Device and method for rapidly measuring viscosity of high-temperature melt by using free vibration method of spring oscillator

Abstract

The invention relates to a method for rapidly measuring the viscosity of a high-temperature melt by using a free vibration method of a spring oscillator. In a casting process, the structure of liquid metal has important influence on the structure and the performance of a solidified metal because of the genetic effects of the metal. The device for rapidly measuring the viscosity of the high-temperature melt by using the free vibration method of the spring oscillator comprises a blade oscillator (1) which is connected with one end of a connecting rod (2), a spring (3) is sleeved on the connecting rod (2) to be connected into a whole, the other end of the connecting rod (2) is connected with a permanent magnet (4), a coil (5) is sleeved on the outer ring of the permanent magnet, is in a size larger than the outer ring size of the permanent magnet and is connected with a signal amplification processor (6) which is connected with a computer (7), and the blade oscillator extends into a crucible (8). The invention is used for measuring the viscosity of the high-temperature melt.

Description

Technical field: [0001] The invention relates to the field of metallurgy and casting, in particular to a device and method for quickly measuring the viscosity of high-temperature melt by a free vibration method of a spring vibrator. Background technique: [0002] Studies have shown that viscosity is an important macroscopic manifestation of the microstructure of the melt. During the casting process, due to the genetic effect of the metal, the structure of the liquid metal has an important impact on its solidified structure and performance. In addition, the viscosity of liquid metal also marks its fluidity, which not only affects the filling process, but also an important factor affecting the floating of small bubbles and non-metallic inclusions in the melt. Therefore, the measurement of viscosity has very important practical significance for the scientific research and casting production of metal materials. [0003] High temperature melt viscosity detection is developed on ...

AI Technical Summary

Problems solved by technology

However, since the test device designed by basic methods such as the capillary method, torsional vibration method, falling ball method and rotation method needs to collect small physical quantities such as the natural flow time of the liquid or the torsion angle of the hanging wire, the falling time of the ball and the speed change, the test equipment is required to be very precise. The application has very strict requirements on the working environment, especially for high-temperature melt viscosity detection. Under the special conditions of high-temperature working environment, many test methods are limited to a certain extent in the real-time detection of industrial production sites.

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