Why use aluminum alloy for building structure

by:Zeyi     2021-05-14
Aluminum is the most economical and reasonable building structure. The construction industry is one of the three major markets for industrial aluminum profile. About 20% of the world’s total aluminum output is used in the construction industry. Its aluminum consumption has accounted for more than 30% of its total output. In recent years, the aluminum products of the architectural aluminum industry have been continuously updated, and the application of novel building products such as colored aluminum panels, composite aluminum panels, composite door and window frames, and aluminum alloy templates has also increased year by year. China has applied aluminum alloys in industrial aluminum materials and civil buildings to make roofs, walls, doors and windows, etc., and gradually expanded the use of interior and exterior decoration, construction templates, etc., and has achieved good results.    Characteristics and uses The biggest feature of aluminum and aluminum alloys is that the bulk density is about 1/3 of that of steel, and the specific strength (the ratio of the strength limit to the specific gravity) can reach or exceed that of structural steel. Secondly, aluminum and aluminum alloys are easy to process into various shapes and can be adapted to various joining processes, thereby providing a favorable prerequisite for the most economical and fair cross-section of the building structure. Therefore, the use of aluminum alloy can not only greatly reduce the weight of the building and save industrial aluminum materials, but also reduce the transportation and installation workload of the components and speed up the construction progress. This has more obvious economic effects for earthquake areas and mountainous and remote areas with inconvenient transportation. Aluminum and aluminum alloys have beautiful brilliance, good corrosion resistance, high reflectivity to light and heat, good sound absorption performance, and various colors can be obtained through chemical and electrochemical methods. Therefore, industrial aluminum profile is widely used in roofing, walls, doors and windows, frameworks, interior and exterior decorative panels, ceilings, suspended ceilings, railings, indoor furniture, store containers, and construction templates in industrial and civil buildings.     production methods, aluminum alloys are divided into forged aluminum alloys and wrought aluminum industrial aluminum profile alloys according to their different production methods. Generally, deformed aluminum alloys are used in construction to be rolled into plates, foils, and strips, and extruded into rods, tubes or various complex shapes. Deformed aluminum alloys are classified into anti-rust aluminum alloys, duralumin, super-duralumin and special aluminum according to their functions and uses. industrial aluminum pure aluminum (L1~L1), anti-rust aluminum alloy (LF2, LF21, etc.) and wrought aluminum (LD2) are generally used in construction. The standard potential of      aluminum is -1.67 volts, its chemical properties are very active, and it is easy to react with oxygen in the air to form a firm and dense oxide film. Therefore, in ordinary atmosphere and clean water, aluminum has good corrosion resistance. However, electrochemical corrosion will occur when it comes into contact with steel or other metal industrial aluminum materials. When it comes in contact with alkaline materials such as concrete, cement mortar, and lime in a humid environment, it will corrode, and it will also corrode when it comes in contact with wood, soil, etc. . Therefore, proper anti-corrosion treatment is required.    Functional pure aluminum has low strength, and its use is limited. But by adding a small amount of one or several alloying elements, such as magnesium, silicon, manganese, copper, zinc, iron, chromium, titanium, etc., aluminum alloys with different functions can be obtained. The aluminum alloy is further strengthened and hardened by cold working and heat treatment, and its tensile strength is greatly improved.     is a building product made of aluminum alloy industrial aluminum material. Usually processed into forged products, cast products, foils, plates, strips, tubes, rods, profiles, etc., and then cold-bent, sawing, drilling, assembling, coloring and other processes. ————The article comes from the Internet. If there is any infringement, please contact to delete it.
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