PLASTICS PREFORM FOR LARGE-VOLUME CONTAINERS AND PROCESS AND DEVICE FOR PRODUCING THIS PREFORM

A plastics preform for an inflatable large-volume container, in particular for a container with capacity of at least 5 liters, preferably at least 10 liters, has a closure region and an inflatable hollow body region. For reducing cycle time, the preform, or at least the inflatable hollow body region thereof, is composed of a plurality of layers, where the thickness of each layer is at least 2 mm, preferably at least 3 mm, and where the thickness of the individual layers is in essence identical. Multicomponent injection moulding technology can thus be used with the rotating table technique or with the indexing plate technique to produce the various layers simultaneously in a plurality of injection units in such a way as to give, after each shot, a finished thick-walled preform. Also described are a process for producing the plastics preform and an injection moulding machine. 116.-. (canceled)17. A preform of an inflatable large-volume container , said preform comprising a closure region and an inflatable hollow body region , at least said inflatable hollow body region being formed by multiple layers , each defined by a layer thickness , wherein the layer thicknesses differ as a function of a cooling rate of the layers within a range to allow production or forming of the layers within a substantially same cycle time.18. The preform of claim 17 , wherein the layer thickness of each layer is at least 2 mm.19. The preform of claim 17 , wherein the layer thickness of each layer is at least 3 mm.20. The preform of claim 17 , wherein an innermost one of the layers is made of a new material claim 17 , and remaining ones of the layers are made of recycled material.21. The preform of claim 17 , wherein the inflatable body has at least three layers.23. The preform of claim 22 , wherein the layer thicknesses of the layers differ no more than 10%.24. The preform of claim 22 , wherein the layer thicknesses of the layers differ no more than 20%.25. The preform of claim 17 , having ...

METHOD AND DEVICE FOR FORCIBLY INSERTING DROP INTO COMPRESSION MOLDING MACHINE, AND MOLDING DIE FOLLOW-UP TYPE METHOD AND DEVICE FOR SUPPLYING DROP

A method and device for continuously supplying molten synthetic resin drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings. At that time the holding mechanism on the rotary-and movable type drop supply is made to approach the rotating molding die and the rotation path of the holding mechanism is made to overlap with that of the molding die within a determined area to make the movement of the holding mechanisms follow that of the molding die. 1. A method for forcibly inserting a drop of a molding material into a concave of a molding female die in a compression molding machine , comprising:extruding a molten synthetic resin from an extrusion opening formed at the edge of an extrusion die head;holding and then cutting, or cutting and then holding, the molten synthetic resin to form into a determined quantity of the drop by a cutter placed at a synthetic resin accepting position which opposes to the extrusion die head;holding and conveying the drop by the holding mechanism;forcibly inserting the drop, at a discharging position on a molding female die, into the concave of a molding female die while the holding is released.2. A device for forcibly inserting a drop of a molding material into a concave of a molding female die in a compression molding machine , which comprises:a resin extruder to form a synthetic resin molding material into soften and molten condition by heating plasticization, the resin extruder comprising an extrusion opening formed at the edge of an extrusion die head attached to the resin extruder,a holder disposed at a synthetic resin accepting position opposing to the extrusion die head, ...

METHOD FOR PRODUCING A TOOTHBRUSH HANDLE HAVING AN INNER CAVITY

Methods of producing toothbrush handles having an inner cavity are provided. 1. A method for extrusion blow molding a toothbrush handle comprising:a) providing an extrusion blow mold having a longitudinal axis and a cavity, the cavity having a surface that defines a cross-sectional area; wherein the cavity has at least one of a maximum cross-sectional area, bordered by two smaller cross-sectional areas along the longitudinal axis of the blow mold or a minimum cross sectional area bordered by two greater cross-sectional areas along the longitudinal axis of the blow mold;b) extruding a parison comprising a thermoplastic material, the parison includes an interior cavity and an outer surface, wherein the outer surface defines a cross-sectional area of the parison;c) expanding the parison using a fluid to contact the cavity surface and produce a toothbrush handle having an inner cavity.2. The method of claim 1 , wherein a colorant is added to the parison prior to or during extrusion.3. The method of claim 1 , wherein the minimum cross-sectional area of the extrusion blow mold cavity is less than the cross-sectional area of the parison.4. The method of claim 1 , wherein the maximum cross-sectional area of the extrusion blow mold cavity is greater than the cross-sectional area of the parison.5. The method of claim 1 , wherein the fluid expands the cross-sectional area of the parison to the two greater cross-sectional areas of the extrusion blow mold cavity.6. The method of claim 1 , wherein the fluid expands the cross-sectional area of the parison to the maximum cross-sectional area of the extrusion blow mold cavity.7. The method of claim 1 , wherein the fluid is injected into the parison interior cavity.8. The method of claim 1 , wherein vacuum is applied between the parison outer surface and the extrusion blow mold cavity surface.9. The method of claim 1 , wherein the extrusion mold includes a label prior to extrusion of the parison.10. The method of claim 9 , wherein ...

METHOD OF PRODUCING REINFORCING FIBER SHEET

A method produces a reinforcing fiber sheet in which a plurality of bundles of reinforcing fibers lined up into one direction to form a plane are adhered to one another through a binder in an amount far smaller than that of the bundles. This method includes step (a) of placing a plurality of reinforcing fibers each having any length at any position on a flat plate, and fixing the reinforcing fibers onto the flat plate, step (b) of placing a binder onto the reinforcing fibers to be adhered onto the fibers, and step (c) of separating the reinforcing fibers from the flat plate. 114-. (canceled)15. A method of producing a reinforcing fiber sheet in which a plurality of bundles of reinforcing fibers lined up into one direction to form a plane are adhered to one another through a binder , comprising steps (a) and (b):(a) placing a plurality of bundles of reinforcing fibers each having a predetermined length at a predetermined position on a flat plate, and fixing the bundles of reinforcing fibers onto the flat plate, and(b) placing a binder onto the bundles of reinforcing fibers to be adhered onto the bundles.16. The method according to claim 15 , wherein the binder comprises a material having a stretchability of 150% or more.17. The method according to claim 15 , wherein the binder comprises fibers lined up into one direction.18. The method according to claim 15 , wherein the binder is a nonwoven fabric comprising short fibers and/or continuous fibers.19. The method according to claim 15 , wherein the binder is supplied in a melt-blown manner in which a resin is jetted out through pores to the atmosphere.20. The method according to claim 15 , wherein the binder is a film.21. The method according to claim 18 , comprising forming a plurality of cuts in the nonwoven fabric or the film.22. The method according to claim 15 , comprising forming a plurality of cuts in the reinforcing fiber sheet.23. The method according to claim 15 , wherein claim 15 , in step (a) claim 15 , the ...

TRIM COMPONENT FOR VEHICLE INTERIOR

A method for producing a trim component for vehicle interior is disclosed. The method may produce multilayer molded bodies (e.g. interior compartments/fittings for vehicles) in which a reverse side of a leather material is backed with a plastic by injection molding. In order to prevent the leather material from being damaged by the injection pressures and/or temperatures during the in-mold injection molding process, the method provides for introducing untreated leather material into the injection mold. 1. A method for producing a trim component for a vehicle interior comprising a leather material backed with a plastic material in an apparatus comprising a tool comprising the steps of:(a) placing an untreated leather material into the tool;(b) introducing molten plastic material into the tool to form a formed component comprising the leather material and the plastic material; and(c) removing the formed component from the tool.2. The method of wherein the untreated leather material comprises leather that is tanned.3. The method of wherein embossing is introduced in or on the leather material by the tool.4. The method of wherein a surface of the leather material provided with a color finish after the formed component is removed from the tool.5. The method of wherein a protective coating is applied to the color finish after application of the color finish.6. The method of wherein the formed component comprises a multilayer molded body of thermoplastic material and leather material.7. The method of wherein the untreated leather material comprises at least one of (a) tanned leather; (b) uncolored leather; (c) scrap leather; (d) crust leather.8. The method of wherein the leather material is at least one of (a) unstretched and untreated; (b) flat and uncurried; (c) cut from dried leather.9. The method of wherein the apparatus comprises an injection mold and the plastic material is introduced under pressure into a chamber of the injection mold.10. The method of wherein the ...

METHOD FOR PRODUCING SKIN-COVERED, EXPANDED BEAD MOLDED ARTICLE

A method for producing a skin-covered molded article including filling polypropylene-based resin expanded beads in a hollow space of a thermoplastic resin skin and feeding steam into the hollow space to fusion-bond the expanded beads together, the expanded beads showing specific DSC characteristics involving a specific high temperature peak(s) with specific heat of fusion. 1. A method for producing a skin-covered , expanded bead molded article comprising the steps of:providing a skin of a thermoplastic resin molded article defining a hollow space therewithin;filling polypropylene-based resin expanded beads in the hollow space; andthen feeding a heating medium into the hollow space through one or more heating medium feeding pins inserted into the hollow space to fusion-bond the expanded beads to each other and to form an expanded bead molded article that is covered with the skin;wherein the polypropylene-based resin expanded beads are prepared from a polypropylene-based resin having a melting point of 140 to 155° C.,wherein the polypropylene-based resin expanded beads have such a crystal structure that gives a DSC curve when a measurement specimen sampled from the polypropylene-based resin expanded beads is heated from 23° C. to 200° C. at a heating speed of 10° C./min, wherein a total heat of fusion ΔHt of the entire endothermic peaks of the DSC curve is more than 75 J/g,', 'a ratio ΔH2/ΔHt of a total heat of fusion ΔH2 of said at least one high temperature endothermic peak to the total heat of fusion ΔHt is 0.20 to 0.30, and', 'a heat of fusion of that portion of said at least one high temperature endothermic peak which is higher than the peak top temperature of a lowest temperature peak is 6 J/g or more, said lowest temperature peak being that high temperature endothermic peak which has the lowest peak top temperature among the peak top temperatures of said at least one high temperature endothermic peak., 'said DSC curve having an intrinsic endothermic peak ...

Method for continuous casting and granulation of strands from thermoplastic

A method for continuous casting and granulating strands of a thermoplastic material which uses a nozzle head having a plurality of nozzle apertures of a maximum diameter of 4 mm each, and water-moistened guide member for cooling and guiding the plastic strands exiting the nozzle aperture via inlet rollers to the inlet of the cutting unit for chopping up the plastic strands into granules approx. 2-3 mm in length. The flow rate of the melt, with the strands being cooled down on their way from the nozzles via the guide member the feed rollers of the cutting unit, of at least 100 m/min in the central spatial region of the nozzle apertures will be increased to such an extent that the cutting unit will chop up the strands at a cutting rate of >2,000 cuts/s.

METHOD FOR IMPROVING A BITE-SAFTE ARTIFICIAL TEAT AND LIKE PRODUCTS

A method of making an insert for a substantially solid cylindrical article that is constructed from a highly elastic material and braided fiber forming a mesh of very specific geometry, which supports any application that requires protection from cutting, puncture or similar damage while preserving high deformability of the article, particularly radial compressibility and/or axial elongation. 1. A method of making an insert for a substantially solid cylindrical article , the method comprising the steps of:extruding a core of silicone material;wrapping fibers to form a braided fiber mesh on the extruded core;forming an overcoat layer of silicone material over the braided fiber and core to form a core-braid-overcoat product;heat-curing the core-braid-overcoat product; andcutting the core-braid-overcoat product to produce the insert.2. The method according to claim 1 , wherein the step of extruding the core of silicone material is performed over a mandrel.3. The method according to claim 2 , further comprising the step of removing the mandrel after the step of extruding the core of silicone material claim 2 , but before the step of cutting the heat-cured core-braid-overcoat product.4. The method according to further comprising the steps of: a first mold part containing an interior cavity to form the substantially solid cylindrical article;', 'a second mold part to close the first mold part; and', 'a sprue extending from an outer surface of the mold to the interior cavity of the first mold part;, 'providing a mold comprisingplacing the insert into the interior cavity of the first mold part;closing the first mold part and the second mold part; andinjecting silicone material into the mold.5. The method according to claim 1 , wherein the core of the insert has a hardness in the range of Shore A 10 to Shore A 25.6. The method according to claim 1 , wherein the overcoat layer has a hardness in the range of Shore A 10 to Shore A 25.7. The method according to claim 1 , wherein ...

FIBER-REINFORCED MOLDING COMPOUNDS AND METHODS OF FORMING AND USING THE SAME

A method of forming a fiber-reinforced molding compound. The method includes pre-impregnating carbon reinforcing fibers with a polymeric material to form one or more pre-impregnated continuous strands having at least 30% of the fibers protected by the polymeric material. The method further includes storing the one or more pre-impregnated continuous strands in bulk. The method also includes introducing the one or more pre-impregnated continuous strands into an extruder, forming a molding compound from the one or more pre-impregnated continuous strands, dispensing the molding compound from the extruder, and using the molding compound to produce a part. 1. A method comprising:pre-impregnating carbon reinforcing fibers comprising carbon reinforcing filaments with a polymeric material to form one or more pre-impregnated continuous strands including a polymer matrix material formed from the polymeric material;storing the one or more pre-impregnated continuous strands in bulk;introducing the one or more pre-impregnated continuous strands into an extruder;forming a molding compound from the one or more pre-impregnated continuous strands;dispensing the molding compound from the extruder; andusing the molding compound to produce a part having an average fiber length of at least 2 millimeters for the pre-impregnated carbon reinforcing fibers.2. (canceled)3. The method of claim 1 , wherein the reinforcing fibers are of continuous or discontinuous lengths.4. The method of claim 1 , wherein the reinforcing fibers include fibers of at least two different lengths.5. The method of claim 1 , wherein the polymeric material includes a thermoplastic resin.6. The method of claim 1 , wherein the polymeric material is a thermoset resin.7. The method of claim 1 , further comprising cutting the one or more pre-impregnated strands within a cutting zone within a screw portion of the extruder.8. The method of claim 1 , further comprising heating the one or more pre-impregnated continuous ...

Blank container preform

A blank preform for being blow-molded to form a container is provided herein. The blank preform comprises a cylindrical portion that includes a tapered portion that extends to a finish portion. The finish portion includes an opening to an interior of the preform. The finish portion comprises one or more wall thickness portions for blow-molding any of a tamper evidence ledge, one or more threads, a neck portion, and a handling valley. The handling valley facilitates air-conveying the container along a manufacturing line. The cylindrical portion comprises at least one wall thickness suitable for blow-molding any of a base, a portion of a bell, a sidewall, and a shoulder between the sidewall and the bell. The tapered portion comprises one or more wall thickness portions that are suitable for blow-molding any of a portion of the bell, a blown neck, and a blown support ledge.

Molded Catheter Tip

A catheter has extruded length of tubing and an injection molded tip that facilitates insertion of the catheter into the body. The catheter is fabricated by the steps of providing the tubing, for example, by extruding the tubing from a thermoplastic resin cutting the tubing to the desired length, inserting a plug into the tubing, inserting one end of the tubing into an injection mold cavity, creating and forming a tip in an injection molding step, and demolding the tubing with the formed tip. 1. A catheter , comprising:a length of tubing with an axial lumen defined therein, the lumen having an inside diameter, the tubing terminating at an end;a plug inserted in the lumen a distance sufficient to axially recess the plug from the end of the tubing, at least a portion of the plug having a maximum outside diameter at least as large as the inside diameter of the lumen; anda tip attached to an end of the tubing, the tip including a stubshaft that extends into the lumen and is joined to the plug at a plug-to-tip bond line.2. The catheter of further comprising a hydrophilic coating on the exterior surface of the tubing and tip.3. The catheter of wherein the tubing has an inner wall and an outer wall.4. The catheter of wherein the tubing has an inner wall and an outer wall and further comprising a hydrophilic coating on the exterior surface of the outer wall and tip.5. The catheter of wherein the plug has at least one tapered end.6. The catheter of wherein the tip has an apex at the free end thereof with a depression formed in the apex.7. (canceled)8. (canceled)9. A method of making a catheter claim 1 , comprising the steps of:a) providing tubing having an axial lumen defined therein, the lumen having an inside diameter;b) cutting the tubing to the desired catheter length;c) forming a plug, at least a portion of the plug having an outside diameter at least as large as the inside diameter of the lumen;d) pre-heating the plug;e) inserting the pre-heated plug into the lumen at ...

ENCODED CONSUMABLE MATERIALS AND SENSOR ASSEMBLIES FOR USE IN ADDITIVE MANUFACTURING SYSTEMS

A consumable material and sensor assembly for use in an additive manufacturing system, the consumable material comprising an exterior surface having encoded markings that are configured to be read by the sensor assembly, where the consumable material is configured to be consumed in the additive manufacturing system to build at least a portion of a three-dimensional model. 1. An encoded filament for use in an additive manufacturing system having an extrusion head , the encoded filament comprising:compositionally, a consumable material;a longitudinal length;volume-increment markings that are offset from each other along the longitudinal length of the encoded filament by increment lengths that vary to define segments of the encoded filament having volumes that are substantially the same, wherein the volume-increment markings are configured to be read by an optical sensor of the additive manufacturing system; anda cross-sectional geometry configured to be received by a liquefier of the extrusion head for building a three-dimensional model from the consumable material.2. The encoded filament of claim 1 , wherein the cross-sectional geometry comprises a substantially circular geometry having an average diameter ranging from about 0.8 millimeters to about 2.5 millimeters.3. The encoded filament of claim 1 , wherein the cross-sectional geometry has a width and thickness claim 1 , wherein the width of the cross-sectional geometry ranges from about 1.0 millimeter to about 10.2 millimeters claim 1 , and wherein the thickness of the cross-sectional geometry ranges from about 0.08 millimeters to about 1.5 millimeters.4. The encoded filament of claim 1 , wherein the volume-increment markings extend substantially along an entirety of the longitudinal length.5. The encoded filament of claim 1 , wherein the consumable material comprises a thermoplastic material claim 1 , and wherein the volume-increment markings comprise an ultraviolet-activated material.6. The encoded filament of ...

