Corrugated Steel Plate Bridge

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Introduction:

At the heart of transportation networks, bridges hold immense significance in ensuring smooth movement of goods and commuters. Since ancient times, bridges have been constructed using a variety of materials, from wood to stone and metals like iron and steel. Steel, in particular, has come to be viewed as a reliable and versatile material for building high-quality bridges, and corrugated steel plate bridges are gaining immense popularity in the modern-day world. With superior strength, durability, and easy installation, corrugated steel plate bridges offer an eco-friendly and cost-effective solution to bridge building, and are an excellent choice for merchants looking to upgrade or build new bridges.

Features:

Corrugated steel plate bridges are made with corrugated steel plates bolted together, resulting in a modular design that can be quickly and easily assembled on site. The plates are typically coated with a galvanized finish, providing a layer of protection from harsh weather elements and rust. The bridge is designed to handle high loads and can be constructed to span a range of distances, making it suitable for both short and long spans.

One of the significant advantages of corrugated steel plate bridges is their lightweight nature, which allows for easy handling and transportation. During installation, heavy equipment is not required, and the plates can be quickly and efficiently bolted together using basic tools.

Another key feature of corrugated steel plate bridges is their durability. Due to the steel's inherent strength, the bridges can withstand significant loads and last for several decades with minimal maintenance. The galvanized coatings also ensure that the bridges remain rust-free and looking new even after years of use.

Benefits:

For merchants looking to purchase bridges, corrugated steel plate bridges offer several benefits that make them an attractive choice. Firstly, the ease of installation means that merchants can save time and money during the construction process. They do not have to worry about hiring specialized equipment and workers to install the bridge, making it a cost-effective option.

Secondly, the lightweight design of the bridge could benefit merchants who are looking to transport the bridge over long distances or difficult terrain. This feature could be particularly relevant for merchants who need to build bridges in remote or hard-to-reach locations. Furthermore, since the plates can be assembled on-site, merchants do not have to worry about transport restrictions such as weight or height limits.

Thirdly, the superior strength and durability of the bridge mean that it can be relied upon to handle heavy loads for extended periods, reducing the risk of damage or failure. This longevity means that merchants can expect a more extended useful life from their investment, resulting in a higher return on investment.

Conclusion:

In conclusion, corrugated steel plate bridges offer numerous benefits to merchants looking to upgrade or build new bridges. With easy installation, superior strength and durability, and an eco-friendly design, the bridge is an excellent choice for those seeking to reduce costs and increase efficiency. As a Chinese manufacturer, we are committed to delivering top-quality bridges at an affordable price. We use only the highest quality materials, and our skilled team of professionals ensures that our products meet, and often exceed, international standards. With our support, merchants can be confident in finding the best solution to their bridge-building needs.

Technological process and smelting points of corrugated steel plate bridge

The quality of corrugated steel plate bridge requires high strength performance, low temperature impact performance of minus 20 ℃ and aging impact performance, which are widely used in bridge construction. The process flow of corrugated steel plate bridge is the same as that of hot metal, oxygen converter smelting, ladle bottom argon blowing, LF furnace refining, slab continuous casting, slab cutting, cleaning, heating, double stand medium and heavy plate rolling, water curtain controlled cooling, straightening, finishing, inspection and warehousing.

The key points of corrugated steel plate bridge smelting and continuous casting process adopt secondary slagging smelting process, double slag method or re slagging after furnace pouring. The alkalinity of final slag is controlled according to 3.5-4.0, and the tapping P is less than or equal to 0.010%; Strictly control the amount of slag in the ladle and adopt the tapping process system of double slag retaining; Steel cored aluminum deoxidation is used, and the addition amount per ton of steel is 2.5kg/t; LF refining process is adopted, the addition amount of molten steel slag adjusting agent is 3.5kg/t, and the control s is less than or equal to 0.010%; Bottom argon blowing shall be more than or less than 12min, including soft argon blowing shall be no less than 8min, so as to reduce inclusions in steel as much as possible; The whole process protective casting and continuous casting are adopted, and the tundish adopts retaining wall coating to reduce the inclusions in steel. Pay attention to controlling the continuous casting temperature, casting speed and cooling water volume, maintaining the stability of casting speed and improving the surface and internal quality of slab.

Key points of steel rolling process: the soaking section temperature is 1150-1250 ℃, the start rolling temperature is 1050-1100 ℃, the heating time is not less than 3.5 hours, corrugated steel plate bridge with thickness greater than 20mm adopts cross rolling, and the final rolling temperature is controlled at 840-860 ℃ when the temperature is not less than twice the thickness of the finished product and the thickness is not greater than 20mm. On the premise of ensuring the shape and the same plate difference, the reduction rate of the last 3 passes of rolling shall not be less than 15%; When the billet is put into the furnace, the billet surface shall be inspected, and the billet with surface defects shall not be put into the furnace.

When an appropriate amount of aluminum is added to the corrugated steel plate bridge, it is easy to form transverse cracks on the surface of slab and finished products. Attention must be paid to the matching process of continuous casting speed, cooling water volume and straightening temperature. As the corrugated steel plate bridge is refined by LF and added with Al, Nb process will increase the production cost, improve the rolling yield and sizing rate of corrugated steel plate bridge, reduce the unplanned rate and reduce the production cost. The yield strength, tensile strength, elongation, cold bending, 20 ℃ impact and other performance indexes of corrugated steel plate bridge basically meet the standard requirements.

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