The new copper-aluminum composite pipe utilizes copper in the inner layer to contact the refrigerant for heat absorption, and the outer layer of aluminum serves as a heat dissipation purpose. It successfully uses its own patented technology to realize metallurgical bonding between copper and aluminum. The structure of this composite pipe is mainly a 3003 aluminum alloy pipe with a uniform composite weight ratio of about 68% on the outer surface of the T2 copper pipe. The composite pipe is entirely composed of atomic metal bonds at the copper-aluminum joint surface, perfectly combines the advantages of the two metals, and has strong anti-leakage capability and anti-vibration fatigue failure strength.
According to Tian Fusheng, chief engineer of Jiangsu Xingrong High-tech Co., Ltd., the use of one ton of copper-aluminum composite pipes saves 850 kilograms of copper, and each air conditioner therefore reduces costs by about 120-150 yuan. In addition, after the condensers and evaporators of the air conditioner adopt copper-aluminum composite pipes, electrochemical corrosion does not occur between the aluminum fins of the pipes and the air conditioner, and long-term use does not reduce the cooling (heating) effect of the air conditioner, and at the same time improves the air conditioning. Energy efficiency ratio. The Guangdong Galanz Air Conditioner Co., Ltd. and other companies tested and tried, this copper-aluminum composite internal thread pipe than the single copper threaded efficiency ratio increased by 5%. According to this ratio, according to the existing air-conditioning in the country, more than 2 billion kWh can be saved annually. At present, this technology has received 1 patent, applied for 4 items, and has applied for international PCT patents.