Abstract: The invention concerns an extruder screw for a screw extruder for plasticizing and/or transporting thermoplastic materials comprising at least one extruder cylinder, a material feed means and at least one extrudate discharge at the end of the extruder cylinder, that is remote from the material feed means. The extruder screw has a screw flight, wherein the extruder screw has at least one intake region and forms at least one transport and mixing region and provided in the transport and mixing region are means for shearing the extrudate. The extruder screw according to the invention is distinguished in that provided as means for shearing the extrudate there is provided at least one shearing land which extends over more than half the length of the extruder screw, over the periphery of the extruder screw, wherein the shearing land is in the nature of a screwthread in opposite relationship to the screw flight.

Abstract: Dies and methods of extruding stretch film are provided, wherein the die includes at least an upper die lip and a lower die lip; the upper and lower die lips at least partially define a die gap; and at least one of the die lips includes a channel. Another die disclosed includes at least a die gap; and at least one jet for directing a stream of air onto the polymer as it is extruded through the die gap. Stretch films and methods for extruding stretch films are provided, wherein selected areas of the polymer extruded through the die have a gauge that exceeds the film's base gauge. The film includes at least a layer of film having a base gauge and a plurality of strength bands running longitudinally along a length of the film; and have a gauge that is greater than the base gauge.

Abstract: The present invention describe a process and an installation for the production of stiff recyclable sandwich-type polymeric panels, preferably polypropylene-based panels, and the panel obtained, comprising three lines, in one of which a polymeric polypropylene-based foamed core is produced by extrusion (line A); the structural skins are produced in a second line (line B), which skins are formed by a polypropylene-based lamina reinforced with wood fiber, on which lamina there is applied an also polypropylene-based surface coating layer reinforced with glass fibers; in the third line the structural skins produced in line B are adhered by heat and pressure to the foamed core produced in line A. The sandwich panel produced has a thickness between 7 and 40 mm, an overall density of 400-700 kg/m3 and an elastic modulus of 5-10 GPa.

Abstract: A die piece for extrusion molded noodles is a die piece in which a contact angle of a water droplet on a die piece surface is 61 to 73 degrees and a water absorption of the die piece is 0.01 to 0.15% by weight after the die piece is immersed in water for 24 hours. The use of the die piece for extrusion molded noodles makes it possible to produce pasta, spaghetti, or any other extrusion molded noodles with no increase or decrease in its surface roughness (degree of surface roughness) over time and also makes it possible to stably produce, over a prolonged period of time, extrusion molded noodles having proper surface roughness.

Abstract: A hopper valve for transferring particles from a supply container to a hopper, the hopper valve comprising a valve body coupled to the supply container, a fill tube moveably coupled to the valve body, and a foot member moveably coupled to the fill tube and configured to engage the hopper.

Abstract: Disclosed is an extruded noodle having a hole extending therethrough in a longitudinal direction, wherein: the hole closes or contracts during boiling or rehydration in hot water; and the hole in a cross section of the noodle is configured such that a plurality of grooves are formed rotationally symmetrically about a center of the cross section, extending in an outer radial direction from the center of the cross section of the noodle.

Abstract: A stabilizer assembly for use in an extruder having a screw rotating in a barrel is provided. The assembly comprises a plurality of rods that are secured to an interior of the barrel at one end. Each of the rods has an end that extends radially inwardly toward the center of the barrel. On the discharge end of the screw, there is a bearing member that is in contact with each of the opposite ends of the rods. The rods support the discharge end of the screw and stabilize its rotation in the barrel.

Abstract: In one embodiment of the invention a mold system and method of use are provided such that aqueous starch-based compositions and baked goods articles that use the conversion of water to steam may be produced using an extruder that allows the venting of such gases and/or steam. The extruder is vented in such a way as to allow steam to escape, but retain the composition until the exit end.

Abstract: A fluid extrusion space structure comprising: an extrusion material container and an extrusion module that operate in a microgravity environment, wherein said extrusion module is in fluid communication with said extrusion material container's interior so that extrusion material can flow from inside said extrusion container out through said extrusion module.

