Roller body for a roller for treating a material and method of manufacturing a roller body
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United States of America Patent
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Apr 1, 2014
Grant Date -
Jul 15, 2010
app pub date -
Jan 13, 2010
filing date -
Jan 14, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A roller body for a roller for treating a material, preferably a web material, which is cast from an iron base alloy which forms a radially interior zone (5) of the roller body (1) made of grey cast iron (GJS, GJV) and, around the interior zone (5), a circumferential rim zone (6) which includes the outer circumference of the roller body (1) and exhibits a surface hardness which is greater than 400 HV, wherein the circumferential rim zone (6) consists of ribbon grain or superfine ribbon grain pearlite (P) with embedded free graphite, preferably spheroidal graphite (SG) or vermicular graphite (V), or of an intermediate structure (ADI) with spheroidal graphite or vermicular graphite.
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