[China Aluminum Industry Network] In the context of the shortage of copper resources and air-conditioning production, the air-conditioning industry has raised a round of copper alternative technology this year. At present, many air-conditioning companies, including Chigo, Kelon, and Gree, have begun to use copper-aluminum connecting pipes instead of pure copper connecting pipes. Midea Air-Conditioner is fully opposed to copper and aluminum pipes, and accuses the copper-aluminum pipe as a "black heart pipe", causing an uproar in the industry. In recent years, the price of international electrolytic copper has increased from 20,000 yuan per ton to 80,000 yuan. Correspondingly, the proportion of copper pipes in the cost of air-conditioning has risen to about 25%. The operating costs of air-conditioning and refrigeration product companies have risen sharply. It is urgently needed. Look for new alternative materials. According to Zhao Yue, a senior engineer at China Ocean University, the use of copper and aluminum pipes has four major advantages: First, the welding technology advantages: The use of thin-wall copper and aluminum pipe welding technology to produce the third generation of copper and aluminum connecting pipe, the weld strength is higher than the copper pipe , Aluminum tube's own strength; Second, the service life advantages: the appearance of copper and aluminum tubes using cross-linked polyethylene for anti-corrosion treatment, the service life of more than 20 years; Third, energy-saving advantages: the use of copper and aluminum connecting pipe will be conducive to connecting the tube Insulation, reduce the waste of cold, improve energy-saving level; Fourth, excellent bending performance, easy installation, transfer machine. Acrylic Sign Board,Acrylic Sandwich Board,Acrylic Led Sign Board,Acrylic Light Board NINGBO WIKI IMPORT EXPORT CO., LTD. , https://www.feituosafety.com