Abstract: The invention discloses a bamboo chip integrated material. The bamboo chip integrated material is formed by a plurality of lengthened bamboo chips which are glued and overlaid; each lengthened bamboo chip is formed by a plurality of bamboo chip units which sequentially and continuously mesh and are butted; sharp teeth and grooves are formed in the two ends in the length direction of the bamboo chip units, wherein the sharp tooth of each bamboo chip unit and the groove of the corresponding bamboo sheet unit are matched to form a meshing butt-joint part, and the meshing butt-joint parts of the adjacent lengthened bamboo chips are arranged in a staggered mode; and each bamboo chip unit has a thickness of 4-12 mm and a width of 15-50 mm.

Abstract: A device for successively transporting sheets in a platen press includes gripper bars with respective ends fixedly attached to two flexible of endless loop elements. Each loop element is engaged respectively with an intermittent drive wheel and at least one free wheel. A rectangular working chase and a movable platen arranged on both sides of the path of the grippers of the said bar. Nozzles are connected to a compressed air supply, for directing air jets towards the movable platen during a stopping phase of the gripper bars, in order to successively stop the sheets between the working chase and the movable platen. The nozzles are located below the transverse rear edge of the working chase.

Abstract: A method and an arrangement for manufacturing calendered paper or board particularly in the on-line manufacturing method. In the method, a base web is formed from a mixture of water and pulp supplied from the headbox and the web is dried by removing water over the press section and over the dryer section by heating. The formed web is calendered at least once to modify the surface on at least one of its sides. Before calendering the cross-direction thickness profile of the web is standardized and calendering is carried out by means of a long-nip calender, whereby good surface quality is obtained without losing the bulk or stiffness of the web.

Abstract: A method and an arrangement for manufacturing calendered paper or board particularly in the on-line manufacturing method. In the method, a base web is formed from a mixture of water and pulp supplied from the headbox and the web is dried by removing water over the press section and over the dryer section by heating. The formed web is calendered at least once to modify the surface on at least one of its sides. Before calendering the cross-direction thickness profile of the web is standardized and calendering is carried out by means of a long-nip calender, whereby good surface quality is obtained without losing the bulk or stiffness of the web.

Abstract: A continuous belt press has upper and lower platens defining a horizontal gap. Upper and lower upstream drums and downstream are rotatable on the frame about respective horizontal drum axes at the upstream and downstream ends of the gap. Upper and lower endless steel belts spanned over the respective upper and lower drums each have a working stretch supported by respective upper and lower sets of rollers on the respective platens. Each belt has a pair of edges projecting transversely past the respective rollers and at least one of the drums of each of the belts has a substantially cylindrical central region of a predetermined central diameter bearing through the respective rollers on the working stretch of the respective belt and a pair of edge formations of smaller diameter than the central-region diameter lying outside the central region and in engagement with the edges of the respective belt.

Abstract: A machine for manufacturing corrugated board that includes a row of pressure applicators aligned substantially transverse to the direction of machine flow and configured to press a web of corrugated board against a heated platform. To prevent the pressure applicators from tilting when incompletely overlying the web of corrugated board, the machine includes a stabilizer configured to prevent one or more of the pressure applicators from tilting. The stabilizer may include support plates connected to the pressure applicators and a stabilizer strap connecting two of the support plates to prevent the pressure applicator from tilting. Alternatively, the stabilizer may include support plates connected to the pressure applicators and one or more alignment members to prevent the pressure applicator from tilting. The alignment members may be alignment blocks or rollers.

Abstract: A calendering method and calender in which a web material is passed through a calender, the calender being defined by two rolls having resilient roll coatings and being loaded towards each other so that due to the resilient nature of the roll coatings an extended nip is defined. Each of the calendering rolls being covered by a flexible calendering belt that is non-compressible in comparison to the roll coatings and each of the calendering belts being formed into a endless loop by passing over a respective alignment or reversing roll.

Abstract: A laminating heating module for use in a flatbed laminating machine. The heating module comprises an elongate body portion with at least one heating pad attached thereto. The heating pad is fabricated from silicone rubber and includes three separate heating zones for regulating the heat to the body portion. Attached to each heating zone of the heating pad is a respective thermocouple to control the temperature of each heating zone. The heating module further comprises a thermostat attached to the heating pad and operative to protect the temperature of the body portion of the heating module from overheating.

Abstract: A heating device (1) for a corrugated cardboard installation includes several heating plates (3), arranged successively in the direction of advance of a corrugated cardboard web (2). Heating device (1) also includes at least one pressure unit (5), consisting of a bearing (6) arranged diagonally or transverse with respect to the direction of advance of the corrugated cardboard web (2). At least one pressure element (7) is attached to the bearing (6). The pressure element (7) is connected with the bearing (6) in a freely movable manner via at least one elastic medium (11). The elastic medium transfers the weight of the bearing (6) to the pressure element (7).

