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分析了SA335P91厚壁炉管焊接的冷裂敏感性 ,研究了焊接线能量和层间温度对P91钢的焊接接头冲击韧性的影响 ,并规定了手工氩弧焊的焊接线能量上、下限值和合理的层间温度
The cold cracking susceptibility of SA335P91 thick-walled tube was analyzed. The influence of welding wire energy and interlayer temperature on the impact toughness of P91 steel was studied. The upper and lower limits of welding wire energy Reasonable interlayer temperature