Dimensionally stabilized roller body

Details Dimensionally stabilized roller body Dimensionally stabilized roller body

2005-06-21

2005-06-21

Jimenez, Marc (Department: 3726)

Roll or roller

Single annular member, per se

Specific metallic composition

C029S895000

Reexamination Certificate

active

06908420

ABSTRACT:
A roller body for a roller, for pressure-treating or temperature-treating or combined pressure- and temperature-treating a web-shaped medium, for example paper, includes a casting body made of an iron-based alloy comprising graphite lamellae. Particular regions of the roller body are placed under tensile stresses during or after production. The stresses being applied are larger than those which occur in these regions during operation of a roller. The additionally applied tensile stresses trigger local plastic deformations in peripheral regions of the graphite lamellae, such that once the tensile stresses are no longer applied, the roller body behaves elastically and no longer permanently deforms up to the stress level achieved.

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English Translation of the German Search Report from German Priority Application No. 101 64 344.6, dated Aug. 7, 2002.
E. Nechielberger, Leoben Temperature Creep and Stress Dependency of the E-module of Cast Iron Materials; Austrian Engineer's and Architect's Journa, Issue 1, vol. 130 (1985); pp. 1-36; (German language document and English-language translation portions thereof).

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