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研究了具有不同合金元素钒和铬的两种石油用钢管 ,在对其经过不同热处理后进行环缝焊接。对其焊接接头进行性能测试和金相组织分析 ,表明通过合理选择焊接工艺 ,可以满足该实验中所采用的石油钢管的焊接要求
Two kinds of petroleum steel pipes with different vanadium and chromium alloying elements were studied, and girth welded after different heat treatment. The performance test and microstructure analysis of its welded joints show that by choosing the welding process reasonably, the welding requirements of petroleum steel pipes used in this experiment can be met