An induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products, the sealing device comprising: an inductor configured to induce a current in the packaging material, the inductor comprising conductor elements; a polymer insert holding the conductor elements; and a supporting body holding the polymer insert; wherein the polymer insert comprises a polymer matrix into which graphene particles are dispersed.

A method for ultrasonic welding of materials, comprising generating ultrasonic waves in a welding assembly; transmitting the generated waves along the welding assembly in a first direction; receiving the generated waves in a sonotrode, the waves entering the sonotrode while propagating along the first direction; causing the received waves within the sonotrode to propagate along a second direction, perpendicular to the first direction; and oscillating a welding surface of the sonotrode using peaks and valleys of the waves propagating in the second direction.

Herein are disclosed apparatus and methods for impinging fluids, e.g. heated fluids, onto the surface of substrates and then locally removing the impinged fluid. The apparatus may comprise at least first and second fluid delivery outlets that are in diverging relation to each other. The apparatus may comprise at least first and second fluid capture inlets that are locally positioned relative to the first and second fluid delivery outlets, respectively. The apparatus and method may be used e.g. to impinge fluids onto two converging substrates and may be used to heat the surfaces of the substrates so as to facilitate melt-bonding the substrates to each other.

A seam production machine for joining at least two planar flexible components is provided, wherein at least one of the components includes thermoplastic synthetic material. Included is a machine housing, which is designed with a work surface and a work arm, wherein a retaining bar mounted movably in the longitudinal axis including a seam production tool and a likewise mounted support bar including a component presser element are provided on the work arm, and a support plate for the components, including at least one oscillatingly drivable component feeder is disposed in the work surface, wherein the component presser element is lowerable and acted upon by a force and, when lowered, cooperates with the at least one component feeder. At least one seam pressing ram, serving as the seam production tool, is disposed at the bottom of the retaining bar, wherein a laser beam is directed at the support plate and forms a laser light spot there for plasticizing the synthetic material of at least one of the components.

An ultrasonic welding system that includes an ultrasonic transducer configured to convert electricity to generate ultrasonic waves, wherein the waves propagate along a first direction from the transducer; and a sonotrode that includes a single-component body having nodal and anti-nodal regions, and configured to propagate ultrasonic waves received at a nodal region along a first direction; a plurality of redirecting features formed in the body and configured to cause received ultrasonic waves propagating along the first direction to propagate along a second direction, perpendicular to the first direction, upon encountering one or more of the redirecting features; wherein the body is further configured to stretch and compress along the second direction based on corresponding peaks and valleys of the waves propagating along the second direction; and at least one ultrasonic welding surface at an anti-nodal region of the body configured to oscillate based on the stretching and compressing, wherein opposing ends of the sonotrode comprise the nodal region, at least one of the opposing ends configured to receive the ultrasonic waves.

Composite tooling systems and methods of manufacturing composite stringers of aircraft are provided herein. A composite tooling system includes a layup tool and an articulating stringer mandrel. The layup tool has a contoured surface with portions having different surface complexities. The articulating stringer mandrel includes two rigid mandrel elements and a cable. The first rigid mandrel element defines a first aperture, a first stringer surface, and a first bottom surface. The second rigid mandrel element is adjacent to the first rigid mandrel element and defines a second aperture, a second stringer surface, and a second bottom surface. A first length of the first rigid mandrel element cooperates with the surface complexity and a second length of the second rigid mandrel element cooperates with the surface complexity at the second rigid mandrel element so that a gap between the rigid mandrel elements does not exceed a predetermined gap threshold.

A disclosed apparatus for forming a sealing portion for folding a secondary battery pouch includes: first and second pressing bars disposed to face each other with a sealing portion for folding therebetween to apply pressure for flattening the sealing portion for folding that is defined by the edge of a secondary battery pouch for sealing an electrode assembly accommodated therein; first and second pressing surfaces provided at the first and second pressing bars, respectively, and disposed to face the sealing portion for folding; and a forming protrusion formed on the first pressing surface and configured to form a folding guide line on the sealing portion for folding by pressure applied by the first and second pressing bars.

An ultrasonic sealing anvil is provided which is capable of applying an optimal pressure to an overlap part in the absence of misalignment between the overlap part and the anvil, and preventing application of an excessive pressure in the occurrence of misalignment. An ultrasonic sealing anvil is configured to seal a tubular material having an overlap part extending in one direction, in a sealing direction crossing the overlap part. The anvil is provided with a step that can be abutted with the overlap part R, and a pair of grooves arranged sandwiching the step in the sealing direction.

An ultrasonic sealing apparatus which allows for easy maintenance of a horn and high cooling efficiency of the horn is provided. The ultrasonic sealing apparatus includes a horn that abuts on a cylindrical material and applies vibration thereto, and a horn cover which includes a small frames that cover a lateral surface of the horn and have slits through which a space in which the horn is enclosed communicates with outside, the horn cover being removably attached independently from the horn.

An ultrasonic sealing apparatus for paper packages achieves more stable ultrasonic sealing by cooling the horn during ultrasonic sealing which would otherwise be unstable due to heat imparted to a horn by continuous sealing. An end portion of a horn of a casing that includes the horn and a converter, or the horn, a booster and the converter is cooled by supplying air to a frame portion exposed toward an anvil side.