The invention relates to a modification process for modifying a biaxially oriented pipe, comprising a) providing a biaxially oriented pipe made by stretching a tube made of a thermoplastic polymer composition in the axial direction and in the peripheral direction, b) placing an insert within an end portion of the pipe, wherein the outer periphery of the cross section of the insert substantially matches the inner periphery of the cross section of the pipe and c) heating the end portion such that the end portion axially shrinks while the inner periphery of the cross section of the end portion is substantially maintained, to obtain a modified biaxially oriented pipe with a thickened end portion.

Machine for welding workpieces made of plastic materials of the type comprising: two workpiece-carrying fixtures each provided with a template having a recess adapted to accommodate a respective plastic workpiece to be welded; a moving assembly adapted to selectively couple and press the two workpiece-carrying fixtures to/against each other, so as to tighten the plastic workpieces housed in the templates one against the other; a vibrating member which is adapted to vibrate on command a first workpiece-carrying fixture; automatic piece locking means adapted to selectively lock/immobilise the plastic workpiece to be welded inside the template of the first workpiece-carrying fixture; and an electronic control unit adapted to drive/control said automatic piece locking means.

A device for joining a lens with a housing of a lighting device of a motor vehicle, having a receiver for receiving and securing the housing and a pre-centering device for positioning the lens on the housing, wherein the pre-centering device includes a frame element and a plurality of positioning elements that are attached to the frame element for receiving the lens, wherein during a pre-centering process, the frame element of the pre-centering device is movable together with the joined lens relative to the receiver in such a way that the lens is aligned on the housing, which is received in the receiver.

Systems and methods are provided for consolidating thermoplastic parts. One embodiment is a method of automatically forming a thermoplastic composite structure. The method includes heating a thermoplastic preform to a forming temperature, forming the thermoplastic preform into a thermoplastic part having a desired shape, aligning multiple thermoplastic parts together, and consolidating the multiple thermoplastic parts together while controlling crystallization to form a complex thermoplastic part.

A structural member (10) comprising: (i) a first carrier (12A) and a second carrier (12B), each carrier including a plurality of interconnecting ribs (16), each carrier further including one or more projections (28) extending from exterior walls (30) of each carrier; (ii) one or more secondary members (14) secured to one or more surfaces of each carrier; and (iii) an adhesive material (32) disposed on the first carrier (12A), the second carrier (12B), or both, wherein the first carrier (12A) and the second carrier (12B) are bonded to each other via the adhesive material (32).

Molded pulp containers with fused junctions and methods of making of same are provided. The present invention provides a pulp container, comprising a molded pulp body, wherein the body comprising a bottom and at least one side wall forming a wherein the at least one side wall comprising a upper rim, a neck, wherein the neck comprising a upper closure part and a lower rim, a fused junction, wherein a part of the upper rim of the at least one sidewall of the body and a part of the lower rim of the neck are aligned and fused together. The fused junction may be formed by ultrasonic welding.

Methods for making tip bonded formed laminates are made from multiple layers of formed substrates made from films which are bonded together at the tips of their formed protrusions. Tip bonded laminates can be designed with greater resistance to bending, improved resilience to compression, and can be patterned for directionally oriented responses to tensile loads. Also, tip bonded formed laminates made from multiple layers of formed substrates can use their layered structure to provide better aesthetics as well as better physical properties such as improved puncture resistance. Tip bonded formed laminates can be configured with thicker portions and designed patterns, which are appealing to consumers. A tip bonded formed laminate can be made from two or more formed substrates and can be used instead of a single, thick, unformed, substrate, so the laminate can use about the same amount of material, while still providing surprising functional benefits.

Disclosed is a pressure vessel including an upper liner portion including a top insertion-injection molded and coupled to a peripheral part of a boss portion in which a through hole extends in a vertical direction, extending downward cylindrically from the top to form a first accommodation space accommodating a fluid and having an open lower center, and including a first shape-matching portion in which a first overlapped-coupled surface is formed on a bottom end edge to be perpendicular to a laser emission direction and extends in a vertical direction along a circumferential direction and a lower liner portion having a top end edge coupled to the bottom end edge of the upper liner portion.

Described herein is a process for producing a molded body which encloses a cavity, by welding two partial bodies. Also described herein is a die with which the process of producing the molded body can be carried out. Also described herein is a molded body which can be obtained by the process.

A liquid container for a motor vehicle, having a first half-shell and a second half-shell, the half-shells delimiting a storage volume for accommodating liquid, the first half-shell having a first support layer and a first barrier layer, the second half-shell having a second support layer and a second barrier layer, the first barrier being situated on a side of the first support layer facing the storage volume, and the second barrier layer being situated on a side of the second support layer facing the storage volume.