高压喷嘴室导流板斜锥孔系加工工艺分析

Analysis on processing technic to lean taper holes combination in HP NOZ BOX DPH

某给水泵汽轮机组高压喷嘴室中喷嘴室导流板喷嘴孔由7组空间相交斜度达75°的斜锥孔系组成,加工难度很大,文章就该工件的加工工艺方案及制造过程进行分析,阐述了成功方案的工艺方法及注意事项。

There are 7 lean taper holes combination in HP NOZ BOX DPH of a feed （water） pump steam turbine, it＇s very difficult to machine. The successful project to solve the difficult problem is explained.