Methods and apparatus' for induction welding a first workpiece to a second workpiece at a welding region may include a metallic strip. The metallic strip may be a mesh. The properties of the metallic strip, such as, for example, pore size, thickness, and density, may be configured to conduct heat uniformly across the welding region and prevent eddy current formation across a workpiece. The metallic strip may be embedded in a workpiece or may be fixed to an induction welding tool that acts on the welding region during induction welding. A removable polymer tape may be disposed between a workpiece and a metallic strip fixed to an induction welding tool. The workpieces may be thermoplastic composite structures and thermoplastic composite stiffeners in aircraft structures.

Systems and methods for induction welding a stiffener to a thermoplastic composite structure using a removeable metal mask to reduce excess heat along the edges of the stiffener generated from an electromagnetic field of an induction welding tool.

A method for treating a surface of a fibre composite component, wherein an abrasive removal of the surface of the fibre composite component takes place by blasting a removing agent transported by a gaseous transporting fluid onto the surface of the fibre composite component by a feed nozzle and a suction extraction of the removing agent and material removed by the removing agent takes place by an extraction nozzle arranged in the region of the feed nozzle.

A piece of substrate material is formed under heat and pressure by a roller against a cavity or platen into a shaped substrate sheet having one or more depressions. Two substrate sheets are bonded together to form a substrate wherein the one or more depressions form one or more interior channels. The substrate is coated with a dope in a casting device having a guide portion corresponding to the shape of the substrate sheets and quenched to form a filtering membrane.

A film or packaging member for forming a package comprising at least one body and at least one outer adhesive layer, wherein the body and adhesive layer are made of a polyolefin-based plastic, wherein at least the adhesive layer is fusible to be weld to a target surface, and wherein at least the adhesive layer comprises particles that absorb radiation to heat at least a portion of the packaging member.

An apparatus for heat-sealing a lidding film (2) to a supporting element (3), comprising a movement track (5), which extends between an infeed zone and an outfeed zone, a conveying unit (8) and a heat-sealing device (6) which is fitted along the movement track (5), the device (6) comprising a supporting unit (10) and a closing unit (11) which are movable between a home position in which they are at a distance from each other and an operating position in which they are coupled to clamp, in use, the lidding film (2) and a supporting element (3); wherein the conveying unit (8) is configured to support the supporting element (3) and to move and is associable with the movement track (5) for moving on it; the conveying unit (8) comprising one or more active portions (12) which are configured to support the supporting element (3) from below and to couple to the supporting unit (10) to define with it a clamping unit for clamping the supporting element (3) against the closing unit (11).

A method of bonding a first object to a second object includes the steps of: providing the first object including thermoplastic material in a solid state, providing the second object including a proximal surface, applying a mechanical pressing force and a mechanical excitation capable to liquefy the thermoplastic material until a flow portion of the thermoplastic material is flowable and penetrates into structures of the second object, and stopping the mechanical excitation and letting the thermoplastic material resolidify to yield a positive-fit connection between the first and the second object. The second object has a region of low density, wherein the protrusion penetrates the region of low density at least partly before the thermoplastic material is made flowable, and wherein the first object includes a protruding portion after the step of letting the thermoplastic material resolidify, the protruding portion at least partly penetrates the region of low density.

A workstation for a film-processing packaging machine defines a film transport plane in which the packaging film can be transported. In addition, the workstation comprises an electrically operable heating assembly. The latter in turn comprises an electrically conductive planar resistance heating element which in a plane parallel to the film transport plane has dimensions that are greater by a factor of at least 5, preferably at least 10, than in a direction perpendicular to the film transport plane. The resistance heating element is arranged between a heating plate and a clamping plate. The disclosure also relates to a packaging machine with such a workstation and to a method for operating such a workstation.

A method of dissipating heat from a surface of a first thermoplastic composite (TPC) being inductively welded with a second thermoplastic composite (TPC) includes flexing a heat sink during placement to conform to the surface of the first TPC, cooling the heat sink, applying inductive heat to a weld interface area between the first TPC and the second TPC, and drawing off heat via the heat sink from the surface of the first TPC.

The present invention provides a life jacket. In an embodiment, the life jacket includes a jacket member; and an air blowing member which is provided in the jacket member to inject air to the jacket member, wherein the air blowing member includes a base part coupled with the jacket member; and a tube part extending from the base part, wherein a flexible portion is formed in a part or the entire of the tube part.