Suction roll seal strips with teflon insert

Details Suction roll seal strips with teflon insert Suction roll seal strips with teflon insert

1986-12-18

1987-12-22

Chin, Peter

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162369, 162374, D21F 310

Patent

active

047145234

ABSTRACT:
Sealing strips mounted on an internal vacuum box and engaged with the internal surface of a perforated rotatable shell forming a suction roll in a conventional paper making machine are contructed from a body portion of organic material having an outer surface forming an interface with an inner surface of the shell, and a PTFE inlay strip exposed at the outer surface of the sealing strip for rubbing against the interior surface of the shell and smearing across the outer surface of the sealing strip to reduce friction and improve lubrication at the interface.

REFERENCES:
patent: 2578551 (1948-03-01), Hornbostel

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