Voith Patent Gmbh

Alexander Etschmaier

Franz Grohmann

Antje Berendes

Hubert Bischof

Johan Einarsson

Norbert Gamsjäger

Michael Wokurek

Jürgen Angerler

Wolfgang Peter Mayr

Hasso Jungklaus

Gamsjäger Norbert

Goar Hesselmann

Sebastian Sperling

A heatable roller suitable for a machine for producing and/or upgrading a web of material, in particular a fibrous material web such as a paper, paperboard or tissue web. The roller has a main element with a metallic and cylindrical roller wall which is heatable by suitable means and on the radially outer side of which there is, at least in sections, a coating. When the roller is used as intended, the coating provides a web contact side which can be brought into contact with the web of material. The coating includes, or is formed by, at least one metallic or metal-carbidic layer with a first layer component providing a matrix and a second layer component distributed in the matrix. The first layer component has a higher abrasion resistance than the second layer component and the second layer component has a greater thermal conductivity than the first layer component.

Roller with coating

A roll for use in a machine for producing and/or further processing a fibrous web, such as a paper, paperboard, or tissue web, includes a roll cover having at least some sections or regions formed of a metal material and a coating formed on the roll cover. The coating is formed of a metal, ceramic and/or cermet material, or at least some sections or regions of the coating include one of those materials. An alloy region is situated between the roll cover and the coating.

Roll

A roll for use in a machine for producing or finishing a web of fibrous material, such as a paper, paperboard or tissue web, has a roll core. At least one bonding layer is formed thereon and at least one ceramic layer is formed on the at least one bonding layer. The at least one ceramic layer at least partially is formed of an oxidic compound in the form of a mixed-oxide ceramic.

Roll and method for producing a roll

A method for applying a corrosion-protective coating to a roller component includes the steps of providing a device for thermal spray coating, providing a stainless steel material, coating at least one part of the surface of the roller component by applying the stainless steel material using the device for thermal spray coating and sealing the applied coating by a polymer material.

Corrosion-resistant roller coating

The invention relates to a doctor blade for the surface treatment of fibrous nonwoven webs, including a main body and a coating arranged on the surface of the main body, wherein the coating covers at least the part of the surface of the main body on which the doctor blade is provided for contact with the fibrous nonwoven web, and wherein the porosity of the coating is less on the first surface adjoining the main body than on the surface arranged opposite thereof.

Blade coating

A combination of a press felt with a pressure and/or suction roll covering for a papermaking machine, including a porous press felt with a carrier structure. The pressure or suction roll covering having a circumferential groove surface structure having a groove width in the range of 0.5 mm to 1.5 mm, a distance between grooves in the range of 1.5 to 2.5 mm and a groove depth in the range of 1.5 mm to 4 mm. A percentage of an open surface relative to an overall surface of the pressure roll covering is in a range of 20% to 50%. The suction roll covering additionally having an arrangement of holes with a plurality of suction holes completely penetrating through the suction roll covering, whereby a percentage of an open surface in relation to an overall surface of the suction roll covering is in a range of 30% to 50%.

Growing community of inventors

Neuberg, Austria

Alexander Etschmaier