Method for manufacturing a thermoroll for a paper/board machine or a finishing machine
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United States of America Patent
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Mar 23, 2004
Grant Date -
Sep 25, 2003
app pub date -
Mar 4, 2003
filing date -
Mar 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermoroll for a paper/board machine or a finishing machine, the thermoroll having a shell of metallic, ceramic or composite material, and the shell having ducts for passing a heating medium from one axial end of the thermoroll to the other axial end of the thermoroll. The shell is made by casting or by powder metallurgical methods, and the ducts are formed in the matrix material of the shell which is metal and/or ceramic.
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