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Title:
METHOD OF REPAIRING TURBINE COMPONENT, AND TURBINE COMPONENT
Document Type and Number:
Japanese Patent JP2017020421
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To repair a turbine component having abrasion damage by joining a repair material to an abrasion part of the turbine component in one body through diffusion soldering by using a diffusion heat treatment technique.SOLUTION: A method of repairing a turbine component comprises: a reception inspection process 11 of performing damage inspection on a turbine component; a coating, oxide layer removing and molding treatment process 12 of removing a coating layer and an oxide layer formed on a surface of the turbine component, and also grinding an abrasion damage part so as to mold an abrasion molding part on a base material of the turbine component; a cleaning process 13 of cleaning the surface of the turbine component; a repair material filling process 14 of filling the abrasion molding part of the turbine component with a repair material using N-based paste; a diffusion heat treatment process 15 of loading the turbine component filled with the repair material in a vacuum heat treatment furnace, and performing a diffusion heat treatment at a high temperature of 1,000-1,200°C; and a surface finishing process 16 of molding the turbine component into a component shape before the abrasion damaging, the turbine component being prepared by molding into the component shape before the abrasion damaging.SELECTED DRAWING: Figure 1

Inventors:
SAITO DAIZO
ISHIKAWA YOSUKE
MAEDA HIDEYUKI
ISHIBASHI KAZUTOSHI
Application Number:
JP2015138967A
Publication Date:
January 26, 2017
Filing Date:
July 10, 2015
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
F01D25/00; B22F1/00; B23K1/00; B23K20/00; B23K31/00; C22C19/07; F01D5/28; F01D9/02; F02C7/00; F23R3/42
Domestic Patent References:
JP2007224414A2007-09-06
JP2013007342A2013-01-10
JP2002303155A2002-10-18
JP2003176727A2003-06-27
JP2007191798A2007-08-02
JP2005014090A2005-01-20
JP2012200761A2012-10-22
JP2012154197A2012-08-16
JP2006046147A2006-02-16
JP2014224533A2014-12-04
Foreign References:
WO2014165052A12014-10-09
US20140259666A12014-09-18
Attorney, Agent or Firm:
Patent business corporation Tokyo International Patent Office



 
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