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2017 №11 (02) DOI of Article
10.15407/as2017.11.03 		2017 №11 (04)

Automatic Welding 2017 №11


Avtomaticheskaya Svarka (Automatic Welding), #11, 2017, pp. 25-30
 

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


1E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazimir Malevich Str., 03150, Kiev, Ukraine. E-mail: office@paton.kiev.ua
2Zmiyevskaya heat power plant Slobozhanskoye vil., 63460, Zmiyev district, Kharkov region, Ukraine. Е-mail: сsto_zm.tes@der.com.ua
3OJSC «Energoinvest» 19 Geroev truda Str., 84500, Bakhmut, Ukraine. Е-mail: а.pasechnik@der.com.ua
4PJSC «Tsentrenergo» 120/4e Kazatskaya Str., 03680, Kiev, Ukraine. Е-mail: peretyatkovladimir@ukr.net
 
Abstract
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.
Keywords: crack, case, steel 15Kh1M1FL, repair welding, thermal metal recovery
 
Received:                10.10.17
Published:               06.12.17
 
 
References
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  3. Anokhov, A.E., Korolkov, P.M. (2003) Welding and heat treatment of case power equipment in repair. Kiev, Ekotekhnologiya [in Russian].
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  8. Tsaryuk, A.K., Ivanenko, V.D., Volkov, V.V. et al. (2009) Repair welding of turbine case parts from heat-resistant steels without subsequent heat treatment. Ibid., 12, 32–36.
  9. Tsaryuk, A.K., Ivanenko, V.D., Skulsky, V.Yu. et al. (2012) Technology of repair welding of boiler unit assemblies without postweld heat treatment. Ibid., 9, 37–43.
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  12. Som Dutt Sharma, S.D., Saluja, R., Moeed, K.M. (2013) A review on effect of preheating and/or post weld heat treatment. (PWHT) on hardened steel. J. of Techn. Research and Applications, 1(Issue 2), 5–7.