WEBCON Inc.Rounded Uhle Box Lips
Rounding off of the surface of the lips of Vacuum Slots in a paper machine to create an intimate contact with the felt. This will
Improve paper CD uniformity, due to even suction across.
Reduce felt wear, by reducing contact stresses with the lips.
AREAS OF APPLICATION
The problem is modeled as a taut felt subject to lateral vacuum pressure,
and solved numerically for
1. Dimensions of the existing set-up, including end plugs.
2. Operating Vacuum
3. Felt Tension, pli or kN/m.
4. Vacuum, psi or mm Hg.
5. Felt Spec. or a small sample.
AutoCAD drawing of the surface profile of the redesigned lip and the end plugs, plus instructions.
Although conformal lips have been designed for a number of paper machines, performance data has not been made available.
The fact that request for a second and a third machine was made by the same mill indicates the success of the design.
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