新型激光焊接设备在铜-铝管件的焊接中越来越多地代替了超声波焊接和钎焊,利用激光焊接技术大大提高了太阳能吸热器生产的经济性。在太阳能吸热器的生产过程中,管式吸热器的焊接越来越多地采用了激光焊接技术,并逐步取代了超声波焊接和钎焊。这不仅有经济和技术的原因,也基于激光焊接技术比上述两种焊接技术更加有利于环境保护的原 The new laser welding equipment in the copper - aluminum pipe fittings more and more to replace the ultrasonic welding and brazing, the use of laser welding technology greatly enhance the economy of solar heat sink production. In the manufacture of solar heat sinks, the use of laser welding technology is increasingly being adopted for the welding of tubular heat sinks, and ultrasonic welding and brazing are gradually being replaced. This is not only economical and technical reasons, but also based on the laser welding technology than the two welding technology is more conducive to environmental protection of the original