Zirconia Slide Gate Nozzle for Steel Industry

Zirconia Slide Gate Nozzle for Steel Industry System 1

Zirconia Slide Gate Nozzle for 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:How do monolithic refractories improve the performance of iron and steel furnaces?: Monolithic refractories, unlike traditional brick-based refractories, offer several advantages that enhance the performance of iron and steel furnaces. Firstly, their seamless design eliminates joints and seams, reducing the risk of thermal shock and leakage, leading to improved insulation and energy efficiency. Additionally, monolithic refractories have higher thermal conductivity and superior resistance to chemical attacks, ensuring longer furnace life and reduced maintenance costs. Their ability to be easily shaped and installed also allows for better lining optimization, promoting better heat transfer and uniform temperature distribution within the furnace. Ultimately, monolithic refractories contribute to increased productivity, reduced downtime, and overall improved performance of iron and steel furnaces.

Q:What are the environmental considerations associated with monolithic refractories?: The environmental considerations associated with monolithic refractories primarily revolve around their production and disposal. The manufacturing process of monolithic refractories involves high energy consumption and emissions, contributing to carbon dioxide and other greenhouse gas emissions. Additionally, some raw materials used in their production, such as silica, can have negative environmental impacts during extraction. In terms of disposal, monolithic refractories are typically difficult to recycle due to their composition and structure. As a result, they often end up in landfills, which can contribute to pollution and waste management issues. Overall, the environmental considerations associated with monolithic refractories highlight the need for sustainable manufacturing practices, improved waste management strategies, and the development of alternative refractory materials that have less negative environmental impact.

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 enhance the performance of ladle and tundish covers?: Monolithic refractories play a crucial role in enhancing the performance of ladle and tundish covers in several ways. Firstly, monolithic refractories offer excellent thermal insulation properties. Ladles and tundishes are exposed to extremely high temperatures during the steelmaking process. By using monolithic refractories, the covers can effectively trap and retain heat, preventing excessive heat loss. This insulation capability not only helps to maintain the desired temperature of the molten steel but also reduces the energy consumption required for heating. Secondly, monolithic refractories provide superior 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 thermal shock can cause cracking and spalling of the lining, compromising its integrity. However, monolithic refractories possess high thermal shock resistance, allowing them to withstand these sudden temperature fluctuations without significant damage. This ensures the longevity and durability of the ladle and tundish covers. Furthermore, monolithic refractories exhibit excellent corrosion resistance. The molten steel and other aggressive chemicals present in the ladles and tundishes can erode the refractory lining over time. However, monolithic refractories are specifically designed to withstand these corrosive environments, protecting the covers from chemical attack and erosion. This resistance to corrosion enhances the lifespan of the ladle and tundish covers, reducing the need for frequent replacements and associated downtime. Additionally, monolithic refractories offer good mechanical strength and stability. The ladles and tundishes undergo various mechanical stresses, including the weight of the molten steel, thermal expansions, and vibrations. The use of monolithic refractories provides the necessary strength and stability to withstand these mechanical forces, preventing structural failures and maintaining the integrity of the covers. In summary, monolithic refractories enhance the performance of ladle and tundish covers by providing excellent thermal insulation, resistance to thermal shock and corrosion, and sufficient mechanical strength. These properties ensure efficient steelmaking processes, reduce maintenance costs, and prolong the lifespan of ladles and tundishes.

Q:How are monolithic refractories installed in iron and steel production processes?: Monolithic refractories are installed in iron and steel production processes by first preparing the surface, then applying the refractory material in a plastic or semi-plastic state. This can be done through various methods such as gunning, casting, ramming, or spraying. After the installation, the refractory material is allowed to cure and harden, forming a durable lining that can withstand high temperatures and harsh conditions in the production processes.

