Aluminum is a light metal. Its compounds are widely distributed in nature. The content of aluminum in the earth's crust is about 8% by weight, second only to oxygen and silicon, ranking third. Among the metal species, second only to steel, it is the second largest metal. Aluminum has good electrical conductivity and ductility, and has a wide range of applications. It covers industries such as light industry, power, electronics, electronics, automobiles, machinery manufacturing, construction, and packaging, and is an important basic raw material for the development of the national economy.
The world's major producers of aluminum are: the United States, Russia, Canada, China, Australia, Brazil, etc. China's production in 1998 ranked third in the world, the main producers are: Qinghai Aluminum Plant (198,000 tons), Guizhou Aluminum Plant (195,000 tons), Baotou Aluminum Group (113,000 tons), Guangxi Pingguo Aluminum Plant (105,000 tons), Ningxia Qingtongxia Aluminum Plant (102,000 tons), etc.
The main factors influencing the aluminum price change are: (1) output and import and export volume; (2) inventory; (3) the level of electricity charges; (4) the degree of application of related substitute products; (5) improvement and innovation of production processes.
The main features of futures trading: A. Large number of production and sales, with numerous buyers and sellers; B. Quality uniformity, simple specifications, easy classification of grade standards; C, easy storage, convenient transportation; D, price fluctuations
Overview of international and domestic transactions: The exchange with the largest volume of aluminum contracts in the world is the London Metal Exchange (LME). In 1997, the volume of aluminum contracts reached 22.5 million lots, which was 28 times that of the world's current year; there are also many exchanges in the country. The aluminum standard contract was listed one after another. The Shanghai Metal Exchange was one of the more influential exchanges. From the opening of business in 1992 to the end of 1997, the transaction volume was 14.94 million tons, of which 11.4 million tons was sold in 1994, which was 7.6 times of the current year's aluminum output.
Aluminum and aluminum alloys and other general characteristics
Compared with aluminum and other aluminum alloy materials, it has the following features:
Low density
The density of aluminum and aluminum alloys is close to 2.7g/, which is about 1/3 of that of iron or copper.
,high strength
Aluminum and aluminum alloys have high strength. After a certain degree of cold processing can strengthen the matrix strength, some of the aluminum alloys can also be strengthened by heat treatment.
, good electrical and thermal conductivity
The conductive and thermal conductivity of aluminum is second only to silver, copper and gold.
Good corrosion resistance
The surface of aluminum is easy to naturally produce a layer of dense and strong AL2O3 protective film, which can well protect the substrate from corrosion. Through anodizing and coloring by hand, cast aluminum alloys with good casting properties or deformed aluminum alloys with good plasticity can be obtained.
, easy processing
After adding a certain amount of alloying elements, cast aluminum alloys with good casting properties or deformed aluminum alloys with good plasticity can be obtained.
What is an aluminum ingot?
Aluminum, the raw material of our daily industry is called aluminum ingot, according to national standards (GB/T1196-93) should be called "remelting aluminum ingot," but everyone used to call "aluminum ingot." It is produced by electrolytic method using alumina-cryolithite. There are two major categories of aluminum ingots after they have entered industrial applications: cast aluminum alloys and deformed aluminum alloys. Foundry aluminum and aluminum alloys are castings that produce aluminum by casting; deformed aluminum and aluminum alloys are processed products that produce aluminum by pressure processing methods: plates, strips, foils, tubes, rods, patterns, wires, and forgings.
The world's major producers of aluminum are: the United States, Russia, Canada, China, Australia, Brazil, etc. China's production in 1998 ranked third in the world, the main producers are: Qinghai Aluminum Plant (198,000 tons), Guizhou Aluminum Plant (195,000 tons), Baotou Aluminum Group (113,000 tons), Guangxi Pingguo Aluminum Plant (105,000 tons), Ningxia Qingtongxia Aluminum Plant (102,000 tons), etc.
The main factors influencing the aluminum price change are: (1) output and import and export volume; (2) inventory; (3) the level of electricity charges; (4) the degree of application of related substitute products; (5) improvement and innovation of production processes.
The main features of futures trading: A. Large number of production and sales, with numerous buyers and sellers; B. Quality uniformity, simple specifications, easy classification of grade standards; C, easy storage, convenient transportation; D, price fluctuations
Overview of international and domestic transactions: The exchange with the largest volume of aluminum contracts in the world is the London Metal Exchange (LME). In 1997, the volume of aluminum contracts reached 22.5 million lots, which was 28 times that of the world's current year; there are also many exchanges in the country. The aluminum standard contract was listed one after another. The Shanghai Metal Exchange was one of the more influential exchanges. From the opening of business in 1992 to the end of 1997, the transaction volume was 14.94 million tons, of which 11.4 million tons was sold in 1994, which was 7.6 times of the current year's aluminum output.
Aluminum and aluminum alloys and other general characteristics
Compared with aluminum and other aluminum alloy materials, it has the following features:
Low density
The density of aluminum and aluminum alloys is close to 2.7g/, which is about 1/3 of that of iron or copper.
,high strength
Aluminum and aluminum alloys have high strength. After a certain degree of cold processing can strengthen the matrix strength, some of the aluminum alloys can also be strengthened by heat treatment.
, good electrical and thermal conductivity
The conductive and thermal conductivity of aluminum is second only to silver, copper and gold.
Good corrosion resistance
The surface of aluminum is easy to naturally produce a layer of dense and strong AL2O3 protective film, which can well protect the substrate from corrosion. Through anodizing and coloring by hand, cast aluminum alloys with good casting properties or deformed aluminum alloys with good plasticity can be obtained.
, easy processing
After adding a certain amount of alloying elements, cast aluminum alloys with good casting properties or deformed aluminum alloys with good plasticity can be obtained.
What is an aluminum ingot?
Aluminum, the raw material of our daily industry is called aluminum ingot, according to national standards (GB/T1196-93) should be called "remelting aluminum ingot," but everyone used to call "aluminum ingot." It is produced by electrolytic method using alumina-cryolithite. There are two major categories of aluminum ingots after they have entered industrial applications: cast aluminum alloys and deformed aluminum alloys. Foundry aluminum and aluminum alloys are castings that produce aluminum by casting; deformed aluminum and aluminum alloys are processed products that produce aluminum by pressure processing methods: plates, strips, foils, tubes, rods, patterns, wires, and forgings.