Glass melt high-temperature conductivity measuring device and method

Abstract

The invention discloses a glass melt high-temperature conductivity measuring device which comprises a high-temperature furnace with a furnace temperature control system, a high-temperature-resistant and insulating crucible is placed in the high-temperature furnace, a groove for placing a glass sample to be measured is formed in the bottom of the inner side of the crucible, and the volume of the molten glass melt is larger than that of the groove; two opposite sides in the groove are respectively connected with an electrode plate, and the two electrode plates are electrically connected with an electrochemical workstation; a high-temperature-resistant and insulating gland is arranged above the groove, a lifting device is arranged above the gland, and the gland is extruded or loosened through the lifting device, so that the gland is attached to or separated from the groove, and a closed conductance cell formed by the groove, the electrode plate and the gland is ensured to be filled with glass melt. The measuring device has the advantages of high accuracy, strong stability, capability of testing the conductivity of different types of glass melts at different temperatures and the like. The invention further discloses a glass melt high-temperature conductivity measuring method, and stable and accurate measurement of the conductivity of the glass melt is achieved.

Description

technical field [0001] The invention belongs to the technical field of glass production and testing, and in particular relates to a device and method for measuring high-temperature conductivity of glass melts. The device is suitable for rapid measurement of the conductivity of glass melts with different viscosities. Background technique [0002] Generally, glass is a very good insulator at room temperature. At high temperature, the mobility of alkali metal ions contained in it is greatly improved compared with that at room temperature, so it presents a lower resistivity. However, there is no standard method for measuring the electrical conductivity of high-temperature molten glass in the world. [0003] In the existing high-temperature molten glass conductivity testing device, an observation window is arranged on the high-temperature furnace, a scale line is engraved on the pot wall of the transparent quartz crucible, and an electrode is connected respectively on both sides ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the inaccurate data measurement of the relative area between the two electrode sheets existing in the prior art, resulting in low accuracy and poor reproducibility of the measurement results of the conductivity of the molten glass, and the universality of the measurement device In view of the shortcomings of poor performance, a device and method for measuring the high-temperature conductivity of glass melts with compact structure, simple principle, high accuracy, strong stability, and the ability to test the conductivity of different types of glass melts at different temperatures is provided.

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