PIEZOELECTRICITY PVDF MATERIALS AND METHOD FOR MAKING THE SAME

This invention provides kilometer-long, endlessly parallel, spontaneously piezoelectric and thermally stable poly(vinylidene fluoride) (PVDF) ribbons using iterative size reduction technique based on thermal fiber drawing method. The PVDF ribbons are thermally stable and conserve the polar γ phase even after being exposed to heat treatment above the melting point of PVDF. A single PVDF ribbon has an average effective piezoelectric constant as −58.5 pm/V. PVDF ribbons in the invention are promising structures for constructing devices such as highly efficient energy generators, large area pressure sensors, artificial muscle and skin, due to the unique geometry and extended lengths, high polar phase content, high thermal stability and high piezoelectric coefficient. 1. A method for making piezoelectricity material with spontaneous high piezoelectricity , comprising steps of:preparing a first multi-material preform including a poly (ether sulfone) (PES) matrix and a PVDF slab contained in the PES matrix;drawing a plurality of first composite ribbons from the first multi-material preform at a first temperature above glass transition temperature of PES matrix and melting point of PVDF slab; andextracting a plurality of PVDF ribbons out of the composite ribbons by a solvent.2. The method of claim 1 , further comprising:preparing a second multi-material preform including the PES matrix and a bundle of first composite ribbons contained in the PES matrix; anddrawing a plurality of second composite ribbons from the second multi-material preform at a temperature above glass transition temperature of PES and melting point of PVDF.3. The method of claim 2 , further comprising:preparing a third multi-material preform including the PES matrix and a bundle of second composite ribbons contained in the PES matrix; anddrawing a plurality of third composite ribbon from the second multi-material preform at a temperature above glass transition temperature of PES and melting point of PVDF. ...

METHODS FOR INCREASING A RETENTION FORCE BETWEEN A POLYMERIC SCAFFOLD AND A DELIVERY BALLOON

A medical device-includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention and maintaining an inflated balloon during the diameter reduction and prior and subsequent dwell periods. 115-. (canceled)16. A method for crimping , comprising the steps of:providing a scaffold comprising polymer characterized by a glass transition temperature (TG); and reducing the scaffold diameter from a first diameter to a second diameter,', 'removing the scaffold from the crimping mechanism,', 'placing the scaffold back into the crimping mechanism, wherein the scaffold is aligned between balloon markers when the scaffold is placed back into the crimping mechanism, and', 'reducing the scaffold diameter to a final diameter that is less than the second diameter,', 'wherein a ratio of the first diameter to the second diameter is greater than a ratio of the second diameter to the final diameter., 'using a crimping mechanism, crimping the scaffold to a balloon while the scaffold has a crimping temperature of between 5 to 15 degrees below TG including maintaining a pressure in the balloon as the scaffold diameter is being reduced in size, the crimping including'}17. The method of claim 16 , wherein the balloon pressure is maintained when the scaffold diameter is being reduced to the final diameter.18. The method of claim 17 , wherein the ratio of the starting diameter to the intermediate diameter is about 50% and the ratio of the intermediate diameter to the final diameter is about 30%.19. The method of claim 18 , wherein the crimping temperature is about 48° C.20. The method of claim 16 , wherein a final crimped diameter for the scaffold has a retention force that is greater than 1.0 lbs claim 16 , the scaffold has a length of no more than 18 mm and the final diameter is at least 2.5 times less than the starting diameter.21. ...

SHUTTER COVERED ON SOUND HOLE OF LOUDSPEAKER MODULE AND ASSEMBLING METHOD THEREOF, LOUDSPEAKER MODULE

The present invention provides a blocking piece covering the sound hole of a loudspeaker and an assembling method thereof, and a loudspeaker module. The blocking piece covering the sound hole of the loudspeaker module is arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece is made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case are formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention have advantages of good acoustic performance, high reliability, high space utilization rate and high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality. 1. A blocking piece covering a sound hole of a loudspeaker module , wherein the blocking piece is disposed at a position where the sound hole is located on a case of the loudspeaker module and is covered on the sound hole , the blocking piece is a nonmetallic flexible net , and is integrally formed on the case by injection moulding.2. The blocking piece covering the sound hole of a loudspeaker module according to claim 1 , wherein the thickness of the blocking piece is in the range of 0.05 mm to 0.3 mm claim 1 , and the diameter of the meshes of the blocking piece is in the range of 0.03 mm to 0.1 mm.3. The blocking piece covering the sound hole of a loudspeaker module according to claim 2 , wherein the thickness of the blocking piece is in the range of 0.05 mm to 0.1 mm claim 2 , and the diameter of the meshes of the blocking piece is in the range of 0.03 mm to 0.05 mm.4. The blocking piece covering the sound hole of a loudspeaker module according to claim 1 , wherein the case is made of a nonmetallic material.5. The ...

Deep Drawn Microcellularly Foamed Polymeric Containers Made Via Solid-State Gas Impregnation Thermoforming

The present invention is directed to a deep draw microcellularly foamed polymeric container comprising a polymeric sidewall integrally connected to a polymeric base along a bottom edge. The polymeric sidewall and base are contiguous with each other and define a shape of an open top container. The polymeric sidewall and base have a contiguous inner microcellular foam structure (having average cell diameters ranging from about 5 to about 100 microns) surrounded by a smooth outer skin layer integrally connected therewith. The polymeric sidewall defines a container height and a top opening, wherein the top opening defines a top opening width, and wherein the polymeric base defines a container base width, and wherein the area defined by the top opening is greater than the area defined by the polymeric base, and wherein the ratio of the container height (h) to the top opening width (w) is greater than about 1:1 (h:w). 15.-. (canceled)6. A method for forming a thermoplastic material into a desired shape , the method comprising: includes a core and a surface layer adjacent the core, and', 'has a threshold degree of crystallinity above which bubbles will not nucleate when the gas-infused thermoplastic material is heated to its glass-transition-temperature, and, "increasing the thermoplastic material's degree of crystallinity by infusing the thermoplastic material with a gas for a period, wherein the thermoplastic material:"} ["greater than the core's degree of crystallinity, and", "less than the thermoplastic material's threshold degree of crystallinity;"], "wherein the increase in the material's degree of crystallinity includes the surface layer's degree of crystallinity being:"}allowing, for a period, gas infused into the thermoplastic material to migrate out of the material;nucleating bubbles in the gas-infused thermoplastic material by causing the gas-infused thermoplastic material to reach a temperature that is at least the glass-transition-temperature of the gas- ...

Injection Molded Preform and Manufacture Thereof

An injection molded thermoplastic preform for blow moulding to form a container, the preform base of a central part having a first, downwardly and radially inwardly tapering portion therebetween which increases in thickness from a radially outer end of the first tapering portion adjacent to the hollow transition portion to a radially inner end of the first tapering portion adjacent to the gate part and the middle part opposite the gate part can allow the injected resin to be urged back through the gate at the end of the injection moulding cycle at a lower fluid pressure in the vicinity of the gate which is associated with high resin temperatures. The technical effect achieved by the first tapering portion is that crystallinity in the gate area is minimized or eliminated, which avoids or minimizes partial blocking of the gate which would otherwise restrict the injected resin from being urged back through the gate at the end of the injection moulding cycle. 1. An injection moulded thermoplastic preform for blow moulding to form a container , the preform comprising a lower closed base portion , a hollow body portion , a hollow transition portion between the lower closed base portion and the hollow body portion , and an upper open end portion adjacent to an upper part of the hollow body portion , wherein the closed base portion comprises a central part which extends over at least 50% of an internal radius of a lower end of the hollow body portion , the central part having an external surface which comprises an outwardly raised gate part surrounding a central longitudinal axis of the preform and a first peripheral part surrounding the gate part , the first peripheral part being convex and an internal surface which is concave and comprises a middle part opposite the gate part and a second peripheral part surrounding the middle part , wherein the first and second peripheral parts define a first , downwardly and radially inwardly tapering portion therebetween which ...

METHOD FOR MANUFACTURING GOLF CLUB HEAD PART

A method for manufacturing a golf club head part includes the steps of: sewing at least one roving material onto a base material, so as to form a laminate blank; placing the laminate blank into a cavity of a mold assembly; vacuuming the cavity, and then impregnating a resin material into the laminate blank that is placed in the cavity under vacuum; and thermoforming the laminate blank and the resin material in the cavity into the golf club head part. 1. A method for manufacturing a golf club head part , comprising the steps of:sewing at least one roving material onto a base material, so as to form a laminate blank;placing the laminate blank into a cavity of a mold assembly;vacuuming the cavity, and then impregnating a resin material into the laminate blank placed in the cavity under vacuum; andthermoforming the laminate blank and the resin material in the cavity into the golf club head part.2. The method according to claim 1 , wherein in the sewing step claim 1 , at least one thread material is further stitched to the base material to fix the at least one roving material on the base material.3. The method according to claim 1 , wherein the laminate blank is tailored to have a predetermined shape by trimming the base material before the placing step.4. The method according to claim 1 , wherein the at least one roving material is selected from the group consisting of carbon fibers claim 1 , glass fibers claim 1 , and commingled yarns.5. The method according to claim 2 , wherein the at least one thread material is selected from the group consisting of a cotton yarn claim 2 , a carbon fiber claim 2 , a glass fiber claim 2 , and combinations thereof.6. The method according to claim 1 , wherein the base material is selected from the group consisting of glass fibers claim 1 , thermoplastic polymers claim 1 , and a combination thereof. This application claims priority to Taiwanese Invention Patent Application No. 109132326, filed on Sep. 18, 2020.The disclosure relates to a ...

Method of molding a shell part of a wind turbine blade

The present invention relates to a method of molding a shell part of a wind turbine blade comprising the steps of providing a mold ( 64 ) comprising a mold cavity ( 66 ) with a root end ( 68 ) and an opposing tip end ( 70 ), arranging one or more preformed sheets ( 72 a, 72 b, 72 c ) in the mold cavity ( 66 ), wherein each preformed sheet comprises a mixture of fibre rovings ( 82 ) and a binding agent, wherein the fibre rovings are at least partially joined together by means of the binding agent, and injecting the one or more preformed sheets ( 72 a, 72 b, 72 c ) with a resin to mold the shell part. The present invention also relates to a shell part of a wind turbine blade obtainable by said method, to a preformed sheet for use in said method and to a method of manufacturing said preformed sheet.

A METHOD OF MEASURING THE THICKNESS OF A FIBER TEXTURE WOUND ONTO AN IMPREGNATION MANDREL, AND A WINDER MACHINE IMPLEMENTING SUCH A METHOD

A method of measuring the thickness of a fiber texture wound on an impregnation mandrel for fabricating an annular structural part of a turbine engine out of composite material, the method including, prior to winding the fiber texture, acquiring a reference distance between an outside surface of the impregnation mandrel and a distance sensor positioned facing the outside surface of the impregnation mandrel, while winding the fiber texture, acquiring at least one real distance between the distance sensor and the outside surface of the fiber texture wound on the impregnation mandrel, and calculating the real thickness of the fiber texture wound on the impregnation mandrel by subtracting the real distance from the reference distance. 1. A method of measuring a thickness of a fiber texture wound on an impregnation mandrel for fabricating an annular structural part of a turbine engine out of composite material , the method comprising:prior to winding the fiber texture on the impregnation mandrel, acquiring a reference distance between an outside surface of the impregnation mandrel and a distance sensor positioned facing said outside surface of the impregnation mandrel;while winding the fiber texture on the impregnation mandrel, acquiring at least one real distance between the distance sensor and the outside surface of the fiber texture wound on impregnation mandrel; andcalculating a real thickness of the fiber texture wound on the impregnation mandrel by subtracting the real distance from the reference distance.2. A method according to claim 1 , wherein the reference distance and the real distance are averages calculated from measurements taken by at least three distance sensors positioned facing the outside surface of the impregnation mandrel and in alignment along an axis parallel to an axis of rotation of the impregnation mandrel.3. A method according to claim 1 , wherein the reference distance and the real distance comprise independent values obtained from ...

NON-STANDARD RESIN-INFUSED FIBER BUNDLES

Non-standard, resin-infused fiber bundle includes localized regions of fibers having a sub-nominal amount of polymer resin positioned along its length. These regions function as “bending regions,” where the non-standard resin-infused fiber bundle can be readily deformed by virtue of the reduced amount of resin. The bending regions segregate the non-standard resin-infused fiber bundle into what is, effectively, discrete (smaller) segments of (standard) resin-infused fiber bundle. The ability to easily manipulate the non-standard, resin-infused fiber bundle via the bending regions is useful for creating fiber-bundle-based preforms, and preform charges (assemblages of fiber-bundle-based preforms). 1. A non-standard bundle of unidirectional , same-length , continuous fibers infused with resin (“non-standard , resin-infused fiber bundle”) , wherein the non-standard resin-infused fiber bundle comprises plural sections , some of the plural sections having a first length , the sections having a first length include a first group thereof , each section in the first group defines a first nascent preform having m bending regions , wherein m is a non-zero integer , the m bending regions segregating each section in the first group into m+1 segments of resin-infused fiber bundle , wherein:each of the m+1 segments includes a nominal amount of the resin, andeach of the m bending regions includes less than the nominal amount of the resin.2. The non-standard claim 1 , resin-infused fiber bundle of wherein m=1 and the m+1 segments have identical lengths.3. The non-standard claim 1 , resin-infused fiber bundle of wherein m=1 and the m+1 segments have unequal lengths.4. The non-standard claim 1 , resin-infused fiber bundle of wherein a length of each of the m+1 segments is based on a first preform geometry claim 1 , wherein the first preform geometry is based on a first desired fiber alignment within a part.5. The non-standard claim 1 , resin-infused fiber bundle of wherein the sections ...

SHUTTER COVERED ON SOUND HOLE OF LOUDSPEAKER MODULE AND ASSEMBLING METHOD THEREOF, LOUDSPEAKER MODULE

A blocking piece covering the sound hole of a loudspeaker module may be arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece may be made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case may be formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention may provide good acoustic performance, high reliability, high space utilization rate and/or high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality. 1. A blocking piece covering the sound hole of a loudspeaker module , characterized in that the blocking piece is disposed at a position where the sound hole is located on the case of the loudspeaker module and is covered on the sound hole , the blocking piece is a nonmetallic flexible net , and is integrally formed on the case by injection moulding.2. The blocking piece covering the sound hole of a loudspeaker module according to claim 1 , characterized in that the thickness of the blocking piece is in the range of 0.05 mm to 0.3 mm claim 1 , and the diameter of the meshes of the blocking piece is in the range of 0.03 mm to 0.1 mm.3. The blocking piece covering the sound hole of a loudspeaker module according to claim 2 , characterized in that the thickness of the blocking piece is in the range of 0.05 mm to 0.1 mm claim 2 , and the diameter of the meshes of the blocking piece is in the range of 0.03 mm to 0.05 mm.4. The blocking piece covering the sound hole of a loudspeaker module according to claim 1 , characterized in that the case is made of a nonmetallic material.5. The blocking piece covering the sound hole of a loudspeaker module according to claim 4 , ...

BLOW MOLDED WASTE CART WITH INSERT MOLDED LIFT POCKET REINFORCEMENT

A body for a blow molded waste cart and a waste cart having a blow-molded hollow body having a front wall and a central channel formed in the front wall, a lift pocket formed in the central channel, and a lift pocket reinforcement insert molded into the lift pocket. The lift pocket reinforcement has a main body formed with a longitudinal axis, an upper face, a rear face including a generally planar lift contact surface and a plurality of retention keys that retain the polymer of the parison after molding. The retention keys may be undercut to improve retention of the polymer. The lift pocket reinforcement may be blow-molded and the retention keys may be in the shape of a section of a trapezoidal cone. 1. A blow molded waste cart , comprising:a blow-molded hollow body having a front wall and a central channel formed in the front wall;a floor, the body and floor form a waste receptacle;a lift pocket formed in the central channel;a lift pocket reinforcement insert molded into the lift pocket.2. The blow molded waste cart of claim 1 , where in the lift pocket reinforcement comprises:a main body formed with a longitudinal axis,an upper face;a rear face including a generally planar lift contact surface; anda plurality of retention keys.3. The blow molded waste cart of claim 2 , wherein the retention keys are spaced along the upper face.4. The blow molded waste cart of claim 2 , wherein a plurality of retention keys are formed on the rear face.5. The blow molded waste cart of claim 2 , wherein the retention keys are undercut.6. The blow-molded waste cart of claim 1 , wherein the lift pocket reinforcement is blow-molded.7. The blow-molded waste cart of claim 1 , wherein the retention key has a generally trapezoidal top surface.8. The blow-molded waste cart of claim 7 , wherein the retention key is a section of a trapezoidal cone.9. A blow molded body for a waste cart claim 7 , comprising:a blow-molded hollow body having a front wall and a central channel formed in the front ...

MOLDED ARTICLE OF FIBER-REINFORCED RESIN AND COMPRESSION MOLDING METHOD THEREFOR

A molded article of a fiber-reinforced resin contains at least a bundled aggregate [A] of discontinuous reinforcing fibers and a matrix resin [M], wherein the average layer thickness h in the molded article of the fiber-reinforced resin is 100 μm or less and the CV value of the average layer thickness h is 40% or less; and a compression molding method therefor. It is possible to reliably and greatly reduce the occurrence of stress concentration in the molded article and to thereby achieve higher mechanical properties and further reduce variation in the mechanical properties. 112-. (canceled)13. A molded article of a fiber-reinforced resin containing at least a bundled aggregate [A] of discontinuous reinforcing fibers and a matrix resin [M] , wherein the average layer thickness h in said molded article of the fiber-reinforced resin is 100 μm or less , and a CV value of said average layer thickness h is 40% or less.14. The molded article according to claim 13 , wherein claim 13 , when the molded article is subjected to ashing treatment claim 13 , 20 bundled aggregates [A] are selected claim 13 , the ratio 1/L of the average fiber bundle length 1 to the average fiber length L of the selected bundled aggregates [A] is 1.1 or more claim 13 , and the flatness rate calculated from the ratio w/h of the width of fiber bundle w claim 13 , obtained by dividing the average projection area S of the bundled aggregate [A] by the average fiber length L claim 13 , to the average layer thickness h is 5 or more.15. The molded article according to claim 13 , wherein cross-sectional observation is carried out in a homogeneous region of the molded article of the fiber-reinforced resin claim 13 , and 80% or more of end portions of bundled aggregates [A] claim 13 , which are oriented with an angle α between a fiber direction and a plane of the cross-sectional observation within ±10° claim 13 , among the observed bundled aggregates [A] claim 13 , have a taper angle δ of 10° or less.17. The ...

