A method for rapid heat cycle compression molding comprises placing an assemblage of feed constituents in a mold, placing the mold between two hot platens of a hot press, heating the mold by pressing the two hot platens against the mold, placing the mold between two cold platens of a cold press, cooling the mold by pressing the two cold platens against the mold, and ejecting the part from the mold.

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

A rotating manifold includes an axle, a hub rotatable relative to the axle about an axis of rotation, and a compressed air line in fluid communication housed in the axle. The rotating manifold further includes a vacuum line in fluid communication with the hub. The rotating manifold further includes a plurality of conduits connected to the hub. Each conduit of the plurality of conduits is in fluid communication with the vacuum line and houses a compressed air line arm in fluid communication with the compressed air line.

A method for rapid heat cycle compression molding comprises placing an assemblage of feed constituents in a mold, placing the mold between two hot platens of a hot press, heating the mold by pressing the two hot platens against the mold, placing the mold between two cold platens of a cold press, cooling the mold by pressing the two cold platens against the mold, and ejecting the part from the mold.

A method for manufacturing a hollow protruding implement (1) including a fine hollow protrusion (3) having an opening (3h) of the present invention includes a protrusion forming step of inserting a projecting mold part (11) into a base material sheet (2A) from one face (2D) side thereof, the base material sheet containing a thermoplastic resin, thereby forming a non-penetrated hollow protrusion (3) projecting from another face (2U) side of the base material sheet (2A). Subsequently, an opening forming step is performed in which an opening (3h) that penetrates the hollow protrusion (3) is formed by using a contactless opening forming means disposed on the other face (2U) side of the base material sheet (2A).

A method for fusing thermoplastic composite structures includes placing a substructure on an inner surface of a skin that is laid up on a shaping surface of a tool configured to maintain the shape of an outer mold line. The method further includes applying at least one insulation layer over a flange of the substructure and over exposed portions of the inner surface of the skin not in contact with the substructure, and applying a vacuum bag to at least partly enclose the skin and the substructure. The method yet still further includes applying heat to the shaping surface to fuse the substructure to the skin such that the skin exceeds its melting point and at least a portion of a raised segment of the substructure does not exceed its melting point.

A production method of a modeled object includes a fixing step of fixing a thermally expandable sheet onto a tray by entirely or partially fixing a periphery of the thermally expandable sheet placed on the tray by a fixing member; a thermally expanding step of thermally expanding partially the thermally expandable sheet, which is in a state of being fixed onto the tray by the fixing step, by being heated by irradiating the thermally expandable sheet with light by an irradiation unit, while moving the irradiation unit from a first position toward a second position unit; and cooling the thermally expandable sheet, which has been thermally expanded partially by the thermally expanding step, while maintaining the state in which the thermally expandable sheet is fixed onto the tray, while returning the irradiation unit from the second position to the first position.

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of one or more enclosures with one or more respective cavities that directly receive a portion of cooling gas emanating from one or more associated cooling elements. Each enclosure includes a port containing a variable exhaust device and optional flow buffer, acting to maintain a pressure differential between the cavity and an adjacent inside volume of the molten film tube, adjustable to optimize molten film tube stability cooling element efficiency and spaced apart dimension between cooling elements. Additionally, at least one cooling element is provided, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas.