Elastic roller, method for producing same device for smoothing paper and method for smoothing paper
AssigneeVoith Sulzer Papiertechnik Patent GmbH
InventorPatrick Villiger
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Abstract
The present invention concerns an elastic roller for smoothing a paper web, wherein the roller has a hard metal core, an elastic matrix coating material thereon and an outer layer of memory metal, and is comprised especially of metal is described. The present invention also relates to a method for producing the elastic roller and to a device and method for smoothing paper comprising passing a paper web through a pressure nip formed by the elastic roller core and a hard roll.
Claims38
A roller for smoothing a paper web comprising:
- a hard metal roller core;
- an elastic coating layer coated upon the roller core, the elastic coating layer comprising an elastic matrix material;
- and
- a memory metal layer covering an outer side of the elastic layer.
A roller for smoothing a paper web comprising:
- a hard metal roller core;
- an elastic coating layer coated upon the roller core, the elastic coating layer comprising an elastic matrix material with at least one filler embedded therein;
- and
- a memory metal layer covering an outer layer of the elastic coating layer, wherein the memory metal layer is deformable and is adapted to return to an original shape.
A device for smoothing a paper web comprising:
- an elastic roller which comprises a hard metal roller core, an elastic coating layer, including an elastic matrix material, coated upon the roller core, and a memory metal layer covering the elastic coating layer;
- a hard roller;
- and
- a pressure nip formed between the elastic roller and the hard roller, wherein the memory metal layer is deformable and adapted to resume its original shape.
A method for smoothing a paper web comprising
- forming a pressure nip between an elastic roller and a hard roller, the elastic roller comprising a hard metal roller core, an elastic coating layer, including an elastic matrix material, coated upon the roller core roll, and a memory metal layer covering the elastic coating layer, wherein the memory metal layer is deformable and adapted to resume its original shape;
- and
- passing the paper web through the pressure nip, whereby the paper web is smoothed.
A roller for smoothing a paper web comprising:
- a hard metal roller core;
- an elastic coating layer coated upon the roller core, the elastic coating layer comprising an elastic matrix material with at least one filler embedded therein;
- and
- a memory metal layer covering an outer layer of the elastic coating layer, wherein the memory metal layer is deformable and is adapted to return to an original shape,
- wherein the memory metal layer comprises a plurality of metals.
Dependencies are inferred from the claim text.