Laminate Stitching Method for Improved Fiber Logistics and Placement Precision

In one embodiment, a method for forming a dry lamination for a composite fiber material structure, for example a wind turbine blade, includes cutting at least two plies of composite fiber material according to a predetermined pattern, arranging the at least two cut plies of composite fiber material in a predetermined arrangement relative to each other, stitching the at least two cut plies together using a thread to secure the at least two cut plies in the predetermined arrangement to form the dry lamination, and spooling the dry lamination into a single roll. The dry lamination can then be transported without misaligning the plies and placed into a resin infusion tool without requiring manual placement of individual plies of composite fiber material. 1. A method for forming a dry lamination for a composite fiber material structure , the method comprising:cutting at least two plies of composite fiber material according to a predetermined pattern;arranging the at least two cut plies of composite fiber material in a predetermined arrangement relative to each other;stitching the at least two cut plies together using a thread to secure the at least two cut plies in the predetermined arrangement to form the dry lamination; andspooling the dry lamination into a single roll.2. The method of claim 1 , further comprising:arranging a third cut ply of composite fiber material in between the at least two cut plies such that an edge of the third cut ply is positioned a distance from an edge of the dry lamination; andstitching the at least two cut plies and the third cut ply using a thread such that the edge of the third cut ply is secured at the distance from the edge of the dry lamination.3. The method of claim 1 , further comprising:arranging a plurality of cut plies into a fiber stack;stitching the fiber stack using a thread to secure the positions of the plurality of cut plies within the fiber stack;arranging the fiber stack between the at least two cut plies in a ...

REINFORCING STRUCTURE MADE OF A SHEET-LIKE CELLULAR BASE MATERIAL AND METHOD FOR MANUFACTURING A THREE-DIMENSIONALLY DEFORMABLE, SHEET-LIKE REINFORCING STRUCTURE

A reinforcing structure made of a sheet-like cellular base material which comprises material attenuations () in a distribution over its area in a view from above, wherein the material attenuations sub-divide the base material into a multitude of material islands (R; T) which are delineated from each other by the material attenuations () but are still connected to each other, wherein 1. A reinforcing structure made of a sheet-like cellular base material which comprises material attenuations in a distribution over its area in a view from above , wherein the material attenuations sub-divide the base material into a multitude of material islands which are delineated from each other by the material attenuations but are still connected to each other , wherein(a) the material islands are convex base polygons in a view from above;(b) a respective plurality of the material islands jointly form a convex compound polygon in a view from above; and(c) the compound polygons differ, in their number of corners and/or in a ratio of the lengths of their sides, from the base polygons which form the material islands.2. The reinforcing structure according to claim 1 , wherein the respective compound polygon is regular.3. The reinforcing structure according to claim 1 , wherein the material islands are rhombi or triangles claim 1 , and the respective compound polygon is a hexagon.4. The reinforcing structure according to claim 1 , wherein the material attenuations or only a subset of the material attenuations each extend in a strip-shaped depression along which the cellular base material exhibits a greater density than in the remaining region of the material islands.5. The reinforcing structure according to claim 1 , wherein the material attenuations extending in the compound polygons each extend in a strip-shaped depression along which the cellular base material exhibits a greater density than in the remaining region of the material islands.6. The reinforcing structure according to ...

Continuous Polymeric Liner Production Methods for Conformable Pressure Vessels

A method and apparatus for forming a pressure vessel liner are disclosed. One method includes forming an extruded tube by extruding a parison through a die and a mandrel and forming main body sections and return line sections in the extruded tube according to a first pattern. A cross-sectional area of the return line sections is smaller than a cross-sectional area of the main body sections. The method further includes changing the pattern according to which the main body sections and the return line sections are formed from the first pattern to a second pattern without stopping the forming of the extruded tube and forming the main body sections and the return line sections in the extruded tube according to the second pattern. 1. A method for forming a pressure vessel liner , comprising:forming an extruded tube by extruding a parison through a die and a mandrel;forming main body sections and return line sections in the extruded tube according to a first pattern, wherein a cross-sectional area of the return line sections is smaller than a cross-sectional area of the main body sections;changing the pattern according to which the main body sections and the return line sections are formed from the first pattern to a second pattern without stopping the forming of the extruded tube; andforming the main body sections and the return line sections in the extruded tube according to the second pattern.2. The method of claim 1 , wherein:forming the main body sections and the return line sections in the extruded tube according to the first pattern includes using a corrugator to apply circulating pairs of mold elements in the first pattern to the extruded tube, wherein the pairs of mold elements form a profile of an outside geometry of each section of the pressure vessel liner;changing the pattern includes selectively removing pairs of mold elements in the first pattern from the corrugator and replacing the removed pairs of mold elements with pairs of alternative mold elements in ...

PREFORM ASSEMBLY, DOUBLE CONTAINER, AND METHOD OF MANUFACTURING DOUBLE CONTAINER

A preform assembly includes: an outer preform that includes an outer mouth portion and a stretch portion connected to the outer mouth portion and in which a recess extending in a vertical direction is provided on an inner surface of the stretch portion; and an inner preform that includes an inner mouth portion and a stretch portion connected to the inner mouth portion, wherein an outside air introduction port communicating with a part between the outer preform and the inner preform is provided in a mouth portion composed of the outer mouth portion and the inner mouth portion located on an inner side of the outer mouth portion. 1. A preform assembly comprising:an outer preform that includes a tubular outer mouth portion and a stretch portion connected to the outer mouth portion and in which a recess or ridge extending in a vertical direction is provided on an inner surface of the stretch portion; andan inner preform that includes a tubular inner mouth portion and a stretch portion connected to the inner mouth portion,wherein an outside air introduction port communicating with a part between the outer preform and the inner preform is provided in a mouth portion composed of the outer mouth portion and the inner mouth portion located on an inner side of the outer mouth portion.2. The preform assembly according to claim 1 , wherein the stretch portion in the outer preform has a diameter decrease portion in which an inner diameter gradually decreases downward from the outer mouth portion claim 1 , and the recess or ridge is provided in the diameter decrease portion.3. The preform assembly according to claim 1 , wherein the outside air introduction port is formed by a through hole passing through the outer mouth portion claim 1 , anda ridge extending in the vertical direction is provided on an outer surface of the inner preform.4. A double container comprising:an outer layer body that includes a tubular outer mouth portion and a bottomed tubular barrel portion connected to ...

HOUSING, ELECTRONIC DEVICE USING SAME, AND METHOD FOR MAKING SAME

A housing includes a base. The base has a number of main portions separated by one or more portions having a number of openings formed therein. Each of the number of openings has a metal strip therebetween thereby forming a series of openings and metal strips. Each of the openings has non-conductive members being formed therein. The metal strips are fixed together by the non-conductive members to form a metal strip assembly. The metal strips and the main portions are fixed together by the non-conductive members. 1. A housing , comprising:a base,the base having a plurality of main portions separated by one or more portions having a plurality of openings formed therein, each of the plurality of openings having a metal strip therebetween thereby forming a series of openings and metal strips, each of the openings having non-conductive members being formed therein, the metal strips fixed together by the non-conductive members to form a metal strip assembly, andwherein the metal strips and the main portions are fixed together by the non-conductive members.2. The housing as claimed in claim 1 , wherein the metal strips and the main portions are dielectrically connected by the non-conductive members.3. The housing as claimed in claim 1 , wherein the plurality of openings divide the base into at least two main portions claim 1 , the at least two main portions are separated from each other or connected to each other through at least one portion of the base adjacent to the openings.4. The housing as claimed in claim 1 , wherein each surface of each metal strip attached to the non-conductive members defines a plurality of holes claim 1 , each surface of each non-conductive member attached to the metal strips comprises a plurality of ribs claim 1 , the ribs are embedded and fixed into the holes.5. The housing as claimed in claim 4 , wherein a diameter of each hole is about 15 μm to about 800 μm.6. The housing as claimed in claim 1 , wherein a surface of each non-conductive ...

METHOD OF FABRICATING A BLADE PLATFORM OUT OF COMPOSITE MATERIAL WITH INTEGRATED GASKETS FOR A TURBINE ENGINE FAN

There is provided a method of fabricating a blade platform out of composite material with integrated gaskets for a turbine engine fan, the platform including a base and a stiffener, the method including using three-dimensional weaving to make a single-piece fiber blank with a plurality of longitudinal yarn layers extending in a direction corresponding to a longitudinal direction of the base of the platform; shaping the fiber blank to form a fiber preform having a first portion forming a base preform and a second portion forming a stiffener preform; positioning platform gaskets at side margins of the first portion of the fiber preform forming a base preform; placing the fiber preform with the gaskets in an injection mold; injecting resin into the injection mold; compacting the assembly; heating the injection mold to solidify the resin; and unmolding the resulting platform. 1. A method of fabricating a blade platform out of composite material with integrated gaskets for a turbine engine fan , the platform comprising a base extending along a longitudinal direction and presenting two opposite faces and a stiffener that extends from one of the faces of the base , the method comprising:using three-dimensional weaving to snake a single-piece fiber blank with a plurality of longitudinal yarn layers extending in a direction corresponding to a longitudinal direction of the base of the platform and interlinked by yarns of a plurality of transverse yarn layers, while leaving between the longitudinal yarn layers two main zones of non-interlinking that are open, each extending from a side edge of the fiber blank for the purpose of forming a stiffener preform;shaping the fiber blank to form a fiber preform having a first portion forming a base preform and a second portion forming a stiffener preform;positioning platform gaskets at side margins of the first portion of the fiber preform forming a base preform;placing the fiber preform with the gaskets in an injection mold;injecting ...

BLADE COMPRISING LANDS WITH A STIFFENER

A preform for a turbine engine blade, the preform comprising a main fiber preform obtained by three-dimensional weaving and comprising a first longitudinal segment suitable for forming a blade root (), a second longitudinal segment extending the first longitudinal segment upwards, and suitable for forming an airfoil portion (), and a first transverse segment extending transversely from the junction between the first and second longitudinal segments, and suitable for forming a first platform (), wherein the preform also includes at least one stiffener () fitted on the main fiber preform along at least a portion of the distal edge of the first transverse segment. 1. A preform for a turbine engine blade , the preform comprising a main fiber preform obtained by three-dimensional weaving and comprising:a first longitudinal segment suitable for forming a blade root;a second longitudinal segment extending the first longitudinal segment upwards, and suitable for forming an airfoil portion; anda first transverse segment extending transversely from the junction between the first and second longitudinal segments, and suitable for forming a first platform;wherein the preform also includes at least a stiffener fitted on the main fiber preform along at least a portion of the distal edge of the first transverse segment.2. A preform according to claim 1 , wherein the stiffener is a shim possessing a U-shaped section and gripping the distal edge of the first transverse segment.3. A preform according to claim 2 , wherein the top end of the shim engages in a setback formed in the top surface of the first transverse segment so that the top surface of the shim is flush with the top surface of the first transverse segment.4. A preform according to claim 1 , wherein the stiffener is a box shape fitted against the bottom surface of the first transverse segment.5. A preform according to claim 1 , wherein the stiffener possesses an axial spline or an axial notch configured to co-operate ...

CORRUGATED HOLLOW STRUCTURES AND TWO-STEP MOLDING OF CORRUGATED HOLLOW STRUCTURES

A method of manufacturing an energy-absorbing structure according to various aspects of the present disclosure via a two-step molding process includes molding first and second portion precursors including thermoset polymers (e.g., thermoset polymer composites) to a first degree of cure (DOC) less than one so that the portion precursors are in a gelled glass state. The method further includes joining the first and second portion precursors by applying heat and pressure in a joining region such that the thermoset polymers have a second DOC greater than the first DOC and are cross-linked in the joining region. The energy-absorbing component therefore has a unitary structure. The method may further include coupling the energy-absorbing structure to a housing. In certain aspects, energy-absorbing structures may have tailored stiffness and/or tailored crush initiation. 1. A method of manufacturing an energy-absorbing structure comprising:molding a first portion precursor comprising a first thermoset resin by partially curing the first thermoset resin such that the first thermoset resin has a first degree of cure less than one and the first thermoset resin is in a gelled glass state, the first portion precursor including a pair of first flange portions and first wall portion disposed between the pair of first flange portions;molding a second portion precursor comprising a second thermoset resin by partially curing the second thermoset resin such that the second thermoset resin has a second degree of cure less than one and the second thermoset resin is in the gelled glass state; the second portion precursor comprising a pair of second flange portions and a second wall portion disposed between pair of second flange portions; and arranging the first portion precursor and the second portion precursor in a mold such that the pair of first flanges portions is in contact with the pair of second flange portions in a respective pair of joining regions, and', 'joining the first ...

METHOD AND SYSTEM FOR AUTOMATED FABRICATION OF COMPOSITE PREFORMS

A method and system for automated fabrication of composite preforms. In one implementation, a fabrication apparatus includes a stitching assembly, needle apparatus, motion stage, preform cartridge, CAD/CAM Software, and embedded machine software. The stitching assembly includes an upper portion that supports a stitching mechanism. The stitching mechanism includes at least one needle assembly. The needle assembly may be configured with at least one needle apparatus configured to pass filaments through composite preforms. In one implementation, the stitching assembly is used to stitch layers of the composite preforms using a variety of stitching patterns. The fabrication apparatus may be configured to fold fabric layers of the composite preform before or after stitching two or more layers of the composite preform. 1. A method for stitching composite preforms , the method comprising:positioning a first carbon fiber fabric layer relative a second carbon fiber fabric layer;determining a first Z-height stitching position relative to a Z-base position for stitching at least a portion of the first carbon fiber fabric layer to the second carbon fiber fabric layer;positioning a needle assembly including an inner shaft, outer cover, and open needle eye portion relative to a first insertion point of the first carbon fiber fabric layer relative a second carbon fiber fabric layer forming a first fabric laminate at a first thickness;attaching a filament to the open needle eye portion;inserting the needle assembly including the filament through both the first and second carbon fabric layer at the first insertion location to form a first portion of a continuous stitch at the first Z-height position;disconnecting the filament from the needle assembly;removing the needle assembly from the first and second carbon fiber fabric layers;moving the position of the needle assemble and the first and the second carbon fiber layer relative to one another to position the needle assembly to a ...

Method and System for Creating Three-Dimensional Preforms for Use in Composite Parts

An ultrasonic manipulator for processing three-dimensional composite preforms is provided, including at least one end effector, the end effector having an ultrasonic cutting device, an ultrasonic machining device, an ultrasonic inspecting device, and an ultrasonic bonding device. A method for creating three-dimensional preforms for use in molding composite parts is also provided, and includes the steps of grasping a preform/towpreg, inspecting the composite object using ultrasound, cutting a preform from the composite object using ultrasound, and at least some of the steps of shaping the preform using ultrasound, machining the preform using ultrasound, assembling a plurality of preforms, bonding the assembled preforms together to create a preform charge, and placing the preform charge in an injection mold. 1. An ultrasonic manipulator for processing three-dimensional composite preforms , comprising at least one end effector , the end effector comprising:(a) an ultrasonic cutting device;(b) an ultrasonic machining device;(c) an ultrasonic inspecting device; and(d) an ultrasonic bonding device.2. The ultrasonic manipulator of claim 1 , wherein the end effector comprises a pair of paddles.3. The ultrasonic manipulator of claim 1 , wherein the ultrasonic manipulator further comprises a pick-and-place system.4. The ultrasonic manipulator of claim 2 , wherein end paddles include ultrasonic at least one sonotrode claim 2 , transmitter and receiver.5. The ultrasonic manipulator of claim 1 , wherein the end effector includes milling tool head.6. A method for creating three-dimensional preforms for use in molding composite parts claim 1 , comprising the steps of:(a) grasping a preform/towpreg;(b) inspecting the composite object using ultrasound; and(c) cutting a preform from the composite object using ultrasound;wherein all steps are performed by a single end effector.7. The method for creating three-dimensional preforms of claim 6 , including the step of shaping the preform ...

Molded Catheter Tip

A catheter has extruded length of tubing and an injection molded tip that facilitates insertion of the catheter into the body. The catheter is fabricated by the steps of providing the tubing, for example, by extruding the tubing from a thermoplastic resin cutting the tubing to the desired length, inserting a plug into the tubing, inserting one end of the tubing into an injection mold cavity, creating and forming a tip in an injection molding step, and demolding the tubing with the formed tip. 1. A method of making a catheter , comprising the steps of:a) providing tubing having an axial lumen defined therein, the lumen having an inside diameter;b) cutting the tubing to the desired catheter length;c) forming a plug, at least a portion of the plug having an outside diameter at least as large as the inside diameter of the lumen;d) pre-heating the plug;e) inserting the pre-heated plug into the lumen at an end of the tubing;f) inserting said end of the tubing into an injection mold cavity;g) injecting molten thermoplastic polymer material under pressure into the mold cavity;h) cooling the mold cavity so the molten thermoplastic polymer material solidifies and forms a tip bonded to the plug and to the tubing end; andi) removing the tubing with the formed tip from the mold.2. The method of further comprising the step of forming a depression in the apex of the tip.3. The method of wherein the step of inserting the pre-heated plug into the lumen is characterized by locating the plug so that its outer end terminates flush with the end of the tubing.4. The method of wherein the step of inserting the pre-heated plug into the lumen is characterized by recessing the plug from the end of the tubing.5. A method of making a catheter claim 1 , comprising the steps of:a) providing tubing having an axial lumen defined therein, the lumen having an inside diameter and the tubing having an inner wall and an outer wall;b) cutting the tubing to the desired catheter length;c) forming a plug, ...

