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针对 2 1 /4Cr-1Mo钢焊接后产生裂纹的原因进行了分析 ,结果表明 ,产生裂纹的主要原因是氢浓度过高而引起的氢致延迟裂纹 ,并根据实际的产品特点提出了合适的返修措施
The reason of cracking after 2 1 / 4Cr-1Mo steel welding was analyzed. The results show that the main reason of cracks is the hydrogen induced delay crack caused by high hydrogen concentration, and the suitable rework is proposed according to the actual product characteristics Measures