APPARATUS FOR DETERMINING PHYSICAL PARAMETERS OF HIGH-TEMPERATURE METAL PHOTOMETRIC MELTING IN VERTICAL VACUUM ELECTRIC FURNACE Russian patent published in 2017 - IPC F27B17/02 G01N11/16 

FIELD: metallurgy.

SUBSTANCE: invention relates to physics and metallurgy, namely to devices used in research and laboratory operations for measuring physical parameters of meltings. Proposed apparatus comprising a suspension system in the form of an elastic nichrome thread, on which a non-metallic sleeve is suspended, a mirror reflecting a light beam, crucible with melting sample located coaxially in a container secured to a ceramic rod connected to a non-metallic sleeve by means of a ceramic pin, and a heat shield for protection against overheating the non-metallic sleeve, according to the invention, the non-metallic sleeve is equipped with a non metallic fixing unit, fixed relative to the non-metal sleeve by means of three ceramic pins and made in the form of a box of four pairwise parallel rectangular plates, each of which has two slots for their mutual fixation and holes for installation of said ceramic pins perpendicular to the plates, each of said plates can be in contact with the non-metallic sleeve at continuous straight line to provide minimum thermal contact of said sleeve and said unit.

EFFECT: invention is intended for non-contact measuring physical parameters of metal melting samples, for example, based on iron, cobalt and nickel, by photometric method based on measuring torsion oscillations of the crucible with the melting in vertical vacuum electric furnace, possibility of performing experiments without disruption, as well as reliability and accuracy of obtained results when determining kinematic viscosity and electrical resistance of metal meltings are increased.

1 cl, 3 dwg