Q:What are the typical applications of monolithic refractories in the iron and steel industry?: Various applications within the iron and steel industry widely utilize monolithic refractories. These refractories, composed of a single material, offer numerous advantages including easy installation, thermal shock resistance, and excellent resistance to chemical attacks. Below are some typical applications of monolithic refractories in the iron and steel industry: 1. Blast Furnace: In blast furnaces, monolithic refractories line the interior and endure extreme temperatures and chemical reactions. They provide thermal insulation, prevent erosion, and resist the corrosive effects of molten iron and slag. 2. Ladles and Tundishes: Monolithic refractories line ladles and tundishes, vessels used for transporting and transferring molten metal. These refractories offer effective thermal insulation and resistance to erosion and chemical attacks, ensuring the integrity of the vessels. 3. Steelmaking Converters: Converters, essential in the steelmaking process to convert molten pig iron into steel, utilize monolithic refractories. These refractories provide protection against high temperatures and aggressive chemical environments encountered during the process. 4. Electric Arc Furnaces (EAF): Monolithic refractories line the walls and roofs of EAFs, used to recycle scrap steel by melting it. These refractories offer outstanding thermal insulation, resistance to slag erosion, and thermal shock resistance, ensuring the longevity and efficiency of the furnace. 5. Continuous Casting: Monolithic refractories find employment in the continuous casting process, where molten steel solidifies into a continuous slab or billet. These refractories line the walls and floors of the casting molds, providing thermal insulation and resistance to chemical attacks from the molten steel. 6. Reheating Furnaces: Monolithic refractories are used in reheating furnaces, which heat steel billets or ingots prior to further processing. These refractories provide insulation, high-temperature resistance, and ensure uniform heating of the metal. Overall, monolithic refractories play a crucial role in the iron and steel industry by providing reliable and durable linings in various applications. Their ability to withstand extreme temperatures, chemical attacks, and thermal shocks makes them indispensable for maintaining the integrity and efficiency of the production processes.

Q:How do monolithic refractories contribute to energy efficiency in iron and steel manufacturing?: The use of monolithic refractories is crucial for improving energy efficiency in iron and steel manufacturing processes. Made from a single material, typically a combination of high-quality aggregates, binders, and additives, these refractories are easily installed and repaired. One way in which monolithic refractories enhance energy efficiency is by minimizing heat loss. Their excellent insulation properties help maintain high temperatures in the furnace or kiln. This reduces the energy needed to maintain the desired temperature, resulting in lower energy consumption and cost savings. Additionally, monolithic refractories are designed with high thermal conductivity, allowing for efficient heat transfer from hot gases or flames to the iron and steel being processed. This leads to faster heating rates and shorter processing times, resulting in energy savings and increased production capacity. Another advantage of monolithic refractories is their ability to withstand extreme temperatures and harsh conditions. They are resistant to thermal shock, corrosion, and erosion, which extends their lifespan and reduces the need for frequent repairs or replacements. This minimizes downtime, enabling continuous operation and improved energy efficiency. Moreover, monolithic refractories offer design flexibility, allowing for the optimization of furnace and kiln geometries. By customizing the shape and dimensions of the refractory linings, heat distribution can be improved, ensuring more uniform heating and reducing energy wastage. This flexibility also enables the implementation of advanced combustion technologies, further enhancing energy efficiency. In conclusion, monolithic refractories contribute to energy efficiency in iron and steel manufacturing through the reduction of heat loss, enhancement of heat transfer, ability to withstand extreme conditions, optimization of furnace geometries, and facilitation of advanced combustion technologies. By utilizing these refractories, the industry can achieve significant energy savings, cost reductions, and environmental benefits.

Q:How are monolithic refractories installed and repaired in iron and steel applications?: Monolithic refractories are installed and repaired in iron and steel applications using specific procedures to ensure optimal performance and longevity. The installation process typically involves the following steps: 1. Surface preparation: The surface where the monolithic refractory will be installed needs to be properly cleaned and prepared. This includes removing any loose material, dirt, and dust. It is crucial to have a smooth and clean substrate to ensure good adherence of the refractory material. 2. Mixing the refractory material: Monolithic refractories are typically supplied as dry powders or granules that need to be mixed with water or a specific bonding agent to form a workable consistency. The mixing process should be done according to the manufacturer's instructions to achieve the desired properties of the refractory. 3. Application: The mixed refractory material is then applied to the prepared surface using various techniques such as troweling, spraying, or casting. The choice of application method depends on the specific requirements of the installation and the type of monolithic refractory being used. 4. Curing: After the refractory material is applied, it needs to be properly cured to achieve its maximum strength and durability. Curing can be done by air drying, using heat, or a combination of both, depending on the specific refractory material being used. The curing process should be carried out gradually and according to the manufacturer's recommendations. When it comes to repairs of monolithic refractories in iron and steel applications, the following steps are generally followed: 1. Assessment: The damaged area or component needs to be thoroughly assessed to determine the extent of the damage and the appropriate repair method. 2. Removal of damaged material: The damaged monolithic refractory material is carefully removed using appropriate tools and techniques. It is important to remove all the damaged material while ensuring that the underlying substrate is not further compromised. 3. Surface preparation: Similar to the installation process, the surface where the repair will be carried out needs to be properly cleaned and prepared. Any loose material, dirt, and dust should be removed to create a clean and smooth substrate. 4. Application of repair material: The repair material, which is typically the same or similar to the original monolithic refractory, is mixed and applied to the damaged area. The application method may vary depending on the nature of the repair and the specific requirements of the refractory material. 5. Curing and post-repair inspection: The repaired area should be properly cured and inspected to ensure the quality and effectiveness of the repair. Curing and inspection procedures should adhere to the manufacturer's guidelines. In summary, the installation and repair of monolithic refractories in iron and steel applications require careful surface preparation, proper mixing and application of the refractory material, and appropriate curing procedures. Following these steps in a meticulous manner ensures reliable and durable refractory linings, which are essential for the efficient operation of iron and steel processes.

