, temperature range, chemical composition, and physical structure. A comprehensive understanding of these factors is crucial in selecting the appropriate refractory for a specific application to ensure optimal performance and durability.

Q: How do monolithic refractories withstand the chemical attacks in aluminum furnace applications?: Due to its unique composition and properties, monolithic refractories can resist chemical attacks in aluminum furnace applications. These materials are designed to have high resistance to the corrosive effects of molten aluminum and other chemicals found in the furnace environment. To begin with, monolithic refractories are created by combining different minerals like alumina, silicon carbide, and zirconia. These minerals have high melting points and excellent chemical stability. Acting as a barrier between corrosive substances and the underlying structure, they prevent penetration or damage to the refractory lining. Moreover, monolithic refractories typically contain high levels of alumina, which provides exceptional resistance to chemical attacks. Alumina has a strong affinity for oxygen, resulting in the formation of a stable oxide layer on the refractory material's surface. This layer acts as a protective barrier against corrosive elements and reduces the rate of penetration. In addition, monolithic refractories are often designed with a dense microstructure and low porosity. This ensures fewer pathways for corrosive substances to attack the refractory material. The denser the material, the less susceptible it is to chemical attacks. Furthermore, the resistance of monolithic refractories can be further improved by incorporating additives or binders. These additives may consist of organic or inorganic materials that enhance protection against corrosive substances. Overall, monolithic refractories are engineered specifically to withstand the harsh conditions of aluminum furnace applications. Their unique composition, high alumina content, dense microstructure, and resistance-enhancing additives all contribute to their ability to withstand chemical attacks and prolong the lifespan of refractory linings in aluminum furnaces.

Q: How do monolithic refractories resist chemical corrosion in iron and steel applications?: Monolithic refractories are highly resistant to chemical corrosion in iron and steel applications due to their unique characteristics and composition. These refractories are engineered with a combination of different materials such as aggregates, binders, and additives, which provide them with exceptional resistance to chemical attack. One key factor that contributes to their resistance is the use of high-quality raw materials. Monolithic refractories are typically made from high-alumina or alumina-silica aggregates, which have excellent resistance to chemical reactions. These aggregates are carefully selected to ensure they can withstand the harsh conditions encountered in iron and steel applications, including exposure to molten metal, slag, and various chemical compounds. Moreover, the binders used in monolithic refractories play a crucial role in their resistance to chemical corrosion. Common binders include clay, calcium aluminate cement, or colloidal silica. These binders help to hold the refractory materials together and provide additional protection against chemical attack. They form a dense and impermeable structure, which prevents corrosive substances from penetrating the refractory lining. Furthermore, monolithic refractories often incorporate additives that enhance their chemical resistance. These additives can include antioxidants, anti-spalling agents, and various other compounds that further protect the refractory lining from chemical attack. These additives help to neutralize corrosive elements, inhibit the formation of harmful compounds, and reduce the overall corrosion rate. Additionally, the unique installation method of monolithic refractories also contributes to their resistance to chemical corrosion. Unlike traditional brick refractories, monolithic refractories are installed as a single, continuous lining. This eliminates the need for joints or gaps that could potentially serve as weak points for chemical penetration. The monolithic nature of these refractories ensures a tight and seamless lining, reducing the vulnerability to chemical attack. Overall, the combination of high-quality raw materials, effective binders, and beneficial additives, along with the monolithic installation technique, grants monolithic refractories exceptional resistance to chemical corrosion in iron and steel applications. This resistance allows them to withstand the harsh conditions encountered in these industries, ensuring the longevity and efficiency of the refractory 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 advantages of using plastic refractories in the iron and steel industry?: There are several advantages of using plastic refractories in the iron and steel industry. Firstly, plastic refractories offer excellent thermal insulation properties. They have low thermal conductivity, which means they can effectively retain heat and prevent excessive heat loss during the manufacturing process. This is crucial in the iron and steel industry as maintaining high temperatures is essential for the proper functioning of furnaces and other equipment. Secondly, plastic refractories have superior resistance to chemical attack and corrosion. They can withstand exposure to various chemicals, including molten metals and slag, without deteriorating or losing their structural integrity. This is especially important in the iron and steel industry, where materials come into contact with highly corrosive substances on a regular basis. Another advantage of plastic refractories is their ease of installation and repair. Unlike other refractory materials, plastic refractories can be easily shaped and molded into the desired form, allowing for precise fitting and quick installation. Additionally, they can be easily repaired or patched in case of damage or wear, which reduces downtime and maintenance costs. Furthermore, plastic refractories exhibit good mechanical strength and abrasion resistance. This enables them to withstand the physical stresses and mechanical forces present in the iron and steel industry, such as vibrations, impacts, and mechanical loading. Their high resistance to wear and tear ensures longevity and reduces the need for frequent replacements. Lastly, plastic refractories have a high thermal shock resistance. They can withstand rapid temperature changes without cracking or spalling. This is beneficial in the iron and steel industry, where materials are subjected to extreme temperature differentials, such as during the heating and cooling cycles of furnaces. In conclusion, the advantages of using plastic refractories in the iron and steel industry include excellent thermal insulation, resistance to chemical attack, ease of installation and repair, good mechanical strength, abrasion resistance, and high thermal shock resistance. These properties make plastic refractories an ideal choice for various applications in this industry, ensuring efficient and reliable operations.

