METHOD OF RECOVERING OPERATING PROPERTIES OF TURBO MACHINE VANES FROM ALLOYED STEELS Russian patent published in 2011 - IPC B23P6/00 C21D6/00 C22F1/18 

Abstract RU 2424886 C2

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used for recovery of operating performances of the vanes of steam turbines, gas transfer plants and gas turbine engines, made from alloyed steels. Proposed method comprises removing defective surface metal layer, holding the vane in vacuum and thermal treatment. The latter is performed by heating the vane for vane metal degassing and reduction of its dislocation structure, and cooling down in vacuum to ambient temperature. Heating is performed at 150°C° to 650°C. Holding in vacuum is carried out at said temperature for 0.2-1.5 h. Note here that holding and cooling in vacuum is performed under longitudinal magnetic field of intensity varying from 10 kA/m to 100 kA/m.

EFFECT: reduced labour input, higher operating performances of vanes.

25 cl, 7 tbl, 1 ex

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RU 2 424 886 C2

Authors

Smyslov Anatolij Mikhajlovich

Smyslova Marina Konstantinovna

Mingazhev Askar Dzhamilevich

Selivanov Konstantin Sergeevich

Novikov Anton Vladimirovich

Izmajlova Nailja Fedorovna

Mingazheva Alisa Askarovna

Dyblenko Mikhail Jur'Evich

Tarasjuk Ivan Vasil'Evich

Dates

2011-07-27Published

2009-09-15Filed