Foam Furniture Molded Around A Hollow Shell Of Hard Plastic

A foam seating article includes a layer of molded foam surrounding a hollow shell made of hard plastic. A fabric covering encloses the shell and molded foam. The foam seating article can take the form of a chair, stool, sofa, chaise lounge, bench or Ottoman. The hollow shell can be formed using blow molding, injection molding or by capping both ends of a tube with disks. Air pressure inside the airtight hollow shell prevents the shell from collapsing inwards under the weight of an occupant. Alternatively, the hollow shell of the seating article can be accessed through a removable lid. The seating article includes no wood or metal. The layer of molded foam includes sections of different foam types, such as high density (HD) foam, memory foam and latex foam. Molding foam around a hard plastic shell is simpler and less costly than making conventional metal or wood framed furniture. 1. A seating article comprising:a hollow shell made of hard plastic;a layer of molded foam surrounding the hollow shell; anda covering enclosing the molded foam and the shell.2. The seating article of claim 1 , wherein the molded foam is taken from the group consisting of: high density (HD) foam claim 1 , memory foam and latex.3. The seating article of claim 1 , wherein the covering is taken from the group consisting of: a woven fabric claim 1 , a nonwoven fabric claim 1 , leather claim 1 , and a conformal plastic layer.4. The seating article of claim 1 , wherein the hard plastic is taken from the group consisting of:polypropylene, polyethylene, polyvinyl chloride (PVC), polyvinyl acetate (PVA) and a thermoplastic elastomer (TPE).5. The seating article of claim 1 , wherein the seating article includes no wood or metal.6. The seating article of claim 1 , wherein the layer of molded foam includes sections of different foam types.7. The seating article of claim 1 , wherein the hollow shell has an uneven outer surface claim 1 , and wherein the molded foam is molded into the uneven outer surface. ...

METHODS, APPARATUSES, AND SYSTEMS FOR EDGE SEALING LAMINATE WAFERS CONTAINING A SOFT DEFORMABLE INNER FILM

The present disclosure includes systems, apparatuses, and methods for an optical system. In some aspects, the systems and devices may produce a wafer for use in the manufacture of an optical article. The wafer includes a laminate having a first layer that includes a first matrix material having a lower surface and an upper surface opposite the lower surface and a second layer that includes a second matrix material, the second layer is coupled to the first layer and covers at least a portion of the lower surface or the upper surface. The first layer includes a first thickness at a central portion that is greater than a second thickness at an edge portion. 1. A method of forming a wafer for use in an optical article , the method comprising:liquefying at least a portion of a thermoplastic layer of a laminate;displacing the liquefied portion of the thermoplastic layer; andcutting a wafer from the laminate.2. The method of claim 1 , where: 'heating the at least the portion of a thermoplastic layer of the laminate; or', 'liquefying the at least the portion of the thermoplastic layer of the laminate comprises'}cutting the wafer comprises cutting the laminate to define an outer edge of the wafer.3. The method of claim 1 , where cutting the wafer occurs subsequent to displacing the liquefied portion of the thermoplastic layer.4. The method of claim 1 , where:displacing the liquefied portion of the thermoplastic layer comprises compressing the portion of the thermoplastic layer of the laminate; andoptionally, compressing the portion of the thermoplastic layer of the laminate displaces the liquefied portion in a direction outward from a center of the wafer.5. The method of claim 1 , further comprising sealing a sidewall of the wafer.6. The method of claim 1 , where cutting the wafer from the laminate occurs prior to liquefying the at least the portion of a thermoplastic layer of the laminate.7. The method of claim 1 , further comprising:thermoforming the wafer; andplacing the ...

CARBON FIBER PREFORMS

In some examples, a method including depositing a resin and a plurality of carbon fibers via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers, wherein each individual layer of the plurality of individual carbon fiber layers includes the resin and carbon fibers, and wherein the carbon fiber preform exhibits at least one of a non-uniform composition of the resin within the preform, different types of the carbon fibers within the preform, or non-uniform fiber orientation within the preform. 1. A method comprising depositing a resin and a plurality of carbon fibers via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers , wherein each individual layer of the plurality of individual carbon fiber layers includes the resin and carbon fibers , and wherein the carbon fiber preform exhibits at least one of a non-uniform composition of the resin within the preform , different types of the carbon fibers within the preform , or non-uniform fiber orientation within the preform.2. The method of claim 1 , wherein the at least one of the non-uniform composition of the resin within the preform claim 1 , the different types of the carbon fibers within the preform claim 1 , or the non-uniform fiber orientation within the preform is configured to at least one of modify a friction property claim 1 , increase a density claim 1 , or increase a strength of a densified carbon-carbon composite material formed from the carbon fiber preform.3. The method of claim 1 , wherein the plurality of individual carbon fiber layers includes a first carbon fiber layer and a second carbon fiber layer claim 1 , wherein the resin in the first carbon fiber layer comprises a first resin composition and the resin in the second carbon fiber layer comprises a second resin composition that is different than the first resin composition such ...

SYSTEM FOR THE FURTHER TREATMENT OF PREFORMS PRODUCED BY MEANS OF INJECTION MOLDING

The present invention concerns a system for the further treatment of hollow body preforms produced by injection molding, comprising 1. A system for the further treatment of hollow body preforms produced by injection molding , comprisingi) a receiving plate having at least one receiving cavity for receiving a preform, a) a post-treatment plate,', 'b) at least one impression pin provided for changing the internal contour of the profile by either coming into contact with the inside of the preform during the post-treatment or closing the preform and acting on the inside space with a fluid under pressure, whereby the preform is inflated, and', 'c) at least one post-treatment element which is provided for passing into the interior of a preform received in the receiving cavity or coming into contact with the preform, and, 'ii) a post-treatment system which has'}iii) a movement device with which the receiving plate can be reciprocated relative to the post-treatment plate between a first position in which the impression pin is positioned within the receiving cavity, a second position in which the post-treatment element is positioned within the receiving cavity or comes into contact with a preform received therein, and a third position in which neither the impression pin nor the post-treatment element is positioned within the receiving cavity or comes into contact with a preform received therein.2. A system as set forth in characterised in that the posttreatment element is an ejection element having a holding device for selectively holding a preform.3. A system as set forth in characterised in that the posttreatment element is a post-treatment pin having a fluid passage through which fluid can be introduced into or sucked out of the interior of a preform received in the receiving cavity.4. A system as set forth in characterised in that the impression pin has a sealing element which can come into contact with the opening of the hollow body preform and seal same off and a fluid ...

AN APPARATUS AND A METHOD FOR FORMING PRE-SHAPED INSULATING SHEETS

An apparatus for forming pre-shaped insulating sheets comprises first bending station and a second bending station. The first bending station is used for bending a flat sheet of insulating material into a Z-shaped sheet (). The second bending station is used for bending the Z-shaped sheet into an S-shape. The first and second bending stations comprise pairs of first () and second bending operators for creating bending movements. 1. An apparatus for forming pre-shaped insulating sheets , the apparatus comprising:a first bending station for bending a flat sheet of insulating material into a Z-shaped sheet;a second bending station for further bending the Z-shaped sheet into an S-shape; a first holding surface for contacting a center section of the flat sheet; and', {'b': 4', '4, 'i': b,', 'c, 'at least one pair of first bending operators for bending tail end sections () of the sheet neighboring the center section, the first bending operators being movable transversely with respect to the first holding surface;'}], 'wherein the first bending station comprises at least one first holding mechanism for holding the flat sheet, the first holding mechanism comprisingwherein the second bending station comprises at least one second holding mechanism for holding the Z-shaped sheet, the second holding mechanism comprising:a second holding surface for contacting a tail section of the Z-shaped sheet; andat least one pair of second bending operators for bending the tail end sections of the Z-shaped sheet into one of an open S-shape or partially closed S-shape or fully closed S-shape, the second bending operators being at least movable transversely with respect to the second holding surface.2. The apparatus according to claim 1 , wherein the second bending station comprises at least one pair of third bending operators for bending the tail end sections of the open S-shaped sheet into a partially closed S-shape claim 1 , the third bending operators being movable in a direction parallel ...

METHOD FOR FORMING FIBER COMPOSITE PREFORMS

A method for forming fiber composite preforms, the preform () include a web (), a flange () and a bent part (), and the method includes: laying-up a laminate () onto a tooling (), the laminate () comprising lateral and transverse edges () and the tooling () comprising a male part () comprising a surface () and a lateral wall (), the web () being configured to be located over the surface () of the male part () and the flange () being configured to be located over the lateral wall () of the male part (); forming the preform () over the male part (); clamping the lateral edges () of the laminate () to the tooling () such that the web () and the flange () of the laid-up laminate () are kept under tensional loads, and bending a longitudinal portion of the male part (). 1. A method for forming a fiber composite preform , wherein the fiber composite preform includes a web and at least one a flange and a bend in the preform along a longitudinal axis of the preform , the method comprises:laying a laminate on tooling, wherein the laminate includes longitudinal edges and transverse edges, and the tooling includes a male part comprising a first surface and at least one lateral wall, wherein a portion of the laminate laid-up on the first surface forms the web of the preform and a portion of the laminate laid-up on the at least one lateral wall forms the at least one flange,securing the transversal edges of the laminate to the first surface and the at least one lateral wall such that the laminate is held under tension over the tooling; andwhile the laminate is held under tension, bending the laminate and the male part with respect to a longitudinal direction of the male part to form the bend in the preform.2. The method according to claim 1 , wherein the tooling further comprises a base part comprising a base surface claim 1 , the male part being movable with respect to the base part in a direction perpendicular to the base surface claim 1 , and the step of laying-up a laminate ...

Three dimensional preform created by preconsolidation of thermal plastic stitched sheet

A two dimensional unitary preform sheet including a substrate and a fiber bundle arranged on the substrate and attached to the substrate by a plurality of stitches of a thread, which may be a thermoplastic thread. The two dimensional unitary preform sheet is configurable into a three dimensional preform. According to embodiments, the fiber bundle includes carbon fibers, glass fibers, aramid fibers, or a combination thereof. According to embodiments, the two dimensional unitary preform sheet is cut in a pattern that is foldable into the three dimensional preform. A method for making a three dimensional preform is also provided, which includes forming a two dimensional unitary preform sheet and placing the two dimensional unitary preform in a press to bend the two dimensional unitary preform into the shape of the three dimensional preform.

METHOD OF PRODUCING A DECORATED ELEMENT FOR A TIMEPIECE OR PIECE OF JEWELLERY, AND ELEMENT MADE BY THE METHOD

The method makes it possible to produce a decorated element for a timepiece or piece of jewelry. This decorated element may be, for example, a watch dial. The method includes the steps of taking a base substrate, and micromachining on said base substrate a mould or decorative partitions in a programmed pattern, and filling the mould or the decorative partitions with at least one filler material to obtain the decorated element. The filler material may be enamel. 1. A method for producing a decorated element for a timepiece or piece of jewelry , the method includes the steps of:taking a base substrate, and micromachining on said base substrate a mould or decorative partitions in a programmed pattern, andfilling the mould or decorative partitions with at least one filler material to obtain the decorated element,wherein the mould or the decorative partitions are obtained by the selective melting or selective sintering of a powder on the base substrate in a selective melting or selective sintering machine using a laser beam or an electron beam or in an additive fabrication machine of a metal, ceramic or ceramo-metallic material, such as cermet, along a stored line of the pattern to be created.2. The method for producing a decorated element according to claim 1 , wherein the mould or the decorative partitions are filled with a vitreous substance for an enameling operation including firing the vitreous substance in a furnace to obtain the decorated element.3. The method for producing a decorated element according to claim 1 , wherein once the mould or the decorative partitions are filled with the solidified filler material adhering to walls of said mould or of said partitions claim 1 , a machining or selective dissolution operation is performed to remove the base substrate claim 1 , which is metal or ceramic or ceramo-metallic claim 1 , such as cermet.4. The method for producing a decorated element according to claim 1 , wherein the base substrate is provided with at least ...

INJECTION MOLDED PREFORM AND MANUFACTURE THEREOF

An injection moulded thermoplastic preform for blow moulding to form a container, the preform comprising a lower closed base portion, a hollow body portion, a hollow transition portion between the lower closed base portion and the hollow body portion, and an upper open end portion adjacent to an upper part of the hollow body portion, wherein the closed base portion comprises a central portion which extends over at least 50% of an internal radius of a lower end of the hollow body portion and is either substantially flat or has a shallow concave or convex internal curvature, and the transition portion comprises an upwardly and radially outwardly tapering portion extending away from the central portion to connect to the hollow body portion, the tapering portion being inclined at an angle of from 1 to 20 degrees to a longitudinal axis of the preform and the tapering portion increasing in thickness from the central portion to the hollow body portion. Also disclosed is a method of injection moulding the thermoplastic preform. 1. An injection moulded thermoplastic preform for blow moulding to form a container , the preform comprising a lower closed base portion , a hollow body portion having an annular wall , a hollow transition portion between the lower closed base portion and the hollow body portion , and an upper open end portion adjacent to an upper part of the hollow body portion , wherein the closed base portion comprises a central portion which extends over at least 50% of an internal radius of a lower end of the hollow body portion and is either substantially flat or has a shallow concave or convex internal curvature , and the transition portion comprises an upwardly and radially outwardly tapering portion extending away from the central portion to connect to the hollow body portion , the tapering portion being frustoconical and defined between outer and inner frustoconical walls , the tapering portion increasing in thickness from the central portion to the hollow ...

PREFORMS AND METHOD FOR PRODUCING PREFORMS

The invention relates to a preform for producing a plastic container in a 2-stage stretch blow molding method, said preform having a preform body that extends along a central axis and that comprises: a first end a second end that lies opposite the first end, wherein the first end is closed and a neck part with a pouring opening adjoins the second end; and an inner wall that delimits an interior of the preform. Along a length of at least 30 mm of the interior, every point of the inner wall is at a distance of less than 3.5 mm from the central axis. Also disclosed are a suitable method and a device for producing such a preform. 1. A preform for producing a plastic container in a two-step injection stretch blow molding process , comprising:a preform body extending along a central axis thereof and having a first end and a second end opposite the first end, the first end being closed by a preform bottom;a neck part haying a pour opening connected to the second end of the preform body; andan inside wall bordering an interior space of the preform body, each point on the inside wall in the interior space being less than 3.5 mm away from the central axis for a length of at least 30 mm.2. The preform of claim 1 , wherein each point on the inside wall in the interior space is less than 3 mm or less than 2.5 mm away from the central axis for a length of at least 30 mm.3. The preform according to of claim 1 , wherein the preform body is comprised of polyester claim 1 , the polyester being PEF or PET.4. The preform of claim 1 , wherein an (a)/(b) ratio is greater than 60 and less than 110 claim 1 , wherein (a) is an average wall thickness of the preform in an area of the preform body and (b) is a length corresponds to the wall of the preform from the pour opening to a midpoint of a preform bottom claim 1 , wherein the length of the wall is measured along a line running in the area of the preform body at the center of the wall and running at a constant distance from the inside ...

METHOD AND APPARATUS FOR PRODUCING FIBER-REINFORCED RESIN MOLDING MATERIAL

Provided are a method and an apparatus for manufacturing a fiber-reinforced resin molding material by which, when the fiber-reinforced resin molding material is manufactured, separated fiber bundles can be supplied to a cutting machine in stable condition while avoiding the influence of meandering of the fiber bundles or slanting or meandering of filaments occurring in the fiber bundles. 1. A method for producing a sheet-type fiber-reinforced resin molding material comprising impregnating a resin among filaments of cut fiber bundles , {'br': None, 'i': 'a/L', '1≤\u2003\u2003(1)'}, 'wherein the cut fiber bundles are obtained by intermittently separating a continuous fiber bundle in a longitudinal direction and by cutting the fiber bundle at intervals in the longitudinal direction to satisfy the condition specified in formula (1) belowin formula (1), “a” is a length of a separated portion of the continuous fiber bundle, and “L” is the interval for cutting the fiber bundle in a longitudinal direction.2. The method for producing a fiber-reinforced resin molding material according to claim 1 , wherein the separation and cutting are conducted to satisfy the condition specified in formula (2) below:{'br': None, 'i': 'a/L≤', '10\u2003\u2003(2).'}3. A method for producing a sheet-type fiber-reinforced resin molding material comprising impregnating a resin among filaments of cut fiber bundles claim 1 , {'br': None, 'i': a', 'a+b, '0.9≤/()<1\u2003\u2003(3)'}, 'wherein the cut fiber bundles are obtained by intermittently separating a continuous fiber bundle in a longitudinal direction and by cutting the fiber bundle at intervals in the longitudinal direction to satisfy the condition specified in formula (3) belowin formula (3), “a” is a length of a separated portion of the continuous fiber bundle, and “b” is a length of an unseparated portion that is present between portions intermittently separated in the continuous fiber bundle.4. The method for producing a fiber-reinforced ...

MULTILAYER STRUCTURAL COMPONENT, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF

The invention relates to a multilayer structural component () comprising a first and a second fibre-composite layer () and a foam layer (), arranged in between, made of foamed plastics material, wherein the first and the second fibre-composite layer () each have at least one fibrous layer () made of a fibre material, said fibrous layer being embedded in a thermoplastic-based matrix (). The structural component has an anchoring structure () for attaching to a force introduction element. The invention furthermore relates to a method for producing a structural component (), in which a first and a second fibre-composite sheet () are provided, wherein the first and the second fibre-composite sheet () each have at least one fibrous layer () made of a fibre material, said fibrous layer being embedded in a thermoplastic-based matrix (), in which the first fibre-composite sheet () is thermoformed to form a first fibre-composite semifinished product () and the second fibre-composite sheet () is thermoformed to form a second fibre-composite semifinished product (), in which the first and the second fibre-composite semifinished product () are arranged in a foaming mould () such that a cavity (); is formed between the first and the second fibre-composite semifinished product (), and in which the cavity () is foamed by injection of a foaming plastics material. Furthermore, the anchoring structure () is integrated into the structural component. 118.-. (canceled)20. The structural component as claimed in claim 19 , wherein the matrix of the first and/or of the second fiber-composite layer is based on a thermoplastic.21. The structural component as claimed in claim 19 , wherein the fiber ply of the first and/or of the second fiber-composite layer takes the form of unidirectional fiber ply claim 19 , of woven-fabric ply claim 19 , of random-fiber ply claim 19 , or of combinations thereof.22. The structural component as claimed in claim 19 , wherein the fiber material of the first and ...

