Abstract: A pipe intended to be mounted in a fluid circuit of an aircraft, the pipe comprising a tube and two connection ends, the tube being made of a thermoplastic material and having a cylindrical shape, the tube defining an internal surface, intended to be in contact with the fluid, and an external surface opposite the internal surface, the pipe comprising at least one reinforcement band extending longitudinally on the external surface of a longitudinal portion of the tube, so as to form a reinforced portion of the tube.

Abstract: A nozzle tip for guiding a valve pin of a nozzle for injecting molten material into a mold during injection molding is described. The nozzle tip consists of an outer member, provided with an axial pass-through cavity, which at one end comprises a central pass-through conduit for the exit of the molten material, an inner member, having an axial pass-through cavity, which is coaxially mounted within the outer member and comprises a tapered tip with a hole to direct the molten material to the central conduit, and an annular-shape insert made of wear-resistant material, with a central pass-through cavity into which the valve pin can slide and mounted in correspondence with the central pass-through conduit.

Abstract: A stack mold carrier for supporting a center mold section of an injection molding machine, including a platen assembly, is disclosed. The stack mold carrier includes a carrier base which includes a mold support portion for coupling with and supporting the center mold section. A linkage assembly is pre-installed on the carrier base and a first restraint system is provided for releasably retaining the linkage assembly in a first, non-operational position wherein the linkage assembly is fixed relative to the carrier base such that the stack mold carrier can be disposed on the platen assembly as an assembled unit. The stack mold carrier includes a second restraint system for releasably retaining the stack mold carrier on the platen assembly prior to connection with the center mold section.

Abstract: In one aspect, a method of molding a multilayer article comprises causing a surface layer material injection unit to commence injecting a surface layer material into a mold cavity via a surface layer material channel. Then, an internal layer material injection unit commences injecting an internal layer material into the mold cavity an internal layer material channel. Then, during application of a hold pressure upon the surface layer material in the surface layer material channel and with the surface and internal layer material injection units in fluid communication with one another, a pullback stroke is effected at the internal layer material injection unit. After a delay interval, at least one physical parameter indicative of a post-pullback pressure of the internal layer material is detected, and an indicator of pullback effectiveness is generated based on the post-pullback pressure indicated by the at least one physical parameter relative to a threshold pressure.

Abstract: Disclosed are cylindrical-coordinate 3D printers and methods of 3D printing. In one embodiment, the cylindrical-coordinate 3D printer can comprise a printbed, a rotatable printbed support assembly, a vertically translatable base plate supporting the printbed support assembly, four rail segments aligned radially with the printbed support assembly, and four gantry carriers configured to carry or support four printheads. The gantry carriers can be moveable along the rail segments. The four gantry carriers can be moved simultaneously.

Abstract: The present disclosure relates to a method for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. A laser beam is directed at a tunable mask. At least one emergent beam is collected from a plurality of emergent beams emerging from the tunable mask. The at least one emergent beam is collimated to create a collimated beam. Each emergent beam from the tunable mask has a plurality of beam lets of varying or identical intensity, and each beam let emerges from a unique subsection or region of the tunable mask. The collimated beam is focused into a laser beam which is projected as an image plane onto or within the photopolymer resist material, such that the same optical path length is created between the tunable mask and the focused image plane for all optical frequencies of the focused laser beam.

Abstract: Provided is a material supply device that supplies a material to a plasticizing unit, the plasticizing unit being configured to plasticize the material to generate a plasticized material, the material supply device including: a housing having an inlet through which the material is fed into the plasticizing unit, and accommodating the material; and a rotary member provided above the inlet in the housing and configured to rotate around a rotation shaft intersecting a vertical direction. The material is accommodated above the rotary member in the housing, and the material is intermittently supplied to the inlet by the rotation of the rotary member.

Abstract: A method for forming a vacuum insulated structure using a prepared core material includes preparing a powder insulation material defining a bulk density, pre-densifying the powder insulation material to form a pre-densified insulation base, crushing the pre-densified insulation base into granular core insulation to define a core density of the granular core insulation, disposing the granular core insulation having the core density into an insulating cavity defined within an insulating structure and expressing gas from the interior cavity of the insulating structure to further densify the granular core insulation to define a target density. The granular core insulation defines the target density disposed within the insulating structure defines the vacuum insulation structure, wherein the target density defines a density in the range of from approximately 80 grams per liter to approximately 350 grams per liter.

Abstract: A positioning device for aligning and guiding a first half and a second half of a mold together. The positioning device may comprise a housing including identical wall members configured to define a cavity. Each of the wall members comprise a tab, the tab defining a recess and a protrusion on opposed sides of the tab such that the protrusion and recess defined by the tab of one of the wall member is configured to interlock with the recess or protrusion of the tab of an adjacent wall member to connect adjacent wall members. A first member may be slidably disposed within the cavity of the housing, the first member defining a void. The positioning device may further comprise a second member comprising a base and a protrusion, wherein the protrusion is configured to matingly engage the void of the first member.

Abstract: A plasticizing device includes: a flat screw that has a groove forming surface on which a spiral first groove is formed, and that rotates; a barrel that has a facing surface facing the groove forming surface and that includes a communication hole through which a plasticizing material flows; a heater that heats resin pellets; and a screw case that accommodates the flat screw and that includes a passage port through which the resin pellets pass toward the flat screw, in which the flat screw has a first side surface on which a first supply port for supplying the resin pellets to the first groove is formed and a second side surface formed on a side farther from the barrel than the first side surface, and a first distance, which is a shortest distance between the first side surface and the screw case, is larger than a second distance, which is a shortest distance between the second side surface and the screw case.

