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Title: Mag-welding of repair structures of main gas pipelines
Authors: Maksimov, Sergii
Oleinik, Oleg
Gavrilyuk, Anatoliy
Bibliographic description (Ukraine): Maksimov S. Mag-welding of repair structures of main gas pipelines / Sergii Maksimov, Oleg Oleinik, Anatoliy Gavrilyuk // Ukrainian Journal of Mechanical Engineering and Materials Science. – 2016. – Volume 2, number 2. – Р. 1–10. – Bibliography: 16 titles.
Issue Date: 2016
Publisher: Publishing House of Lviv Polytechnic National University
Keywords: main gas pipeline
arc welding
welded joint
flux-cored wire
cold cracks
diffusive hydrogen
Abstract: Investigations on the development of a basic technology of the shielded-gas mechanized arc welding of strengthening structural elements which are used in repair of main gas pipelines were carried out. It is shown that the advanced welding wires Sv08G2S, Е71Т-1, DW-50, DW-A55 are in compliance with the requirements for providing the necessary level of mechanical characteristics, impact toughness of weld metal, content of diffusive hydrogen in the deposited metal and can be recommended for application in the further testing of technology for repair of the operating pipelines under the field conditions. The carried out works resulted in the working out of documentation on the technology of mechanized arc welding in shielding gases in repair of main gas pipelines of Ukraine.
Content type: Article
Appears in Collections:Ukrainian Journal of Mechanical Engineering And Materials Science. – 2016. – Vol. 2, No. 2

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