A spool for winding strand-shaped material having flange discs (22, 24) with an outer flange surface and an inner flange surface (21, 23) as well as a method for manufacturing the spool. The discs have a central through bore (30) that is surrounded by an annular recess (25) with an annular wall (26) positioned in the inner flange surface. A tubular spool core (10) has front surfaces which are connected in a materially bonded manner to the annular wall (26) inside the annular recess (25) of the flange discs (22, 24), wherein at least one channel (32) is provided next to the annular wall (26) inside the annular recess (25) for receiving liquefied connection material. The spool core (10) has approximately the same diameter as the annular wall (26) inside the annular recess (25).

A heat and/or UV/LED activated single or double-sided tape is configured to seal multiple sheets of single or multilayer composite film with the film including an outer fluoropolymer layer. A repair kit includes a single-sided and/or double-sided heat and UV/LED activated adhesive tape, portable surface treater, and portable heat/UV/LED generating device. The single-sided and/or double-sided heat and UV/LED activated adhesive tape is useful in the manufacturing of architectural applications and in repair of architectural applications.

A welding method includes: moving a welding head toward a plurality of workpieces, wherein each of the plurality of workpieces includes a polymeric composite, the polymeric composite includes a polymer matrix and a plurality of fibers, and each of the fibers includes a magnetic material; applying a joining pressure to the workpieces with the welding head; applying energy to the plurality of workpieces to melt an interface between the plurality of workpieces, wherein a weld plane is defined at the interface between the plurality of workpieces; and applying a magnetic field to the plurality of workpieces to change an orientation of the plurality of fibers relative to the polymer matrix in the weld area so that the fibers in a weld area are at an angle relative to the weld plane.

A multi-phasic polymer blend for energy activated edge banding adhesion to a substrate is described. While the blend may be used for adhering edge banding to straight substrates, the blend is preferred for adhering edge banding to contoured substrates. The outer, hard, structural layer of the edge banding is formed from a polypropylene component. The polypropylene component at least includes polypropylene and an optional energy adsorber. The inner adhesion layer of the edge banding is formed from a multi-phasic polymer blend that bonds the outer layer of the edge banding to the substrate. The multi-phasic polymer blend at least includes a polyamide component, a polyolefin component, and a modified polypropylene component. Both the outer and inner layers forming the edge banding may be tinted to conform or contrast with the color of the finished substrate.

The invention relates to a method for producing strapping. A strapping band (4) is first guided about at least one packaging piece, tightened, and equipped with a closure at band ends (4a, 4b) to be connected in a closure unit (1). Furthermore, at least one sensor (7) connected to a control unit (8) is provided in the closure unit (1). One or more closure parameters are detected by means of the control unit (8) using the sensor (7), and the closure unit (1) is correspondingly actuated. According to the invention, the sensor (7) is designed as a load cell (7) which is let into a compression ram (6a, 6b) of the closure unit (1).

A method for producing a multi-component part (200) of a vehicle includes inserting an air-guiding device (10) having at least one contact portion (40) into a cavity (310) of a tool (300). The method then includes heating a composite part (100) having at least one mating contact portion (140) to a melting point of at least one material of the composite part (100), and heating the contact portion (40) of the air-guiding device (10) to a melting point of at least one material of the contact portion (40). The method further includes inserting the heated composite part (100) into the cavity (310) of the tool (300) and pressing the heated composite part (100) into a geometry of the part while simultaneously forming an integrally bonded connection between the mating contact portion (140) of the composite part (100) and the contact portion (40) of the air-guiding device (10).

An apparatus for thermoplastic welding includes at least one tool configured to support first and second thermoplastic composite parts in a first welding position having one or more joint lines between the first and second thermoplastic composite parts. The tool includes a plurality of induction coils. The apparatus further includes a susceptor removably positioned along the one or more joint lines. The susceptor is configured to heat the one or more joint lines when exposed to a magnetic flux generated by the plurality of induction coils to bond the first and second thermoplastic composite parts along the one or more joint lines. The apparatus also includes a susceptor removal device coupled to the susceptor and configured to remove the susceptor during bonding of the first and second thermoplastic composite parts.

A device for thermally welding workpieces including a heating element and a shielding gas supply is provided. The device includes a heating plate consisting of a thermal insulating material in which a groove is formed, said groove includes a heating element, relative to which a surface of a workpiece to be welded is positioned in close proximity to the heating element. A feed channel for a shielding gas is formed in the heating plate and communicates with the groove via at least one through-channel, and the feed channel for supplying shielding gas can be connected to a shielding gas source via a feed line and a valve. The device may further include an assembly for welding a first and a second workpiece, said assembly includes a first and second movement device for moving the workpieces towards one another.

The present invention is directed to a packaging material free from aluminium in the form of a continuous foil or film, comprising a layer of microfibrillated cellulose (MFC), wherein the layer comprising MFC has been laminated or coated on at least one side with a heat-sealable material. The MFC layer contains at least 60% by weight of microfibrillated cellulose. The present invention is also directed to a method for induction sealing, wherein a packaging material to be heat-sealed by induction is placed against an induction heating surface.

The invention relates to a method for welding a polyamide plastic and a poly(meth)acrylateparticularly a polymethyl methacrylateplastic using a primer, said primer containing at least one copolymer synthesised from at least one styrene or styrene derivative and at least one maleic anhydride or maleic anhydride derivative. The invention also relates to correspondingly welded products.