| 摘要 |
PURPOSE:To evaluate accurately a viscosity prior to the kneading by suspending the ceramic powder to be used into a prescribed testing solvent by a prescribed ratio to obtain the slurry, and measuring the flowing down time thereof by using a testing funnel. CONSTITUTION:The testing funnel consists of a slurry storage part 1 capable of storing a fixed quantity of the slurry, and a narrow under hole 2 for slurry drainage. The ceramic powders of different lapses of days after the pulverization and different grain sizes are used, these various powders are suspended into the testing solvent to obtain the testing slurry, and the flowing down time thereof is measured by using said testing funnel. By such a method, the viscosity of the kneaded material can be evaluated almost accurately. |
