| 2014 №06 (25) |
DOI of Article 10.15407/tpwj2014.06.26 |
2014 №06 (27) |
The Paton Welding Journal, 2014, #6-7, 124-127 pages
APPLICATION OF PULSE ATOMIZING JET IN ELECTRIC ARC METALLIZING
V.A. ROYANOV1 and V.I. BOBIKOV2
1Priasovsky State Technical University. 7 Universitetskaya Str., 87500, Mariupol, Donetsk region, Ukraine. E-mail: royanov@pstu.ed
2Company «Azovobshchemash». 1 Mashinostroitelej Str., 87535, Mariupol, Donetsk region, Ukraine. E-mail: voffka-008@mail.ru
Abstract
The paper presents the results of investigation of pulse atomizing air jet application in electric arc metallizing. To ensure the pulsed mode, the respective device was developed allowing control of outflowing of a jet with frequency within 0-130 Hz. Oscillograms of variation of dynamic pressure are given. Dependence of pulse atomizing air jet on frequency of closing the spray gun nozzle channel is shown. Coating microstructures are given. Influence of pulsation frequency on composition of coatings spray-deposited with PP-MM-2 wire is shown. 15 Ref., 6 Figures.
Keywords: arc metallizing, pulsed mode, atomizing air jet, spray gun nozzle channel, coating microstructure, outflow, stationary discontinuity, jet dynamic pressure
Received: 05.05.14
Published: 28.09.14
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