[China Aluminum Network] In the next few years, China will build large-scale smart grids, nuclear power, railways, and buildings. The demand for wire and cable products will increase. How to save costs and increase profits has become the number one problem for wire and cable manufacturers. YOGA PULL BELTS Omega Eco Deco Materials(GuangDong) Co., Ltd , https://www.rococfloor.com
The copper price caused by the depletion of domestic copper resources and imports from abroad has increased, and many wire and cable companies have turned their attention to aluminum. Industry insiders pointed out that "using aluminum instead of copper" has become an inevitable trend in the transformation and development of the cable industry.
Copper resources are increasingly lacking The cable industry is facing problems Copper materials have good electrical conductivity and thermal conductivity, and can reduce the loss of electrical energy when delivering current, and have been difficult for wire and cable manufacturers to cut. At present, more than 60% of China's wire and cable industry uses copper to make cables, and the amount of copper used to produce cables each year accounts for more than 60% of the total domestic copper used.
China is a country with a large population. Copper consumption accounts for about 40% of the world's total. In order to meet the power grid, housing, automobiles, and exports, in December 2012, China’s copper demand reached 4.2 million kilometers, a record high for nine months. Moreover, in the context of increasing spending to stimulate the economy, China’s monthly required copper is enough to surround the Earth more than 100 times. According to the "2012 China Wire and Cable Industry Analysis Report," the market capacity of China's power cables will continue to grow at an annual rate of 8% to 9% over the next five years.
As we all know, the cable plays a vital “media†role in the entire power transmission process. With the implementation of the West-to-East power transmission and power grid reconstruction projects and the gradual progress of urbanization, the demand for cables also appears. Rising trend.
At present, the output value of China's wire and cable industry has exceeded 1 trillion yuan, accounting for more than 25% of the global wire and cable market share, and it has surpassed the United States as the world's number one producer.
However, the world’s top ten mining giants control nearly 75% of the world's mine production, while China’s reserves of copper resources are approximately 26 million tons, and the actual amount of copper used each year is nearly 5 million tons. U.S. Goldman Sachs Group expects that China’s copper demand will jump by 8% in 2013 to reach an unprecedented 88.33 million tons, which will increase the total global demand and cause a shortage of 6,000 tons of supply and demand. In 2012, the oversupply amount was 21.6. Ten thousand tons.
According to calculations, China's copper resources have more support for five years. Due to the scarcity of copper resources, 70% of China's copper concentrates are dependent on imports, which puts great pressure on smelting companies, causing a sharp increase in costs. According to related companies, each import of 1 ton of copper from abroad will result in a loss of 1,000 to 2,000 yuan. At the same time, as more and more companies are flooding into cable production, the dependence of the cable industry on copper imports is also increasing, and manufacturing and construction costs have increased.
Aluminum resources are rich in economic and environmental protection have advantages Because of the contradiction between supply and demand in the copper market, leading to soaring prices, coupled with the difficulty of copper construction and installation, high installation costs, easy to steal, easy aging and other shortcomings, many wire and cable companies to develop new technologies , new materials, research and development of high-tech, high-performance aluminum materials to meet the special needs of wire and cable products.
It is estimated that the cross section of the aluminum conductor is 61% larger than that of the copper conductor under the same transmission current. Therefore, in terms of conductor weight, to make the two conductors have the same current carrying capacity, the weight of the copper conductor required is about twice that of the aluminum conductor. In addition, the price ratio of copper to aluminum is approximately 3.5, and the cost of the equivalent copper conductor is 7 times that of the aluminum conductor.
In fact, from the perspective of resources, China's aluminum resources are more abundant than copper resources. At present, there are 310 proven bauxite ore mines in China, distributed in 19 provinces, autonomous regions and municipalities directly under the Central Government. The reserves of bauxite reached 2.273 billion tons, including 705 million tons of A+B+C grade, accounting for 31% of the total retained reserves.
Moreover, the use of aluminum core cable instead of copper core cable has more advantages. In terms of investment costs, compared with aluminum core cables with the same current carrying capacity and copper core cables, 35kV aluminum core cables can save costs by 40% to 60%, and 10kv aluminum core cables can save costs by 50% to 70%. The larger the cable cross-section, the more obvious the effect. At the same time, in terms of transportation, laying overhead, etc., due to the small diameter and light weight of the aluminum core cable, it is less laborious and labor-saving than the copper core cable, and the matching of cable accessories is also easier to solve. In the distribution network construction project, the use of aluminum core cable can not only meet the requirements of grid construction and development, but also reduce the cost of project construction.
Aluminum alloy cable has been researched and developed by American scientists for more than 40 years since 1968. It has a market share of 80% in North American countries. It has stood the test of time and history, and aluminum alloy cables passed the United States, Canada, and Australia. Authoritative organizations testing and certification and China National Cable and Wire Testing Center and other authoritative organizations testing and certification. Moreover, no matter from raw material production, processing, manufacturing, transportation, installation, operation and recycling, aluminum alloy cable has unparalleled economic and environmental advantages over traditional copper core cables, and is a better alternative to copper cables.
A new era of aluminum-to-copper-based trend cables was started back in 2006. China has already tried to use aluminum in many ways. According to statistical data, in 2006, the amount of copper for electrical use in China was 354 tons, and the amount of aluminum conductor electrical was 107 tons. Among the conductors involved in the copper-saving wire and cable include electrical aluminum and aluminum alloy wire, copper clad aluminum wire, copper clad steel wire, thin aluminum wire and copper clad aluminum wire. This year, the total amount of copper clad aluminum wire used in China is about 50,000 tons, which is mainly used for communication cables.
At present, there are many companies in our country that have designated aluminum alloy cables for wire and cable production. In the case of a serious lack of copper resources, the cable industry "aluminum substitute copper" is tantamount to a material revolution. Although the current statement on aluminum substitute copper has not yet been unified, it is also a general trend. For example, the Shanghai Cable Research Institute, "On the Aluminum Section of China's Cable Industry," clearly points out that in China's cable industry, "copper-on-aluminum" significantly affects the cost and profit of cable products.
China's "Twelfth Five-Year Plan" emphasizes energy conservation and sustainable development. As a new type of energy-saving material, aluminum alloy cables meet the new concept of low-carbon and environmental protection. The Ministry of Housing and Construction, the State Grid, and the State Administration of Fire and Fire Protection have widely recognized the use of this new technology in China. The safety, electrical, and mechanical properties of aluminum alloy power cables have been tested by relevant departments and are in compliance with relevant standards. The requirements are now being gradually promoted in China's power engineering.
With the maturation of aluminum-based copper technology, it is expected that in the next 3 to 5 years, China's aluminum alloy cable market will experience a rapid growth through the reduction of raw material costs and the promotion of urbanization. With a market size of 100 million yuan, aluminum alloy cables will soon open a brand new cable era.
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