Abstract: Provided is an electrospinning apparatus for producing nanofibers, including: a spinning solution supply unit (10); a spinning unit (30) that includes spinning nozzles (32) and a nozzle block (31) in which the spinning nozzles (32) are equidistantly arranged and supported; a nanofiber-collecting unit (40) which collects nanofibers spun from the spinning unit (30); a power supply (50) which forms an electric field in a spinning zone (Z); a process gas supply unit (20) which generates and supplies process gas to control the temperature and humidity of the spinning zone (Z) to a range appropriate for electrospinning conditions for nanofibers; and a process gas laminar flow distribution device (100) which fractionates the process gas supplied from the process gas supply unit (20), into laminar flows within the process gas laminar flow distribution device (100), and distributes the process gas from an upper portion of the spinning unit (30) to the spinning zone (Z).

Abstract: An electrospinning equipment is provided. The electrospinning equipment includes a power supply, a collector and a material supply electrically connected to the power supply facing the collector and having a spinneret and a guide unit coupled to the spinneret and bent toward the collector, and the spinneret is configured at a central portion of the guide unit.

Abstract: A film blowing head (1) for the production of film tubing from a single or multi-layer film, which (1) comprises at least one extrusion gap (4) to form a film layer, which (4) is embodied between to boundary walls (5, 6), with at least one melt pipeline (22) mouthing into the extrusion gap (4), which converts inside the extrusion gap (4) into a first melt channel (4), which is formed in at least one section (11, 12, 13, 14) of the progression of at least one first melt channel (10) by recesses (3, 7) in the two boundary walls (5, 6) of the extrusion gap (4), and which distributes the melt in the extrusion gap (4), while it (10) tapers in its progression in the direction of transportation of the melt (h), and finally in its (10) end section (14) entirely converts into the extrusion gap (4). Here, it is considered novel and inventive that at least one first melt channel (10) is formed at one of its sections (11, 12, 13, 14) only by recesses (3, 7) in one of its two boundary walls (5, 6).

Abstract: The invention relates to a device for extruding plastic profiles, preferably plastic tubes, to which plasticized bulk plastic can be fed, and comprising a plurality of ring channels (5) combined by means of a flow conjunction (4) to a common melt channel (2). According to the invention, the tool (1) is divided into three functional areas, wherein the three functional areas are a distribution area (7), a cooling area (8), and a forming area (9), wherein cooling channels (3) are disposed about the ring channels (5) in the cooling area (8).

Abstract: Multiple extrusion drive motors are nested in an overlapping configuration that permits re-use of the drive axes to support drive gears and complementary guide bearings, resulting in a compact arrangement of independently controllable extruders for multiple build materials.

Abstract: This invention provides methods and devices for manufacturing moldable materials including various types of natural and synthetic clays, edible materials such as cookie dough, and modeling compound by forming a moldable billet through various techniques, and reducing the cross section of said moldable billet such that features in the moldable billet appear in a similar arrangement in the resulting extruded product.

Abstract: The present invention includes embodiments that generally relate to methods and devices for control of electrospinning processes. Some embodiments include constant current electrospinning jets. Other embodiments include pressure control using a system of valves in fluid communication with the electrospinning fluid. Still other embodiments include control of one or more physical parameters.

Abstract: A dough extruder for extruding a dough material includes an extrusion section with a piston that is telescopically movable within a hollow piston support toward a barrier disposed at an end of the piston support. The barrier includes apertures that facilitate extrusion of dough material by the piston through the bather. The dough extruder further includes a handle section including a handle and a plurality of gear members coupled to the handle and to the piston, where the handle is movable with respect to the piston support, and a base to support the extrusion section and the handle section. The gear members couple with the handle and piston to facilitate movement of the piston away from the base and toward the bather when the handle is moved in a direction toward the base.

