首页>
外国专利>
A process for the renewed at a helicoidal guide surface treatment of aerodynamic turbines - components, such as rotor blades and guide vanes
A process for the renewed at a helicoidal guide surface treatment of aerodynamic turbines - components, such as rotor blades and guide vanes
展开▼
机译:一种在空气动力学涡轮机的螺旋形导向表面处理中进行更新的过程-组件,例如转子叶片和导向叶片
展开▼
页面导航
摘要
著录项
相似文献
摘要
A refurbished turbine vane and method of producing the same. Used turbine vanes are cleaned, annealed and slotted adjacent their ends, after which the cooling passages are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane having a short chord, is built up by welding along its full length with an alloy wire, after which the slots that were cut adjacent the ends are closed, also by welding. Then the worn surfaces of the vane are built-up by a plasma spray process, using a metal powder with added silica, to a thickness as great as 30 to 40 thousandths of an inch. The built-up vane is then sintered and thereafter surface finished to conform to the original contour of the blade when new. The cooling holes are finally recut, and the vane polished as required and inspected.
展开▼