TPWJ, 2015, #5-6, 52-54 pages
Peculiarities of fire-cracker plate electrode arc surfacing over alloying charge
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue № 5/6, 2015 (May/June)
Karaganda State Technical University. 56 Mir Bld., 100027, Karaganda, Kazakhstan. E-mail: firstname.lastname@example.org
The method of arc surfacing of flat parts using fire-cracker plate electrode over alloying charge was offered. The main factors determining stability of surfacing process are the following: arc voltage U, arc current I, and electrode sectional area S. As a result of experiments the range of surfacing current (300-400 A) was determined providing stability of mode at the start and throughout the whole process of surfacing. It was established that hardness of deposited metal amounted to HRC 47-52, which is higher than that of metal such as steel G13. Metallographic investigations showed that the offered method provides a minimal penetration of base metal, that will allow obtaining the necessary chemical composition of deposited metal in single-layer surfacing. 4 Ref., 2 Tables, 3 Figures.
arc surfacing, alloying charge, plate electrode, hardness of deposited metal, penetration
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2. Livshits, L.S., Grinberg, N.A., Kurkumelli, E.G. (1969) Principles of alloying of deposited metal. Moscow: Mashinostroenie.
3. Frumin, I.I. (1961) Automatic electric arc surfacing. Kharkov: Metallurgizdat.
4. Ryabtsev, I.A., Kondratiev, I.A. (1999) Mechanized electric arc surfacing of metallurgical equipment parts. Kiev: Ekotekhnologiya.