This paper introduces the producing and technology characteristics of the square and rectangular double - welded seam pipe.

介绍了双焊缝方矩形钢管生产技术的特点及冷弯等边槽钢孔型设计参数.

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Study showed that angle deformation of T joint is changed along the welded seam length.

研究表明,T形接头的角变形沿焊缝长度方向是变化的.

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However, the voltage welding has lower temperature peak value , wider welded seam, and smaller depth - to - width ratio.

而中压下电子束焊接时的温度峰值较低, 且焊缝较宽,焊缝深宽比较小.

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