The Paton Welding Journal, 2017, #11, 18-22 pages
Selection of technology for repair welding of parts of turbine units
A.K. Tsaryuk1, V.P. Elagin1, G.A. Rozumenko2, A.I. Pasechnik3 and V.A. Peretyatko4
E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazimir Malevich Str., 03150, Kiev, Ukraine. E-mail: firstname.lastname@example.org
Zmiyevskaya heat power plant
Slobozhanskoye vil., 63460, Zmiyev district, Kharkov region, Ukraine. Е-mail: сsto_zm.email@example.com
19 Geroev truda Str., 84500, Bakhmut, Ukraine. Е-mail: а.firstname.lastname@example.org
120/4e Kazatskaya Str., 03680, Kiev, Ukraine. Е-mail: email@example.com
The peculiarities of disassembly-free repair of steel grade 15Kh1M1FL body of the control valve of the medium pressure cylinder of the turbine PT-200-130 of the heat power plant, in which a crack was formed after a long-term service, are given. The repair without disassembly of the valve is possible due to the use of technology of repair arc welding by pearlite electrodes with preheating and thermal recovery. 12 Ref, 1 Table, 7 Figures.
crack, case, steel 15Kh1M1FL, repair welding, thermal metal recovery
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