The Paton Welding Journal, 2006, №11

2006 №11 (10)

2006 №11 (01)

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The Paton Welding Journal, 2006, #11, 43-45 pages

Effect of graphite on kinetics of transfer of carbon to weld pool in flux-cored wire cladding

A.P. Zhudra, S.Yu. Krivchikov, V.V. Petrov

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Given are the results of investigations into the effect of grain size composition of graphite powder in the core of a self-shielding flux-cored wire on absorption of carbon by the weld pool and arc stability in electric arc cladding. It has been established that the maximal value of the coefficient of transfer of carbon to deposited metal and high arc stability can be achieved by using the electrode graphite with a grain size of 200–250 m in the flux-cored wire core.
Keywords: arc cladding, flux-cored wire, deposited metal, graphite, grain size composition, transfer of carbon, arc stability, metal transfer

References

1. Ostrovsky, V.S., Virgiliev, Yu.S., Kotikov, V.I. et al. (1986) Artificial graphite. Moscow: Metallurgiya.
2. Krivchikov, S.Yu., Zhudra, A.P., Petrov, V.V. (1994) Effect of carbonates on welding-technological properties of self-shielding flux-cored wire for surfacing of white iron. Avtomatich. Svarka, 7/8, 18–20.
3. Khitrin, L.N., Golovina, E.S. (1967) High-temperature interaction of graphite with different reactive gases. In: High-temperature investigations. Moscow: Nauka.
4. Aleksandrov, V.V., Korchagin, M.A. (1987) About mechanism and macrokinetics of reactions in burning of SHS-systems. Fizika Goreniya i Vzryva, 5, 55–63.

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Suggested Citation

A.P. Zhudra, S.Yu. Krivchikov, V.V. Petrov (2006) Effect of graphite on kinetics of transfer of carbon to weld pool in flux-cored wire cladding. The Paton Welding J., 11, 43-45.

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