1, transportation industry (including automobile manufacturing, rail transportation industry).
2, equipment and machinery manufacturing.
3, consumer durables industry (including light industry).
4, transportation, equipment and machinery equipment manufacturing, consumer durables industry in China's aluminum applications accounted for about 10%, 10% and 12%, respectively. And the same period of Europe, North America and Japan's aluminum profile consumption structure, the proportion of industrial consumption reached 60%, 55% and 40% respectively, much higher than in China.
Expanded information:
Construction:
Construction products made from aluminum and aluminum alloy materials. Usually processed into castings, forgings, foils, plates, strips, tubes, rods, profiles, etc., and then made by cold bending, sawing, drilling, assembling, coloring and other processes.
Performance Pure aluminum has low strength and its use is limited. But add a small amount of one or several alloying elements, such as magnesium, silicon, manganese, copper, zinc, iron, chromium, titanium, etc., can be obtained with different properties of aluminum alloy. Aluminum alloy and then by cold working and heat treatment, further strengthened and hardened, its tensile strength greatly improved.
Aluminum's standard potential is -1.67 volts, the chemical nature is very active, easy to play with the oxygen in the air and the formation of a layer of solid dense oxide film, so in the ordinary atmosphere and clean water, aluminum has good corrosion resistance.
But it will produce galvanic corrosion when contacting with steel or other metal materials, and it will produce corrosion when contacting with alkaline materials such as concrete, cement mortar, lime and so on in a humid environment, and it will produce corrosion when contacting with wood, soil and so on. Therefore, appropriate anti-corrosion treatment is required.
Baidu Encyclopedia-Aluminum