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叶片是汽轮机的重要零件之一,用来将蒸汽的动能转变为轮轴上的机械功。它的截面是由一个圆弧、几个圆弧或很多座标点所组成的型线。该型线加工的准确与否,直接影响到汽轮机所发出的功率和它的安全运转。为保证叶片型线制造的准确和加工中的方便,必须先行制造叶片型线的原始样板,再以它为基准复制其他工作样板,作为叶片及刀具的加工和检验用。此时,该样板就作为一种原始量具加以妥善存放和保管,
Blades are an important part of steam turbines and are used to convert the kinetic energy of steam into mechanical work on the axle. Its cross-section is composed of a circular arc, a few arcs or a lot of coordinate points formed line. The accuracy of the line processing directly affects the turbine power and its safe operation. In order to ensure the accuracy of blade profiled manufacturing and the convenience in processing, the original template of blade profile must be manufactured first, and then the other working templates should be copied based on it as the processing and inspection of blade and tool. At this point, the model is properly stored and stored as an original measure,