Q:How are monolithic refractories different from traditional refractory materials?: There are several ways in which monolithic refractories differ from traditional refractory materials. Firstly, while traditional refractory materials are typically made from bricks, blocks, or tiles, monolithic refractories are made from a single continuous material. This means that they do not have any joints or seams, which can weaken traditional refractory structures. Secondly, installing monolithic refractories is much easier compared to traditional refractory materials. They can be easily shaped and applied on site, allowing for greater flexibility in design and construction. In contrast, traditional refractory materials require skilled labor and more time-consuming installation methods such as bricklaying. Additionally, monolithic refractories offer improved resistance to thermal shock. Because of their continuous structure, they can better withstand sudden changes in temperature without cracking or spalling. On the other hand, traditional refractory materials may be more susceptible to thermal shock damage. Another advantage of monolithic refractories is their ability to provide better insulation. They are often composed of lightweight aggregates or insulating fibers, which help to reduce heat loss and improve energy efficiency. Traditional refractory materials, while still capable of providing insulation, may not offer the same level of thermal efficiency. Lastly, monolithic refractories are more cost-effective. Their ease of installation, reduced labor requirements, and improved thermal performance contribute to lower overall project costs compared to traditional refractory materials. To sum up, monolithic refractories have a continuous structure, are easy to install, offer improved thermal shock resistance, provide better insulation properties, and are cost-effective. These characteristics make them the preferred choice in many industries that require high-temperature applications and thermal insulation.

Q:What are the key trends in the use of monolithic refractories in the iron and steel industry?: There are several key trends in the use of monolithic refractories in the iron and steel industry that are worth noting. Firstly, there is a growing demand for monolithic refractories due to their superior performance characteristics compared to traditional brick refractories. Monolithic refractories offer higher thermal shock resistance, better insulation properties, and improved resistance to chemical attacks. This has led to their increased usage in various applications within the iron and steel industry. Secondly, there is a shift towards the use of low-cement and ultra-low cement castables in monolithic refractories. These materials have a reduced cement content, resulting in improved refractory properties such as higher strength, better corrosion resistance, and increased resistance to thermal spalling. This trend is driven by the need to enhance the overall efficiency and durability of refractory linings in iron and steel manufacturing processes. Another important trend is the development of advanced monolithic refractories with enhanced sustainability and environmental performance. The iron and steel industry is under increasing pressure to reduce its carbon footprint and minimize environmental impact. As a result, there is a growing emphasis on the use of environmentally friendly binders and additives in monolithic refractories. These new materials not only offer excellent refractory properties but also contribute to the industry's sustainability goals. Furthermore, there is a rising focus on the development of monolithic refractories that can withstand extreme operating conditions. Iron and steel manufacturing processes involve high temperatures, aggressive chemical environments, and severe mechanical stresses. Therefore, there is a need for monolithic refractories that can endure these harsh conditions without compromising their performance. The industry is investing in research and development to create refractories that provide exceptional resistance to thermal shock, abrasion, and erosion. Lastly, there is an increasing adoption of digital and smart technologies in the monitoring and maintenance of monolithic refractories. With the advancements in sensor technology and data analytics, it is now possible to collect real-time data on the condition and performance of refractory linings. This allows for proactive maintenance, early detection of potential issues, and optimization of refractory usage, resulting in improved operational efficiency and cost savings. In conclusion, the key trends in the use of monolithic refractories in the iron and steel industry include the demand for superior performance, the shift towards low-cement and ultra-low cement castables, the development of sustainable materials, the focus on extreme operating conditions, and the adoption of digital and smart technologies for monitoring and maintenance. These trends reflect the industry's continuous efforts to enhance the efficiency, durability, and environmental sustainability of refractory linings in iron and steel manufacturing processes.

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