초록 ▼

An arcuate anti-erosion shield of stellite or the like has an inner surface with a film supported adhesive attached thereto and gasket strips formed from a fluoroelastomer along the edges thereof. The method of repair of an eroded shield is disclosed in which the eroded shield is removed, welding ma

An arcuate anti-erosion shield of stellite or the like has an inner surface with a film supported adhesive attached thereto and gasket strips formed from a fluoroelastomer along the edges thereof. The method of repair of an eroded shield is disclosed in which the eroded shield is removed, welding material dissolved by acid, and the blade sandblasted. The film is removed from the shield and the shield installed on the turbine blade. Pressure and heat is applied to the shield to thermoset the adhesive.

대표청구항 ▼

A method of in situ repair of an eroded anti-erosion shield welded to a steam turbine blade comprising the steps of: (a) removing the remainder of the eroded anti-erosion shield; (b) removing the eroded shield welding material; (c) providing a repair anti-erosion shield having: (i) a film supported

A method of in situ repair of an eroded anti-erosion shield welded to a steam turbine blade comprising the steps of: (a) removing the remainder of the eroded anti-erosion shield; (b) removing the eroded shield welding material; (c) providing a repair anti-erosion shield having: (i) a film supported adhesive disposed on the surface of the repair shield to be attached to the turbine blade, and (ii) fluoropolymer gaskets disposed along edge surfaces of the repair shield; (d) installing the repair shield on the turbine blade after removing the film from said repair shield; and (e) curing the adhesive.