Metso Paper Inc.

Valmet Corporation

Rob Stapels

Markku Kyytsönen

Harri Kuosa

Reijo Pietikäinen

Jani Yli-Alho

Vesa Ijas

Tony Lehto

Jouko Meronen

Markku Kirvesmaki

Risto Vainio

Timo Brander

A load measuring device for measuring a load acting on an elastically deformable member, has a distance sensor for measuring a length change in response to a deformation of the deformable member under a load. The sensor has a sensing element and a reference element arranged such that a portion of the elastically deformable member is interposed between the sensing element and the reference element. For paper manufacturing or finishing, two members between which the load is measured are cooperating rolls, at least one of which is provided with an elastic cover. One of the rolls includes the sensing element and the other roll includes the reference element. Alternatively, the two members are a roll and a cooperating belt, one having an elastic cover. Also, the sensing element and the reference element may be formed in one and the same member.

Load measuring device, manufacturing method for the device and control method using the device

A paper machine roll, in particular for a soft calender or supercalender, which includes a metal frame, roll ends, and shafts. The frame is coated with a polymer coating over at least a middle area or central region thereof while lateral regions may optionally remain uncoated. In order to equalize a difference in temperature between the roll ends and the optionally non-coated lateral regions of the metal frame, on one hand, and the coated central region area of the roll, on the other hand, an arrangement for equalizing the difference in temperature is provided by heating the roll ends and the optionally non-coated lateral regions of the metal frame.

Paper machine roll with heated ends in a soft calender or supercalender

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Jäniksenlinna, Finland

Rob Stapels