An in-situ melt processing method for forming a fiber thermoplastic resin composite overwrapped workpiece, such as a composite overwrapped pressure vessel. Carbon fiber, or other types of fiber, are combined with a thermoplastic resin system. The selected fiber tow and the resin are prepared for impregnation of the tow by the resin. The resin is melted; and, carbon fiber is impregnated with the melted resin at the filament winding machine delivery head. The molten state of the composite is maintained and is applied, in the molten state, to the heated surface of a workpiece. The portion of the surface being wrapped is heated to the melting point of the thermoplastic resin so that the molten composite more efficiently adheres to the heated surface of the workpiece and so that the uppermost layer of fiber resin composite is molten when overwrapped resulting in better adherence of successive layers to one another.

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.

Disclosed herein is a device for producing composite components including at least one wound fiber reinforced polymer layer, including: a support with a first holding device and a second holding device for mounting a liner in between, where the first and the second holding device are such that the liner can rotate around a central rotation axis which extends through the first holding device and the second holding device, and at least two movable arms for feeding a fiber structure, where the support is established such that the liner can be moved axially parallel to the central rotation axis and each movable arm for feeding the fiber structure can be moved perpendicular to the central rotation axis. Further disclosed herein is a process for producing composite components using the device.

A method for manufacturing a pressure container includes thermally curing a thermosetting resin with which a fiber-reinforced base material is impregnated. The thermally curing step includes thermally curing the thermosetting resin by heat exchange with a fluid supplied to an inside of a liner; and thermally curing the thermosetting resin by heating from an outer surface side of the fiber-reinforced base material. A temperature of the fluid supplied to the inside of the liner is higher than a temperature of the helating from the outer surface side of the fiber-reinforced base material so that the thermosetting resin is thermally cured from an inner surface side of the fiber-reinforced base material adjacent to the liner before the outer surface side of the fiber-reinforced base material.

A manufacturing method for a pressure tank includes disposing a preform, in which a fiber layer is formed on an outer surface of a liner that forms an internal space of a pressure tank, within a mold, and rotating the preform in a circumferential direction within the mold with a central axis of the preform as a rotation center while resin is injected toward the preform disposed within the mold from a gate.

Disclosed are embodiments for an engineered feature formed as a part of or on a chamber component. In one embodiment, a chamber component for a processing chamber includes a component part body having unitary monolithic construction. The component part body has an outer surface. An engineered complex surface is formed on the outer surface. The engineered complex surface has a first lattice framework formed from a plurality of first interconnected laths and a plurality of first openings are bounded by three or more laths of the plurality of laths.

There is provided a high-pressure tank manufacturing method that ensures a shorten heating period compared with a conventional one and eliminates a need for taking out a material for heating after heating. A high-pressure tank manufacturing method includes: disposing a conductive heating material on an outer periphery of a resin liner; winding a conductive fiber with which thermosetting resin is impregnated around the outer periphery of the resin liner on which the heating material is disposed; and heating the heating material and the fiber on the outer periphery of the resin liner by induction heating to harden the thermosetting resin.

Provided is a composite inner frame multi-bonded barrel, a shell-integrated projectile propellant tank including the same, and a method for manufacturing the barrel and the tank. The shell-integrated projectile propellant tank may include the composite inner frame multi-bonded barrel including a cylinder portion including a plurality of inner frames bonded together; a dome portion including an upper dome frame and a lower dome frame bonded to an upper end and a lower end of the cylinder portion, respectively; a cylindrical shell coated on an outside of the composite inner frame multi-bonded barrel; and at least one manhole cover sealing a manhole cover coupling hole formed in a center of the upper dome frame or the lower door frame, and the at least one manhole cover has a fluid injection port formed on one side thereof.

A mandrel for manufacturing a fiber reinforced resin vessel by a filament winding process includes: a tubular part; and a pair of end parts joined to respective axial ends of the tubular part. The tubular part and the end parts are each made of a molded product of a material including pulp and a starch-based binder.

A method for molding a composite pressure vessel liner to secure a boss to the liner is described. The method comprises providing a moldable liner having an end section with a neck and a port. A boss is positioned around the neck of the liner and the liner is heated and pressure is applied to mold the liner to form to the shape of the boss. The angle of the molded liner secures the boss in place around the liner and it is able to withstand high pressures. A tool for molding the liner and a method for using the tool is also described. The tool comprises a tool body and a pipe having external threads. The tool body abuts the liner and the boss. Winding the pipe exerts pressure on the liner, which when heated, forces the liner to mold to the shape of the boss.