employee
Gubkin, Belgorod, Russian Federation
employee
Gubkin, Belgorod, Russian Federation
UDC 621.791
Russian Library and Bibliographic Classification 347
This paper is devoted to aspects of combined welding of thick-walled cases of chemical equipment. One of the most labor-intensive stages, complicated by the requirement of preheating, is making of the root bead by a welder inside the closed space. To eliminate this problem, promising technological approaches are reviewed. Their fundamental difference is the exclusion of the root welding operation from the reverse side of the joint, which makes it possible to significantly optimize and secure working conditions.
technology, welding, flux, layer, seam, heating, backing, joints
1. Akulov AI. Technology and equipment of fusion and thermal welding. Moscow: Mashinostroenie; 2003.
2. Antikain PA. Metals and calculation of strength of boilers and pipelines. Moscow: Energoatomizdat; 1990.
3. Vasiliev VI, Ilyashchenko DP, Pavlov NV. Introduction to the basics of welding: textbook. Tomsk: Publishing House of Tomsk Polytechnic University; 2010.
4. GOST 8713-79 Flux welding. Welded joints. Main types design elements and dimensions. Moscow: Standartinform; 2005.
5. Davydov VA, Kolupaev YuF, Sidorov AV. Regulation of the shape of the root bead reverse side during arc welding of butt joints with edge cutting. Svarochnoe Proizvodstvo. 1988;11:9-11.
6. Doronin YuV. Hydrodynamic phenomena in a welding bath and their effect on the formation of the reverse side of the seam during unilateral Welding // Welding and diagnostics, 2010, No. 5, p. 1420.
7. Doronin YuV, Volobuev YuV. Features of physico-chemical properties of slag systems of welding materials forming the reverse side of the seam during unilateral arc welding. Welding and Diagnostics. 2008;2:17-23.
8. Doronin YuV. Some features of the design of lining device forming layers for single-sided arc welding of steels. Svarochnoe Proizvodstvo. 2007;3:25-28.
9. Dudko DA, Zatserkovny SA, Sidoruk BC. Influence of the parameters of manual arc welding with modulated current on the shape of the seam. Avtomaticheskaya Svarka. 1987;6:19-22.
10. Kobernik NV, Chernyshov GG, Gvozdev PP, Linnik AA. Influence of current type and polarity on seam formation under the flux. Welding and Diagnostics. 2011;5:24-27.
11. Lashchinsky AA. Design of welded chemical devices. Leningrad: Mashinostroenie; 1981.
12. Mingachev DI, Mikheev RS, Kobernik NV, Platov DV. Features of the use of lining tapes for the formation of the root seam layer of welded joints. Svarochnoe Proizvodstvo. 2016;34:34-38.
13. Multi-layered fabrics and ribbons. Flux welding tapes [Internet]. [cited 2025 Dec 08]. Available from: http://3dfabrics.ru/fabrics/lfs
14. Parshin SG. Welding technique. Manual and mechanized welding techniques: textbook. St. Petersburg: Publishing house of Polytechnic. University; 2015.
15. Trukhanov KYu, Kozlova MS. Methods of forming the root layer of the seam during welding of chemical devices. Science, Technology and Education. 2018;2(19):12-18.
16. Aquasol corporation. Fiback [Internet]. [cited 2025 Dec 08]. Available from: http://www.aquasolwelding.com/ru/fiback.