Abstract: When extrusion molding is conducted continuously for a long period of time, in order to prevent a die drool from being generated at an outlet of an extruder, to a shell 2 in which an outlet 3, through which a melt-kneaded resin material is extruded by an extruder, is formed, a plate-like shell tip 6 in which an opening 7 which is arranged such that it surrounds the outlet 3 along the circumference thereof is detachably attached, and non-sticky coating is applied at least along the outer surface of the core tip.

Abstract: The invention relates to a dispensing device (11) for containers (33) containing a compound, comprising a compartment (12) for the container, with a piston rod (13) that can be moved relative to the compartment (12), with an extruding device (16) that comprises a drive wheel (21) for advancing the piston rod (13), a motor (22) for driving the drive wheel (21) as well as a planetary gear (23) that is interposed between the drive wheel (21) and the motor (22) and that has a gear rotational axis (24) and a ring gear (25). The ring gear (25) is provided with multiple recesses that are located along its circumference at intervals from each other. Moreover, the dispensing device (11) has an actuating switch (31) for actuating the motor (22) and a blocking element (36) that can be moved from a blocking position that blocks the ring gear (25) into a releasing position that releases this ring gear (25).

Abstract: The invention relates to a powder metallurgically manufactured steel with a chemical composition containing, in % by weight: 0.01-2 C, 0.6-10 N, 0.01-3.0 Si, 0.01-10.0 Mn, 16-30 Cr, 0.01-5 Ni, 0.01-5.0 (Mo+W/2), 0.01-9 Co, max. 0.5 S and 0.5-14 (V+Nb/2), where the contents of N on the one hand and of (V+Nb/2) on the other hand are balanced in relation to each other such that the contents of these elements are within an area that is defined by the coordinates A?, B?, G, H, A?, where the coordinates of [N, (V+Nb/2)] are: A?: [0.6,0.5]; B?: [1.6,0.5]; G: [9.8,14.0]; H: [2.6,14.0], and max. 7 of (Ti+Zr+Al), balance essentially only iron and impurities at normal amounts. The steel may be used for tools for injection molding, compression molding and extrusion of components of plastics, and cold working.

Abstract: An extrusion die device includes a die holder including a supporting hole and a die assembly accommodated in the supporting hole, wherein the die assembly includes a male die including a core member having a projected portion, a core case holding the core member, a female die including a body which includes an engagement groove engaging the core case of the male die, and which engages the supporting hole, and a nesting member formed in an annular shape and accommodated in the body at a portion close to a raw material supply part, and a cap member formed in a plate shape, disposed at a position closer to the raw material supply part than from the male die, covering a portion of the core member, and connected to the core case, and wherein a space between the nesting member and the core member is defined as a molding hole allowing the extrusion raw material to pass therethrough.

Abstract: A spin pack assembly for use in melt spinning elastic fibers. The spin pack assembly includes a circular breaker plate having a center aperture and several circular patterns of apertures with each circular pattern having a plurality of apertures. Each circular pattern is located concentrically about an axis of the center aperture. The apertures in the outer circular patterns have a greater diameter than the apertures in the inner circular patterns. The spin pack assembly also has a spinneret plate where the exit aperture of the spinneret plate is recessed in the body of the spin pack assembly.

Abstract: An aerosol container (1), comprising:—a reservoir (2) containing a propellant and a foodproduct;—operable discharge means (3) to discharge the foodproduct;—a dispensing head (10) defining a foodproduct receiving space (11) to receive the foodproduct from the discharge means (3), a distal part (15) of the head (10) having foodproduct shaping projections (12), wherein the foodproduct receiving space comprises an upstream foodproduct receiving space (11A, 11B) that widens, viewed in a foodproduct discharge direction, wherein a maximum diameter (D1) of the foodproduct receiving space of the dispensing head is larger than about 2 cm.

Abstract: An extruder that can be cleaned more easily. An extruder in which a material is supplied from a supply opening (21) of a circular tube section (20), the material is sent to a conveyance passage while the material on the surface of a feed roller (4) is scraped by a scraper (5) through rotation of a screw (3) and the feed roller (4). The extruder has a feed roller support portion (23) rotatably supporting the feed roller (4) and installed so that the feed roller (4) can open and close the circular tube section (20) in such a way that the feed roller (4) separates from the screw (3) to open the inner space of the circular tube section (20).

