• 通过最近一次断裂拉杆现场调查宏观断口分析,发现断裂发生拉杆的补焊焊缝熔合线附近

    Based on the fracture site investigation and macro-rod fracture analysis, the welding rod fracture occurred in the vicinity of the weld fusion line.

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  • X65线焊接过程中,内侧焊缝金属出现横向纵向沿熔合线方向的裂纹,横向裂纹贯穿焊缝金属横截面。

    The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal cross section inside weld metal were formed, while X65 pipe line steel was welding.

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  • 焊接接头拉伸试验断裂部位焊缝焊接HAZ熔合线附近硬度最高远离熔合线硬度降低逐渐接近金属的硬度。

    The tensile test fracture area locates on weld seam, and the hardness near HAZ fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.

    youdao

  • 焊接接头拉伸试验断裂部位焊缝焊接HAZ熔合线附近硬度最高远离熔合线硬度降低逐渐接近金属的硬度。

    The tensile test fracture area locates on weld seam, and the hardness near HAZ fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.

    youdao

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