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aluminium material for building

2016-06-03 click:16481

Construction products made of aluminum and aluminum alloy materials, usually processed into casting, forging and foil, plate, strip, pipe, rod, profile, and so on, and then by cold bending, sawing, drilling, assembly, painting and other processes.

Properties of pure aluminum strength low, their use is limited. But the addition of a small amount of a kind or several kinds of the alloy elements, such as magnesium, silicon, manganese, copper, zinc, iron, chromium, titanium, etc., can be obtained with different properties of aluminum alloy. Aluminum alloy and the cold working and heat treatment, further strengthening and hardening, the tensile strength is greatly improved.

Standard potential of the aluminum is -1.67 volts, chemical property is active, the role of oxygen and air formed oxide films with a solid layer of dense, so in the ordinary air and clean water, aluminum has a good corrosion resistance. But with the contact of steel or other metal materials will produce electrochemical corrosion, contact in a humid environment and concrete, cement mortar, lime and other basic materials will produce corrosion, contact with the wood, soil will produce corrosion. Therefore, the need for appropriate anti-corrosion treatment.

Method for producing aluminum alloy according to the production method, divided into casting aluminum alloy and wrought aluminum alloy. Building on the deformation of aluminum alloy, with rolling into plate, foil, strip, squeeze into a rod, tube or a variety of complex shape of the profiles. According to their performance, for different purposes, for antirust aluminium alloy, duralumin, super hard aluminum and special aluminum. Commonly used construction, industrial pure aluminum (L1) to (L1), antirust aluminum alloy LF2, LF21 and Forging Aluminum (LD2) deformation of aluminum alloy.

The biggest characteristics and use of aluminum and Aluminum Alloy, the first is the bulk density is about 1/3 of the steel, rather than the intensity (the ratio of ultimate strength and gravity) can reach or exceed the structural steel. Secondly, aluminum and Aluminum Alloy can be easily processed into various shapes, can adapt to all kinds of connection technology, which provides favorable conditions for building the section of the form of the most economical and reasonable structure. Therefore, the Aluminum Alloy can not only greatly reduce the weight of the building, saving materials, but also can reduce the component transport, installation work, speed up the construction progress. The earthquake zone and inaccessible mountainous and remote areas, the economic effect is more significant and Aluminum Alloy aluminum. Beautiful appearance, good corrosion resistance, high reflectivity of light and heat, the sound absorption performance is good, through the method of chemical and electrochemical can obtain different colors. So aluminum is widely used in industrial and civil buildings roof , walls, doors and windows, skeleton, interior and exterior trim panels, ceiling, ceiling, railing, arm, indoor furniture, store container and construction of the template.

The construction industry is one of the three main market of aluminum, the world around 20% of the total aluminum production capacity for the construction industry, construction industry of some developed industrial countries, the amount of aluminum accounted for more than 30% of its total output. In recent years, building aluminum products continue to be updated, color aluminum plate, aluminum composite panel, composite door and window frame, application of novel aluminum alloy template building products also increased year by year. China has in industrial and civil architecture application aluminum alloy production of roofing, walls, doors and windows, and gradually extended to inside and outside decoration, construction template has been good results.