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隔板是汽轮机主要部件之一,其直径1米左右,主要由外环、叶栅、隔板体三部分组焊而成。坡口为半“U”型,深而狭窄,正反面各两条。由于隔板是汽轮机高温高压区域段的通流部分,不但焊缝质量要求高,而且变形要求严,否则会影响汽轮机的寿命和效率。一、工艺的改进采用传统的焊接方法(手工电弧焊),劳动条件差,焊接变形大,经常超出图纸要求,因此我们对工艺作了一些改进:
Separator is one of the main components of the steam turbine. The diameter of the separator is about 1 meter. It is mainly composed of three parts of outer ring, cascade and baffle body. Grooves for the half “U” type, deep and narrow, the front and back of the two. Since the baffle is the through-flow part of the high-temperature and high-pressure steam turbine section, not only the weld quality requirements are high, but also the deformation requirements are strict, otherwise it will affect the life and efficiency of the steam turbine. First, the process improvement Using traditional welding methods (manual arc welding), poor working conditions, large welding deformation, often exceeding the requirements of the drawings, so we made some improvements to the process: