Roll having a composite cover
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United States of America Patent
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-
Aug 13, 2002
Grant Date -
N/A
app pub date -
Apr 3, 1997
filing date -
Apr 4, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The problems caused by chemical and thermal shrinkage of hard roll covers, are reduced by the inclusion of one or more intermediate compressive layers between a roll core base and cover. The compressive layer has the properties of being rigid enough to allow the cover to be applied to the roll, and compressible enough to deform and absorb the stresses which occur as the cover is shrinking during processing. In one embodiment, the compressive layer is separately cast with the cover over a disposable inner mold so as to form a composite roll cover. The composite roll cover is fitted over a roll core base and the resulting circumferential cavity is then filled with a thermoset resin.
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