Recently, as the air-conditioning giants such as Gree, Haier and Kelon further expanded their "copper-aluminum connection pipe replacement copper connection pipe program," the National People's Congress is organizing the revision of the "Energy Conservation Law" and requiring companies to actively develop high-tech energy-saving and environmental protection materials. And Qiu Baoxing, the vice minister of the Ministry of Construction, also requires air conditioners and refrigerators, which consume large amounts of electricity and consume large amounts of copper, to actively adopt new types of energy-saving materials.
According to expert estimates: According to the current annual output of 50 million units of air conditioners in China, if the air-conditioner connection pipe fully realizes "aluminum substitutes copper", it will not only save consumers huge electricity bills, but also save 100,000 tons of copper resources each year. Therefore, many Chinese air-conditioning manufacturers are pushing for the popularization of third-generation copper-aluminum connecting pipes.
Key technologies have achieved major breakthroughs
“The price of copper rose and the copper mine was in a hurry.†According to the Xinhua News Agency report on July 10, the data released by China Customs showed that China imported 1.514 million tons of unwrought copper and copper materials from January to June, an increase of 52% year-on-year. At 3%, the price of copper soared once again to US$8,335/t to reach a higher level in 11 months, which led to an increase of 31.12% during the year. At the same time, global copper stocks have fallen by nearly 50% since the beginning of February. The domestic supply of aluminum is sufficient. Imported aluminum declined by more than 70% year-on-year. The spot price of aluminum fell from 2,800 US dollars/ton at the end of May to 2,2646.5 US dollars/ton on June 26.
From the data, it can be seen that the Chinese market urgently needs "aluminum substitute copper" technology to solve the increasingly severe "copper crisis." Because of this, the copper-aluminum connecting pipe was actively sought after by China's air-conditioning main brands Gree, Haier, Hisense, Kelon and Zhigao.
According to the Guangdong Household Electrical Appliances Association, the air conditioning of copper-aluminum connecting pipes has been put on the market since 2003. The actual use of large areas has been used for four years. The actual use effect is better than that of copper connection pipes. Consumers have not received any copper for four years. Complaints about the quality of the aluminum connection pipe itself, the failure rate is much lower than the copper connection pipe, and the technical supervision department is also prepared to strongly recommend this kind of “relaxation pipeâ€.
“The technology of copper-aluminum connecting pipe has been revolutionized three or four years ago. The timing of fully replacing the copper connecting pipe with a copper-aluminum connecting pipe has been fully matured.†Materials expert at Ocean University of China stated that the copper and aluminum pipes for air-conditioning connecting pipes are relatively Safe, more energy-efficient, and more affordable.
At present, the socket type resistance welding technology jointly developed by Qingdao Haiqing Machinery Plant and Ocean University of China also solves the welding problem of copper-aluminum connecting pipe. As long as it is properly installed, it can be normally used for more than 20 years, far higher than the national regulations. Eight years of life.
"Aluminum substitute copper" into a consensus
It is understood that as early as 2004, the air-conditioning of copper-aluminum connecting pipes had begun to be exported to the European Union, Japan and other countries. At present, major domestic brands also use copper-aluminum connecting pipes on a large scale. Gree Air-Conditioning Chairman Zhu Jianghong had openly told reporters: "Gree is accelerating the implementation of 'aluminum substitute copper' plan, gradually eliminating high-priced and inefficient copper connection pipe to support the country's energy-saving New Deal." Haier Group spokesman Lou Guangqiang also According to the reporter: "The copper-aluminum connecting pipe is an inevitable choice for upgrading the performance of the copper connecting pipe." In addition, experts from Panasonic, Chigo, Oakes and Mitsubishi also stated that the so-called "100% copper guarantee card" of individual companies may be Price traps, energy saving traps, or security traps.
Experts from the China Household Electrical Appliances Research Institute, Yan Bing, told the reporter that no matter whether it is a copper tube or an aluminum tube, there are actually no quality problems, and there will be no consequences such as leakage of fluorine or explosion. More than 99% of air-conditioner leaks of fluorine are caused by improper installation and have nothing to do with the material.
Recently, the National Development and Reform Commission and the State Construction Commission have stated that: China is a major consumer country with extremely short copper resources. More than 50% of electrolytic copper depends on imports, while China’s aluminum resources are relatively abundant. China’s annual production of air-conditioning is 50 million units. If the internal and external machine connection pipes are implemented with "Al-copper" innovation, the copper resources that can be saved are considerable.
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