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

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

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

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

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

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 considerations for selecting monolithic refractories for ladles and tundishes?: When it comes to choosing monolithic refractories for ladles and tundishes, there are a number of important factors to bear in mind. Firstly, it is crucial to select monolithic refractories that can withstand and maintain their strength and integrity at the extremely high temperatures experienced during metal casting processes. In addition, monolithic refractories with good thermal shock resistance are essential, as ladles and tundishes are subjected to rapid temperature changes during pouring and cooling. Such refractories can prevent cracking and spalling, ensuring the longevity and performance of these components. Erosion and corrosion resistance is another key consideration. Refractory linings can be eroded and chemically attacked by molten metal, slag, and other corrosive substances. Opting for monolithic refractories with excellent erosion and corrosion resistance can extend the service life of ladles and tundishes, reducing the need for maintenance and minimizing downtime. Mechanical strength is also important, as ladles and tundishes are frequently handled, transported, and subjected to mechanical stresses. Monolithic refractories with adequate mechanical strength can withstand these forces without cracking or breaking, thereby maintaining the structural integrity of these components. The method of applying monolithic refractories is another factor to think about. Depending on the size and shape of the ladles and tundishes, as well as the available equipment and expertise, different application methods such as gunning, casting, ramming, or spraying may be used. It is important to ensure that the selected monolithic refractories are compatible with the chosen application method. The thermal conductivity of monolithic refractories can impact heat transfer in ladles and tundishes. Opting for refractories with low thermal conductivity can help minimize heat loss and improve energy efficiency. While performance and durability are crucial, it is also important to consider the cost-effectiveness of the chosen monolithic refractories. This includes factors such as the initial cost of the refractories, installation and maintenance costs, and the expected service life. Striking a balance between performance and cost can help optimize the overall investment in ladles and tundishes. Overall, the selection of monolithic refractories for ladles and tundishes involves a combination of factors, including temperature resistance, thermal shock resistance, erosion and corrosion resistance, mechanical strength, application method compatibility, thermal conductivity, and cost-effectiveness. By carefully evaluating these factors, it is possible to choose the most suitable monolithic refractories that meet the specific requirements of ladles and tundishes in metal casting processes.

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:What are the environmental considerations associated with monolithic refractories?: Monolithic refractories, utilized in various high-temperature applications, pose several environmental concerns that must be taken into account. Firstly, the production of monolithic refractories necessitates the utilization of raw materials such as clay, silica, and alumina, which are frequently extracted from the earth, resulting in habitat destruction, soil erosion, and water pollution. Furthermore, the manufacturing process of monolithic refractories commonly involves considerable energy consumption and the emission of greenhouse gases. The firing of refractory materials necessitates high temperatures, often achieved through the combustion of fossil fuels, contributing to carbon dioxide emissions and climate change. These emissions have broad environmental consequences, including air pollution, acid rain, and ozone layer depletion. Additionally, the disposal of monolithic refractories at the end of their useful life can present environmental challenges. Although monolithic refractories are highly durable and long-lasting, there may come a time when replacement or repair is necessary. The disposal of refractory waste can be problematic as it often contains hazardous substances such as chromium, lead, and asbestos. Inadequate disposal methods can lead to contamination of soil and water, posing risks to both human health and the environment. To address these environmental concerns, efforts are underway to develop more sustainable refractory materials and manufacturing processes. For instance, alternative raw materials like recycled refractory materials or industrial by-products can be employed to decrease the environmental impact of mining. Moreover, the adoption of more energy-efficient manufacturing techniques, such as utilizing renewable energy sources or implementing advanced firing technologies, can help minimize greenhouse gas emissions. In conclusion, the environmental considerations associated with monolithic refractories encompass habitat destruction, energy consumption, greenhouse gas emissions, and waste disposal. Prioritizing sustainability and implementing measures to mitigate these environmental impacts, such as using alternative raw materials, enhancing manufacturing processes, and endorsing responsible waste management practices, are imperative for the refractory industry.

Q:How do monolithic refractories contribute to the overall efficiency of ladle slagging operations?: Monolithic refractories play a vital role in enhancing the overall efficiency of ladle slagging operations, which involve removing impurities from molten metal in a ladle before pouring it into molds or further processing. One of the primary benefits of monolithic refractories is their capacity to withstand high temperatures, a crucial factor in ladle slagging operations. The refractory lining in the ladle must endure the intense heat generated by the molten metal and slag, as well as the chemical reactions occurring during the process. By possessing high thermal stability, monolithic refractories prevent the lining from cracking or deteriorating, thus ensuring the integrity of the ladle and maintaining its efficiency. Furthermore, monolithic refractories offer excellent resistance against chemical erosion and corrosion. In the ladle slagging process, the molten metal and slag may contain impurities and aggressive chemicals such as sulfur, phosphorus, and other oxides. These substances can attack and degrade the lining of the ladle, compromising its efficiency. However, monolithic refractories are specifically designed to withstand these chemical attacks, thereby prolonging the lifespan of the ladle and reducing the need for frequent repairs or replacements. Moreover, monolithic refractories possess exceptional thermal insulation properties. Precise temperature control is essential in ladle slagging operations to facilitate desired chemical reactions and efficient impurity removal. The thermal insulation provided by monolithic refractories helps maintain a consistent temperature within the ladle, preventing heat loss and facilitating optimal slagging conditions. Additionally, this insulation minimizes energy consumption and improves the overall energy efficiency of the ladle slagging process. In conclusion, monolithic refractories make significant contributions to the overall efficiency of ladle slagging operations. Their ability to endure high temperatures, resist chemical erosion, and provide thermal insulation ensures the integrity and longevity of the ladle. By reducing the need for frequent repairs and enabling precise temperature control, monolithic refractories optimize the slagging process, leading to enhanced productivity and cost-effectiveness.

