公开(公告)号：JPH1061404A

公开(公告)日：1998-03-03

申请号：JP16706697

申请日：1997-06-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER J ,  SHURMAN BRIAN J ,  BORRUSO MICHAEL V

IPC: F01D5/18

Abstract: PROBLEM TO BE SOLVED: To keep extremely adjacent other holes opening for a test, by arranging a step for preparing an aerofoil having a plurality of cooling holes and a ultraviolet curing type material to the holes, so that desired holes out of the plurality of cooling holes can be closed. SOLUTION: The aerofoil 10 of a typical turbine blade is equipped with a front edge 12, a rear edge and a row of a plurality of cooling holes 16. The cooling holes 16 are communicated with a cooling passage in the inside of the aerofoil 10. A material 24 used for closing specific holes has sufficient tackiness that the end of the material 24 may not be lifted up during an air treatment process. Also, the material 24 is a ultraviolet curing type material, especially, a ultraviolet curing type acrylic material, has an edge supplementation as well as desired adhesive property and viscosity, and can be arranged to holes extremely adjacent the other holes which can not be closed. Hereby, under a condition that the material 24 does not completely exit for a text, a row 22 of holes can be coated with the material 24 while remaining a row 20 of holes.

公开(公告)号：DE69714524D1

公开(公告)日：2002-09-12

申请号：DE69714524

申请日：1997-06-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER J ,  SHURMAN BRIAN J ,  BORRUSO MICHAEL V

IPC: F01D5/18

Abstract: A process for closing cooling holes of an airfoil includes the steps of providing an airfoil having a plurality of cooling holes, closing desired holes of said plurality of cooling holes by applying an ultraviolet curable material over the holes.

公开(公告)号：DE69714524T2

公开(公告)日：2003-04-24

申请号：DE69714524

申请日：1997-06-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER J ,  SHURMAN BRIAN J ,  BORRUSO MICHAEL V

IPC: F01D5/18

Abstract: A process for closing cooling holes of an airfoil includes the steps of providing an airfoil having a plurality of cooling holes, closing desired holes of said plurality of cooling holes by applying an ultraviolet curable material over the holes.