Abstract: Compression-resistant heating frame, comprising an upper plate and a lower plate which are secured to each other, and a heating layer interposed between the two plates. Force-absorption studs are disposed between the two plates in order to protect the heating layer against deformation by compression of the plates against each other. The studs are distributed to permit regular heating of each plate. The force-absorption studs are distributed at the nodes of a rectangular, hexagonal or centered square network. The force-absorption studs preferably include a flange to distribute the compression force on a metal base sheet which is interposed between the upper plate and the heating means. Thermal insulation material is interposed between the heating layer and the upper plate. The heating layer may comprise a film through which an electric circuit passes in order to produce heating by joule effect.

Abstract: A device for heating a roll in a paper or paperboard machine or in a finishing machine for paper or paperboard the device including a profiling induction heater (5) which is arranged to heat the roll (3) with a power dependent on the location of the point to be heated in the axial direction of the roll, and a non-profiling induction heater (4) which, to provide basic heating, is arranged to heat the same roll (3) with a heating power which is substantially even over the width of the roll (3). The profiling induction heater (5) and the non-profiling induction heater (4) are placed in the same support structure (1) outside the roll (3). The roll (3) is a calender roll.

Abstract: The hooking system of the lid (4) to the sliding plate comprises grooves (27) provided in the heating ceramic plate (11), to accommodate rails made of refractory steel. These rails (26) enable on the one hand to fix the ceramic plate (11) below the metal plate (10), via tension rods (14) and, on the other hand, to hook the lid (4), using H-section parts (22) that nest into T-shaped grooves (25) of the said rails and in identical T-shaped grooves provided opposite to one another in the upper section of the lid (4).

Abstract: A thermal bonding method wherein at least two members are thermally bonded to each other with an adhesive by pressing and heating a laminate formed by laminating at least two members on each other with the adhesive interposed therebetween, comprising placing at least one member of the laminate close to a heated radiation heater and pressing the laminate in a radiation heat-applied state; and an apparatus comprising a radiation heater, a supporting member for supporting the laminate with at least one member of the laminate placed close to the radiation heater, and a pressing unit adapted to approach, contact and press the laminate supported by the supporting member and then move away from the laminate to stop applying a pressure to the same.

Abstract: A continuous, multiple-stage process for thermally treating the surface of friction linings by pressing them against heated units and cooled units. The total length of the transport and pressing phases of each stage taken together corresponds to the continuous production cycle of the linings. The scorching press for carrying out the process is made of modules, so that heated and cooled units may be easily exchanged for each other. A heat insulation reduces energy tosses and keeps constant the surface temperature of the heated units.