PREFORM, CONTAINER AND METHOD FOR FORMING A CONTAINER

Preform () or preform assembly for blow moulding a container (), wherein the preform of preform assembly has a neck portion (), a lid element () being provided at the neck portion, an opening extending into the neck portion, providing access to an internal space of the preform or preform assembly. Method for blow moulding a container. Container blown from a preform or preform assembly. 1. Preform or preform assembly for blow moulding a container , wherein the preform or preform assembly has a neck portion defining a neck opening , a lid element being provided extending over the neck portion , an opening extending into the neck portion , providing access to an internal space of the preform or preform assembly , wherein the lid element is provided with the opening , which opening has a cross section which is smaller than the inner cross section of the neck opening.2. Preform or preform assembly according to claim 1 , wherein the lid element is provided with the opening.3. Preform or preform assembly according to claim 1 , wherein the lid element is connected to the neck portion permanently.4. Preform or preform assembly according to claim 3 , wherein the lid element is connected to the neck portion by welding.5. Preform or preform assembly according to claim 3 , wherein the lid element is connected to the neck portion by ultrasonic welding claim 3 , laser welding claim 3 , friction welding claim 3 , spin welding or pressure welding.6. Preform or preform assembly according to claim 3 , wherein the lid element is connected to the neck portion by gluing.7. Preform or preform assembly according to claim 1 , wherein the lid element is provided on the neck portion and the opening is dimensioned for introducing a blow moulding tool into the preform or preform assembly.8. Preform or preform assembly according to claim 1 , wherein the lid element is attached to the preform or preform assembly using a press fit.9. Method for blow moulding a container claim 1 , comprising the ...

PREFORM FOR PLASTIC CONTAINER WITH THIN BOTTOM

The invention relates to a new PET preform design that enables a more precise distribution of material in the bottle bottom and avoids the waste of material around the injection point. The thickness BWTof the wall at the center of the gate or tip () (injection point) is reduced to a minimum in order to avoid the waste of material around the injection point when the preform is blown. This is particular important for carbonated soft drink application since the reduced amount of amorphous material at the center of the gate () helps to reduce the risk of stress cracking on the bottle base. Furthermore a step () having thickness WTin the body wall thickness, in the region of the periphery of the base with WT>WT, allows enough material to be available for the proper blowing of the bottle bottom making the bottle more stable. 2. Preform according to claim 1 , wherein claim 1 , at said end of bottom portion claim 1 , in the region where the preform portion having side wall thickness WT ends claim 1 , there is provided a wall step having a thickness WThigher than said side wall thickness WT.3. Preform according to claim 2 , where the thickness WTof the wall step is between 4% and 20% higher than said side wall thickness WT.4. Preform according to claim 2 , wherein the wall step is placed between the body portion and the bottom portion.5. Preform according to claim 1 , wherein the preform is for a carbonated soft drink bottle and the ratio BWTmin/WT is between 0.20 and 0.30.6. Preform according to claim 1 , wherein the preform is for non-carbonated soft drink bottle and the ratio BWTmin/WT is between 0.50 and 0.55.7. Preform according to adapted to make a bottle having a capacity of less than 0.75 L. The present invention relates to a preform in plastic material, such as PET or other suitable material, used for example for making small-size containers for beverages or other liquids by means of injection compression blow molding.For economic reasons, the line followed by the ...

METHOD AND DEVICE FOR CONSOLIDATING A TEXTILE PREFORM AND OVERMOULDING

A device to thermoform a composite component and injection over-moulding a shape on one face of the composite component in a mould. The mould includes a paired shaping die and punch between them defining a closed cavity. The shaping die is mounted on a transfer device. The transfer device includes a loading/unloading station to load/unload a blank onto/from the shaping die, and an injection and mould-closure station to close the mould and to inject between the punch and the shaping die. The shaping die includes a network of inductors to heat its moulding surface and a cooling network to cool the moulding surface by a circulation of a fluid. The loading/unloading station includes a placement device to place a radiating element facing the moulding surface of the shaping die. 19-. (canceled)10. A device to thermoform a composite component and injection over-moulding a shape on one face of the composite component in a mould , the mould comprising a paired shaping die and punch defining a moulding cavity therebetween , the shaping die being mounted on a transfer device comprising:a loading/unloading station to load/unload a blank onto/from the shaping die;an injection and mould-closure station configured to close the mould and to inject between the punch and the shaping die;wherein the shaping die comprises a moulding surface, a network of inductors to heat the moulding surface and a cooling network to cool the moulding surface by a circulation of a fluid; andwherein the loading/unloading station comprises a placement device to place a radiating element facing the moulding surface of the shaping die.11. The device according to claim 10 , wherein the radiating element is an induction heated screen.12. The device according to claim 11 , wherein a single high-frequency generator supplies a high frequency current to both the network of inductors of the shaping die and to an induction heating circuit that heats the radiating element.13. The device according to claim 12 , ...

CONTAINER, PREFORM ASSEMBLY AND METHOD AND APPARATUS FOR FORMING CONTAINERS

Container comprising an inner container and an outer container with facing surfaces, wherein at least part of at least one of the facing surfaces has a surface roughness higher than about 0.1 Ra and/or wherein the difference in roughness of said facing surfaces is at least over a part more than about 0.1 Ra. 1. Container comprising an inner container and an outer container with facing surfaces , wherein at least part of at least one of the facing surfaces has a surface roughness higher than about 0.1 Ra and/or wherein the difference in roughness of said facing surfaces is at least over a part more than about 0.1 Ra.2. Container according to claim 1 , wherein said at least one surface is the outer surface of the inner container.3. Container according to claim 1 , wherein the inner and outer container have a neck region claim 1 , wherein an outer surface part of the neck region of the inner container and/or an inner surface part of the neck region of the outer container has a surface roughness of at least 0.1 Ra.4. Container according to claim 1 , wherein said surface roughness is at least 0.25 Ra claim 1 , preferably between 0.25 and 2 claim 1 , more preferably between 0.25 and 1.5. Container according to claim 4 , wherein said roughness is at least 0.30 Ra.6. Container according to claim 1 , wherein the inner container and/or outer container having said surface roughness on at least part of a surface comprises particles enclosed in the wall claim 1 , between the plastic forming chains of the plastic wall of the container.7. Container according to claim 6 , wherein the particles are made of or at least contain material different from the plastic of the wall of said container claim 6 , especially metal.8. Container according to claim 6 , wherein the particles are or contain flakes claim 6 , especially metal flakes claim 6 , more particularly aluminum flakes.9. Container according to claim 6 , wherein the particles form between 0.5 and 5% claim 6 , in particular ...

BLOW-MOLDED CONTAINER, FUEL CONTAINER, BLOW-MOLDED BOTTLE CONTAINER, AND PRODUCTION METHOD OF BLOW-MOLDED CONTAINER

Provided is a blow-molded container exhibiting inhibited coloring, odor, and generation of defects such as gelation and streaks which are caused on melt molding, and having a superior appearance. Also provided is a blow-molded container that has a favorable self-purge feature in production and satisfactory qualities such as strength, and can be produced at low cost. The blow-molded container includes a first layer containing an ethylene-vinyl alcohol copolymer (I), wherein the first layer contains a saturated carbonyl compound (II) having 3 to 8 carbon atoms, the saturated carbonyl compound (II) is a saturated aldehyde (II-1), a saturated ketone (II-2) or a combination thereof, and the content of the saturated carbonyl compound (II) in the first layer is 0.01 ppm or greater and 100 ppm or less. 2. The blow-molded container according to claim 1 , wherein the saturated carbonyl compound (II) is propanal claim 1 , butanal claim 1 , hexanal or a combination thereof.3. The blow-molded container according to claim 1 , wherein the saturated carbonyl compound (II) is acetone claim 1 , methyl ethyl ketone claim 1 , 2-hexanone or a combination thereof.4. The blow-molded container according to claim 1 , wherein:the first layer comprises a conjugated polyene compound; anda content of the conjugated polyene compound is 0.01 ppm or greater and 1,000 ppm or less.5. The blow-molded container according to claim 4 , wherein the conjugated polyene compound is sorbic acid claim 4 , a sorbic acid salt or a combination thereof.6. The blow-molded container according to claim 1 , comprising:{'sup': 3', '1/2, 'a pair of second layers that are formed of a thermoplastic resin having a solubility parameter calculated using a Fedors equation of 11 (cal/cm)or less and are arranged on an inner face side and an outer face side of the first layer, respectively; and'}a pair of third layers that are formed of a carboxylic acid-modified polyolefin and are each arranged between the first layer and each ...

Preform Design For Lightweight Container

A preform configured to form a container by stretch blow molding. A finish portion is at a first end of the preform, and is a container finish. A tip portion is at a second end of the preform opposite to the first end, and is configured to form a container base and a container heel. The shoulder portion is adjacent to the finish portion and is between the finish portion and the tip portion. The shoulder portion is configured to form a container shoulder. The body portion is between the shoulder portion and the tip portion, and is configured to form a container body. The outer surface includes a first flat portion and a second flat portion at the tip portion. The first flat portion extends at a first angle and the second flat portion extends at a second angle that is different than the first angle. 1. A preform configured to form a container by stretch blow molding , the preform comprising:a finish portion at a first end of the preform, the finish portion is a container finish of the container;a tip portion at a second end of the preform opposite to the first end, the tip portion configured to form a container base and a container heel of the container;a shoulder portion adjacent to the finish portion and between the finish portion and the tip portion, the shoulder portion configured to form a container shoulder of the container;a body portion between the shoulder portion and the tip portion, the body portion configured to form a container body of the container; andan outer surface including a first flat portion and a second flat portion at the tip portion, the first flat portion extends at a first angle relative to a longitudinal axis of the preform, and the second flat portion extends at a second angle relative to the longitudinal axis of the preform, the second angle is different than the first angle.2. The preform of claim 1 , wherein the outer surface includes a curved portion between the first flat portion and the second flat portion.3. The preform of claim 1 , ...

PROCESS AND APPARATUS FOR PRODUCING FIBER-REINFORCED THERMOPLASTIC RESIN TAPE

Provided are a process and an apparatus for producing a fiber-reinforced thermoplastic resin tape, the process and the apparatus being capable of preventing fiber cut from occurring at the start of production of the fiber-reinforced thermoplastic resin tape. The provided process includes a resin impregnation step of opening a fiber bundle and impregnating the fiber bundle with molten thermoplastic resin and a through-nozzle passing step of passing the fiber bundle having undergone the resin impregnation step through a slit formed in a nozzle. The through-nozzle passing step includes setting, at the start of production, a gap dimension of the slit to a dimension larger than a normal dimension and changing the gap dimension of the slit to the normal dimension when a predetermined condition is satisfied, after the production start. 1. A process for producing a fiber-reinforced thermoplastic resin tape , the process comprising:a resin impregnation step of opening a fiber bundle and impregnating the opened fiber bundle with molten thermoplastic resin; anda through-nozzle passing step of passing the fiber bundle having undergone the resin impregnation step through a slit formed in a nozzle to form the resin bundle into a tape shape, whereinthe through-nozzle passing step includes passing the fiber bundle, at the start of production, through the slit in a state where the slit has a gap dimension larger than a normal dimension corresponding to a target thickness dimension of the fiber-reinforced thermoplastic resin tape and changing the gap dimension of the slit, at a point in time when a predetermined condition is satisfied after the start of production, into the normal dimension and then passing the fiber bundle through the slit.2. The process for producing a fiber-reinforced thermoplastic resin tape according to claim 1 , wherein the predetermined condition is that predetermined time elapses after the production start.3. The process for producing a fiber-reinforced ...

SYSTEM AND METHOD FOR PRODUCING PREFORMS

A system for producing a composite preform, especially for continuous preforming of reinforcing material for a composite component, is provided. The system includes: a feeding device for feeding one or more layers of preform material from a material supply along a process path; a heating device arranged in the process path for heating the one or more layers of the preform material fed along the process path to soften or activate a resin or binder in the one or more layers; and a forming device arranged in the process path downstream of the heating device and configured to shape or mould a cross-sectional profile of the one or more layers of preform material as the one or more layers are fed along the process path. A method for producing a composite preform is also provided. 1. A system for producing a composite preform , comprising:a feeding device for feeding one or more layers of preform material from a material supply along a process path;a heating device arranged in the process path for heating the one or more layers of the preform material fed along the process path to soften or activate a resin or binder in the one or more layers; anda forming device arranged in the process path downstream of the heating device and configured to shape or mould a cross-sectional profile of the one or more layers of preform material as the one or more layers of preform material are fed along the process path.2. The system according to claim 1 , wherein the feeding device is configured to feed the one or more layers of preform material as elongate claim 1 , and continuous claim 1 , strips or sheets in a longitudinal direction along the process path claim 1 , wherein the forming device is configured to shape or mould the cross-sectional profile of the one or more layers of preform material transverse to the longitudinal direction.3. The system according to claim 2 , wherein the forming device includes a plurality of forming stations arranged in series along the process path to ...

Wind Turbine Blades

A method of making a longitudinal reinforcing structure for a wind turbine blade. The method comprises a) providing an elongate master strip () of reinforcing material having substantially flat first and second surfaces, the distance between the first and second surfaces defining the thickness of the master strip; and b) dividing the master strip transversely to form a first strip and a shorter master strip, the respective strips being arranged end to end such that a trailing end of the first strip is located adjacent a new leading end of the master strip. The step of dividing the master strip comprises removing material from a dividing region extending through the entire thickness of the master strip, wherein the dividing region is shaped such that a chamfer () at the trailing end () of the first strip is created and a chamfer () at the new leading end () of the master strip is created when the master strip is divided. 1. A method of making a longitudinal reinforcing structure for a wind turbine blade , the method comprising:a. providing an elongate master strip of reinforcing material having substantially flat first and second surfaces, the distance between the first and second surfaces defining the thickness of the master strip; andb. dividing the master strip transversely to form a first strip and a shorter master strip, the respective strips being arranged end to end such that a trailing end of the first strip is located adjacent a new leading end of the master strip;wherein the step of dividing the master strip comprises removing material from a dividing region extending through the entire thickness of the master strip, wherein the dividing region is shaped such that a chamfer at the trailing end of the first strip is created and/or a chamfer at the new leading end of the master strip is created when the master strip is divided.2. The method of claim 1 , wherein the dividing region tapers through the thickness of the master strip moving in a direction from the ...

UNIT AND METHOD FOR THE PRODUCTION OF THERMOPLASTIC COMPOSITE PREFORMS

A production of thermoplastic composite preforms intended to be thermoformed. The unit including: a movable support and a plurality of storage areas for storing a plurality of structural elements made from thermoplastic composite material; and transfer and connection devices for transferring the structural elements to the movable support and connecting the structural elements to one another. The movable support is driven sequentially in translation in a direction of travel, while the storage areas are arranged laterally in relation to the movable support. The transfer and connection devices transfer the structural elements to the movable support along a transfer direction substantially perpendicular to the direction of travel. 1. An installation for production of thermoplastic composite preforms intended to be thermoformed , said installation comprising on the one hand a mobile support and a plurality of storage areas situated in the vicinity of said mobile support to be able to store a respective plurality of thermoplastic composite material structural elements and of the other hand transfer and connection devices for transferring said structural elements from respective storage areas of said plurality of storage areas to said mobile support and connecting together said structural elements on said mobile support so as to be able to produce a preform;wherein said mobile support is driven sequentially in translation in a feed direction and said storage areas are arranged laterally relative to said mobile support, and in that said transfer and connection devices include transfer carriages mobile in translation in a transfer direction substantially perpendicular to said feed direction to transfer said structural elements sequentially onto said mobile support in said transfer direction.2. The installation as claimed in claim 1 , wherein said storage areas are paired claim 1 , the storage areas of each of the pairs of storage areas being opposite each other relative to ...

VARIABLE THICKNESS PREFORM FOR A BOTTLE

A preform for a container has a hollow cylindrical main body having a first thickness, a hollow cylindrical thick portion having a second thickness greater than the first thickness, and a curved end portion. Inner surfaces of the main body, the thick portion, and the end portion form a cavity. 1. A preform for a container , comprising:a hollow cylindrical main body having a first thickness;a hollow cylindrical thick portion having a second thickness greater than the first thickness; anda curved end portion,wherein inner surfaces of the main body, the thick portion, and the end portion form a cavity.2. The preform as recited in claim 1 ,wherein an outer diameter of the thick portion is greater than that of the main portion.3. The preform as recited in claim 1 ,wherein an inner diameter of the thick portion is the same as that of the main portion.4. The preform as recited in claim 1 , further comprising:a tapered transition portion formed between the main body and the thick portion, such that the thickness increases gradually from the main body to the thick portion.5. The preform as recited in claim 2 , further comprising:a tapered transition portion formed between the main body and the thick portion, such that the outer diameter increases gradually from the main body to the thick portion.6. The preform as recited in claim 1 , further comprising:a threaded neck portion disposed above the main body.7. The preform as recited in claim 1 , further comprising:an integral handle attached to the main body at an upper attachment point, and attached to the thick portion at a lower attachment point.8. The preform as recited in claim 1 , further comprising:an integral handle attached to the main body at both an upper attachment point and a lower attachment point.9. The preform as recited in claim 4 , further comprising:an integral handle attached to the main body at an upper attachment point, and attached to the tapered transition portion at a lower attachment point.10. The ...

