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引言由于核电站的大容量汽轮机低压转子的尺寸较大(轮毂直径为3米,长12米,重量接近160吨),因此,其低压转子不能做成整体结构,即不能由一个单独的锻件制成。由阿尔斯通——大西洋公司所发展的工艺是:将预先加工好的嵌装叶片用的叶轮红套在已经加工好的主轴上。这些叶轮——其数量一般与叶片级数(或“动叶级”)相同——是一
Introduction Due to the large size of the low-pressure rotor of a large-capacity steam turbine of a nuclear power station (3 meters in diameter and 12 meters in length and weighing almost 160 tons), the low-pressure rotor can not be made as a unitary structure, ie can not be made of a single forging . Alstom - Atlantic by the company developed by the process: the pre-processed embedded blade impeller red sleeve has been processed on the spindle. These impellers - the number of which is generally the same as the number of blades (or “bucket”) - are one