A method of permanently joining composite parts made from thermoplastic material includes providing a first composite part and a second composite part, both made from thermoplastic material, wherein an orifice is provided in at least one of the composite parts, positioning both composite parts such that a portion of the composite part which includes the orifice is adjacent to a portion of the other composite part, injecting melted thermoplastic material through the orifice to contact the first and the second composite part in a contact area, whereby surfaces of the first and the second composite part in that contact area melt together; and solidifying the thermoplastic material in the orifice and in the contact area to permanently join the first composite part to the second composite part.

A method of permanently joining composite parts made from thermoplastic material includes providing a first composite part and a second composite part, both made from thermoplastic material, wherein an orifice is provided in at least one of the composite parts, positioning both composite parts such that a portion of the composite part which includes the orifice is adjacent to a portion of the other composite part, injecting melted thermoplastic material through the orifice to contact the first and the second composite part in a contact area, whereby surfaces of the first and the second composite part in that contact area melt together; and solidifying the thermoplastic material in the orifice and in the contact area to permanently join the first composite part to the second composite part.

A dielectric welding film capable of achieving a tight welding through a short period of dielectric heating, and a welding method using the dielectric welding film are provided. The dielectric welding film is configured to weld a pair of adherends of the same material or different materials through dielectric heating, the dielectric welding film including a thermoplastic resin as an A component and a dielectric filler as a B component and satisfying the conditions (i) and (ii): (i) a melting point or softening point measured in accordance with JIS K 7121 (1987) is in a range from 80 to 200 degrees C.; and (ii) heat of fusion measured in accordance with JIS K 7121 (1987) is in a range from 1 to 80 J/g.

Systems and methods for a coupler including: a cable comprising a bend relief disposed at an end of the cable and one or more wires; a socket comprising one or more pins and one or more socket terminals, where the one or more pins are electrically connected to the one or more socket terminals; and a housing body disposed between the cable and the socket, where the housing body comprises a portion of the bend relief and the one or more wires connected to the one or more socket terminals, and where at least a portion of the housing body is made of hot melt such that the housing body encapsulates the portion of the bend relief, the one or more socket terminals, and the one or more wires connected to the one or more socket terminals.

Systems and methods for a coupler including: a cable comprising a bend relief disposed at an end of the cable and one or more wires; a socket comprising one or more pins and one or more socket terminals, where the one or more pins are electrically connected to the one or more socket terminals; and a housing body disposed between the cable and the socket, where the housing body comprises a portion of the bend relief and the one or more wires connected to the one or more socket terminals, and where at least a portion of the housing body is made of hot melt such that the housing body encapsulates the portion of the bend relief, the one or more socket terminals, and the one or more wires connected to the one or more socket terminals.

The invention relates to the use of a low Tg compatible resin as an adhesive layer for the welding of a thermoplastic composite structure to a thermoplastic or thermoset structure. The invention is especially good for the welding of large parts, such as wind turbine halves and spar caps. A useful thermoplastic composite is one formed by the infusion and curing of long fibers by a reactive acrylic liquid resin system, such as ELIUM® resin systems from Arkema.

Exemplary embodiments are disclosed of liners, linings, and liquid containment vessels including the same. Also disclosed are exemplary method of providing liners and linings for liquid containment vessels, such as process tanks, immersion tanks, containment pits, gravity feed conduits for transferring or conveying liquid, etc. In an exemplary embodiment, a liner or lining is anchored to at least one structural component by at least one extrusion weld and at least one mechanical fastener. The mechanical fastener is coupled to the structural component. The extrusion weld is coupled to the mechanical fastener. The liner or lining may be anchored to a wide range of structural components, such as a frame, a framework, a frame member, a tank, a wall, a support member, a reinforcing member, an outer shell, a substrate (e.g., concrete, etc.) or sidewalls defining a pit or a gravity feed conduit, combinations thereof, other structures or components, etc.

Disclosed herein are exemplary embodiments of linings or liners (e.g., liners with corner reinforcement, etc.), methods of providing a liner or lining for a tank, and methods and apparatus for providing additional protection and/or reinforcement at the corners of a liner or lining. In an exemplary embodiment, a method generally includes positioning and attaching one or more corner attachments at one or more corners of a liner that are formed between the bottom and the one or more sides of the liner. The one or more corner attachments may be configured to provide additional protection and/or reinforcement at the one or more corners of the liner.

Disclosed herein are exemplary embodiments of linings or liners (e.g., liners with corner reinforcement, etc.), methods of providing a liner or lining for a tank, and methods and apparatus for providing additional protection and/or reinforcement at the corners of a liner or lining. In an exemplary embodiment, a method generally includes positioning and attaching one or more corner attachments at one or more corners of a liner that are formed between the bottom and the one or more sides of the liner. The one or more corner attachments may be configured to provide additional protection and/or reinforcement at the one or more corners of the liner.

A dielectric welding film capable of providing excellent adhesiveness to a variety of adherends in a short period of dielectric heating, and an welding method using the dielectric welding film are provided. The dielectric welding film is configured to adhere a pair of adherends of the same material or different materials through dielectric heating, the dielectric welding film including a first thermoplastic resin as an A1 component having a predetermined solubility parameter, a second thermoplastic resin as an A2 component having a solubility parameter larger than the solubility parameter of the first thermoplastic resin, and a dielectric filler as a B component. The welding method uses the dielectric welding film.