Systems and methods are provided for fabricating a hybrid composite part. A method includes braiding a first set of fibers to form a weave having a closed cross-sectional shape, braiding a second set of fibers into the weave that are chemically distinct from the first set of fibers, impregnating the weave with a resin, and hardening the resin within the weave to form a hybrid composite part.

A machine for making a protective joint has a guide system, which is selectively clampable about a pipeline on opposite sides with respect to the annular junction portion and configured for defining an annular path about the annular junction portion; at least one heating unit moveable along the annular path and configured for heating the annular junction portion and moveable along the annular path; at least one spray unit moveable along the annular path and configured for applying at least one polymer material to the annular junction portion; and an extrusion die moveable along the annular path and configured for applying a protective foil about the annular junction portion.

Systems and methods are provided for fabricating a hybrid composite part. A method includes braiding a first set of fibers to form a weave having a closed cross-sectional shape, braiding a second set of fibers into the weave that are chemically distinct from the first set of fibers, impregnating the weave with a resin, and hardening the resin within the weave to form a hybrid composite part.

Provided is a laser welded body which can be integrated through a laser-welding step without undergoing complicated steps even through use of the same or difference resin members each other, which has excellent welding strength between the resin members, which maintains the characteristics of a resin contained in the resin member and which exhibits the high welding strength by improving meltability of the resin members yet under a laser-welding condition of a medium and high scan speed. A laser welded body comprises a resin member(s) which contains a thermoplastic resin and nigrosine sulfate having a sulfate ion concentration of 0.3 to 5.0% by mass and has an absorbance a of 0.09 to 0.9, an adjoined part where the resin member(s) is overlapped and/or butted, and at least a part of the adjoined part is laser-welded.

Provided is a laser welded body which can be integrated through a laser-welding step without undergoing complicated steps even through use of the same or difference resin members each other, which has excellent welding strength between the resin members, which maintains the characteristics of a resin contained in the resin member and which exhibits the high welding strength by improving meltability of the resin members yet under a laser-welding condition of a medium and high scan speed.

A laser welded body comprises a resin member(s) which contains a thermoplastic resin and nigrosine sulfate having a sulfate ion concentration of 0.3 to 5.0% by mass and has an absorbance a of 0.09 to 0.9, an adjoined part where the resin member(s) is overlapped and/or butted, and at least a part of the adjoined part is laser-welded.

The present invention relates to a method for producing a container which consists of a thermoplastic at least to some extent and comprises at least a first compartment element and at least a second compartment element joined to the first compartment element in a joining region by thermoplastic welding. The invention also relates to a plastic container which can be, and preferably is, produced according to said method.

A method of applying protective sheeting of polymer material to a pipeline, such as on a J-lay rig, includes the steps of driving a carriage along an annular path about the pipeline; extruding and simultaneously winding the protective sheeting about the pipeline via an end extrusion die fitted to the carriage; compressing the protective sheeting on the pipeline, directly downstream from the end extrusion die, so the protective sheeting adheres to the pipeline; and controlling the drive, extrusion, and compression steps so that the time lapse between expulsion of a cross section of protective sheeting from the end extrusion die and compression of the same cross section of protective sheeting is less than one second.

Examples herein relate generally to methods, and associated components, characterized by the laser welding of crosslinked polyethylene plumbing components so as to create a leak-proof connection with both mechanical and thermal fusion bonds.

Systems and methods are provided for fabricating a hybrid composite part. A method includes braiding a first set of fibers to form a weave having a closed cross-sectional shape, braiding a second set of fibers into the weave that are chemically distinct from the first set of fibers, impregnating the weave with a resin, and hardening the resin within the weave to form a hybrid composite part.

Systems and methods are provided for fabricating a hybrid composite part. A method includes braiding a first set of fibers to form a weave having a closed cross-sectional shape, braiding a second set of fibers into the weave that are chemically distinct from the first set of fibers, impregnating the weave with a resin, and hardening the resin within the weave to form a hybrid composite part.