Abstract: A kneading extruder comprises a barrel having an extrusion port through which kneaded material including first and second liquid raw material is extruded, a screw shaft placed in the barrel, the screw shaft kneading the first and second raw material to produce the kneaded material in melted state, a screw driving device continuously rotating the screw shaft at a constant speed, a die communicating with the extrusion port of the barrel, the die having an extrusion port through which the kneaded material in pressurized state is extruded, and an ejection device ejecting a portion of the kneaded material between the extrusion port of the barrel and the extrusion port of the die, the ejection device including ejection quantity regulating means for regulating ejection quantity of the kneaded material so that pressure of the kneaded material at the extrusion port of the barrel is kept constant.

Abstract: A consumable assembly comprising a container portion configured to retain a supply of filament, a guide tube connected to the container portion, and a pump portion connected to the guide tube.

Abstract: The present invention is directed to a device for the production of a cellular wood plastic composite material comprised of an orifice that conducts the composite material from the adapter of the extruder to the transition die plate in such a manner that a uniform flow of material reaches the transition die plate; a transition die plate that further directs the flow of material to a flow restriction die plate in a manner ensuring that equal amounts of material are delivered to all areas of the flow restriction die plate; a flow restriction die plate that provides sufficient resistance to material flow to increase the melt pressure of the portion of the material that is upstream in relation to the flow restriction die plate and controls the temperature increase caused by this restriction by dividing the flow into numerous suitably sized and shaped streams; a compression die plate that fuses the separate streams issuing from the flow restriction die plate into a single stream of material and maintains the melt

Abstract: An extrusion die for extruding cooked dough includes at least one slot having an inlet, an outlet and a land. The land has a length and a depth, with the depth extending between the inlet and the outlet and the length extending between a first side and a second side of the land. The depth of the land varies along at least a portion of the length. A process for forming cereal flakes using the extrusion die includes the steps of extruding and cutting.

Abstract: The invention relates to an apparatus adapted to deliver a fat based confectionery product on demand, in a foodservice or household environment, which exhibits play value and enhanced decorative attributes. The apparatus of the invention comprises barrel means for receiving a predetermined amount of fat based confectionery material, a pressure engaging means for engaging under pressure the fat based confectionery material contained in the barrel means. The apparatus further comprises die means arranged for producing at least one elongated strand of the fat based confectionery product of a surface-area-to-mass ratio that is higher than 8.0 cm2 per gram unit, and control means for actuating the pressure engaging means with the barrel means upon the push of a button and for extruding the at least one strand of the fat based confectionery.

Abstract: A method for producing a molded product consisting of a resin polymerized by a melt polycondensation reaction, comprising continuous feeding of a prepolymer in molten state from a prepolymer feeding port to a polymerization reactor, discharging from holes of a porous plate, followed by polymerization while dropping along a supporting substrate under reduced pressure, and molding by transferring to at least one molding machine in molten state without solidification, wherein transfer pressure to said molding machine is controlled so as to maintain at an arbitrary pressure from 0.1 to 100 MPa (absolute pressure).

Abstract: The present invention provides a process for producing a colored structured protein product with protein fibers that are substantially aligned and the resultant product. Specifically, the plant protein is combined with a colorant and extruded, forming a colored structured protein product with protein fibers that are substantially aligned and the resultant product.

Abstract: A method for generating interfacial surfaces within a first composite stream having a generally planar layer interface lies generally in an x-z plane of an x-y-z coordinate system. The method includes dividing the first composite stream into a plurality of branch streams along the x-axis such that the pair of discrete overlapping layers and the generally planar layer interface are distributed among at least two branch streams. Within each individual branch stream of the at least two branch streams, the width dimension of the branch stream is expanded along the x-axis and the thickness dimension of the branch stream is simultaneously contracted along the y-axis. The branch streams are recombined in an overlapping relationship, after each of the at least two branch streams is simultaneously expanded and contracted, to form a second composite stream having a greater number of discrete overlapping layers of polymeric material than the first composite stream.

