One of the key-technologies of guiding device investment casting is getting internal ring, external ring and blade unit by splitting integral guiding device part for wax-mold design.
By using 3d solid model, the twist-back Angle of steam turbine twisted long blade with integral shroud was analyzed and calculated.
采用三维实体模型，对自带围带的汽轮机扭曲长叶片的扭转恢复角进行了计算分析。
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The control stage of improved 300MW steam turbine used bowed static blade cascades with convergent tip endwall and integral shroud triple pin rotating blades.