GRAMOTA Publishers suggests publishing your scientific articles in periodicals
Pedagogy. Issues of Theory and PracticePhilological Sciences. Issues of Theory and PracticeManuscript

Archive of Scientific Articles

SOURCE:   Almanac of Modern Science and Education. Tambov: Gramota, 2014. № 7. P. 102-106. ISSN 1993-5552.
SCIENTIFIC AREA: Technical Sciences
To Publish Article in the Journal | To show issue content | To show all articles in section | Subject Index

License Agreement on scientific materials use.

EXTERNAL MAGNETIC FIELD APPLICATION FOR GAS-POWDER FLOW FORMATION IN PLASMA COATING

Pashchenko Valerii Nikolaevich
National Technical University of Ukraine "Kyiv Polytechnic Institute"


Abstract. The article discusses the problem of external transverse magnetic field application for the control of coatings formation process during their plasma spraying. The author investigates the influence of external magnetic field on the quality indices of resulting coatings and the performance indicators of spraying process. It is shown that the forced change of electric arc position in plasmatron arc channel with the help of magnetic field enables to realize the spatial coordination of the mass transfer channels of the gas and solid phases of gas-powder flow and, as a result, to increase significantly the utilization factor of dispersed material, reduce the porosity of coating and increase the strength of its adhesion with the basis.
Key words and phrases: электрическая дуга, плазмотрон, постоянное магнитное поле, плазменная струя, плазменное напыление, пятно напыления, коэффициент использования материала, electric arc, plasmatron, constant magnetic field, plasma jet, plasma spraying, spraying spot, utilization factor of material.
Open the whole article in PDF format. Free PDF-files viewer can be downloaded here.

 

References:
  1. Zhukov M. F., Devyatov B. N., Novikov O. Ya. i dr. Teoriya termicheskoi elektrodugovoi plazmy. Ch. 2. Nestatsionarnye protsessy i radiatsionnyi teploobmen v termicheskoi plazme. Novosibirsk: Nauka, 1987. 288 s.
  2. Kosinov V. A., Yankovskii A. I. Vozdeistvie vneshnego magnitnogo polya na dugu, stabilizirovannuyu vikhrem // Tezisy dokladov VII Vsesoyuznoi konferentsii po generatoram nizkotemperaturnoi plazmy. Alma-Ata: Izd-vo Kazakh. energ. in-ta, 1977. T. І. S. 203-206.
  3. Kudinov V. V., Pekshev P. Yu., Belashchenko V. E. i dr. Nanesenie pokrytii plazmoi. M.: Nauka, 1990. 408 s.
  4. Kulumbaev E. B., Lelevkin V. M. Chislennoe issledovanie elektricheskoi dugi v tsilindricheskom kanale vo vneshnem poperechnom magnitnom pole // Teplofizika vysokikh temperatur. 1999. T. 37. № 5. S. 700-706.

To Publish Article in the Journal | To show issue content | To show all articles in section | Subject Index

© 2006-2019 GRAMOTA Publishers

site development and search engine optimization (seo): krav.ru