Overview

Viscosity is a measure of the internal friction of fluid materials, and is one of the important physical and chemical indicators of fluid materials. In the field of compounding rubber, viscosity measurement is an important means to control the production process, ensure product quality, and save and develop energy. At present, there are many common methods for measuring viscosity: standard measuring cup measurement method, rotating method, falling body method, flat plate method, etc.

Working principle

The standard falling time of the hammer in the glue is used to measure the viscosity. The falling speed of objects of equal weight and equal volume in the glue liquid and the shear flow caused by the relative movement are calculated to obtain the glue viscosity. The principle is the same as the viscosity cup used on site. Measuring a principle, the higher the viscosity, the longer the falling time, and the smaller the viscosity, the shorter the falling time. When the falling time exceeds the number of seconds of viscosity we set, the pneumatic ball valve on the solvent tube automatically opens to add solvent until the viscosity value is lower than Set the value to ensure the glue viscosity.

Configuration

Main configuration:

1. standard drop hammer (internal)

2. lifting cylinder

3. mounting rod

4. drop hammer connecting rod

5. level

6. Mounting seat

7. detection sensor

Precautions:

A. After use, the falling weight viscometer needs to be cleaned with a solvent to prevent the glue from solidifying and causing the falling weight to fail to lift, which will affect the normal use of the next falling weight viscometer.

B. When installing the falling weight viscometer, ensure that it is upright so as not to affect the accuracy of the measured viscosity.

Advantages

Falling hammer viscometer uses the same principle as measuring cup measurement. However, the drop-weight viscometer can effectively reduce the impact of the pungent odor of glue on workers when the measuring cup is used to measure the viscosity on site.