Local Resistance of Heating Molybdenum Sheet in a Test Device
More details
Hide details
1
University of Zilina, Univerzitna 1, 01001 Zilina, Slovak Republic
2
Lublin University of Technology, Faculty of Mechanical Engineering, Institute of Transport, Internal Combustion Engines and Ecology, 36 Nadbystrzycka Street, 20-618 Lublin, Poland
Publication date: 2017-09-03
Adv. Sci. Technol. Res. J. 2017; 11(3):87-93
KEYWORDS
TOPICS
ABSTRACT
Large demand for bulk of sapphire optical products, which are widely used as
illuminators, optical windows in aviation and aeronautics etc., generates the inquiry of
effective production of high quality industrial crystals. The technology of crystal growth with
the horizontal single crystal sapphire crystallization method is based on putting the crystal
seed into the front of the crucible resistant to temperatures up to 2150°C. Without
encompassment of the production technology of this special container made from thin
molybdenum sheet is not realistic to consider the productive exploitation of horizontal
crystallization systems in engineering practice. This paper presents the analysis of the
possibility of the molybdenum sheet local resistance heating by its deep drawing to obtain
better drawing properties by increased blank temperature.