Abstract:
A single facer which includes a rotating corrugating roll for corrugating a medium; an endless belt for pressing a liner against the medium on the corrugating roll; at least a pair of belt rolls for running the endless belt; and a direction adjusting mechanism for changing the running direction of the endless belt with respect to the rotating shaft of the corrugating roll within the running plane of the endless belt to correct zigzag or sideway motion of the belt occurring while the belt is running; a detector for detecting sideway displacements of the endless belt; a computer for computing a positional correction to be made in the width direction based on a signal from the detector; and a controller for controlling the direction adjusting mechanism based on a value computed by the computer. In addition to the adjustment of the running direction of the endless belt, a tension balance between the opposite edges of the endless belt can be corrected by adjusting the relative angle between the shafts of the belt rolls.
Abstract:
Multi-layered film consisting of at least an inner layer (3) and an outer layer (2), with an intermediate layer (4) provided in between, whereby at least the inner and the outer layers (2-3) consist of a homopolymer of polypropylene and/or a copolymer of polypropylene, and whereby the intermediate layer (4) contains at least a mixture of a homopolymer of polypropylene and/or a copolymer of polypropylene with a thermoplastic elastomer, characterized in that the film (1) has a haze of 5% or less.
Abstract:
An apparatus and a device for metal-coating a slotted woodfibre board with a sheet laminate continuously both in elongate slots in the board and on the surfaces of the board between the slots. The board is advanced in a direction transverse to the longitudinal direction of the slots by means of a horizontal conveyor on a supporting structure, sheet laminate material is fed continuously from a sheet laminate feed device, a rotatable roller secured to the supporting structure and immediately above the conveyor is rotated so that the roller surface, on rotation of the roller, follows the surface of the board that is advanced on and by the conveyor and presses the sheet laminate material against the board, and the rotation of the roller is driven so that at least one elongate projection arranged in the longitudinal direction of the roller is positioned synchronously with the slot and presses the sheet laminate into the slot. An underlying adhesive layer is heated to the melting point of the adhesive layer. By subsequent cooling of the metal layer, thermal deformation of the coated board is avoided.
Abstract:
A process for preparation of a tufted polyamide-type fiber carpet is provided. A primary backing tufted with yarn comprised of at least 85% by weight of fibers selected from the group nylon fibers, wool fibers, and blends thereof is provided. A molten polymer adhesive is provided on the back side of the tufted primary backing, the polymer adhesive consisting of at least 85% by weight of one or more ethylene copolymers each comprised of 50 to 95 weight % of ethylene, and 5-50 weight % of at least one comonomer selected from the group of esters and carboxylic acids. The tufted primary backing and the molten polymer adhesive layer are compressed under a moving belt that applies a pressure of at least 1 N/cm for a period of at least 5 seconds during which time the polymer adhesive remains in a molten state. The molten polymer adhesive then cooled to a temperature below the melting point of said molten adhesive. A secondary backing may be placed over the molten polymer adhesive on the back of the primary backing.
Abstract:
A ceramics structural body joining device used for joining a ceramics structural body with adhesive agent, characterized in that a plurality of ceramics structural bodies 1 can be pressingly joined to each other by filling statically pressurized medium between a tubular container 8 and an elastic sheet 9 in the state of the plurality of ceramics structural bodies 1 having the adhesive agent provided between joined surfaces 17 and an elastic sleeve 7 disposed on the outer peripheral surface of the sheet installed in the tubular container 8 while the elastic sheet 9 is installed between the elastic sleeve 7 and the tubular container 8, whereby, when the ceramics structural bodies are joined to each other by using the joining device, even when a large ceramics structural body is provided by joining a large number of small ceramics structural bodies to each other, the joined surfaces of the small ceramics structural bodies can be more accurately aligned with each other, distances between joined surfaces can be uniformed, the number of joinings can be reduced, and an excellent working efficiency can be provided.
Abstract:
A system and method of making an open-ended, reinforced, layered belt having a profile layer, a top layer material, and tensile cords fully encapsulated there between. The method includes engaging portion of the profile layer on a rotatable cylindrical mandrel with an engaging roller, disengaging with a take-off roller, and applying and fusing the cords to the profile layer at a desired cord spacing there between. The cord may be fused by melting the profile layer surface with a heated plow and/or with heated cord. The cord is then covered with the top layer material in a lamination step involving heating to melt at least a portion of the top layer and pressing it to fuse it to the reinforced profile layer. Lamination may be done downstream or directly on the mandrel.
Abstract:
A laminating process in which an adhesive composition which is freely flowing or can be rendered freely flowing is discharged from a coating appliance in the form of a substantially continuous or interrupted film, out of a slot nozzle with lateral film boundaries, and is applied and fixed to the surface of at least one web-type substrate, if applicable after being deposited on an advancing transfer substrate, such as a roller, and then transferred to the web-type substrate, and in which the film is guided outward to the substrate via the nozzle slot, clamped or hemmed in at its edges by the film boundary elements, heat is drawn off to the surrounding atmosphere via at least one heat exchange element provided along the film boundary elements.
Abstract:
A system and method of making an open-ended, reinforced, layered belt having a profile layer, a top layer material, and tensile cords fully encapsulated there between. The method includes engaging portion of the profile layer on a rotatable cylindrical mandrel with an engaging roller, disengaging with a take-off roller, and applying and fusing the cords to the profile layer at a desired cord spacing there between. The cord may be fused by melting the profile layer surface with a heated plow and/or with heated cord. The cord is then covered with the top layer material in a lamination step involving heating to melt at least a portion of the top layer and pressing it to fuse it to the reinforced profile layer. Lamination may be done downstream or directly on the mandrel.
Abstract:
A laminating process in which an adhesive composition which is freely flowing or can be rendered freely flowing is discharged from a coating appliance in the form of a substantially continuous or interrupted film, out of a slot nozzle with lateral film boundaries, and is applied and fixed to the surface of at least one web-type substrate, if applicable after being deposited on an advancing transfer substrate, such as a roller, and then transferred to the web-type substrate, and in which the film is guided outward to the substrate via the nozzle slot, clamped or hemmed in at its edges by the film boundary elements, heat is drawn off to the surrounding atmosphere via at least one heat exchange element provided along the film boundary elements.