The Paton Welding Journal, 2013, №09



2013 №09 (08)

2013 №09 (01)

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The Paton Welding Journal, 2013, #9, 50-51 pages

MANUFACTURE OF RESISTANCE ELECTRICAL HEATER BY MICROPLASMA CLADDING PROCESS

Yu.S. BORISOV, S.G. VOJNAROVICH, A.N. KISLITSA, S.M. KALYUZHNY and E.K. KUZMICH-YANCHUK

E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua


Abstract
Attempts to develop flat electrical heating elements with application of the technology thermal spraying of electrically insulating and resistive layers were made several times, in order to improve heating effectiveness and save electric power. This work is a study of the process of manufacturing flat electrical heaters by microplasma powder spraying. Al2O3 was selected as electrically insulating material in view of its high electric strength (3-5 kV/mm). TiO2 powder of Metachin company was used to form resistive coatings. Analysis of the produced coating microstructure showed that they are uniform, dense and do not contain foreign inclusions. Investigations of model heating properties conducted in an experimental facility showed that maximum heating temperature was equal to 230 °C, and the achieved specific power of the heater was 75 W. 7 Ref., 1 Table, 3 Figures.


Keywords: microplasma spraying, electrical heater, aluminium oxide, titanium oxide, heating tracks, heating temperature


Received:                12.07.13
Published:               28.09.13


References
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3. Borisov, Yu.S., Pereverzev, Yu.N., Bobrik, V.G. et al. (1999) Deposition of narrow band coatings by microplasma spraying. Avtomatich. Svarka, 6, 53-55.
4. Kislitsa, A.N., Kuzmich-Yanchuk, E.K., Kislitsa N.Yu. (2009) Producing of narrow strips by microplasma spraying with Ni-Cr wire. In: Abstr. of Papers of Sci.-Techn. Conf. of Young Scientists and Specialists on Welding and Related Technologies (Kiev, 27-29 May, 2009). Kiev, 2009.
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7. Mitrev, P., Benvenuti, J., Hofman, P. (2005) Phase transitions in titanium oxide thin films under action of excimer laser radiation. http://journals.ioffe.ru/ pjtf /2005/21/p17-23.pdf

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