Voith Sulzer Papiertechnik Patent Gmbh

Voith Sulzer Papiermaschinen Gmbh

Voith Paper Patent Gmbh

Guenter Halmschlager

Walter Holzer

Udo Grossmann

Christoph Haase

Herbert Haunlieb

Alexander Wassermann

Peter Haider

Erich Brunnauer

Martin Vogt

Karl Steiner

Eduard Bachler

A wire section in a machine for the production of a fiber web including at least one twin wire former including a revolving continuous inner wire and a revolving continuous outer wire that converge in the area of a forming roll. After the forming roll, viewed in the direction of web travel, and inside the loop of the inner wire and inside the loop of the outer wire at least one additional strip element is located.

Wire section

The invention relates to a device for cutting off and conveying strips, for a machine. The device is used for producing a continuous web, especially of paper or card, for a threading strip, and has a knife. Finally the device is characterized in that it has it least one (preferably driven) guiding roll ( ) which can be brought into engagement with the threading strip ( ).

Device for cutting off and conveying streaks and method for cutting off and transferring a threading streak

Process for homogenizing the property cross direction profile of a continuous web made of paper or cardboard and a paper machine that is suitable for carrying out the above-mentioned process. The process is characterized in that the shrinkage cross direction profile of the material web is homogenized during its manufacturing process by controlling the local composition of the stock suspension sectionally across the width by changing the proportions of components that have different shrinkage behaviors. The paper machine includes an approach flow system having at least two regions that produce different stock suspensions with fiber mixtures that have different shrinkage behaviors. The stock suspension supplies from the approach flow system to the headbox have at least two branches for the at least two different stock suspensions. Near the headbox, a plurality of sectional mixing points are provided, which combine the stock suspensions that have different shrinkage behaviors. Paper is produced from the process and device.

Process for improving the shrinkage cross direction profile and paper having an improved cross

Dryer section of a machine for at least one of producing and processing a web of material. The dryer section includes at least one heatable drying cylinder having a circumference, at least a part the circumference adapted to be surrounded by the material web, at least one support band arranged to surround the at least a part of the circumference, and a sealing band arranged to surround the at least a part of the circumference. An overpressure cap is arranged to receive one of a liquid and gaseous medium and is adapted to apply a pressurized one of the liquid and gaseous medium on the at least one drying cylinder. A temperature of the medium is lower than a temperature on an outside of the part of the circumference. At least one second support band is arranged around the at least one drying cylinder and is positioned between the at least one support band and the sealing band, wherein the at least one second support band has a coarser structure than the at least one support band.

Dryer section

Apparatus and process for manufacturing or treating a material web that includes at least one heatable cylinder and a combustion unit. The combustion unit is adapted to heat the at least one heatable cylinder with at least one of combustion gases and infrared radiation and the material web is adapted to be guided one of alone and with a transport belt over the at least one heatable cylinder. The apparatus also includes at least one blower box positioned to direct a hot gas onto the material web. The hot gas is at least one of the combustion gas and heated by the combustion gases. The process includes heating the at least one heatable cylinder with at least one of combustion gases and infrared radiation of the combustion unit, guiding the material web, one of alone and with a transport belt, over the at least one heated cylinder, and directing a hot gas from the blower box onto the material web, the hot gas being at least one of the combustion gas and heated by the combustion gases.

Growing community of inventors

Krems, Austria

Guenter Halmschlager