FIELD: machine engineering.
SUBSTANCE: shroud of the turbine blade is made. Put on the prepared to surfacing contact surface banding shelf wear-resistant coating and remove any excess coating referred to obtain the desired size bandage shelves. The bandage shelf is made with an allowance compensating for its subsequent shrinkage when a wear-resistant coating is applied, and after surfacing of the above coating, the blade is annealed in a vacuum10-3-10-4mm Hg. at a temperature not exceeding 1050°C. While surfacing wear-resistant coating on the contact surface banding shelves carry out in one pass without breaking the minimum arc current of 30-40 A. Allowance banding shelves exceeds its subsequent shrinkage is not more than 5-10%.
EFFECT: invention makes it possible to increase the reliability and service life of the turbine blades.
2 cl, 5 dwg, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| TURBOMACHINES BLADES SHROUDS FROM HEAT-RESISTANT NICKEL ALLOYS RECONSTRUCTION METHOD | 2017 |
|
RU2667110C1 |
| METHOD FOR RECOVERY OF RETAINING BLADES OF TURBOMACHINERY SHELVES OF TITANIUM ALLOYS | 2014 |
|
RU2586191C1 |
| METHOD FOR RECONSTRUCTION OF PLATFORMS FOR COMPRESSOR BLADES IN GAS TURBINE ENGINES (GTE) | 2016 |
|
RU2627558C1 |
| GAS TURBINE ENGINE PART WITH THE THIN-WALLED ELEMENT RESTORATION METHOD | 2017 |
|
RU2676937C1 |
| METHOD FOR REPAIRING CONTACT SURFACE OF BANDAGE FLANGE OF WORKING VANE OF TURBINE | 2001 |
|
RU2179915C1 |
| METHOD FOR RESTORING THE CHORD LINE OF THE FEATHER FROM A HEAT-RESISTANT NICKEL ALLOY | 2022 |
|
RU2791745C1 |
| PROCEDURE FOR FORMING DISCRETE WELDED COATING ON BLADE BODY OF TURBO-MACHINE | 2009 |
|
RU2420610C1 |
| METHOD OF RESTORATION OF CONTACT SURFACES OF TURBINE ROTOR BLADE PLATFORMS | 2001 |
|
RU2219351C2 |
| PROCEDURE FOR PRODUCTION OF BUILT-UP COATING ON BLADE BODY OF TURBO-MACHINE | 2009 |
|
RU2434973C2 |
| HARD-FACING OF POWER PLANT BLADES | 2013 |
|
RU2545877C2 |
