FIELD: restoration of nozzle blades and working blades of gas turbine engines of cast refractory alloys.
SUBSTANCE: method comprises steps of cleaning restored surface, applying onto cleaned surface paste on base of metallic filler in the form mixture containing pellets of refractory nickel alloy, pellets of inter-metallide nickel-aluminum alloy and powdered nickel with organic binder; sintering such paste with article; applying on layer of sintered metallic filler nickel-base refractory solder; performing high-temperature vacuum soldering. Used metallic filler contains, mass %: pellets of nickel refractory alloy, 70 -75; pellets of inter-metallide nickel-aluminum alloy, 15 -20; nickel powder 5 - 10.
EFFECT: possibility for restoring complex-curvature surfaces, elevated working temperature of coating.
2 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REPAIRING SURFACE FLAWS OF ARTICLES OF GAS TURBINE ENGINE | 2003 |
|
RU2240214C1 |
| METHOD FOR RESTORING MACHINE PARTS SURFACE FLAWS | 2005 |
|
RU2310551C2 |
| METHOD OF REPAIRING SURFACE DEFECTS OF GAS TURBINE BLADE BODY | 2010 |
|
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| METHOD OF PROFILE RESTORATION OF BLADE BODY OF GAS TURBINE ENGINE | 2014 |
|
RU2556175C1 |
| SOLDERING OF POROUS MATERIAL WITH SUBSTRATE | 2014 |
|
RU2558026C1 |
| NICKEL-BASED SOLDER | 2006 |
|
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| MATERIAL FOR REPAIR OF CAST IRON AND STEEL PRODUCTS | 2007 |
|
RU2360778C1 |
| NICKEL-BASED SOLDER TO MANUFACTURE STRUCTURE OF BLISK TYPE | 2014 |
|
RU2560483C1 |
| METHOD FOR REPAIR OF COMPONENTS FROM ALLOYS WITH HEAT RESISTANT COATING | 2007 |
|
RU2344915C2 |
| METHOD OF MAKING ABRASIVE TOOL FROM SUPERHARD MATERIALS | 2010 |
|
RU2457935C2 |
