Quite a bit of heat is needed, due to the thickness of the copper pipe, and an electrical soldering iron probably won't be able to deliver sufficent heat. 因为铜管有一定的百度，所以有可能锡焊的温度不够，它对温度的要求是比较高的。
Laser soldering technology has been found an important application in micro-electronic joining and packaging. 激光软钎焊技术在微电子焊接和封装方面具有重要的应用价值。
