Method of Viscosity Measurement Using a New Oscillating-Plate Type Viscometer for High Tempertature Material and its Application to Quality Control of Mold Flux in Continuous Casting Process
Masatoshi TOKUDA, Tetsuya HIROTA, Toshiyuki YAMAMOTO, Masakazu ICHII
A new oscillating-plate type viscometer, which makes instant and continuous measurement of viscosity for high temperature material possible, is developed and utilized. This viscometer is designed for industrial use, and viscosity can be measured automatically with high accuracy and easy operation. The measured value of viscosity is evaluated by using mold flux in continuous casting process, and it is verified that proper control of viscosity and primary crystallization temperature for mold flux yields continuous casting products of good quality and prevents troubles in casting. This method of viscosity measurement is currently used in various areas such as the examination of newly received mold flux, the selection of optimum fluidity characteristics for various casting conditions, and the development and the improvement of mold flux.