Through theoretical and experimental analyses, it is well known that active infrared technology can be applied in the investigation of industrial welding seams.
通过理论和实际的分析，得出主动红外技术能很好地应用于工业焊缝的检测。
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In welding process, the over range of the interpass temperature can be avoided by the control of heat treatment equipment and by the check of the far-infrared temperature instrument.
To reveal the influence of forced convection on gas shielded arc welding temperature field, the infrared camera was used to investigate the temperature field of the base metal in CO2 arc welding.