PREFORM

A preform for use in molding a bottle by blow molding includes a tubular sprout portion and a bottomed tubular preform body. The preform has a weight ranging from 82 to 90 g. The maximum wall thickness of the preform body ranges from 4.5 to 5.0 mm. The preform has a total length ranging from 165 to 175 mm. 1. A preform for use in molding a bottle by blow molding , comprising:a tubular sprout portion and a bottomed tubular preform body;wherein the preform has a weight ranging from 82 to 90 g;the maximum wall thickness of the preform body ranges from 4.5 to 5.0 mm; andthe preform has a total length ranging from 165 to 175 mm.2. The preform of claim 1 , wherein:a joint portion of the preform body to the spout portion comprises a tapered portion whose wall thickness progressively increases as it extends away from the spout portion; andthe tapered portion has a straight outer circumferential face and a tapered inner circumferential face.3. The preform of claim 2 , wherein the tapered portion has length ranging from 4 to 12 mm.4. The preform of claim 1 , wherein the preform is configured to be used for molding a bottle in which a ratio of a length of a body portion relative to the total length of the bottle ranges from 0.30 to 0.50. This disclosure relates to a preform for use in molding a bottle by the blow molding technique.A resin-made bottle to be filled with e.g. beverage is formed generally by the blow molding technique. Specifically, such resin-made bottle can be obtained by a series of steps illustrated respectively in . Namely, after a preform (parison) in the form of a test tube is heated to an appropriate temperature by a heater (), this hot preform is set in a mold having a desired shape (). Then, the preform is stretched in the vertical direction by a stretching rod (), then, an amount of high-pressure air is blown into the preform to blow it out into a bottle shape ().Moreover, if the above-described series of blow molding steps are carried out jointly in ...

CONTAINER, PREFORM ASSEMBLY AND METHOD AND APPARATUS FOR FORMING CONTAINERS

Container comprising an inner container and an outer container with facing surfaces, wherein at least part of at least one of the facing surfaces has a surface roughness higher than about 0.1 Ra and/or wherein the difference in roughness of said facing surfaces is at least over a part more than about 0.1 Ra.

COMPOSITE STRUCTURES HAVING INTEGRATED STIFFENERS WITH SMOOTH RUNOUTS AND METHOD OF MAKING THE SAME

A unitized composite structure comprises a composite member having at least one integrally formed composite stiffener. At least one end of the stiffener includes a runout forming a substantially smooth transition between the stiffener and the composite structure.

MANUFACTURING PLASTIC COMPOSITE ARTICLES

A method of manufacturing a product includes the steps of providing a first and a second product part, each including a structure of fibers; arranging the first and second product parts relative to one another and against a support; providing a connecting element having a thermoplastic material; pressing the connecting element against the product parts to compress the semi-parts between the connecting element and the support and impinging the connecting element with energy, thereby causing thermoplastic material of the connecting element to become flowable, and causing the connecting element to be pressed into the product parts; and causing the thermoplastic material to re-solidify, thereby connecting the first and second product parts with each other. 2. The method according to claim 1 , wherein the product is a semi-finished product for a molding process of an article of a fiber reinforced composite material claim 1 , and wherein the product parts are semi-finished product parts of fibers.3. The method according to claim 1 , wherein the steps of pressing and impinging are at least partially carried out simultaneously.4. The method according to claim 1 , wherein the steps of providing a connecting element claim 1 , of pressing and impinging claim 1 , and of causing the thermoplastic material to re-solidify may be repeated to introduce a plurality of connecting elements into the product parts.5. The method according to claim 1 , wherein the connecting element comprises at least one piercing tip.6. The method according to claim 1 , wherein the connecting element is pin-shaped with at least one distal tip.7. The method according to wherein the connecting element has a proximal head portion.8. The method according to claim 1 , wherein the connecting element has a plurality of pin portions and a distal bridge portion connecting the pin portions.9. The method according to claim 1 , wherein the connecting element consists of thermoplastic material.10. The method according ...

Sandwich Component and Method for Producing a Sandwich Component

A sandwich component and method of producing the sandwich component are provided, wherein the sandwich component has a first cover layer, a second cover layer, and a core disposed therebetween. In the sandwich component, the cover layers are each formed from an outer layer made of a fiber-reinforced thermoplast material having greater resistance to a certain solvent and, fused therewith, an inner layer made of a thermoplast material having lower resistance to the solvent. The core has outer layers, each of which is formed from a thermoplast material having lower resistance to the solvent, and an inner structure, which is formed entirely or partially from a thermoplast material having greater resistance to the solvent. The inner layers of the cover layers were each fused with one of the outer layers of the core with the use of the solvent. 1. A sandwich component , comprising:a first cover layer, a second cover layer, and a core disposed therebetween, whereinthe first and second cover layers are each formed from an outer layer made of a fiber-reinforced thermoplast material having greater resistance to a certain solvent and, fused therewith, an inner layer made of a thermoplast material having a lower resistance to the solvent,the core has outer layers each of which is formed from a thermoplast material having lower resistance to the solvent, and an inner structure, which is formed entirely or partially from a thermoplast material having greater resistance to the solvent, andthe inner layers of the cover layers are each fused with one of the outer layers of the core with the use of the solvent.2. The sandwich component according to claim 1 , wherein the thermoplast materials having lower solvent resistance are identical for an inner layer of a cover layer and the outer layer of the core fused therewith.3. The sandwich component according to claim 1 , wherein at least one of the thermoplast materials is selected from a group comprising: ABS claim 1 , PA claim 1 , PBT ...

FLUID DIRECTING ASSEMBLY

A fluid directing assembly can comprise a molded support comprising a modified epoxy molded compound which includes epoxy resin, cross-linker, filler, and is devoid of wax release agent. The assembly can also include a silicon die attached to the molded support and wherein the silicon die and the molded support define a fluid directing channel. 1. A fluid directing assembly , comprising:a molded support comprising a modified epoxy molded compound which includes epoxy resin, cross-linker, and filler, and is devoid of wax release agent; anda silicon die attached to the molded support,wherein the silicon die and the molded support define a fluid directing channel.2. The fluid directing assembly of claim 1 , further comprising a circuit board attached to the molded support.3. The fluid directing assembly of claim 2 , wherein the silicon die and the circuit board are attached to the molded support by a heating and compressing the modified epoxy molding compound around the silicon die and the circuit board.4. The fluid directing assembly of claim 2 , wherein the circuit board is a printed circuit board.5. The fluid directing assembly of claim 1 , wherein the fluid directing assembly includes a plurality of silicon dice and a plurality of fluid directing channels associated therewith.6. The fluid directing assembly of claim 1 , wherein the epoxy resin is present at from 1 wt % to 25 wt % claim 1 , the cross-linker is present at from 1 wt % to 25 wt % claim 1 , and the filler is present at from 40 wt % to 95 wt %.7. The fluid directing assembly of claim 1 , wherein the cross-linker is a Bisphenol-A claim 1 , polyetherpolyamine claim 1 , or a phenolic hardener.8. The fluid directing assembly of claim 1 , wherein the filler is used silica claim 1 , or fumed silica.9. The fluid directing assembly of claim 1 , wherein the modified epoxy molding compound further comprising a catalyst.10. A printhead for claim 1 , inkjet printing claim 1 , comprising:{'claim-ref': {'@idref': 'CLM ...

Preform of Plastic Material with Lightened Closed End

Preform, made of plastic material for the manufacturing of hollow bodies through a blow-moulding process, in which said preform comprises a substantially cylindrical body () having an open end () and a closed end {), in which said closed end () has an outer surface with a varying curvature which is entirely enveloped within a hemispherical surface having a radius equal to the outer radius (R) of the cylindrical body () of the preform, said outer surface with varying curvature being tangent to the hemispherical surface in which it is enveloped in correspondence of the circular crown C and of the preform vertex. 112441. Preform made of plastic material for the manufacturing of hollow bodies through a blow-moulding process , wherein said preform comprises a substantially cylindrical body () having an open end () and a closed end () , characterised in that said closed end () has a varying-curvature outer surface which is entirely enveloped within a hemispherical surface having a radius equal to the outer radius (R) of the cylindrical body () of the preform , said varying-curvature outer surface being tangent to the hemispherical surface in which it is enveloped in correspondence of circular crown C and of the preform vertex.21. Preform as claimed in claim 1 , wherein said varying-curvature outer surface consists of multiple claim 1 , adjacent spherical areas claim 1 , each on having a specific curvature radius claim 1 , said areas being preferably mutually tangent and tangent to the cylindrical body () of the preform claim 1 , along the mutual contact circumferences.3. Preform as claimed in claim 1 , wherein the zone of the closed end (f) of the preform having minimum wall thickness is found within an angle ranging between 45° and 85° claim 1 , and more preferably between 55° and 75° claim 1 , as seen in an axial section of the preform claim 1 , said angle having its vertex in the centre of circular crown (C) plane (c) the angle of 90° being the one having the other of ...

Cannular Device and Method of Manufacture

A cannula comprising a polymeric material which is phthalate-free, yet retains flexibility, workability and elongation properties so as to avoid kinking when bent. Also disclosed is a method of manufacturing a cannular device comprising extruding a flexible, biocompatible, phthalate-free polymeric composition through a round die into a tube, pulling the tube through a water bath at a rate established according to a predetermined function, and cutting the tube to for a cannular device, wherein the predetermined function periodically modulates a pulling rate. 122-. (canceled)23. A method of manufacturing a cannular device , comprising:extruding a flexible, biocompatible, phthalate-free polymeric composition through a round die into a tube;pulling the tube through a water bath at a rate established according to a predetermined function; andcutting the tube to form a cannular device;wherein the predetermined function periodically modulates a pulling rate.24. The method of claim 23 , wherein the predetermined function provides periods in which the pulling rate increases from a minimal pulling rate to a maximal pulling and periods in which the pulling rate decreases from a maximal pulling rate to a minimal pulling rate so that the tube is formed having an oscillating cross-sectional diameter that changes with time.25. The method of claim 24 , wherein the predetermined function further provides periods in which the pulling rate is not modulated.26. The method of claim 25 , wherein the predetermined function further provides that the periods in which the pulling rate is not modulated are interposed between periods in which the pulling rate is modulated.27. The method of claim 25 , wherein the cut tube is adapted to resist kinking when tested according to an 180° bend test.28. The method of claim 25 , wherein the polymeric composition is free of plasticizers.29. The method of claim 25 , wherein the polymeric composition comprises a thermoplastic elastomer.30. The method of ...

FIBER MANUFACTURING METHOD, NON-WOVEN FABRIC MANUFACTURING METHOD, AND FIBER MANUFACTURING EQUIPMENT

A fiber manufacturing method includes the following steps of: dissolving a polymer in a solvent to obtain a polymer solution; spraying the polymer solution into a liquid heated to a boiling point of the solvent or higher, and evaporating the solvent to precipitate a fibrous polymer in a sealed precipitation tank, the liquid being immiscible with the polymer and the solvent; conveying the precipitated fibrous polymer in a liquid from the precipitation tank; water-rinsing the fibrous polymer conveyed in the liquid in the conveying step in a sealed water-rinsing tank; conveying the water-rinsed fibrous polymer in a liquid from the water-rinsing tank; and cooling and condensing solvent gas that is generated in the spraying step and the water-rinsing step. 1. A fiber manufacturing method comprising the following steps of:(A) dissolving a polymer in a solvent to obtain a polymer solution;(B) spraying the polymer solution into a liquid heated to a boiling point of the solvent or higher, and evaporating the solvent to precipitate a fibrous polymer in a sealed precipitation tank, the liquid being immiscible with the polymer and the solvent;(C) conveying the precipitated fibrous polymer in a liquid from the precipitation tank;(D) water-rinsing the fibrous polymer conveyed in the liquid in the step (C) in a sealed water-rinsing tank;(E) conveying the water-rinsed fibrous polymer in a liquid from the water-rinsing tank; and(F) cooling and condensing solvent gas that is generated in the step (B) and the step (D).2. A non-woven fabric manufacturing method comprising the following steps of:(A) dissolving a polymer in a solvent to obtain a polymer solution;(B) spraying the polymer solution into a liquid heated to a boiling point of the solvent or higher, and evaporating the solvent to precipitate a fibrous polymer in a sealed precipitation tank, the liquid being immiscible with the polymer and the solvent;(C) conveying the precipitated fibrous polymer in a liquid from the ...

METHOD FOR PRODUCING FRP PRECURSOR AND DEVICE FOR PRODUCING SAME

Provided are a method for producing an FRP precursor and a device for producing an FRP precursor, wherein the said FRP precursor is excellent in impregnability of a thermosetting resin as well as in heat resistance of the FRP precursor to be obtained. The method for producing the FRP precursor, wherein each of one pair of thermosetting resin films 54 are adhered to each of both surfaces 40and 40of an aggregate 40 in a form of a sheet, comprises: an attaching process to attach an organic solvent 13to the both surfaces 40and 40of the aggregate 40; a film press-adhering process wherein under a normal pressure, each of the aggregate-side film surfaces 54of the pair of the films 54 and 54 is press-adhered to each of the both surfaces 40and 40of the soaked aggregate 40 to obtain the FRP precursor 60; and an attached amount adjusting process to adjust amount of the organic solvent 13that is attached to the soaked aggregate 40. The attaching process comprises soaking of the aggregate 40 into the vessel 13 1. A method for producing an FRP precursor , wherein the method is to produce the FRP precursor by adhering a thermosetting resin film to one surface of an aggregate that is in a form of sheet , the method comprising:an attaching process to attach an organic solvent to the one aggregate's surface, anda film press-adhering process to obtain the FRP precursor wherein under a normal pressure, of both surfaces of the film, an aggregate-side film surface, which is a surface in an aggregate side thereof, is press-adhered to the one aggregate's surface which is attached with the organic solvent.2. The method for producing the FRP precursor according to claim 1 , wherein the method further comprises a heating process to heat from an opposite-to-aggregate-side film surface of the both surfaces of the film claim 1 , the opposite-to-aggregate-side film surface being a film surface which is in an opposite side to the aggregate-side film surface.3. A method for producing an FRP ...

METHOD FOR PRODUCING FRP PRECURSOR AND DEVICE FOR PRODUCING SAME

Provided are a method for producing an FRP precursor and a device for producing an FRP precursor, wherein the method and the device have a good productivity, and under a normal pressure, enable filling of a resin into a bulk gap of an aggregate as well as prevent the resin from spouting out from an edge portion thereof. The method for producing the FRP precursor is to produce the FRP precursor by melt-adhering each of a pair of thermosetting resin films to each of both surfaces and of an aggregate that is in a form of a sheet, the method comprising: an aggregate's surface heating process to heat aggregate's both surfaces, i.e., the both aggregate's surfaces and of the aggregate and a film press-adhering process to obtain the FRP precursor wherein under a normal pressure, one aggregate-side film surface of the pair of the films is press-adhered to one surface of the heated both aggregate's surfaces, and another aggregate-side film surface of the pair of the films is press-adhered to another surface of the heated both aggregate's surfaces. 1. A method for producing an FRP precursor , wherein the method is to produce the FRP precursor by melt-adhering a thermosetting resin film to one surface of an aggregate that is in a form of sheet , the method comprising:an aggregate's surface heating process to heat one surface of the aggregate, anda film press-adhering process to obtain the FRP precursor wherein under a normal pressure, of both surfaces of the film, an aggregate-side film surface, which is a surface in an aggregate side thereof, is press-adhered to an aggregate's surface, which is one surface of the heated aggregate.2. The method for producing the FRP precursor according to claim 1 , wherein the film press-adhering process is a process to press-adhere the film to the aggregate with heating the film and the aggregate claim 1 , and a heating temperature of one surface of the aggregate in the aggregate's surface heating process is higher than a heating temperature ...

MOLDED MEMBER AND METHOD OF MANUFACTURING THE SAME

A molded member includes a base member including fibers, a flattening layer having a flat surface and disposed on one surface of the base member, and a molded part welded on the flat surface of the flattening layer. 1. A molded member comprising:a base member including fibers;a flattening layer having a flat surface and disposed on one surface of the base member; anda molded part welded on the flat surface of the flattening layer.2. The molded member according to claim 1 , whereinthe base member includes the fibers and first thermoplastic resin, the fibers are bonded to each other with the first thermoplastic resin,the molded part is made of second thermoplastic resin, andthe flattening layer has a base member side portion facing the base member and a molded part side portion where the molded part is welded, and at least the base member side portion and the molded part side portion include third thermoplastic resin.3. The molded member according to claim 2 , whereinthe flattening layer includes a base member side layer, a molded part side layer, and an intermediate layer,the base member side layer is the base member side portion,the molded part side layer is the molded part side portion, andthe intermediate layer is disposed between the base member side layer and the molded part side layer and includes fourth thermoplastic resin having a melting point higher than that of the third thermoplastic resin included in the base member side layer and that of the third thermoplastic resin included the molded part side layer.4. The molded member according to claim 1 , wherein the base member has a density that is from 0.25 g/cmto 0.5 g/cm.5. The molded member according to claim I claim 1 , wherein the flattening layer extends over an entire area of the one surface of the base member.6. The molded member according to claim 1 , wherein the base member further includes a foaming agent.7. The molded member according to claim 2 , whereinthe first thermoplastic resin is compatible ...

