[China Aluminum Network] Building products made of aluminum and aluminum alloy materials. It is usually processed into cast products, forged products, and foils, plates, strips, tubes, rods, profiles, etc., and then made by processes such as cold bending, sawing, drilling, assembly, and coloring. Titanium Pocket Knife,Titanium Carbide Pocket Knife,Titanium Handle Knife,Titanium Knife YangJiang Junxiong Trading & Industry Company Co.,Ltd , https://www.cn-sundo.com
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 properties can be obtained. The aluminum alloy is further cold-worked and heat-treated, further strengthened and hardened, and its tensile strength is greatly improved.
The standard potential of aluminum is -1.67 volts. The chemical properties are very lively. It easily reacts with oxygen in the air to form a firm and dense oxide film. Therefore, it has good corrosion resistance in ordinary atmosphere and clean water. However, when it comes into contact with steel or other metallic materials, it will produce galvanic corrosion. When it is in contact with alkaline materials such as concrete, cement mortar, and lime in a humid environment, corrosion will occur, and corrosion will occur when it comes in contact with wood, soil, and the like. Therefore, it is necessary to carry out appropriate anti-corrosion treatment.
Production methods Aluminum alloys are divided into two categories, namely cast aluminum alloys and deformed aluminum alloys, depending on their production methods. 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 properties and uses. In the construction, industrial pure aluminum (L1-L1), rust-proof aluminum alloy (LF2, LF21, etc.) and wrought aluminum (LD2) are generally used.
Features and Uses The major characteristics of aluminum and aluminum alloys are that their bulk density is approximately 1/3 of that of steel, while specific strength (ratio of strength limit to specific gravity) can reach or exceed that of structural steel. Secondly, 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 construction structure to use more economical and reasonable sections. Therefore, the use of aluminum alloy can not only greatly reduce the weight of buildings and save 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 seismic areas and inaccessible mountainous areas and remote areas. Aluminum and aluminum alloys are beautiful in color, good in corrosion resistance, high in reflectivity to light and heat, and good in sound absorption performance. Various colors can be obtained through chemical and electrochemical methods. Therefore, 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.
The construction industry is one of the three major markets for aluminum products. About 20% of the total aluminum output in the world is used in the construction industry. The construction industry in some industrialized countries has accounted for more than 30% of its total aluminum output. In recent years, the products of architectural aluminum 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 applied aluminum alloys in industrial and civil buildings to make roofs, walls, doors and windows, and gradually expanded interior and exterior decoration and construction templates. Good results have been achieved.