• Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability System 1
  • Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability System 2
  • Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability System 3
  • Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability System 4
  • Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability System 5
Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability

Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
10000 m.t./month

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Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability

1.Structure of Hot-Dip Galvanized Steel Sheet Description

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet

• Excellent process capability

• Smooth and flat surface

• Workability, durability 

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

 

Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability

Hot-dip Zinc Coating Steel Building Roof Walls--Excellent Process Capability

 

 

4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.18mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

 

 5.FAQ of Hot-Dip Galvanized Steel Sheet 

1.How 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.

 

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.

 

 

Q:What are monolithic refractories?
Monolithic refractories are a type of refractory material that is manufactured as a single, homogeneous unit, as opposed to being made from individual bricks or precast shapes. They are characterized by their ability to be shaped and installed in various applications without the need for joints or mortar, making them a versatile and convenient choice for lining furnaces, boilers, kilns, and other high-temperature industrial equipment. These refractories are typically composed of a mixture of refractory aggregates, binders, and additives, which are carefully selected and combined to provide the desired properties such as high temperature resistance, thermal shock resistance, and chemical durability. The aggregates used can include materials like alumina, magnesia, zirconia, and silica, while binders like clay, cement, or phosphate are added to hold the aggregates together. One of the advantages of monolithic refractories is their ability to adapt to complex shapes and designs, allowing for customized linings that can be tailored to specific equipment requirements. They are often applied by pouring, gunning, ramming, or spraying the refractory material onto the surface to be lined, allowing for quick and efficient installation. This eliminates the need for time-consuming bricklaying and jointing, reducing installation time and labor costs. Monolithic refractories are also known for their superior thermal conductivity, which enables them to withstand high temperatures and sudden temperature changes. They offer excellent insulation properties, preventing heat loss and improving energy efficiency in industrial processes. Furthermore, these refractories exhibit good resistance to chemical attack from molten metals, slags, gases, and other corrosive substances found in various industrial environments. This makes them highly suitable for applications in industries such as steel, cement, glass, petrochemical, and non-ferrous metals. In summary, monolithic refractories are a versatile and efficient solution for high-temperature applications. Their ability to be shaped and installed without joints or mortar, coupled with their excellent thermal conductivity and chemical resistance, make them a valuable choice for lining industrial equipment that operates under extreme conditions.
Q:What are the advantages of using insulating castables in the iron and steel industry?
There are several advantages of using insulating castables in the iron and steel industry. Firstly, insulating castables provide excellent thermal insulation. They have low thermal conductivity, which helps to minimize heat loss from the furnaces and other equipment. This is particularly important in the iron and steel industry, where high temperatures are required for various processes. The insulation provided by castables helps to maintain a stable temperature within the furnace, resulting in improved energy efficiency and reduced fuel consumption. Secondly, insulating castables have high strength and excellent resistance to thermal shock. This is crucial in the iron and steel industry, where extreme temperature changes are common. The castables can withstand rapid heating and cooling cycles without cracking or compromising their structural integrity. This ensures the longevity and durability of the refractory lining, reducing the need for frequent maintenance and repairs. Furthermore, insulating castables are lightweight and easy to install. Their low density makes them easier to handle and transport, resulting in reduced labor costs and shorter installation times. This is particularly advantageous in large-scale iron and steel plants, where time and cost efficiency are critical. Moreover, insulating castables offer good corrosion resistance. The harsh environment in the iron and steel industry, with the presence of molten metal, slag, and various chemicals, can cause corrosion and erosion of refractory materials. Insulating castables are designed to withstand these corrosive conditions, ensuring the longevity of the lining and minimizing the risk of downtime and production disruptions. Lastly, insulating castables are versatile and can be customized to meet specific requirements. They are available in various compositions and densities, allowing for tailored solutions to different applications within the iron and steel industry. This versatility ensures optimal performance and efficiency in various furnace and equipment designs. In conclusion, the advantages of using insulating castables in the iron and steel industry include excellent thermal insulation, high strength, resistance to thermal shock, lightweight installation, corrosion resistance, and versatility. These benefits contribute to improved energy efficiency, reduced maintenance costs, increased durability, and enhanced overall productivity in the industry.
Q:How do monolithic refractories enhance the performance of ladle and tundish purging systems?
Monolithic refractories play a crucial role in enhancing the performance of ladle and tundish purging systems in several ways. Firstly, monolithic refractories offer excellent thermal insulation properties. Ladle and tundish purging systems require high temperatures to effectively remove impurities and gases from molten metal. The use of monolithic refractories helps to minimize heat loss and maintain the desired temperature within the system. This ensures that the purging process is carried out efficiently and effectively. Secondly, monolithic refractories provide superior erosion and corrosion resistance. During the purging process, the molten metal and purging gases can be highly corrosive and abrasive. Monolithic refractories are designed to withstand such harsh conditions, preventing erosion and corrosion of the lining. This prolongs the lifespan of the ladle and tundish purging systems, reducing the need for frequent repairs or replacements. Furthermore, monolithic refractories offer excellent strength and stability. Ladle and tundish purging systems experience significant mechanical stresses due to the movement of molten metal and purging gases. The use of monolithic refractories ensures the structural integrity of the lining, preventing any deformation or failure under these conditions. This allows for smooth and uninterrupted purging operations, improving the overall performance of the system. In addition, monolithic refractories provide ease of installation and maintenance. Unlike traditional brick and mortar refractories, monolithic refractories can be easily applied as a single, homogeneous layer. This simplifies the installation process and reduces the time and effort required for maintenance. Any necessary repairs or replacements can be carried out more efficiently, minimizing downtime and maximizing the productivity of the ladle and tundish purging systems. Overall, monolithic refractories enhance the performance of ladle and tundish purging systems by providing excellent thermal insulation, erosion and corrosion resistance, strength and stability, as well as ease of installation and maintenance. These properties contribute to the efficient and effective removal of impurities and gases from molten metal, ensuring high-quality output and optimizing the overall productivity of the purging process.