FIBER MOLDING PREFORM COMPOSITION AND PROCESS FOR PREFORM FORMATION

A preform for thermoset resin composition molding is provided that upon cure forms a variety of molded and fiber reinforced articles used in a variety of applications such as vehicle components including bed lines, body components, trim, interior components, and undercar components; architectural components such as trim and doors, marine components including hulls, trim, and cockpit pieces; and similar structures in aerospace settings. A novel slurry composition, a novel centrifugal process, or a combination thereof provide superior quality preforms that are created with greater throughput relative to conventional techniques. The inhibition of fiber movement between the time such a fiber contacts the mold, or fibers already in place on the mold, and the time the fibers are set in position provides a superior fiber homogeneity and randomized orientation relative to existing slurry techniques with attributes of low scrap generation, and process flexibility with respect to part shape and fiber material. 1. A slurry preform composition comprising:a plurality of fibers having an average fiber length and fiber diameter;{'sup': 1', '2', '3', '1', '2', '3', '1', '1', '2', '1', '2', '3, 'sub': 2', '2', '1', '6', '1', '6', '1', '6', '2', '1', '6', '1', '6', '1', '6', '2', '1', '6', '1', '6', '1', '6', '1', '6', '1', '6', '2, 'a dispersing agent molecule or monomer having the general formula (R)-C═N—Ror R-pyrrolidines, (R)—C═N—Ror R-pyrrolidines, where Rin each instance is independently H, C-Calkyl, C-Calkenyl, and C-Calkyl having a substituent, the substituent being H, OH, COOH, NH, NH C-Calkyl or Rin both instances are contented to form a 5 or 6 member ring structure; Ris C-Calkyl, OH, and C-Calkyl having a substituent, the substituent being H, OH, COOH, NH, NH C-Calkyl; or Rand Rcombine to form a 5 or 6 member ring structure and Ris H, C-Calkyl, C-Ccarboxyl, C-Chydroxyl, or C-CNH; and'}a solvent forming a slurry of said plurality of fibers and said dispersing agent.2. The ...

PARISON SEPARATION DEVICE, BLOW MOLDING MACHINE, AND METHOD FOR MANUFACTURING BLOW-MOLDED ARTICLE

A parison separation device () according to an embodiment includes a cutter () with a cutting edge (), the cutting edge () extending in a one direction and facing upward, and a block (), the cutter being attached to an upper part of the block (), inclined surfaces () being formed on both sides of the block () in a thickness direction of the cutting edge (), each of the inclined surfaces () including a component that is inclined increasingly downward as it gets closer to one direction side end, in which the parison separation device () is disposed on a discharging direction side of a discharging port of a parison and configured to cut the parison discharged from the discharging port. 1. A parison separation device comprising:a cutter with a cutting edge, the cutting edge extending in a one direction and facing upward; anda block, the cutter being attached to an upper part of the block, inclined surfaces being formed on both sides of the block in a thickness direction of the cutting edge, each of the inclined surfaces including a component that is inclined increasingly downward as it gets closer to one direction side end, whereinthe parison separation device is disposed on a discharging direction side of a discharging port of a parison and configured to cut the parison discharged from the discharging port.2. The parison separation device according to claim 1 , whereinthe one direction side is a radius direction from a central axis toward an outer side in a plane orthogonal to the central axis, the central axis being parallel to a vertical direction in the discharging port, the discharging port having an annular shape when the parison is discharged from a gap between a die including a through hole and a core inserted inside the through hole,the cutter is disposed on the discharging direction side of the discharging port and disposed so as to cross the discharging port, and is configured to cut the parison discharged from the discharging port, andthe block separates the ...

Stiffened fuselage component as well as method and apparatus for manufacturing a stiffened fuselage component

A stiffened fuselage component made of a fiber reinforced composite material, in particular for use in an aircraft, comprises a skin element and a plurality of elongated stiffening elements forming a stiffening element pattern comprising a plurality of node points and being attached to an inner surface of the skin element. At least some of the node points are defined by an intersection of at least two stiffening elements at an acute angle or an obtuse angle. At least some of the elongated stiffening elements are shaped so as to define an internal cavity delimited by an inner surface of the stiffening elements and covered by the skin element. 1. A stiffened fuselage component made of a fiber reinforced composite material , comprising:a skin element, anda plurality of elongated stiffening elements forming a stiffening element pattern comprising a plurality of node points and being attached to an inner surface of the skin element,wherein at least some of the node points are defined by an intersection of at least two stiffening elements at an acute angle or an obtuse angle, andwherein at least some of the elongated stiffening elements are shaped so as to define an internal cavity delimited by an inner surface of the stiffening elements and covered by the skin element.2. The stiffened fuselage component according to claim 1 , wherein the stiffening element pattern is an irregular pattern claim 1 , the distribution of the stiffening elements in the stiffening element pattern being adjusted in dependence on load bearing requirements defined for different regions of the stiffened fuselage component.3. The stiffened fuselage component according to claim 1 , wherein at least one ofat least some of the plurality of elongated stiffening elements differ from each other in at least one of length, cross sectional shape and cross-sectional area, and a varying cross sectional shape,', 'a varying cross-sectional area and', 'a curve with a constant or varying curvature., 'at least ...

EMBEDDED CO-CURED COMPOSITE MATERIAL WITH LARGE-DAMPING AND ELECTROMAGNETIC WAVE ABSORBING PROPERTIES AND PREPARATION METHOD AND APPLICATION THEREOF

Disclosed are an embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties and a preparation method and an application thereof, belonging to damping composite materials. The embedded co-cured composite material is formed by interlacing a plurality of electromagnetic wave absorbing prepreg layers and a plurality of electromagnetic wave absorbing damping layers. Each of the electromagnetic wave absorbing prepregs layers includes a fiber cloth, a micro-nano electromagnetic wave absorbing material and a resin. Contents of the micro-nano electromagnetic wave absorbing material in the electromagnetic wave absorbing prepreg layers and the electromagnetic wave absorbing damping layers have a gradient increase or decrease according to a sequence of the electromagnetic wave absorbing prepreg layers. Each of the electromagnetic wave absorbing damping layers includes a viscoelastic damping material and the micro-nano electromagnetic wave absorbing material. 1. An embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties , comprising:a plurality of electromagnetic wave absorbing prepreg layers; anda plurality of electromagnetic wave absorbing damping layers;wherein the plurality of electromagnetic wave absorbing prepreg layers and the plurality of electromagnetic wave absorbing damping layers are alternately laid to form the embedded co-cured composite material;each of the electromagnetic wave absorbing prepreg layers comprises a fiber cloth, a micro-nano electromagnetic wave absorbing material and a resin, wherein the micro-nano electromagnetic wave absorbing material is distributed in the resin, and the resin is distributed in the fiber cloth; contents of the micro-nano electromagnetic wave absorbing material in the electromagnetic wave absorbing prepreg layers have a gradient increase or decrease according to a sequence of the electromagnetic wave absorbing prepreg layers;each of the ...

METHOD AND PROCESS TO PRODUCE ADVANCED THEROMOPLASTIC BASED COMPOSITE MATERIAL PARTS

The present invention relates to a novel fiber-reinforced thermoplastic composite material and a method and apparatus for producing thereof. The fiber reinforced thermoplastic composite material is advantageously used in many fields of applications such as aircraft, aerospace plane, automobile, vessel, construction and civil engineering materials, electronic device, furniture pieces or leisure parts and sporting goods or parts of it. 1. A method of producing a fiber reinforced thermoplastic composite part or complex component thereof , comprising the steps of:laying one or a plurality of elements comprising reinforcing fibers cloth layers or any other reinforcing material fabric onto a surface of a hollow or not hollow part of a thermoplastic polymeric material wherein the thermoplastic polymeric material preferably comprising a prefabricated or preformed shape preferably prepared within a mold by a roto-molding thermal process;using the roto-molding or shape mold, taking back and accommodating the part or component comprising the reinforced material surface layers to fit within the mold or initial forming shape interior;compressing a polymeric part wall and reinforcing fiber cloth against a mold wall inside the mold using pressurized gas from the internal space of hollow piece, rising in parallel its temperature to obtain a viscoelastic condition or near melting condition of the polymer to achieve a compressed contact between the reinforcing fiber or pre-impregnated reinforcing fiber;creating a single monolithic material composite with a thermoplastic polymer piece and comprising multi-ply layers integrated to the original polymeric resin by a fusion bonding and microfluidics mechanism between fiber cloth and polymer piece;conducting the production of thermoplastic composite material under pressure against the mold wall controlling temperature, viscoelastic condition and cooling rate;optionally, laying fiber reinforcing material onto the interior surface of the ...

Process for the production of plastic molded parts from several liquid plastic components that polymerize rapidly when mixed with heat generation

手机壳体加工工艺、手机壳体及手机

本发明公开了一种手机壳体加工工艺、手机壳体及手机，属于手机零部件及其加工方法领域，为解决现有的手机金属壳体生产成本高的问题而设计。本发明提供的手机壳体加工工艺至少包括下述步骤：将待加工件拆分为内部结构件和外部结构件；将内部结构件通过冲压或压铸成型形成手机壳体的内部件。本发明提供的手机壳体采用上述手机壳体加工工艺制成。本发明提供的手机包括上述手机壳体。本发明手机壳体加工工艺能够提高手机壳体的加工效率、降低加工成本。本发明手机壳体及设有该手机壳体的手机制造成本较低、生产效率高、外形美观大方。

Manufacturing method of foam float and foam float manufactured by the same

According to the present invention, there is provided an FMB preparation step of preparing a foaming FMB for producing a foamed product in a sheet form produced through a kneading step; An aging step of aging the FMB; And a forming step of forming an expanded molded article by curing the FMB obtained by the aging step, wherein the FMB comprises NBR, a reinforcing agent, a phenol resin, a sulfur vulcanizing agent and other additives, By weight or less and 14% by weight or less.

Patent JPS5022071B1

Method for making torsion box having assembled multi-spars and the torsion box made by the method

본 발명의 목적은 토션박스 제작 시 오토클레이브 프리프레그 성형 방식을 탈피하여 보다 생산성, 품질 및 경제성을 향상할 수 있도록 하는, 다중스파 일체형 토션박스 제작방법 및 상기 제작방법에 의한 토션박스를 제공함에 있다. 보다 상세하게는, 드라이파이버를 직조하는 브레이딩 공정을 이용하여 토션박스를 구성하는 각 요소의 형상을 형성하고, 일체형의 치구에 여러 요소들을 넣고 수지재를 주입하는 RTM 공정을 이용하여 완전 일체형으로 토션박스를 제작해 내는, 다중스파 일체형 토션박스 제작방법 및 상기 제작방법에 의한 토션박스를 제공함에 있다. It is an object of the present invention to provide a multi-spar integrated torsion box manufacturing method and a torsion box by the manufacturing method, which can improve productivity, quality and economic feasibility by breaking away from the autoclave prepreg molding method when manufacturing the torsion box. . In more detail, the shape of each element constituting the torsion box is formed by using a braiding process of weaving dry fibers, and various elements are put in an integrated jig and a resin material is injected into a complete one-piece using the RTM process. To provide a multi-spar integrated torsion box manufacturing method for manufacturing a torsion box, and a torsion box by the manufacturing method.

Method of cutting node connections of cells of glass-fiber-reinforced honeycomb block

Изобретение относится к области механической обработки сотового заполнителя на основе стеклоткани с целью придания ему гибкости. Техническим результатом является повышение гибкости стеклосотопластовых панелей, вырезаемых из стеклосотопластового блока, с сохранением достаточной прочности. Технический результат достигается способом вырезки узловых соединений ячеек стеклосотопластового блока, который включает разметку и вырезку стенок ячеек с использованием цилиндрической оправки. Оправку выполняют с внешним радиусом 0,75-0,95 длины грани ячейки, сквозным осевым отверстием радиусом 0,2-0,4 длины грани ячейки, буртиком и расположенными с противоположной ему стороны под углом 120° друг к другу сквозными осевыми прорезями, имеющими ширину не менее двойной толщины стенки ячейки и длину не менее половины высоты стеклосотопластового блока. Цилиндрическую оправку базируют посредством упомянутых осевых прорезей на стенках ячеек и осуществляют вырезку стенок ячеек на глубину, равную не менее половины высоты стеклосотопластового блока, закрепленной в дрели цилиндрической концевой фрезой, которую вводят в сквозное осевое отверстие цилиндрической оправки. Переворачивают стеклосотопластовый блок на 180° и проводят вырезку стенок ячеек с его противоположной стороны. При этом удаляемая часть грани ячейки составляет 0,25-0,35 ее длины. Разрезают стеклосотопластовый блок на стеклосотопластовые панели. 3 з.п. ф-лы, 3 ил., 2 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 637 709 C1 (51) МПК B29C 73/26 (2006.01) B29B 11/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016132726, 08.08.2016 (24) Дата начала отсчета срока действия патента: 08.08.2016 Дата регистрации: (45) Опубликовано: 06.12.2017 Бюл. № 34 2 6 3 7 7 0 9 R U (56) Список документов, цитированных в отчете о поиске: RU 2090362 C1, 20.09.1997. US 20150298335 A1, 22.10.2015. JP 2003220605 A1, 05.08.2003. KR 1020110057998 A, 01.06.2011. US 5713706 A, 03.02.1998. ...

Injection molding manufacturing method of natural material surface

The present invention relates to a method of manufacturing a natural material sheet, comprising the steps of: a) preparing a sheet of natural material; b) pre-cutting to form a cut-out portion around the outer periphery of the formed natural material sheet; c) D) shaping unnecessary portions of the natural material sheet formed into a three-dimensional shape, and e) trimming the unneeded portion of the natural material sheet formed into a three-dimensional shape, and e) A step of placing the natural material sheet on the back surface of the natural material sheet in the injection molding machine and then injecting the natural material sheet on the back surface of the three-dimensional natural material sheet to produce an injection molded article, The natural material sheet is formed by bending the outer periphery of the natural material sheet by forming the cut portion around the outer periphery to be bent, Provided is a method for producing an injection-molded article of a natural material surface which can be formed into a smooth surface that does not cause cracks, wrinkles, bending, tearing or the like.

Plastic-coated barrel handle and production method thereof

本发明公开了一种浸塑桶提手及其生产方法，包括桶提手主体、把手，其特征在于：桶提手主体为弧形钢筋体（1），弧形钢筋体两端设有内折的蘑菇头（4），弧形钢筋体及蘑菇头外披覆有一层0.5‑5mm厚的浸塑层（3），桶提手中部注塑有把手（2）。本发明产品涂膜的附着性强、耐低温、耐冲击、耐磨、耐湿热、耐盐雾、即使浸泡在盐水溶液中也能保持其特性，耐拉、耐酸碱、耐老化、耐高压、耐化学品、耐候性优良，露天使用不会产生裂纹等性能。生产过程中几乎无三废产生，生产条件温和，有利于环境保护。涂膜的柔韧性好，拉伸强度及断裂伸长率优异。

A method of manufacturing a piece of reinforced composite material

Un método de fabricación de una pieza de material compuesto (12) que presenta una estructura de material compuesto que comprende al menos una capa de refuerzo a base de fibras, tejidos, o productos textiles de refuerzo, y al menos una matriz de impregnación (R, R1, R2), consistiendo el método en ensamblar la estructura, colocar dicha estructura en un molde (5, 8), impregnar dicha estructura con la matriz de impregnación (R, R1, R2) por inyección o infusión, y solidificar dicha estructura impregnada elevándola a una temperatura determinada, estando el método caracterizado por que el método consiste en: - usar al menos dos piezas principales distintas (1, 2c) para componer una estructura integral (3); siendo una de las piezas principales distintas (1) un pliegue de fibras de refuerzo secas de un elemento de panel y estando la otra de las piezas principales distintas (2c) conformada en un miembro de perfil; - colocar en al menos una de las piezas principales (1, 2c) o entre las piezas principales (1, 2c) una lámina termoplástica (4) con el fin de hacer una interfaz de unión mecánica de la estructura integral (3); obteniéndose en la estructura integral (3) la unión mecánica entre la pieza principal de pliegue (1) y la pieza principal de miembro de perfil (2c) por fusión seguida de la solidificación de la lámina termoplástica (4); y - en el que la lámina termoplástica (4) presenta un espesor que se encuentra en el intervalo de 0,02 mm a 1 mm y los materiales que constituyen la lámina termoplástica (4) incluyen al menos un material que se expande por efecto del calor. A method of manufacturing a piece of composite material (12) that has a composite material structure that comprises at least one reinforcing layer based on fibers, fabrics, or reinforcing textile products, and at least one impregnation matrix (R , R1, R2), the method consisting of assembling the structure, placing said structure in a mold (5, 8), impregnating said structure with the impregnation matrix (R, ...

Recycle apparatus for waste plastic

The present invention relates to a waste plastic recycling apparatus which can contribute to preventing air pollution by efficiently processing harmful gases generated in a process of melting waste plastic. The waste plastic recycling apparatus comprises: a first melting unit; a second melting unit; a cooling unit; an evaporation unit; and a crushing unit.

Z-direction enhancing method suitable for dry-state fiber preform

本发明属于树脂基复合材料液态成型技术，涉及一种适用于干态纤维预成型体的Z向增强方法。Z‑Pin植入预制体由Pin针和泡沫层组成，泡沫层置于多孔板和胶黏剂涂层之间，所述多孔板厚度为1mm～3mm，孔径为0.3mm～1mm,孔间距为3mm～5mm，多孔板[2]为金属材质。本发明提出了一种适用于干态纤维预成型体的Z‑Pin植入预制体，通过将现有Z‑Pin植入预制体中的高密度泡沫层换成胶黏剂涂层，并在低密度泡沫层下方增设一层多孔板，增加了对Pin针植入尾端的支撑，和初始植入段的导向，解决了现有的Z‑Pin植入预制体中泡沫载体对Pin针支撑和导向效果差，植入后切割去除泡沫载体时Pin亦偏转的问题。

METHOD AND DEVICE FOR CONTINUOUS CASTING AND PRODUCTION OF GRANULES FROM THREADS FROM THERMOPLASTIC MATERIAL

1. Устройство для непрерывного литья и получения гранул из нитей (4) из термопластичного материала, содержащее сопловую головку (1), имеющую множество сопловых отверстий (2), каждое из которых имеет диаметр не более 4 мм, и орошаемое водой направляющее устройство (6) для охлаждения и проведения нитей (4) из термопластичного материала от соплового отверстия (2) через подающие валики (8, 9) к входу режущего инструмента (10), предназначенного для измельчения нитей из термопластичного материала до гранулята (12) длиной от 2 до 3 мм, отличающийся тем, что скорость потока расплава при охлаждении нитей (4) по мере их перемещения от сопел через направляющее устройство (6) к подающим валикам (8, 9) режущего инструмента увеличивается от по меньшей мере 100 м/мин в пространственно центральной области сопловых отверстий (2) настолько, что режущий инструмент (10) разрезает нити (4) с частотой резания более 2000 разрезов/с.2. Способ непрерывного литья и получения гранул из нитей (4) из термопластичного материала с использованием устройства по п.1, отличающийся тем, что нити (4), выходящие из сопловых отверстий (2), из-за малых размеров соплового отверстия, а именно - не более 4 мм, имеют высокий градиент скорости в области сопловых отверстий (2) по направлению от внутренней поверхности сопловых отверстий (2) к центральной области сопловых отверстий, где скорость потока составляет по меньшей мере 100 м/мин, следствием чего являются сильное растяжение поверхности нитей (4) из термопластичного материала и быстрая кристаллизация в этой области и дополнительное растяжение нитей (4) из термопластичного материала из-за подачи нитей (4) из термопластичного материала в гр РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 122 263 (13) A (51) МПК B29B 9/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): АУТОМАТИК ПЛАСТИКС МАШИНЕРИ ГМБХ (DE) (21)(22) Заявка: 2011122263/05, 10.11.2009 Приоритет(ы): (30) Конвенционный приоритет: 20.11.2008 DE ...

