Metso Paper Inc.

Stora Enso Oyj

Savcor Process Oy

Pekka Kylliainen

Isto Heiskanen

Seppo Karine

Kirsi Partti-Pellinen

Kari Raisanen

Martti Pulliainen

Mikko Vepsalainen

Jukka Rautiainen

Matti Hakkinen

Ari Johansson

Jyri Jarvi

The invention relates to an arrangement in connection with the press section of a web-forming machine. The arrangement includes at least one press nip for dewatering the web manufactured on a web-forming machine. The arrangement also includes a smoothing press including a smoothing roll arranged after the press nip. The smoothing press includes smooth heat carrying devices arranged as a loop around at least two guide rolls. The smoothing roll is arranged into contact with the devices between two guide rolls. The smoothing roll and/or at least one of the guide rolls is a steam heated drying cylinder or a steam heated roll modified thereof. The invention also relates to a board or paper produced in such arrangement.

Board or paper produced in an arrangement in connection with the press section of a web-forming machine

The invention relates to a method in the wet end of a web forming process. In the method, at least one electrode pair () is placed in the wet end. The electrode pair () is supplied with a current/voltage from a power source (), so that an electric field is set up between the electrode pair (), causing the material particles in the pulp suspension in the wet end to be electrically charged in a desired manner and to move in a desired manner in the pulp suspension in the wet end. The current/voltage of the power source () is controlled by means of a measuring and control unit () so as to cause the material particles in the pulp suspension to be electrically charged and to move in a desired manner, thus allowing the retention, formation and orientation of the material particles in the pulp suspension to be substantially improved.

Method for use in the wet end of a paper machine, cardboard machine or an equivalent web forming machine

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Imatra, Finland

Pekka Kylliainen