In this paper, laser induced plasma signals were analyzed during keyhole welding through three methods. According to the results, the relativity between optical
"Gas Transmitting From West to East Project" is significant. It should ensure the welding quality and safety of pipeline. The task is very arduous to guarantee
Base metals of domestic pipeline steels were used to study the effect of Mn on corrosion properties of SSCC(Sulfide Stress Corrosion Cracking), and welds were c
<正>Deep cryogenic treatment technology of electrodes is put forward to improve electrode life of resistance spot welding of aluminum alloy LF2.Deep cryogenic t