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去年九月初我厂加氢车间在检查6~#循环泵时,发现电机轴与皮带轮轴的原修复焊缝边缘处产生了近三分之一周长的裂纹。该轴是电动机轴和皮带轮轴联成一体的长轴(图1),材质为45号钢。原焊接结构是将皮带轮轴的外径
Last year in early September hydrogen plant in our factory inspection 6 ~ # circulating pump and found that the motor shaft and pulley shaft edge of the original repair weld produced nearly a third of the circumference of the crack. The shaft is the motor shaft and pulley shaft integrated long axis (Figure 1), made of 45 steel. The original welding structure is the outer diameter of the pulley shaft