IMPROVING THE COMPOSITION OF FLUX-CORED WIRES OF C – Si – Мn – Сr – W – V SYSTEM IN ORDER TO INCREASE THE QUALITY AND PERFORMANCE OF THE DEPOSITED LAYER
https://doi.org/10.17073/0368-0797-2016-11-806-813
Abstract
Laboratory studies of influence of the flux-cored wire composition on properties of the deposited layer of steel samples shows that the introduction to the composition of flux-cored 35V9Kh3SF wire of the fluorine-carbon-containing material instead of amorphous graphite leads to a decrease in porosity of the deposited layer and reduces the amount of contained non-metallic inclusions, including stroke oxide inclusions and non-deformable silicates. On the basis of statistical processing of experimental data the dependence of the deposited layer hardness on the carbon equivalent of used flux-cored 35V9Kh3SF wire was determined. As a result of generalization of experimental data the influence of increasing carbon equivalent of flux-cored 35V9Kh3SF wire on the increase in of the deposited layer hardness, the average surface hardness and the microhardness of martensite was established. With increasing carbon equivalent, calculated according to the formula of the Paton Institute of Electric Welding, the deposited layer hardness increases linearly.
About the Authors
N. A. Kozyrev
Siberian State Industrial University
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Head of the Chair “Mate rials, Foundry and Welding Production”,
Novokuznetsk
N. V. Kibko
Siberian State Industrial University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Lecturer of the Chair “Mate - rials, Foundry and Welding Production”,
Novokuznetsk
A. A. Umanskii
Siberian State Industrial University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair of Ferrous Metallurgy,
Novokuznetsk
D. A. Titov
Siberian State Industrial University
Russian Federation
Russian Federation
Postgraduate of the Chair “Materials, Foundry and Welding Production”,
Novokuznetsk
L. P. Bashchenko
Siberian State Industrial University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Editor of journal “Izve stiya vuzov. Chernaya metallurgiya”,
Novokuznetsk
References
1. Traino A.I. Rational roller operation and restoration. Steel in Translation. 2008, vol. 38, no. 10, pp. 871–875.
2. Shebanits E.N., Omel’yanenko N.I., Kurakin Yu.N., Matvienko V.N., Leshchinskii L.K., Dubinskii B.E., Stepnov K.K. Impro ving the fracture toughness and wear resistance of hardfaced hot-rolling-mill rolls. Metallurgist. 2012, vol. 56, no. 7–8, pp. 613–617.
3. Danilov L.I., Skorokhvatov N.B., Sobolev V.F. Increase of service life of counter rollers of 2000 rolling mill of hot strip rolling in JSC “Severstal’”. Chernaya metallurgiya. Byul. in-ta “Chermetinformatsiya”. 2004, no. 8, pp. 68–69. (In Russ.).
4. Ogarkov N.N., Belyaev A.I. Stoikost’ i kachestvo prokatnykh valkov [Durability and quality of rolling mills]. Magnitogorsk: MGTU, 2008, 131 p. (In Russ.).
5. Matvienko V.N., Gulakov S.V., Royanov V.A. Reduction by welding of metallurgical equipment parts in the conditions of JSC “ММК named after Il’ich”. Metall i lit’e Ukrainy. 2005, no. 7–8, pp. 66–69. (In Russ.).
6. Gulidov I.N. Oborudovanie prokatnykh tsekhov: ekspluatatsiya i nadezhnost’ [Equipment of rolling-mill shops: service and durability]. Moscow: Intermet inzhiniring, 2004, 315 p. (In Russ.).
7. Ryabtsev I.A., Kondrat’ev I.A. Mekhanizirovannaya elektrodugovaya naplavka detalei metallurgicheskogo oborudovaniya [Mechanical electric-arc welding of metallurgical equipment parts]. Kiev: Ekotekhnologiya, 1999, 64 p.
8. Kal’yanov V.N., Novitskaya A.V. Increase of durability of rolling mills when welding by economically alloyed steel. Svarochnoe proizvodstvo. 1997, no. 10, pp. 23–27. (In Russ.).
9. Kondrat’ev I.A., Ryabtsev I.A., Kuskov Yu.M. Arc and electroslag welding of rollers of rolling mills. Svarshchik. 2004, no. 1, pp. 7–9. (In Russ.).
10. Titarenko V.I., Golyakevich A.A., Orlov L.N., Mosypan V.V., Babenko M.A., Telyuk D.V., Tarasenko V.V. Reducing welding of rollers of rolling mills with flux-cored wire. Svarochnoe proizvodstvo. 2013, no. 7, pp. 29–32. (In Russ.).
11. Kozyrev N.A., Titov D.A., Starovatskaya S.N., Shurupov V.M., Goryushkin V.F. The influence of the introduction of the charge flux-cored wire system with C – Si – Мn – Сr – W – V carbon- fluorine-containing additives and nickel. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2014, no. 6, pp. 31–33. (In Russ.).
12. Kozyrev N.A., Kryukov R.E., Roor A.V., Bashchenko L.P., Lipatova U.I. Research and development of new carbon-fluorine-containing additives for welding fluxes. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2015, vol. 58, no. 4, pp. 258–261. (In Russ.).
13. Kozyrev N.A., Kryukov N.E., Kryukov R.E., Igushev V.F., Koval’skiy I.N. Technological aspects of using a carbon–fluorine containing addition in submerged- arc welding. Welding International. 2016, vol. 30, no. 4, pp. 325–328.
14. Makarov E.L., Yakushin B.F. Teoriya svarivaemosti stalei i splavov [Theory of welding characteristics of steels and alloys]. Moscow: MGTU im. N.E. Baumana, 2014, 487 p. (In Russ.).
15. Lakhtin Yu.M., Leont’eva V.P. Materialovedenie [Material science]. Moscow: Al’yans, 2013, 528 p. (In Russ.).
Review
For citations:
Kozyrev N.A., Kibko N.V., Umanskii A.A., Titov D.A., Bashchenko L.P. IMPROVING THE COMPOSITION OF FLUX-CORED WIRES OF C – Si – Мn – Сr – W – V SYSTEM IN ORDER TO INCREASE THE QUALITY AND PERFORMANCE OF THE DEPOSITED LAYER. Izvestiya. Ferrous Metallurgy. 2016;59(11):806-813. (In Russ.) https://doi.org/10.17073/0368-0797-2016-11-806-813
Views:
769
Email this article 