What is galvanized corrugated sheet
Corrugated board is also called profiled plate. It adopts color coated steel plate, galvanized sheet and other metal sheets to be rolled and cold-bent into various corrugated profiled plates. It is suitable for industrial and civil buildings, warehouses, special buildings, large-span Roof, wall and interior and exterior wall decoration of steel structure houses. It has the characteristics of light weight, high strength, rich color, convenient and quick construction, anti-seismic, fireproof, rainproof, long life, maintenance-free, etc., and has been widely promoted and applied.
Corrugated board introduction
Corrugated boards were produced in the United States in the 1930s. In the early 1980s, Wuhan Iron and Steel and Baosteel first introduced color-coated steel plate production lines. Plants in various development zones, etc. With the rapid development of color-coated profiled steel application technology, the scope of application continues to expand and the amount of use continues to increase.
In the 21st century, my country's national economy has developed steadily at a high speed. Color-coated corrugated sheets have also entered large-scale public buildings from general industrial buildings, such as airport terminals, railway stations, stadiums, concert halls, and grand theaters. In 2008, Olympic venues. The roof, floor and wall of the building adopt a plate type with more reasonable force and connection, and the construction method is more scientific and the anti-corrosion performance is stronger. Aluminum-zinc plate, aluminum-magnesium-manganese alloy plate, titanium alloy plate, stainless steel, etc. The research and development has greatly improved the application technology level of the sub-type metal plate.
In terms of plate structure and standards, there have been second-generation profiled plate products such as undercut structure, snap-fit structure, and hidden connection of fasteners; The coating board (substrate) has increased the varieties of aluminum-coated board and galvanized aluminum board, and the coating board has added new products such as polyvinylidene fluoride (PVDF) coating board and high weather-resistant polyester coating board (HDP); Galvanized steel sheets and steel strips", "Color-coated steel sheets and steel strips", "Code for acceptance of construction quality of steel structure engineering" and so on have been repaired successively.
Corrugated board classification
Profiled steel plates are usually classified in a variety of ways depending on the application site, plate wave height, lap joint structure, and material. Common classification methods are as follows:
(1) Classified according to the application site - divided into roof panels, wall panels, floor decks and ceiling panels, etc. In use, colored steel plates are used as wall decoration panels at the same time, and the architectural decoration effect is relatively novel and unique.
(2) Classified by wave height - divided into high wave board (wave height ≥ 70mm), medium wave board (wave height < 70mm) and low wave board (wave height < 30mm)
(3) Classification by substrate material - divided into hot-dip galvanized substrate, hot-dip galvanized substrate and hot-dip galvanized aluminum substrate.
(4) Classified according to the structure of the plate seam - divided into lap joint, undercut and buckle structure. Among them, the undercut and crimped medium and high wave panels should be used as roof panels with high waterproof requirements; the lapped medium and high wave panels should be used as floor panels; the lapped low wave panels should be used as wall panels.
