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Aluminum product classification and use

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Aluminum product classification and use

Date:2018-01-17 Author: Click:

First, the natural characteristics of aluminum

Aluminum is a light metal and its compounds are widely distributed in nature. The aluminum in the earth's crust has about 40 to 50 billion tons of resources, second only to oxygen and silicon, ranking the third. In the metal species, second only to steel, the second largest class of metal. Aluminum has special chemical and physical properties, not only light weight, strong texture, but also outstanding ductility, electrical conductivity, thermal conductivity, heat resistance and nuclear radiation resistance, is an important basis for the development of the national economy.


Aluminum has a specific gravity of 2.7 and a density of 2.72 g / cm3, which is about one third of the usual metal. The mechanical properties of industrial pure aluminum in addition to purity, but also with the processing of information on the situation. Because of its excellent ductility, ductility, and ease of cold and hot press processing, aluminum can be both aluminum foil with a thickness of only 0.006 mm and can be cold-forged into very thin filaments. With the addition of other elements it is also possible to alloy aluminum to harden it, to even outperform structural steel, but still retain the advantages of light weight.


Aluminum ingot production is bauxite mining, alumina production, aluminum electrolysis and other production links formed.


Second, aluminum and aluminum product categories


1, electrolytic aluminum production process: bauxite → alumina → electrolytic aluminum.


2, In accordance with the main components of aluminum ingot can be divided into three categories: high-grade pure aluminum (aluminum content 99.93% -99.999%), industrial high purity aluminum (aluminum content 99.85% -99.90%), industrial aluminum 98.0% -99.7%).


3, in accordance with the market conditions of aluminum ingots can dividends three categories: one is the processing of materials, such as plates, tapes, foils, tubes, rods, forgings, powder, etc .; one is forged aluminum, wire rod cable Etc .; one is the daily life of various types of aluminum products.


Third, the main purpose of aluminum


For nearly five decades, aluminum has become one of the more widely used metals in the world. Especially in recent years, aluminum as an energy-saving, lower consumption of environmental information, regardless of the scale is still the amount of usage are further expanded. Especially in the construction, transport and packaging industries, the aluminum expenditures of the three occupations generally account for about 60% of the total aluminum expenditures for the year.


In the construction industry, aluminum is widely used in the construction industry because of the stability of aluminum in the air and the excellent appearance after anodized, especially in aluminum alloy doors and windows, aluminum-plastic pipe, fitting plate, aluminum plate Curtain wall and other aspects of the use.


In the transportation industry, in order to reduce the weight of vehicles and reduce the environmental pollution caused by exhaust emissions, a large number of transportation vehicles such as motorcycles, various types of cars, trains, subways, airplanes and ships have adopted aluminum and aluminum alloy as components and Decoration pieces. With the increasing hardness and strength of aluminum alloy processing materials, the share of the use of aerospace field began to increase year by year.


In the packaging industry, all kinds of aluminum foil for flexible packaging, all aluminum cans, all kinds of caps and caps, pharmaceutical packaging and other aluminum scale is also expanding.


In other areas of expenditure, the utilization and the application of electric and electronic appliances, household appliances (refrigerators, air conditioners), household hardware and other aspects are more and more widely used.


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