The invention relates to a system and process of the sealing of an area of an object intended to be covered, such as an opening slot, by a sealing strip which becomes adhesive in an excited state when subjected to ultrasound. This procedure comprises the steps of: supplying a sealing strip between an object and a sonotrode having a linear application area; supporting or pressing the linear application area of the sonotrode with the sealing strip to thereby adhere the sealing strip area, which is in contact with the linear application area of the sonotrode, to a corresponding area of the object; and displacing the object in relation to the sonotrode according to a profile of the sealing area, so as to apply the sealing strip to the sealing area of the object.

A portable assembly for securing a plastic fitting to a plastic pipe by employing fusion or thermal sealing is disclosed. The assembly is secured to the outer circumference of a plastic pipe at a desired location. The assembly can be secured at any longitudinal and lateral position along a plastic pipe. A heater heats both the pipe and the fitting to the point where they begin to melt. The heater is then removed and the fitting is pressed onto the surface of the pipe, thus fusing the fitting to the pipe. After cooling, the assembly is removed and the surface of the pipe within the interior of the fitting is drilled or removed. This now enables fluid within the pipe to be sent to the fitting and onto distribution lines which are connected to the fitting.

A method of directly joining a polymer to a metal along a joint interface through the formation of CO-M chemical bonds, where M represents an element in the metal to be joined. The method includes heating the metal to a predetermined temperature above a glass transition temperature of the polymer and less than a flash ignition temperature of the polymer and less than a metal melting temperature of the metal; physically contacting at least one of the metal and the polymer; and applying compression pressure to the joint interface of the metal and the polymer when the metal is above the glass transition temperature of the polymer and less than the flash ignition temperature of the polymer and less than the metal melting temperature of the metal to generate intimate atomic contact between the metal and the polymer to create CO-M chemical bonds between the metal and the polymer.

Methods for ultrasonic welding of thermoplastic polymer workpieces and assemblies made therefrom are provided. The method may comprise disposing a first region of a first thermoplastic polymer workpiece and a second region of a second thermoplastic polymer workpiece between an ultrasonic horn and an anvil of an ultrasonic welding device. The first workpiece has a preformed deformation and at least one of the first and/or second workpieces has an adhesive precursor applied thereto. The ultrasonic horn or anvil seats within the preformed deformation. Ultrasonic energy is applied from the ultrasonic horn to create a weld nugget between the first and second workpieces. The assembly thus formed has a green strength sufficient to be further processed immediately. The methods provide a robust weld joint with controlled adhesive bondline thickness.

A welding method heats a surface to be welded of a continuous strip member with a laser beam. The welding method pressurizes the strip member and a continuous film to weld the surface to the film, when or after heating the surface with the laser beam. The welding method preheats the surface before heating the surface with the laser beam. A welding device includes a heat device having an infrared light source disposed to extend along a feed path for the strip member. The heat device is configured to irradiate the surface with infrared light to heat the surface with infrared light. The welding device includes a pressure device configured to pressurize the strip member and the film to weld the surface to the film.

A protective packaging formation device is disclosed herein. The device includes an inflation assembly that directs fluid between first and second overlapping plies of a web material. The device also includes a sealing mechanism that includes an arcuate web-support surface. The web-support surface includes a heater that defines a heating zone that is operable to heat the plies to create a longitudinal heat seal that seals the first and second plies together as the web is driven over the heating zone in a downstream direction. The web-support surface also includes a cooling zone disposed downstream of the heating zone operable to allow the heated plies to cool at the longitudinal heat seal as the web is driven over the heating zone in a downstream direction, such that the cooled longitudinal heat seal retains the fluid between the plies.

A first thermoplastic component and a second thermoplastic component including a first joint portion and a second joint portion, respectively, are provided. A least a portion of a surface area of each of the first and second joint portions include a respective first and second mating surface. The first and second mating surfaces of the respective first and second joint portions are positioned in contact with one another. The first and second joint portions are fusion joined. Fusion joining the first and second joint portions forms a fused unitary portion of the first and second thermoplastic components.

A process for producing a polymeric stiffened sheet-like component, for example a panel, for aircraft construction. Production includes integration of hollow stiffening profiles, for example closed omega stringers, onto a sheet-like component, for example an external skin, where the stringers and external skin are produced from thermoplastic composite material. The stringers are integrated onto the external skin by establishing contact between the stringers and the external skin and melting thermoplastic composite material with exposure to heat and pressure at the areas of contact between external skin and stringers. Melting of the other sections of the stringers is avoided with a pressurized cooling fluid with a temperature significantly below the melting point of thermoplastic composite material, the fluid flowing through the airtight enclosed space in the stringers. Use of closed airtight thermoplastic omega stringers allows integration of the stringers onto the external skin in absence of any flexible tube within the stringers.

An elastic composite structure includes a plurality of tensioned elastic threads positioned between first and second web layers. A pattern of laminating bonds fuse the first and second web layers together within a deactivated zone of the elastic composite structure. A cut end of a first portion of a tensioned elastic thread and a cut end of a second portion of the tensioned elastic thread are positioned on opposing ends of the deactivated zone. A pattern of anchoring bonds fuses the first and second web layers together within an anchored zone bounding opposing ends of the deactivated zone. The anchored zone includes a first plurality of bonds that anchor the first portion of the tensioned elastic thread to the first and second web layers and a second plurality of bonds arranged that anchor the second portion of the tensioned elastic thread to the first and second web layers.

A bag making and packaging machine includes a cutter fixed to a sealing member that cuts a laterally sealed portion of a film using pressure force with which a pair of sealing members sandwiches the film during lateral sealing. The bag making and packaging machine further includes a pair of sealing jaws, a knife, a pressurization mechanism, and a pressurization mechanism control part. The knife fixed to one sealing jaw, fusion-cuts the laterally sealed portion of the film. The pressurization mechanism exerts pressure force on one sealing jaw towards the other sealing jaw so that the pair of sealing jaws sandwiches and laterally seals the film therebetween, and the knife comes into contact with a laterally sealed portion and fusion-cuts the laterally sealed portion. The pressurization mechanism control part causes the pressurization mechanism to cease exerting pressure force based on error information pertaining to the film or the goods.