Through analysis on inside weld forming and welding procedure of SSAW pipe, it pointed out weld crack is easy to appear in brittle temperature zone in welding pool.
通过对螺旋埋弧焊管内焊缝成型和焊接过程的分析，指出焊缝裂纹易产生在焊接熔池脆性温度区。
This thesis researches the temperature field measurement of the welding of electron beam in the vacuum and laser welding pool.
论文着重研究了真空电子束钎焊的温度场和激光焊接熔池温度场的测量。
Temperature measurement with colorimetric method by CCD has been used to measure the temperature of the laser welding pool.
采用CCD比色法测量系统对激光焊接熔池的温度场进行测量。
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