Abstract

The paper presents studies of the influence of energy-technological modes of welding on the physical and mechanical properties of welded joints obtained by submerged-arc welding, with the use of slag from silicomanganese production for parts of mining equipment. To study the welding and technological properties, we used a welding flux of 0.45-2.5 mm fraction based on a silicomanganese slag with a chemical composition, wt. %: 0.42 FeO, 16.22 MnO, 29.00 CaO, 41.34 SiO2, 6.53 Al2O3, 1.33 MgO, 0.24 S, 0.022 P, 0.008 ZnO, 0.031 C, 0.31 F, 0.15 TiO2, 0.025 Cr2O3. Automatic welding of 09G2S low-alloy steel under this flux was carried out by Sv-08GA wire. Various welding modes were investigated to ensure the required penetration depth and the absence of external defects (pores, cracks, cavities). Based on the data obtained, the dependences of the influence of the parameters of the welding mode on the mechanical properties of welded samples are plotted. It is shown that changes in the parameters of the current strength, welding speed and voltage can affect the physical and mechanical properties of the weld, as well as the transition of sulfur and hydrogen into the weld.).

Details

Title
Selection of energy-technological modes of submerged-arc welding with silicomanganese slag for parts of mining equipment
Author
Kozyrev, N A 1 ; Usoltsev, A A 1 ; Kryukov, R E 1 ; Mikhno, A R 1 ; V Ya 1 ; sellermayer, T 1 

 Siberian State Industrial University, 42 Kirova str., Novokuznetsk, 654007, Russia 
Publication year
2021
Publication date
Jul 2021
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2561946443
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.