Q: How do monolithic refractories enhance the performance of ladle and tundish covers?: The performance of ladle and tundish covers is significantly improved by the utilization of monolithic refractories. There are several ways in which this enhancement is achieved. Primarily, monolithic refractories possess remarkable thermal insulation properties. The steelmaking process subjects ladles and tundishes to extreme temperatures. Through the use of monolithic refractories, the covers effectively trap and retain heat, preventing excessive heat loss. This insulation ability not only helps maintain the desired temperature of the molten steel but also reduces the energy consumption required for heating. Secondly, monolithic refractories demonstrate exceptional resistance to thermal shock. When ladles and tundishes are filled with molten steel, there is a rapid and drastic temperature change in the refractory lining. This sudden shift can cause cracking and spalling of the lining, jeopardizing its integrity. However, monolithic refractories possess high thermal shock resistance, enabling them to endure these abrupt temperature fluctuations without significant damage. This ensures the longevity and durability of the ladle and tundish covers. Additionally, monolithic refractories exhibit excellent corrosion resistance. The presence of molten steel and other corrosive substances in ladles and tundishes can erode the refractory lining over time. Nonetheless, monolithic refractories are specifically engineered to withstand these corrosive environments, shielding the covers from chemical attack and erosion. This corrosion resistance enhances the lifespan of the ladle and tundish covers, reducing the need for frequent replacements and associated downtime. Furthermore, monolithic refractories provide good mechanical strength and stability. Ladles and tundishes undergo various mechanical stresses, including the weight of the molten steel, thermal expansions, and vibrations. The use of monolithic refractories furnishes the necessary strength and stability to endure these mechanical forces, averting structural failures and maintaining the integrity of the covers. To summarize, monolithic refractories heighten the performance of ladle and tundish covers by providing exceptional thermal insulation, resistance to thermal shock and corrosion, and sufficient mechanical strength. These properties guarantee efficient steelmaking processes, diminish maintenance costs, and extend the lifespan of ladles and tundishes.

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 typical compositions of monolithic refractories?: Monolithic refractories are typically composed of a combination of aggregates, binders, and additives. Aggregates are materials such as alumina, magnesia, or silicon carbide that provide the main refractory properties. The choice of aggregate depends on the desired characteristics of the refractory, such as resistance to high temperatures, thermal shock, or chemical attack. Binders are used to bind the aggregates together and give the refractory its shape and strength. Common binders include clay, calcium aluminate cement, or colloidal silica. The binder also contributes to the overall performance of the refractory, influencing properties such as thermal conductivity and chemical resistance. Additives are often incorporated into the composition to improve specific properties or enhance the processing of the monolithic refractory. These additives can include plasticizers, which improve workability and allow for easier installation, or antioxidants, which can increase the refractory's resistance to oxidation. Overall, the specific composition of a monolithic refractory can vary depending on the intended application and the desired performance characteristics. Different combinations of aggregates, binders, and additives can be tailored to suit specific temperature ranges, chemical environments, or mechanical stresses.

