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汽轮机行业的工艺试验不仅要着重于成批生产的叶片类产品的工艺改进和创新,而且也应能及时解决生产现场或产品试制中发生的各类问题。以下即介绍两种铰刀和一个小零件的工艺试验成果及其在生产中的应用。铰汽缸锥度定位销孔用的左螺旋铰刀为了保持汽轮机高、中压缸上下半部在加工、安装时的相对位置,在接合法兰面上用二个圆柱定位销定位(见图1A)。在汽缸加工、装配、电厂安装和运行中检修时,销钉经多次拉拨常发生拉毛现象,现场处理困难,影响定位精度的保证。六十年代初,汽缸定位改用1:50锥度销孔(见图1B),确保了产品的质量。
The technological test in the steam turbine industry should not only focus on the technological improvement and innovation of the leaf products in mass production, but also promptly solve all kinds of problems occurring in the production site or trial production of the products. The following is the introduction of two kinds of reamers and a small part of the process of test results and its application in the production. In order to keep the turbine high, the relative positions of the upper and lower half-cylinders of the medium-pressure cylinder during machining and installation are fixed on the joint flange by two cylindrical dowel pins (see Fig. 1A) . In the cylinder processing, assembly, power plant installation and operation of the overhaul, the pin pull often pulling phenomenon occurs several times, on-site processing difficulties, affecting the positioning accuracy of the guarantee. The early 1960s, cylinder positioning to 1:50 taper pin hole (see Figure 1B), to ensure the quality of the product.