A method of joining fiberglass-reinforced composite pipes includes joining an inner tube of each pipe by fusion to form a fused bond, joining fiber reinforced polymer tubes of each pipe by depositing a silica glass particle epoxy directly on the fused bond and on bonded edges of the fiber reinforced polymer tubes as a composition to cover tube edges and the fused inner tube bond, and curing the composition.

Disclosed herein is a method of sealing a side portion of a pouch-shaped battery including an electrode current collector and a pouch-shaped battery case, the method including bending a lower case and an upper case connected to the lower case such that the upper case faces the lower case and the electrode current collector is disposed in the lower case, the lower case and the upper case being connected to one another at a bent portion of the pouch-shaped battery case, a primary sealing step of sealing the lower end part of the side portion of the pouch-shaped battery case adjacent to the bent portion of the pouch-shaped battery case, and a secondary sealing step of sealing the entirety of the side portion of the pouch-shaped battery case.

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.

There is provided a resin molded product including a first member and a second member which are laser welded. A laser welded portion includes a first welding portion which is welded by laser welding of galvano method and a second welding portion which is welded by laser welding of flash method or laser welding of scanning method.

The invention relates to a method for the ultrasonic welding of two plastic components using a sonotrode, wherein the energy for the welding is introduced into the plastic components via at least one or more pins of the sonotrode, wherein the two plastic components are welded to one another step by step, wherein the respectively subsequent step of the welding is carried out in a region which has already been loaded and relieved of tension as a result of the preceding step of the welding.

A glued arrangement, preferably for a motor vehicle, is disclosed. The glued arrangement includes a first component, a second component, and at least one adhesive layer for connecting the two components. The adhesive layer includes a central zone and an edge zone that surrounds the central zone where, in the hardened state, the adhesive in the edge zone has a higher elasticity than the adhesive in the central zone.

A sealing device generally includes a rotatable support cylinder having an outer, circumferential surface and a heating element disposed about such surface and secured thereto such that the heating element rotates therewith. The heating element is coiled about the outer surface of the cylinder in the form of an overlapping helical pattern. Juxtaposed film plies may be sealed together by bringing the sealing device into rotational contact with the juxtaposed film plies and heating the heating element to a temperature sufficient to cause the film plies to seal together.

A compound heat seal structure that, when heat-sealing a bag with a stacked area level difference, reliably seals even a section having different level and that can be easily opened. A compound heat seal structure is provided as a peelable seal in a band shape on a bag and a linear heat seal is added as a peelable seal in that band-shaped peelable heat seal in the longitudinal direction thereof.

Disclosed are embodiments of a versatile storage bag and methods of making same. The versatile storage bag may have first and second sidewalls, a double-locking closure mechanism with a first closure element extending along the first sidewall and a second closure element extending along the second sidewall, each closure element having a channel and an elongated member configured for interlocking with one another. A double-seal along three sides of the first sidewall and the second sidewall form a gusset between two seals, leaving an opening through the double-locking closure mechanism. Corner seals may be formed at the corners of the first and second sidewalls, further reinforcing the double-locking closure mechanism for an airtight and hence waterproof seal. The versatile storage bag may be made of a food-grade polyethylene vinyl acetate blend, approximately 90% or less ethylene vinyl acetate and approximately 10% or less polyethylene.

An apparatus for manufacturing a container that includes a side wall (5) in the form of a tube and a base (7) at one end of the tube. The apparatus includes a tube forming unit (15) for progressively folding a length of a sheet (19) of a side wall material into an elongate tube shape (21) having a forward end (23) for receiving a base (7) of the container and welding together lengthwise extending sides of the sheet to form the tube. The apparatus also includes a base attachment unit (17) for positioning a base of the container on the forward end of the tube.