Manufacture of material for molding optical element, manufacture of optical element and method for molding the optical element

(57)【要約】 【課題】 プリフォームの表面精度及び切断面の鏡面性 に優れた光学素子成形用素材を得る。 【解決手段】 光学素子成形用素材部２が複数個連接し た光学素子用材料からなるアレイ３を用い、一対のポン チ５５、５６によって光学素子成形用素材部２の外周部 にアレイ３の厚み方向の振動を加えた後、光学素子成形 用素材部２を打ち抜いて光学素子成形用素材を得る。

Method and device for continuous casting and making granules from threads of thermoplastic material

FIELD: process engineering. SUBSTANCE: invention relates to continuous casting and production of granules from threads of thermoplastic material. Proposed device comprises nozzle head with multiple nozzles, water-sprayer guide device to cool and direct polymer threads outcoming from nozzles via fee rollers to granulator inlet for it to grind polymer threads to obtain the granules. Said polymer threads feature higher velocity gradient in the nozzle spatially central area in direction from nozzle inner surface to central area wherein flow rate makes at least 100 m/min. Nozzle shape makes arbitrary cut volume segment of relatively large diameter ahead of the nozzles stretch notable in lengthwise direction after polymer threads enter the nozzles. Therefore its diameter decreases to be transformed into appropriate segment of the volume. Thereafter it passes through the nozzles wherein its surface is notably stretched. Polymer threads stretch so that volume segment thickness increase but crystallisation effect at segment surface caused by contraction in nozzles is not lost. EFFECT: decreased sticking of granules. 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 518 608 C2 (51) МПК B29B 9/06 (2006.01) B01J 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011122263/05, 10.11.2009 (24) Дата начала отсчета срока действия патента: 10.11.2009 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ДАЙСС Штефан (DE), ГЛЕКНЕР Франк (DE), ДАЛЬХАЙМЕР Штефан (DE) 20.11.2008 DE 102008058173.9 (43) Дата публикации заявки: 27.12.2012 Бюл. № 36 R U (73) Патентообладатель(и): АУТОМАТИК ПЛАСТИКС МАШИНЕРИ ГМБХ (DE) (45) Опубликовано: 10.06.2014 Бюл. № 16 582748 A3, 30.11.1977; . SU 727205 A1, 15.04.1980; . US 2005053689 A1, 10.03.2005. DE20217065 U1, 16.01.2003. SU 1080989 A1, 23.03.1984 (86) Заявка PCT: EP 2009/008017 (10.11.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.06.2011 (87) ...

A kind of pneumatic software tentacle of non-newtonian fluid and its forming method

本发明公开一种非牛顿流体气动软体触手及其成型方法，其中该装置由触手以及底盘组件构成。触手上部分为凹凸结构的应变层致动腔体，中间部分为应变限制层，下部为带有隔板的长方体阻尼腔体，上中部分之间为气体空腔，中下部分之间为非牛顿流体，当致动腔体内冲入气压时，由于中间应变限制层部分的应变要比上部分致动腔体单元的应变要小，因此触手向应变限制层侧弯曲，同时带动下部分阻尼腔体单元弯曲，因此阻尼腔体单元内密封的非牛顿流体受到剪切应力。非牛顿流体粘度随剪切速率发生改变，从而产生阻尼，使得触手在受到外界干扰的弯曲过程中出现的不稳定现象得以消除。并能够在复杂环境中进行稳定控制，从而有效的完成目标动作。

The manufacturing method of a rubber chip with laminated color

PURPOSE: A method for manufacturing a rubber chip with stacked color is provided to obtain various patterns by stacking the rubber chip and luminous rubbers into a plurality of layers. CONSTITUTION: Fabric rubber is prepared and is shaped into a plate shaped sheet using a roller and a calendar. Two to fifteen kinds of colors are stacked in each sheet according to the order of colors. Each sheet is compressed through one of a group including a mixing roll, the calendar, an extruder, and a hydraulic press. The sheet is pulverized into 1 to 15mm using a pulverizing unit in order to obtain various patterns.

Method for manufacturing FRP precursor and apparatus for manufacturing the same

상압 하에 있어서, 골재의 부피 공극에 대한 충전성과 단부로부터의 수지 분출 방지를 양립시킨, 생산성이 좋은 FRP 전구체의 제조 방법 및 FRP 전구체의 제조 장치를 제공한다. 시트상의 골재(40)의 양쪽 표면(40a, 40b)에 각각 열경화성 수지의 한 쌍의 필름(44)을 용융 첩부하여 FRP 전구체를 제조하는 FRP 전구체의 제조 방법은, 골재(40)의 양쪽 표면(40a, 40b)인 골재 양표면을 가열하는 골재 표면 가열 공정과, 상압 하에 있어서, 한 쌍의 필름(44)의 골재측 필름 표면(45a)을, 가열된 상기 골재 양표면의 한쪽에 압접시키고, 한 쌍의 필름(44)의 골재측 필름 표면(45a)을, 가열된 골재 양표면의 다른 쪽에 압접시켜 FRP 전구체를 얻는 필름 압접 공정을 포함한다. Provided are a method for producing an FRP precursor with good productivity and an apparatus for producing an FRP precursor that achieve both filling of aggregates with volume voids under normal pressure and prevention of ejection of resin from the ends. A method for producing an FRP precursor in which a FRP precursor is prepared by melt-adhering a pair of films 44 of a thermosetting resin to both surfaces 40a and 40b of the sheet-like aggregate 40, respectively, both surfaces of the aggregate 40 ( 40a, 40b), an aggregate surface heating step of heating both surfaces of the aggregate, and under normal pressure, the aggregate-side film surfaces 45a of the pair of films 44 are press-contacted to one of the heated aggregate surfaces, and a film pressure bonding step of pressing the aggregate-side film surfaces 45a of the pair of films 44 to the other side of both surfaces of the heated aggregate to obtain an FRP precursor.

manufacturing method for composite using preform

본 발명은 복합재 성형 제품 성형을 위해 적층되는 프리폼을 치구를 이용하여 층별로 성형 제품의 형상에 맞게 미리 성형하여 복합재 제조를 위한 몰드 위에 순차적으로 적층하는 프리폼을 이용한 복합재 제조방법에 관한 것으로, 복합재 성형 제품 성형을 위한 몰드의 표면 형상과 대응된 형상을 갖는 하층치구에 섬유를 배치하고 진공 배깅 공정을 통해 상기 섬유가 상기 하층치구의 표면에 밀착되도록 하여 상기 하층치구와 대응되는 하층프리폼을 성형하는 단계, 상기 하층치구를 통해 상기 하층프리폼이 성형되면 상기 하층치구에서 상기 하층프리폼을 탈거하는 단계, 성형된 상기 하층프리폼과 대응하는 두께 및 형상을 갖는 상층치구를 상기 하층프림폼이 탈거된 상기 하층치구에 배치하는 단계, 상기 상층치구에 섬유를 배치하고 진공 배깅 공정을 통해 상기 섬유가 상기 상층치구의 표면에 밀착되도록 하여 상기 상층치구와 대응되는 상층프리폼을 성형하는 단계, 복합재 성형 제품 성형을 위한 몰드에 하부스킨을 이루는 섬유를 적층하고 상기 섬유의 위에 코어를 배치하는 단계, 상기 코어의 위에 상부스킨을 성형하기 위해 상기 하층프리폼 성형단계 및 상기 상층프리폼 성형단계를 통해 상기 코어와 동일한 형상으로 미리 성형된 상기 하층프리폼과 상기 상층프리폼을 상기 코어에 순차적으로 적층하는 단계 및 상기 하층프리폼과 상층프리폼들이 적층되면 진공 배깅 공정을 통해 상기 하층프리폼과 상층프리폼들이 적층된 몰드로 레진을 주입하여 복합재 성형 제품을 성형하는 단계를 포함한다. 상기 상층치구를 통해 성형된 상기 상층프리폼의 하면 형상 변수 값과 상기 하층프리폼의 상면 형상 변수 값은 같고, 상기 하층프리폼과 상기 상층프리폼은 코어의 상면과 동일한 형상으로 형성되어 상기 코어에 순차적으로 적층되며, 상기 상층프리폼을 상기 하층프리폼에 배치하면 상기 하층프리폼의 상면과 상기 상층프리폼의 하면은 일치하여 밀착된다. 따라서, 복합재 성형을 위해 순차적으로 적층되는 프리폼들을 성형 제품의 형상에 맞게 미리 형성한 후 적층하므로 복합재 제품의 형상을 정교하게 성형할 수 있다. The present invention relates to a composite material manufacturing method using a preform in which a preform laminated for molding a composite material is preformed according to the shape of a molded product layer by layer using a jig, and sequentially laminated on a mold for manufacturing a composite material. Placing fibers in a lower jig having a shape corresponding to the surface shape of a mold for product molding and making the fibers adhere to the surface of the lower jig through a vacuum bagging process to form a lower preform corresponding to the lower jig , when the lower preform is molded through the lower jig, removing the lower preform from the lower jig; Placing the fibers in the upper jig and forming the upper preform corresponding to the upper jig by placing the fibers in the upper jig and making the fibers adhere to the surface of the upper jig through a vacuum bagging process, Mold for molding a composite molded product Laminating the fibers ...

Airplane control surface composite material bidirectional reinforcing structure and forming method

本发明涉及飞机结构大尺寸次承力壁板领域，提供了一种飞机舵面复合材料双向加强结构及成型方法。所述双向加强结构包括中间层板、设置在中间层板一侧的第一加强层、及设置在另一侧的第二加强层；第一加强层、第二加强层分别由多个并排布置的第一长桁、第二长桁组成，各长桁腹板与中间层板间呈设定夹角85°～90°。所述成型方法包括：金属硬模制备、硅橡胶软模制备、碳纤维预制体成型、注胶、固化、脱模。本发明通过改变双向加强整体结构形式及其空间布置夹角等参数，可实现舵面结构传力路径的优化；成型工艺方法可适用于多种复合材料整体化结构，提高复合材料制件结构成型效率，降低制造成本。

A kind of method that ice curved bar is prepared using HSM moulding process

本发明公开了一种采用HSM成型工艺制备冰曲杆的方法。先将可塑形预型的热自膨胀高能胶放入制品芯材模具并合紧模具，80‑100℃，加热3‑30分钟，微膨胀，其中微膨胀前后的体积倍率为1.01‑1.5，充满芯材模腔，冷却脱模，再包裹纤维预浸布放入成型模具并合紧模具，120‑180℃，加热10‑60分钟,其中的可塑形预型的热自膨胀高能胶继续受热产生由内到外的膨胀力,纤维预浸布高温固化成型；冷却脱模取件。本发明的方法制备得到的冰曲杆的强度高，不良率低。

Louvered transparent sheeting made by skiving

SKIVING OF A LAMINATED BILLET HAVING OPAQUE LAYERS WHILE HEATING THE SURFACE PROVIDES A WEB WITH LONGITUDINAL LOUVER-LIKE ELEMENTS. THE SURFACE IS POLISHED.

Pressurization type pre-foaming machine

내용 없음.

Sheet rubber transfer apparatus in tire mixing process

본 고안은 타이어를 제조하는데 있어 첫 번째 공정인 타이어 정련공정에서 시트고무를 믹서(Mixer)에 투입하는 이송장치에 관한 것으로, 특히 시트고무를 이송 컨베이어 벨트를 통해 운반하여 계량 컨베이어 벨트에서 계량하여 믹서 투입시 시트고무를 슬라이스(Slice)로 재단하여 고무반응 효율성을 높인 상태로 믹서에 공급할 수 있는 타이어 정련공정에서 시트고무 이송장치에 관한 것이다. 이를 위해 팔렛트(1)에 적재된 시트고무를 이송 컨베이어 벨트(2)로 이송시킨 후 계량 컨베이어 벨트(3)에서 계량되어 운반 컨베이어 벨트(4)에 의해 믹서(5)로 투입되는 타이어 정련공정에서 시트고무 이송장치에 있어서, 상기 이송 컨베이어 벨트(2)의 끝단에는 한 쌍의 원형톱(6)이 설치되고, 상기 한 쌍의 원형톱(6)이 이송 컨베이어 벨트(2)에서 계량 컨베이어 벨트(3)로 운반되는 시트고무를 슬라이스 형태의 재료고무로 잘라 공급하여 믹서(5) 내로 슬라이스된 시트고무를 공급하도록 이루어진 구조로 되어 있다. The present invention relates to a conveying device for feeding a sheet rubber into a mixer in a tire refining process, which is the first process for manufacturing a tire, in particular, a sheet rubber is conveyed through a conveying conveyor belt and is metered on a conveying belt, The present invention relates to a sheet rubber feeding device in a tire refining process that can be fed to a mixer while cutting the sheet rubber into slices when the sheet rubber is put in a state of being increased in rubber reaction efficiency. To accomplish this, in the tire refining process in which the sheet rubber loaded on the pallet 1 is conveyed to the conveying conveyor belt 2 and then metered in the weighing conveyor belt 3 and fed into the mixer 5 by the conveying conveyor belt 4 A sheet rubber transfer apparatus characterized in that a pair of circular saws (6) are provided at the end of the conveying conveyor belt (2) and the pair of circular saws (6) are conveyed from the conveying conveyor belt (2) 3) is cut and supplied with slice-shaped material rubber to supply the sliced sheet rubber into the mixer 5. As shown in Fig.

Process for mfg. articles in expanded reticular polymeric materials and the resulting products

制造发泡网状聚合物材料制品的方法及所得到的产品的发明专利，其中，由在网化和发泡方法之前的聚合物材料的预模塑方法提供了通过预模塑部件的连结硫化生产多于一种以上颜色、密度和硬度的聚合物材料的可能性。

Fiber stacking apparatus and mehtod for manufacturing direct preform

복수 열의 섬유를 동시에 인출하면서 프리폼의 형태로 배열하도록 하는 다이렉트 프리폼 제조용 섬유 적층 장치 및 방법이 개시된다. 본 발명의 일 양상에 따른 다이렉트 프리폼 제조용 섬유 적층 장치는, 강화 섬유를 테이블(22) 상에서 적층하여 섬유 프리폼(preform)을 제조하기 위해, 상기 테이블(22)로 상기 강화 섬유를 공급하여 적층시키는 장치로서, 강화섬유 공급 로봇(30), 에지 고정 로봇(40)를 포함한다. 강화섬유 공급 로봇(30)은 표면에 열가소성 수지가 도포된 다수의 강화섬유를 정해진 길이로 공급하고, 에지 고정 로봇(40)은 상기 열가소성 수지가 융해되어 상기 강화섬유가 접착되는 동안 상기 강화섬유 공급 로봇(30)으로부터 인출된 강화섬유의 단부를 상기 테이블(22)에 눌러 고정시킨다. 특히, 상기 강화섬유 공급 로봇(30)은, 표면에 열가소성 수지가 도포된 강화섬유(F)가 감겨진 복수의 릴(33), 상기 복수의 릴(33)로부터 인출된 강화섬유(F)를 상기 테이블(22)로 이송시켜 공급하는 복수의 공급롤러(34), 상기 공급롤러(34)를 통하여 공급되는 상기 강화섬유(F)를 정해진 길이로 절단하는 커터(36), 및 상기 커터(36)에 의해 절단된 상기 강화섬유(F)의 단부를 상기 테이블(22)에 밀착시키는 압착롤러(37)를 포함한다. Disclosed is a fiber laminating apparatus and method for manufacturing a direct preform in which a plurality of rows of fibers are simultaneously drawn out and arranged in the form of a preform. A fiber laminating apparatus for manufacturing a direct preform according to an aspect of the present invention is an apparatus for supplying and reinforcing the reinforcing fibers to the table 22 in order to produce a fiber preform by laminating reinforcing fibers on the table 22. As the reinforcing fiber supply robot 30, the edge fixing robot 40 is included. The reinforcing fiber supply robot 30 supplies a plurality of reinforcing fibers coated with a thermoplastic resin on a surface of a predetermined length, and the edge fixing robot 40 supplies the reinforcing fiber while the thermoplastic resin is melted and the reinforcing fibers are bonded. An end portion of the reinforcing fiber drawn out from the robot 30 is pressed and fixed to the table 22. In particular, the reinforcing fiber supply robot 30 is a plurality of reels 33 wound around the reinforcing fibers (F) coated with a thermoplastic resin on the surface, the reinforcing fibers (F) drawn out from the plurality of reels (33) A plurality of feed rollers 34 to be transferred to the table 22 to supply, a cutter 36 for cutting the reinforcing fibers (F) supplied through the ...