2018 №04 (05) DOI of Article
2018 №04 (07)

Automatic Welding 2018 #04
Avtomaticheskaya Svarka (Automatic Welding), № 4, 2018, pp. 37-43

Selection of welding technology in manufacture and restoration repair of spirals of high-pressure heaters of power units of NPP

N.M. Makhlin1, V.E. Vodolazsky1, A.E. Popov1, A.E. Korotynsky2, S.I. Lavrov3

1SE «Scientific and engineering center of welding and control in the field of nuclear energy of Ukraine of E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: electro@paton.kiev.ua
2E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
3SE «Atomenergomash» of the SE NNEGC «Energoatom». 71503, Energodar, Zaporozhye region, PO Box 306. E-mail: lavrov@aem.zp.ua
The high-pressure heaters are the fundamentally necessary links of the second circuit power units of nuclear power plants with light water VVER-type reactors. They represent one-plane or two-plane piped spirals of carbon steel. The paper presents the results of selection and mastering the mechanized welding technology for applying high-pressure heaters in the manufacture and renovation repair. 20 Ref., 2 Fig.
Keywords: high-pressure heaters, spirals of high-pressure heaters, automatic welding, consumable electrode, electrode wire, mixture of shielding gases, technological equipment, rotary joints of pipelines, welding rotator
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