In recent years, China's rapid economic development, but in the process of development, unreasonable economic structure and economic growth way also gradually highlights the shortcomings, largely reflected in three aspects: first, China's urbanization construction of powerful boost to the industrial metal consumption, "demand" in China leads the world, and once created the international price of the metal in 2003 ~ 2006 and 2009-2006, two rounds of big bull market. But commodity pricing power in the world, China always weak voice, raw material cost is exogenous, appear even "buy you and sell the base". This strategic security resource support capability and resources to China has brought a severe test.
Second, traditional rely on real estate and infrastructure investment to boost economic growth pattern faced with diminishing marginal effect of embarrassment. Along with urbanization, housing, transportation, urban infrastructure projects completed and put into operation in succession, China's large-scale real estate and infrastructure investment boom has in the past, the future of fixed asset investment growth is more difficult to return to the previous peak.
Third, the real estate economy social problem gradually revealed. High house prices and the lag of resource price reforms made in the development process of China's economic inevitably appeared some imbalance in the allocation and unfairly priced, resource utilization unreasonable situation. Excessive pursuit of GDP scale also associated with a series of the consequences of "extensive" expansion, such as environmental pollution, low energy efficiency, such as the processing and manufacturing overcapacity.
Aluminum alloy in the field of transportation and cable applications
With emphasis on the energy conservation and emissions reduction and recycling economy, industry control and transformation and upgrading of China's economic development will become the future direction. In a sense, a lot of excess capacity and high energy consumption have been criticized industrial metals industry will gradually end high growth, and smooth handover. But, for the development of new materials and development are still opened up a vast space for part of the industrial metals. Non-ferrous metal is the next step of information technology, materials science and technology, life science, ecological science and technology, oceanic and space science and technology high-tech development indispensable important support materials. Especially the development of seven strategic emerging industries, aerospace, high-speed rail, communication, etc. The implementation of major strategic project, as well as high-end mechanical equipment performance boost, for metal material tensile strength, corrosion resistance, thermal conductivity, density ratio, etc. Various performance put forward higher request.
Agencies believe that the future will benefit from the aluminum alloy aluminum metal strong demand and show better explosive force. In the ministry of industry and the new material industry "twelfth five-year" development plan "put forward, in 2015 China's new materials industry output value will reach 2 trillion yuan, an average annual growth rate of more than 25%, the promotion of 30 key new material varieties include special metal functional materials, high-end metal structure materials and cutting-edge material. High-end metal structure materials including high quality special steel, new light alloy materials, which is a metal such as aluminum, magnesium, titanium, represented by the proportion of less than 5 or less than 4.5 g/cm3 density light metal alloy as the base.
In several types of light alloy, aluminum alloy is widely used in construction, aerospace, rail transportation vehicles, automobile lightweight, electronic appliances and other fields. The advantage of aluminum alloy mainly reflects in lightweight portable, significant energy saving benefit, easily recycled, without antirust processing, greater compressive strength, etc.
Aluminous material application in railway equipment mainly concentrated in the body. At present our country railway passenger dedicated line adopts the emu, besides CRH1 body used for stainless steel, the rest of the car body adopt aluminum alloy material. Due to the rapid development of railway infrastructure investment in the year of 2009 and 2010, is expected to completed peak in high-speed rail over the next two years. Relevant data show that in 2015 China's high-speed rail operating mileage will reach 18000 kilometers, by the end of 2012, China's high-speed rail operating mileage reached 9356 kilometers, simple calculation, the next 3 years Gao Tiexin operation can reach more than 8650 kilometers. According to the operation of high-speed train density of 0.7 m/km, it takes about 6050 moving car. It is estimated that each car moving about with aluminum 8 to 9 tons, aluminum plate is 1.5 tons. So in the next three years will consume at least 48400 tons of aluminum extrusions and 9050 tons of aluminum sheet. As the future development of transportation industry in our country, aluminium and aluminium alloy in railway construction and usage of high-speed rail industry will rise steadily.
Again heavy freight cars, for example, developed countries have widely used aluminum parts, trailer vehicle weight lighter than similar domestic steel car 20% ~ 30%, and high transport efficiency, energy saving benefit is significant. According to our country existing social trailer has 3 million cars, vehicles for the application of new materials can save fuel a year 8 million tons, 24 million tons of carbon emissions reduction.
In addition to the mechanical equipment, aluminum alloy wire and cable in the usage is also increasing. At present, foreign aluminum wire is widely used in substation busbar, intensive bus in transformer, screen, size of cross section of dry, wires, its application proportion respectively 90%, 50% 50% in Saudi Arabia, South Korea and Japan, Thailand 60% 60% in Europe and America. As the technology matures and market recognition gradually increase, the scale of China's aluminum and copper will rise sharply. Aluminum alloy cable market in China in the next five years is expected to make substantive progress, the size of the market, or $200 billion.
Aluminum alloy could usher in a golden development
The government in recent years, China has developed "non-ferrous metals" twelfth five-year "development plan", "aluminium industry" twelfth five-year "development plan" and "new material industry" twelfth five-year "development plan" and other policy documents to guide the healthy development of aluminum industry. Are mentioned in the above file at present, China's aluminum processing industry industrial structure unreasonable, development ability is low, the lack of support capability and established the positive development of deep processing products and the aim of the new material. "Aluminum industry" twelfth five-year "development plan" is the first domestic varieties of a single metal development plan, the visible state of aluminum industry development importance. "Planning" is put forward, the development of high, sharp, fine processing products, aluminium industry must be intensive road. "Planning" clearly put forward at the same time, high-end aluminum aluminum processing and sales accounted for by 2015 sales revenue by 8% to 20% in 2010. "New materials industry" twelfth five-year "development plan" will be high-end aluminum production scale is made up of "non-ferrous metals" twelfth five-year "development plan" of the 200000 tons to 300000 tons. Country attaches great importance to aluminum of high-end aluminum products processing industry to accelerate the industrialization, extending industrial chain of high-end aluminum. In addition, as the aluminum processing industry development drawbacks gradually revealed, national regulators will increase further. Deputy executive director of the China nonferrous metals processing industry association and secretary-general Ma Shiguang on "the 6th China international exhibition on copper," said, the relevant state departments are drafted, copper, aluminum processing enterprises of the industrial access requirements intended to regulate industry development, optimize the industrial structure. Aluminum processing industry barriers to entry will be from the perspectives of scale, technology, regulatory new aluminum processing enterprises, to accelerate the process of aluminum processing industry to optimize industry structure, guide the aluminum processing industry out of a sustainable development road. In national enterprise's double efforts, aluminum processing industry in China, with emphasis on the deep processing and high value-added industrial upgrading will continue to deepen. As the domestic economic mode transformation and industrial upgrading, metals demand will continue to maintain moderate growth, one of new alloy materials will open up new markets, in the field of high and new technology so as to usher in a golden development.