Q:What are the considerations for repairing and patching monolithic refractories?: When it comes to repairing and patching monolithic refractories, there are several important considerations that need to be taken into account. Firstly, it is crucial to carefully assess the extent and severity of the damage or deterioration. This will help determine the appropriate repair method and materials needed. Small cracks or minor damage may only require a simple patching or sealing, while larger or more severe damage might necessitate a complete replacement or a more extensive repair process. Secondly, the type of monolithic refractory material being used is an important factor to consider. Different types of monolithic refractories have varying properties and characteristics, such as thermal conductivity, chemical resistance, and mechanical strength. Therefore, it is crucial to choose a repair material that is compatible with the existing refractory material to ensure proper bonding and performance. Another consideration is the operating conditions and environment in which the monolithic refractory is exposed. Factors such as temperature, pressure, chemical exposure, and abrasion can significantly impact the durability and longevity of the refractory material. Understanding these conditions will help in selecting the appropriate repair materials and techniques that can withstand and perform well under these specific conditions. Additionally, the repair process should be carried out by experienced personnel who are knowledgeable about refractory materials and their installation. Improper repairs can lead to further damage or reduced performance, so it is essential to have skilled professionals who can perform the repair work correctly. Lastly, regular inspection and maintenance of the monolithic refractories are essential to detect any potential damage or deterioration early on. Timely repairs and patching can prevent further deterioration and extend the service life of the refractory material. In summary, considerations for repairing and patching monolithic refractories involve assessing the extent of damage, selecting compatible repair materials, understanding the operating conditions, employing skilled personnel, and conducting regular inspections and maintenance. By taking these factors into account, one can ensure effective repairs and the continued performance of monolithic refractories.

Q:How do monolithic refractories perform in reheating furnace applications?: Due to their exceptional thermal stability, strength, and resistance to thermal shock, monolithic refractories are highly effective in reheating furnace applications. These refractories are specifically designed to withstand the harsh operating conditions commonly found in reheating furnaces, including high temperatures and rapid temperature changes. One major advantage of using monolithic refractories in reheating furnace applications is their ability to provide a seamless lining. Unlike traditional brick refractories that require extensive installation and joints, monolithic refractories can be easily applied as a single, homogeneous layer. This eliminates the risk of thermal stress and cracking at joints, ensuring a more reliable and durable lining. Furthermore, monolithic refractories offer excellent thermal insulation properties, which help conserve energy and reduce heat loss in the reheating furnace. This not only improves overall furnace efficiency but also reduces operational costs. In addition to their insulation properties, monolithic refractories exhibit high mechanical strength, allowing them to withstand the mechanical stress and abrasion caused by the movement of the furnace charge. They also have good resistance to chemical attack from gases, slags, and molten metals commonly encountered in reheating furnace operations. Another advantage of monolithic refractories is their ease of repair and patching, minimizing downtime and ensuring continuous furnace operation. They can be easily shaped and molded to fit various furnace geometries, making them highly versatile and adaptable to different reheating furnace designs. In summary, monolithic refractories offer exceptional performance in reheating furnace applications by providing superior thermal stability, strength, and resistance to thermal shock. Their seamless lining, thermal insulation properties, and resistance to mechanical and chemical stress make them an ideal choice for ensuring reliable and efficient furnace operation.

Q:What are the main causes of monolithic refractory failure in the iron and steel industry?: The main causes of monolithic refractory failure in the iron and steel industry include thermal cycling, chemical attack, mechanical wear, and improper installation or curing.

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 withstand the alkali attacks in cement kiln applications?: Monolithic refractories withstand alkali attacks in cement kiln applications due to their unique composition and properties. These refractories are made of high-quality materials such as silica, alumina, and magnesia, which have excellent resistance to alkali reactions. Additionally, they are designed to have dense and compact structures, limiting the penetration of alkali compounds into the refractory material. The dense structure also helps in reducing the permeability of the refractory, preventing alkali infiltration. Moreover, monolithic refractories often have a high melting point, which further enhances their resistance against alkali attacks. Overall, the combination of material composition, compact structure, and high melting point enables monolithic refractories to withstand the harsh alkali environment of cement kilns.

Q:How do monolithic refractories enhance the performance of ladle and tundish preheating systems?: Monolithic refractories enhance the performance of ladle and tundish preheating systems by providing excellent thermal insulation, high mechanical strength, and resistance to corrosion and erosion. This allows for efficient heat retention and distribution, ensuring uniform and consistent preheating of ladles and tundishes. Additionally, monolithic refractories minimize heat losses, reduce energy consumption, and increase the lifespan of the preheating systems, contributing to improved overall performance.

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