New technology for brazing aluminum clustered tube of refrigerator
来源期刊：中国有色金属学报(英文版)2003年第z1期
论文作者：HE Peng(何 鹏) FENG Ji-cai(冯吉才) YU Ze-xing(余泽兴) JIA Jin-guo(贾进国) MAI Han-hui(麦汉辉)
文章页码：45 - 49
Key words：aluminum clustered tube; high frequency induction brazing; high frequency power supply
Abstract: The feasibility of high frequency induction brazing for the aluminum clustered tube of refrigerator was analyzed. According to characteristic of aluminum and aluminum alloy, a kind of high frequency power supply was devised and applied, and the technology parameters applied in the practical production were pronounced. The results show that aluminum and aluminum alloy can be heated quickly by high frequency induction. In the proper frequency range and under the appropriate matching parameters, the velocity of induction heating is almost the same as the other magnetic metals as heated by induction. With IGBT transistor high frequency power supply, aluminum and aluminum alloy can be heated to the brazing temperature in a shorter time, which will bring the higher production rate, and the automatic brazing to replace the manual brazing can be achieved. The high temperature aluminum brazing paste mixed with minute active powders was successfully used as brazing filler metal, which can not only save raw and processed materials but also improve the performance of joints.
HE Peng(何 鹏)1, FENG Ji-cai(冯吉才)1, YU Ze-xing(余泽兴)2, JIA Jin-guo(贾进国)2, MAI Han-hui(麦汉辉)2
(1. State Key Laboratory of Advanced Welding Production Technology,
Harbin Institute of Technology, Harbin 150001, China;
2. Shenzhen Bao an Lianhua Industry Co. Ltd, Shenzhen 518106, China)
Abstract:The feasibility of high frequency induction brazing for the aluminum clustered tube of refrigerator was analyzed. According to characteristic of aluminum and aluminum alloy, a kind of high frequency power supply was devised and applied, and the technology parameters applied in the practical production were pronounced. The results show that aluminum and aluminum alloy can be heated quickly by high frequency induction. In the proper frequency range and under the appropriate matching parameters, the velocity of induction heating is almost the same as the other magnetic metals as heated by induction. With IGBT transistor high frequency power supply, aluminum and aluminum alloy can be heated to the brazing temperature in a shorter time, which will bring the higher production rate, and the automatic brazing to replace the manual brazing can be achieved. The high temperature aluminum brazing paste mixed with minute active powders was successfully used as brazing filler metal, which can not only save raw and processed materials but also improve the performance of joints.
Key words:aluminum clustered tube; high frequency induction brazing; high frequency power supply
