The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Jan. 13, 2010
Ulrich Severing, Kirchheim, DE;
Bernd Eppli, Koenigsbronn, DE;
Lutz Krodel-teuchert, Camburg, DE;
SHW Casting Technologies GmbH, Aalen, DE;
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 () of the roller body () made of grey cast iron (GJS, GJV) and, around the interior zone (), a circumferential rim zone () which includes the outer circumference of the roller body () and exhibits a surface hardness which is greater than 400 HV, wherein the circumferential rim zone () 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.