Abstract: After the injection shaft moves backward and the gas is supplied into the injection chamber, it is desired to accurately control the gas supply amount in the injection device in which the injection shaft is moved forward to compress and dissolve the gas in the molding material in the injection chamber. An injection device of the disclosure supplies a gas into an injection chamber via a gas supply hole which passes through an injection shaft and is opened at a tip surface of the injection shaft. The injection device and a gas dissolution method thereof according to the disclosure perform backward and forward movement of the injection shaft for a plurality of cycles. The injection device of the disclosure has at least one seal ring and at least one piston ring aligned in an axial direction on an outer circumferential surface of the injection shaft.

Abstract: In a configuration in which a guide member that guides an intermediate member to be slidably movable is provided on an upper surface of side support plates, a bending buffer portion is provided in a first region of the side support plates which is located more outward than a part of the side support plates on which the guide member is provided. The bending buffer portion is configured to be bent and deformed easier than a second region of the side support plates in which the guide member is provided.

Abstract: A variation in a deposition amount per unit area of a plasticized material discharged from each nozzle and deposited on a stage due to a variation in a discharge amount of the plasticized material discharged from each nozzle is reduced. A three-dimensional shaping device includes: a plasticizing unit configured to generate a plasticized material by rotation of a screw; a discharge unit configured to discharge the plasticized material from a plurality of nozzles; a discharge amount adjustment unit configured to adjust a discharge amount of the plasticized material from each of the plurality of nozzles; a moving unit configured to relatively move the discharge unit with respect to a stage; and a control unit.

Abstract: An apparatus and method are provided for extracting a build part from an additive manufacturing machine. Upon completion of the build part by the additive manufacturing machine, a pin array is placed above the build part, the pin array including a plurality of pins slidably supported by a support plate for vertical movement relative to the support plate. The pin array is moved toward the build part so that the plurality of pins contact the build part and conform to the contour of the build part. The pins of the pin array are locked with the pins in contact with and conforming to the build part. The pin array and build part are inverted so that the build part is supported by the locked pins of the pin array. All of the pins of the array are locked simultaneously by a common locking component. The build plate can be formed on a sacrificial interposer plate that is removed by an etchant bath supported on the pin array when the build part is inverted.

Abstract: An injection molding nozzle system for delivering molten material from a manifold to a nozzle is disclosed. The manifold and nozzle are disposed within pocket of a manifold plate. The nozzle is secured to a melt-transfer bushing disposed within the manifold via a collar. The collar is secured to the bushing such that it is centered about the axis of the outlet of the bushing. A support ring supports the nozzle within the pocket such that the nozzle is centered about the axis of the pocket. In a cold state, the outlet of the bushing and the inlet of the nozzle are misaligned. In operation, thermal expansion of the components bring the outlet of the bushing and the nozzle into alignment. The melt-transfer bushing and the connection of the nozzle to the manifold, via the releasable connection between the collar and the bushing facilitates manufacture and assembly of the system.

Abstract: A plasticizing device includes: a material storage unit having a charging port and configured to store pellet-shaped resin pellets; a plasticizing unit having a supply port in communication with the charging port and configured to plasticize at least a part of the resin pellets to generate a shaping material; a coupling pipe having a coupling path coupling the charging port and the supply port; a first material sensor configured to detect a remaining quantity of the resin pellets in the coupling path; and a control unit. The material storage unit includes a material supply mechanism configured to supply the resin pellets to the coupling path, and when the remaining quantity of the resin pellets detected by the first material sensor is less than a first reference value, the control unit controls the material supply mechanism to supply a predetermined quantity of the resin pellets to the coupling path.

Abstract: The present invention relates to a manufacturing device for manufacturing a large amount of micro-scaffolds for a long period of time such that stable and uniform particles can be fabricated. The manufacturing device comprises: a first solution storage portion for storing a polymer support structure solution; a second solution storage portion for storing an emulsifier solution; a gas storage portion connected to each of the first solution storage portion and the second solution storage portion; a pressure control portion for controlling the pressure of the transporting gas flowing into the first solution storage portion and the second solution storage portion from the pressurization portion, respectively; a scaffold injector portion for receiving the polymer support structure solution and the emulsifier solution provided by the transporting gas, respectively; and a scaffold generating portion for receiving the scaffold dispersion discharged through the scaffold injection portion.

Abstract: A plasticizing device includes: a flat screw having a groove formation surface in which a spiral groove is formed and configured to rotate about a rotation axis by a motor; a barrel having a facing surface facing the groove formation surface in a direction of the rotation axis; a heater configured to heat the material supplied between the groove formation surface and the facing surface; and a screw case accommodating the flat screw and having a supply port through which the material is supplied to the groove. The flat screw includes a first side surface in which an introduction port for introducing the material from the supply port into the groove is partially formed, and a second side surface provided on a side farther away from the barrel than the first side surface.

Abstract: There is provided a plasticizing device including a rotor which rotates around a rotational axis, and has a groove forming surface provided with a groove, a barrel which is opposed to the groove forming surface, and has a communication hole, and a first heating section configured to heat a material fed between the rotor and the barrel, wherein the material fed between the rotor and the barrel is plasticized and discharged from the communication hole due to a rotation of the rotor and heating by the first heating section.

Abstract: Articles of wear having one or more textiles that include a low processing temperature polymeric composition and a high processing temperature polymeric composition, and methods of manufacturing the same are disclosed. The low processing temperature polymeric composition and the high processing temperature polymeric composition can be selectively incorporated into a textile to provide one or more structural properties and/or other advantageous properties to the article. The textile can be thermoformed to impart such structural and/or other advantageous properties to the article of wear. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.