Dimensionally stabilized roller body

Details Dimensionally stabilized roller body Dimensionally stabilized roller body

D - Textiles, Paper

21

G

D21G 1/02 (2006.01) B21K 1/02 (2006.01)

Patent

CA 2413701

A roller body for a roller, for pressure-treating and/or temperature-treating a web-shaped medium, for example paper, wherein said roller body is 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, said stresses being larger than those which occur in these regions during transport or operation of a roller, wherein 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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