Abstract: A continuous press for pressing a thick mat into a thin panel has a press frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal transport direction, upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream, and a plurality of hydraulic actuators braced between at least one of the intake plates and the frame and operable to deform the one intake plate and thereby change the spacing of the belts at the mouth. A desired shape of the one intake plate at the mouth is established in accordance with the thickness of the mat, the density of the mat, and the thickness of the panel.

Abstract: A continuously operating press is described for the manufacture and/or coating of board webs consisting of a fleece or mat in which the press belts are supported on a lubricant film formed on a slide lining. For the marginal width adjustment of the press zone the slide linings are subdivided into a main zone and adjoining marginal strip zones respectively. In one embodiment of the invention transition zones are in each case provided between two of these slide lining zones and are either made groove-free or provided with blind grooves, which serve neither as supply nor as discharge for lubricant. In a further embodiment of the invention adjacent grooves in these slide lining zones are alternatively provided with supply and discharge openings for the lubricant.

Abstract: A continuously operating press for the production of particleboards, fiberboards or similar wooden-material boards and plastic sheets allows for the free longitudinal expansion or contraction of the press heating plates by having a press force frame structure of individual press frames positioned between support carriers and mounted on sliding members on the lower support carriers. The sliding members are designed as rolling wheel segments that are assigned to each individual frame of the press force support structure.

Abstract: A machine and method for manufacturing corrugated board, including several machines for applying heat to both sides of the corrugated board during the manufacturing process. Different types of heat exchangers may be used on the top and bottom sides of the moving surface to transfer sufficient heat to the moving surface, to remove moisture and to cure the adhesive of the corrugated board. Independently controlled heat exchangers enable the manufacturer to regulate the heat applied to the corrugated board across the width of the machine and in the direction of the machine flow, in response to varying the desired width and thickness of corrugated board. Unused areas of the hotplate section may be isolated to minimize the heat loss in the machine when narrow width corrugated board is manufactured.

Abstract: A method of controlling the press force on at least one press heating plate along the press length of an operating cycle. For a reduction of specific press force from a maximum press force towards a zero press force, a setting force for a longitudinal deformation of the at least one press heating plate is increased accordingly. For an increase in the specific press force from a zero press force towards a maximum press force, the setting force for the longitudinal deformation of the press heating plates is reduced accordingly. For a reduction of the specific press force from the maximum press force towards the zero press force, the longitudinal gradient tan .beta. is set to be approximately twice as large as the gradient tan .alpha. at the press force maximum. The longitudinal gradient and setting force can thus be controlled along an entire pressing path for an increase or decrease in the specific press force.

Abstract: A heat transfer system in which a continuous web of material (13, 14) is carried past a hot plate surface (12) with one face of the web in contact therewith, and a series of fluid-filled vessels (15) above the web to apply a load on the upper surface thereof to maintain uniform contact between the web and the hot plate surface irrespective of any undulation thereof. A transport section to convey the web past the hot plate surface comprises upper and lower traction belts (16, 17) disposed entirely beyond the end of the hot plate surface (12) with a fixed plate (18) beneath the lower belt (17) and a series of fluid-filled vessels (19) above the upper belt (16) which serve to maintain adequate drive contact between the belts (16, 17) and the web (13, 14).

Abstract: An apparatus and method for applying variable pressure to a moving surface, such as a moving web of corrugated paperboard. The apparatus includes a frame secured to a fixed structure and located proximate to a heated platform. A number of pressure applicators having movable pressure-applying feet are mounted on the frame. The moving surface moves between the heated platform and the feet of the pressure applicators. The pressure-applying feet are movable in a direction substantially perpendicular to the moving surface. This allows the pressure-applying feet to press the moving surface against the heated platform as the moving surface moves between the heated platform and the feet of the pressure applicators. Each pressure applicator may be independently controlled, typically by an inflatable air bladder, to apply variable pressure to the moving surface.

Abstract: A continuously operating press includes a press ram, a press table, flexible, endless steel bands which draw in a pressable material and transmit press pressure to the pressable material, drive and, deflecting rollers for guiding the steel bands around the press table and the press ram, upper and lower heating plates disposed between the press ram and the press table and between which a press nip is defined, and press cylinder-piston arrangements for adjusting the press nip. Tensioning brackets which are connected to the press table have openings within which the press cylinder-piston arrangements are received. Further, short-stroke cylinder-piston arrangements are arranged transversely with respect to the pressing path and beneath the lower press heating plate to permit a concave or convex deformation in the transverse direction.

Abstract: A fluted or honeycombed profile on the rear side of the pressing stock or rolling side of the heating/press platens, which profile enables an increased flexible, two-dimensional deformation, in a longitudinally and transversely controlled manner, in just a few seconds in the on-line control process while providing larger support spacings. The fluted profile along the whole of the pressing zone advantageously increases the elastic bending deformability in the transverse direction, while, as a result of the honeycombed profile, an increased flexibility longitudinally to the pressing zone is attained. As a result of the fluted profile longitudinally to the pressing zone, the two-dimensional, spherical flexibility of the press/heating platen is substantially increased, so that use is preferably made of this fluted profiling.