Q:What are the common applications of monolithic refractories in blast furnaces?
Monolithic refractories, also referred to as unshaped refractories, find extensive use in blast furnaces due to their advantageous properties and versatile applications. Blast furnaces benefit from the following common applications of monolithic refractories: 1. Furnace lining: The walls, hearth, and roof of blast furnaces are lined with monolithic refractories. These refractories possess high thermal resistance and excellent insulating properties, safeguarding the furnace structure against extreme temperatures and thermal shocks. 2. Repair of tuyeres and tapholes: Tuyeres are nozzles that introduce air or fuel into the furnace, while tapholes are openings used for tapping molten iron or slag. Monolithic refractories are employed to repair and maintain these crucial components, as they can endure the high temperatures and chemical reactions taking place in these regions. 3. Hot repair and maintenance: The demanding operating conditions of blast furnaces necessitate frequent repairs and maintenance. Monolithic refractories are utilized for hot repair and maintenance purposes, as they can be easily applied in a plastic or semi-plastic state to fill cracks, mend damaged areas, or replace worn-out linings. 4. Resistance to erosion and corrosion: Blast furnace environments are highly corrosive due to the presence of molten iron, slag, and other molten materials. Monolithic refractories with exceptional erosion and corrosion resistance protect the furnace lining against chemical attacks, extending its lifespan. 5. Gunning mixes: Gunning mixes are extensively employed in blast furnaces for their ability to be sprayed or gunned onto the refractory lining. These mixes comprise fine refractory aggregates, bonding agents, and additives. They are applied to repair worn-out areas, seal cracks, and provide a protective layer against erosion and slag penetration. 6. Repair of slag line and iron runners: The slag line and iron runners in blast furnaces are prone to erosion and wear due to the corrosive nature of molten slag and iron. Monolithic refractories are utilized to repair and reconstruct these areas, ensuring smooth and efficient furnace operation. To summarize, monolithic refractories play a vital role in blast furnaces, fulfilling numerous functions such as furnace lining, tuyere and taphole repair, hot repair and maintenance, erosion and corrosion resistance, gunning mixes, and repair of slag line and iron runners. Their ability to withstand high temperatures, chemical attacks, and mechanical stresses renders them indispensable in maintaining the integrity and efficiency of blast furnace operations.
Q:How do monolithic refractories prevent heat loss through radiation?
Monolithic refractories prevent heat loss through radiation by their high thermal conductivity and low thermal expansion. These properties allow them to efficiently transfer heat from the hot side of the refractory to the cooler side, minimizing the temperature difference and reducing heat loss through radiation. Additionally, monolithic refractories provide a continuous and seamless lining, eliminating gaps and cracks that could allow heat to escape. The dense and compact structure of monolithic refractories also acts as a barrier to prevent radiation heat transfer. Overall, monolithic refractories play a crucial role in maintaining thermal insulation and preventing heat loss through radiation in various high-temperature applications.
Q:What are the main types of monolithic refractories used in the iron and steel industry?
The main types of monolithic refractories used in the iron and steel industry are castables, plastic refractories, and ramming mixes.
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: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:How do monolithic refractories contribute to the overall productivity of iron and steel production?
Monolithic refractories play a critical role in enhancing the overall productivity of iron and steel production. These refractories are essential components used in the lining of high-temperature furnaces and other equipment used in these industries. One way monolithic refractories contribute to productivity is by providing excellent thermal insulation. With their high thermal conductivity, they help to reduce heat loss from the furnaces, thereby minimizing energy consumption and improving overall efficiency. This insulation property allows for higher operating temperatures, leading to faster and more efficient production processes. Additionally, monolithic refractories offer superior resistance to thermal shock and chemical corrosion. In the iron and steel production process, various harsh conditions are encountered, such as rapid temperature changes and exposure to molten metal and slag. Monolithic refractories are designed to withstand these extreme environments, ensuring longer service life and reduced downtime for maintenance and repairs. This directly translates to increased productivity and reduced production costs. Moreover, monolithic refractories provide better dimensional stability compared to traditional brick refractories. Their ability to conform to complex shapes and structures allows for improved lining design, facilitating better heat transfer and distribution. This uniformity in heat distribution contributes to enhanced process control and greater consistency in product quality. Furthermore, the installation and repair of monolithic refractories are relatively easier and faster compared to traditional brick refractories. This ease of installation and repair reduces downtime during maintenance, allowing for more continuous production. The shorter downtime leads to increased productivity and higher output. In summary, monolithic refractories contribute to the overall productivity of iron and steel production by providing excellent thermal insulation, resistance to thermal shock and chemical corrosion, better dimensional stability, and ease of installation and repair. These properties result in improved energy efficiency, reduced downtime, enhanced process control, and higher product quality, ultimately leading to increased productivity and profitability for the industry.
Q:How do monolithic refractories help in enhancing the durability of iron and steel furnaces?
Monolithic refractories help enhance the durability of iron and steel furnaces by providing a high heat resistance and superior thermal insulation. They have the ability to withstand extreme temperatures, reducing the risk of thermal shock and cracking. Monolithic refractories also have excellent corrosion resistance, preventing chemical reactions with molten metal and slag. Their strong bonding properties ensure a tight seal, minimizing heat loss and improving energy efficiency. Overall, monolithic refractories contribute to the longevity and reliability of iron and steel furnaces by protecting them from the harsh conditions of high-temperature operations.

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