Development of Technology for Welding Repair of Steel Housings Using a Combination of Ultrasonic Vibrations and Forced Cooling

Abstract:

Now, one of the most pressing issues in the development of petroleum engineering is increasing the efficiency of apparatus and machines, as well as reducing material, energy and labor resources. During operation, oil-refining equipment over time destroyed by welded joints due to the impact of power and temperature loads, corrosion, and other factors. The cause of damage in welded joints of oil and gas equipment can be justified by the occurrence in them of structural heterogeneity and residual stresses during and after welding. Today manual arc welding is almost the only applicable in the repair of equipment for oil and gas processing, which require welding operations. The high temperature source of energy and the difference in deformation properties of parts are the cause of the occurrence of substantial residual stresses, which cause a change in shape, a significant decrease in strength, a decrease in the corrosion resistance of the metal, which adversely affects the durability and reliability of the structure. At present, the technology of repair with due to manual arc welding with the concomitant heating of the defective area and subsequent heat treatment is used. A complex of simultaneously proceeding processes accompanies the welding process: thermal effects on the metal in the heat-affected zone, metallurgical processes in the weld pool and crystallization of the metal in the weld pool. The repair technology presented by us, which consists in a combination of ultrasonic shock vibrations and forced cooling during the welding process, allows to improve the mechanical properties of the welded joint, as well as to refuse to carry out heating during welding and subsequent heat treatment.

• Periodical: Materials Science Forum (Volume 989)
• Pages: 747-752
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.747
• Online since: May 2020
• Authors: Marat R. Fatkullin*, Ayrat Minnulovich Faнrushin, Rif G. Rizvanov
• Keywords: Electric Arc Welding, Forced Cooling, Heat Treatment, Mechanical Properties, Ultrasonic Shock Vibrations, Welding Deformations

References

[1] A.V. Fayzullin, A.M. Fayrushin, D.V. Karetnikov et al., Repair of cases of pumping units from steel 20HGSFL using welding technologies, Progresivnі tekhnologii і systems and ma-shinobuduvannya, 4 (2014) 191-197.

[2] A.V. Fayzullin, A.M. Fayrushin, D. V. Karetnikov, et al., Repair of cases of pumping units from steel 20HGSFL using welding technologies, ENZH Oil and Gas Business,, 1 (2014) 345-361.

[3] Khudyakov A.O. The influence of the chemical composition of the base metal on the viscous properties of the heat-affected zone of large diameter welded pipes, Bulletin of the South Ural State University. Series: Metallurgy, 3 (2014) 55-61.

[4] Chupeykina N.N. The influence of the quality of repair welding on the work ability of welded joints. Mining Informational Analytical Bulletin. 5 (2011) 181-184.

[5] N.G. Goncharov, O.I. Kolesnikov, A.N. Vorontsov, Heat treatment of welded joints of pipelines in the conditions of the route and in the factory, Science and technology of pipeline transportation of oil and petroleum products, 2 (2013) 55-59.

[6] N.G. Goncharov, O.I. Koforesnikov, A.A. Yushin et al., Investigation of defects in cast body parts of pumps and development of technology for their repair, Science and technology of pipeline transport of oil and petroleum products, 5 (2016) 84-89.

[7] Rozanov D.S. Estimated justification of post-weld heating regimes during welding of large-sized casing welded structures in power engineering, Welding and Diagnostics. 3 (2011) 47-49.

[8] A.A. Vengerov, A.U. Yakupov, A.E. Brand, Repair welding of pump cases made of medium carbon cast steel, Actual problems of pipeline transport in Western Siberia: Sat. scientific tr. Vseross scientific-tech. Conf. 2014.: Tyumen Industrial University, (2014) 13-18.

[9] Vyshemirsky E.M. Welding production of OAO Gazprom. New Requirements of Regulatory Documents, Oil Construction Journal. 1 (2015) 30-39.

[10] N.V. Zharinova, A.G. Halimov, A.M. Fairushin, Ensuring the technological strength of welded joints of martensitic chromium steel type 15X5M, Oil and Gas Business. 3 (2012) 102-108.

[11] Patent 683873 USSR, The method of ultrasonic processing of welds.

[12] Patent 2605888, Russian Federation, Method of ultrasonic welding of thick-walled structures.