FIELD: welding production process, possibly flaw correction of castings of nickel-base high-alloy refractory alloys.
SUBSTANCE: method comprises steps of hot gas-static compaction of castings; separating flaw containing casing portion having surface micro-porosity just before compaction; subjecting said portion of sand-blast treatment; then spraying onto it coating whose chemical content is almost the same as of casting material; performing heat treatment of casting in vacuum at temperature lower than temperature of alloy homogenizing; rayed coating has thickness no less than 200 - 300 micrometers.
EFFECT: reliable effective correction of flaws of casting of gas turbine engine blades.
2 cl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CASTINGS REPAIRE METHOD, USING THE ARC WELDING | 2015 |
|
RU2630080C2 |
| METHOD FOR CORRECTING FLAWS OF CASTINGS | 2001 |
|
RU2204467C2 |
| METHOD OF DEFECT ATTACK ON DETAILS | 2007 |
|
RU2351449C2 |
| METHOD OF PROFILE RESTORATION OF BLADE BODY OF GAS TURBINE ENGINE | 2014 |
|
RU2556175C1 |
| METHOD FOR RESTORING THE CHORD LINE OF THE FEATHER FROM A HEAT-RESISTANT NICKEL ALLOY | 2022 |
|
RU2791745C1 |
| METHOD TO PROTECT SURFACE OF TURBINE BLADE CASTS AT THERMAL TREATMENT | 2014 |
|
RU2556178C1 |
| METHOD OF TREATMENT OF CAST PARTS MADE FROM HIGH-TEMPERATURE NICKEL ALLOYS | 2006 |
|
RU2309191C1 |
| METHOD OF CASTS SEALING MADE OF NICKEL ALLOY | 2007 |
|
RU2361010C2 |
| METHOD OF HEAT TREATMENT OF CASTINGS FROM REFRACTORY NICKEL ALLOYS | 2014 |
|
RU2572925C1 |
| METHOD OF REPAIRING SURFACE DEFECTS OF GAS TURBINE BLADE BODY | 2010 |
|
RU2419526C1 |
