The Paton Welding Journal, 2024, №07



2024 №07 (02)

DOI of Article 10.37434/tpwj2024.07.03

2024 №07 (04)

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The Paton Welding Journal, 2024, #7, 17-21 pages

Welding and technological properties of flux-cored wire with the charge in the form of granulated powder

I.O. Ryabtsev¹, A.A. Babinets¹, I.P. Lentyugov¹, J. Niagaj², A. Czuprynski³

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: a_babinets@ukr.net
²Upper Silesian Institute of Technology, Poland
³Silesian Polytechnic Institute, Poland

Abstract
Comparative experimental studies have been carried out on the influence of the type and particle size distribution of the original metal granulated materials, which were used as a flux-cored wire charge, on its welding and technological properties during submerged arc surfacing. High-speed steel powder PG-R6M5 with 50‒300 μm and 200‒250 μm granulation, obtained by spraying of a melt metal, was used as a charge for experimental wires. The standard was flux-cored wire, the charge of which consists of ferroalloys with 50‒300 μm granulation, calculated to ensure a similar chemical composition of the deposited metal and manufactured using standard technology. It has been experimentally determined that the welding and technological properties of three types of wires are at a high level, while the surfacing process with flux-cored wires, the charge of which contains granulated powder PG-R6M5, is characterized by greater stability, which results in an increase in melting and surfacing coefficients, and a decrease in the loss coefficient, compared to analogue wire with a charge of ferroalloy powders. It was also determined that the content of harmful impurities in the sample deposited with experimental wires with a charge of granulated powders is lower than in the standard sample. The patterns noted above indicate that the use of granulated powder in a fluxcored wire charge is not only technically feasible, but also leads to an increase in flux-cored wire homogeneity, which has a positive effect on their welding and technological properties.
Keywords: arc surfacing, flux-cored wire, flux-cored wire charge, particle size distribution of powders, ferroalloys, welding and technological properties, deposited metal, surfacing stability, metallurgical heredity

Received: 16.04.2024
Received in revised form: 23.05.2024
Accepted: 18.07.2024

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Suggested Citation

I.O. Ryabtsev, A.A. Babinets, I.P. Lentyugov, J. Niagaj, A. Czuprynski (2024) Welding and technological properties of flux-cored wire with the charge in the form of granulated powder. The Paton Welding J., 07, 17-21.

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