Q: What are the main challenges in designing the lining system with monolithic refractories?: Achieving proper installation is one of the primary difficulties in designing the lining system using monolithic refractories. Skilled labor and precise application techniques are required for the installation, which can involve casting, gunning, or shotcreting. The performance and longevity of the lining system can be compromised if any errors or inconsistencies occur during installation. Ensuring sufficient bonding between the monolithic refractories and the existing structure presents another challenge. To prevent delamination or separation of the refractory material from the underlying surface, proper adhesion is crucial. Factors like surface preparation, temperature differences, and mechanical stress can affect the strength of the bond, necessitating careful consideration during the design phase. The compatibility of monolithic refractories with different operating conditions also poses a challenge. Refractory materials are exposed to extreme temperatures, chemical reactions, and thermal cycling, which can result in degradation and failure. Designing a lining system that can withstand these conditions requires a thorough understanding of the refractory properties and the specific requirements of the application. Furthermore, selecting the appropriate monolithic refractory material for a given lining system is a significant challenge. There are various types of monolithic refractories available, each with its own advantages and disadvantages. When choosing the most suitable material for the application, factors like temperature range, chemical composition, thermal conductivity, abrasion resistance, and thermal shock resistance must be taken into account. Lastly, maintaining the integrity of the monolithic refractory lining system throughout its lifespan is challenging. Regular inspections, repairs, and maintenance are necessary to address issues such as cracks, erosion, or spalling. Developing a comprehensive maintenance plan and ensuring access to skilled personnel for repairs are crucial aspects of designing a successful lining system with monolithic refractories.

Q: How do monolithic refractories contribute to the safety of iron and steel plants?: Monolithic refractories play a crucial role in ensuring the safety of iron and steel plants. These refractories are specially designed to withstand high temperatures, chemical attacks, and mechanical stresses commonly encountered in these industrial settings. By utilizing monolithic refractories, iron and steel plants can benefit in the following ways: 1. Thermal resistance: Monolithic refractories have excellent resistance to extreme temperatures, preventing heat loss and ensuring the efficient operation of various equipment and systems. This thermal insulation contributes to the safety of the plant by reducing the risk of overheating, which could lead to equipment failure or even catastrophic accidents. 2. Chemical resistance: Iron and steel plants involve the use of various chemicals, including molten metal, slag, and corrosive gases. Monolithic refractories exhibit high resistance to these aggressive chemical environments, preventing corrosion, erosion, and material degradation. This resistance ensures the integrity of refractory linings, reducing the risk of leaks, spills, and contamination that could jeopardize the safety of workers and the environment. 3. Structural stability: Monolithic refractories provide excellent mechanical strength, offering structural stability to the linings of furnaces, ladles, and other equipment. This stability is crucial for the safe operation of iron and steel plants, as it minimizes the risk of structural failure, collapse, or damage caused by mechanical stresses or heavy loads. 4. Rapid repair and maintenance: Monolithic refractories offer the advantage of easy installation and repair compared to traditional brick refractories. Their application involves pouring, gunning, or ramming the refractory material in place, which allows for quick repairs and maintenance. This rapid response to refractory failures or damages contributes to the plant's safety by minimizing downtime and preventing potential hazards associated with equipment malfunction. 5. Flexibility and adaptability: Monolithic refractories can be tailored to meet the specific needs and requirements of iron and steel plants. They can be customized in terms of composition, density, thermal conductivity, and other properties, allowing for optimal performance under varying operating conditions. This adaptability ensures that refractory linings are well-suited for the plant's processes, reducing the likelihood of accidents or incidents caused by inadequate refractory materials. In summary, monolithic refractories enhance the safety of iron and steel plants by providing thermal resistance, chemical resistance, structural stability, rapid repair capabilities, and flexibility. By utilizing these refractories, iron and steel plants can maintain a safe working environment, minimize the risk of accidents, and ensure the reliable operation of their equipment and systems.

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