Aluminum alloy 6061 is more economical for building structures. Construction industry is one of the three major markets for industrial aluminum aluminum products. About 20% of the world’s aluminum output is used in construction industry, and some industrial aluminum materials. In the construction industry in developed countries, the amount of aluminum used has accounted for more than 30% of its total output. In recent years, the aluminum products of architectural aluminum industry have been continuously updated, and the application of novel architectural 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 already applied aluminum alloys in the production of aluminum and industrial buildings in the industrial aluminum industry to make roofing, wall surfaces, doors and windows, and gradually expanded interior and exterior decoration and construction templates. Good results have been achieved.
Characteristics and Uses The major characteristics of aluminum and aluminum alloys are that the bulk density is approximately 1/3 of the steel, and the specific strength (ratio of the strength limit to the specific gravity) can reach or exceed the structural steel. Second, aluminum and aluminum alloys can be easily processed into various shapes and can be adapted to various joining processes, thereby providing favorable conditions for the use of more economical and fair sections for building structures. Therefore, the use of aluminum alloy can not only greatly reduce the weight of the building, save aluminum materials, but also reduce the transportation and installation workload of components and speed up the construction progress. This has a more significant economic effect on earthquake areas and inaccessible mountainous areas and remote areas. Aluminum and aluminum alloys are beautiful in appearance, good in erosion resistance, high in reflectivity to light and heat, and good in sound absorption. Various colors can be obtained through chemical and electrochemical methods. Therefore, industrial aluminum industry aluminum is widely used in industrial and civil construction roofs, walls, doors and windows, skeletons, interior and exterior decorative panels, ceilings, ceilings, railings, handrails, interior furniture, shop containers and construction templates.
Production methods, aluminum alloy according to their production methods are different, divided into two categories of forged aluminum alloy and deformed aluminum industrial aluminum alloy. Deformed aluminum alloys are generally used in construction to roll plates, foils, strips, extruded rods, tubes, or various complex shapes. Deformed aluminum alloys are classified into rust-proof aluminum alloys, hard aluminum, ultra-hard aluminum and special aluminum according to their functions and applications. Industrial aluminum industrial aluminum aluminum (L1 ~ L1), rust-proof aluminum alloy (LF2, LF21, etc.) and wrought aluminum (LD2) are commonly used in construction.
The aluminum has a scale potential of -1.67 volts. The chemical is very active and easily reacts with oxygen in the air to form a dense and dense oxide film. Therefore, aluminum has good corrosion resistance in ordinary atmosphere and clean water. However, when it comes in contact with steel or other metal industrial aluminum materials, it will cause galvanic corrosion. When in contact with alkaline materials such as concrete, cement mortar, and lime in a humid environment, it will erode, and when it comes in contact with wood, mud, etc., it will also erode. . Therefore, it is necessary to carry out appropriate anti-corrosion treatment.
The performance of pure aluminum is low and its use is limited. However, by adding a small amount of one or more alloying elements such as magnesium, silicon, manganese, copper, zinc, iron, chromium, titanium, etc., aluminum alloys having different functions can be obtained. The aluminum alloy is further cold-worked and heat-treated, further strengthened and hardened, and its tensile strength is greatly improved.
Construction products made of aluminum alloy industrial aluminum materials. It is usually processed into forged products, cast products, and foils, plates, strips, tubes, rods, profiles, etc., and then processed by processes such as cold bending, sawing, drilling, assembly, and coloring.
