- Anti-vibration compound
An anti-vibration compound is a temperature-resistant mixture of a liquid with fine particles, which is used to reduce vibrations in
calender rolls and to dampenvibration s in fabricated structures like machine beds and housings.Use
Vibration may limit the performance of a calender or
paper machine . It can have numerous sources such as bulk variations in the sheet, bearing problems, or misalignment of thedriveshaft . Vibration manifests itself as a high frequency periodic movement of the roll body with an amplitude from less than one to several µm.When anti-vibration compound is introduced to the center bores of the rolls, vibration is transferred from the solid roll structure to the incompressible
fluid component of the anti-vibration compound. Its solid particles are less mobile due to theirinertia . Thus the fluid is forced to oscillate around the solid components. The flow energy is absorbed by micro eddies by which the vibration is damped.The benefits are a smoother running with increased operating speed and production, longer operating times of the
polymer covers between re-grindings and improved product quality due to the reduction of barring.
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