Abstract: This invention provides methods and devices for manufacturing moldable materials including various types of natural and synthetic clays, edible materials such as cookie dough, and modeling compound by forming a moldable billet through various techniques, and reducing the cross section of said moldable billet such that features in the moldable billet appear in a similar arrangement in the resulting extruded product.

Abstract: A micro-extrusion printhead assembly utilized in a micro-extrusion system to form parallel extruded gridlines of material on a substrate includes a nozzle having a tapered (e.g., triangular or trapezoidal) cross-section arranged such that a lower surface of each gridline is substantially wider than its upper edge, and such that side surfaces of the extruded gridlines reflect incident light beams into exposed surface areas of the substrate, thereby minimizing the effective shadowed surface area under the gridline. In one embodiment, the fluidic channels of each nozzle are fabricated by cutting or etching progressively wider channels into a series of rigid layers, and then stacking the rigid layers to form a layered nozzle structure. In another embodiment, a single layer is processed to include a tapered cross-section having the desired triangular or trapezoidal cross-section.

Abstract: An extrusion device is described herein, including an inventive die and mandrel that enable the production, using a conventional ram extruder, of strong coherent extremely thin-walled tubes having a wall thickness in the range of about 0.020 mm and about 0.080 mm.

Abstract: A system and method for forming an article from thermoplastic material and fiber. The method includes heating thermoplastic material to form a molten thermoplastic material for blending with the fiber. The molten thermoplastic material is blended with the fibers to form a molten composite material having a concentration of fiber by weight. The molten composite material may then be extruded through dynamic dies to deliver discrete controlled material that is gravitated onto a lower portion of a mold. The lower portion of the mold may be moved in space and time while receiving the flow of composite material to deposit a predetermined quantity of molten composite material thereon conforming to mold cavities of the lower and an upper portion of the mold. The upper portion of the mold may be pressed against the predetermined quantity of molten composite material and closing on the lower portion of the mold to form the article.

Abstract: An extruder screw segment has opposed end faces disposed at a non-orthogonal angle with respect to a rotation axis of the body.

Abstract: Example embodiments relate to a continuous metal extruder that includes a rotatable member having an extrusion screw portion for transporting metal to be extruded in an axial direction of the rotatable member, a fixed part, a spring element for biasing the rotatable member and the fixed part in relation to each other, and a thrust bearing arranged between the rotatable member and the fixed part.

Abstract: The present invention relates to an injection nozzle for electrospinning including a nozzle body and an air jacket member detachably coupled with each other, and needle members coupled to the bottom surface of the node body via injection holes of the air jacket member. The electrospinning device basically performs air electrospinning for injecting a fiber solution together with air while discharging the fiber solution through the needle members, and the needle members are exposed at the ends thereof by a length long enough to carry out error-free pure electrospinning without air injection if the air jacket member is separated. Therefore, pure electrospinning or air electrospinning can be selectively carried out.

Abstract: An extrusion-molding machine according to the present invention comprises: a screw having a blade portion for extruding a molding material, the screw disposed in a tightly-closed space; and a die for molding an extruded molding material, wherein the space is maintained in a reduced-pressure atmosphere, and a high-hardness coat layer is formed at least on the blade portion.

Abstract: An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a cavity for receiving a coproduct of a wet biomass process and a binder and being operable to premix the coproduct and binder to produce a substantially homogeneous DDGS mixture; a high shear mixer having a receptacle for receiving the DDGS mixture and being operable to shear mix the mixture and produce very small DDGS particles; and, an agglomerator having an interior chamber sized and configured to receive and transform the DDGS particles into substantially spherical DDGS pellets.

Abstract: Techniques for preparing PNCs are provided. In one embodiment, a polymer extruding device may include a barrel configured to accommodate a composite material, a shaft rotatably disposed in the barrel, and a motor coupled to the shaft and configured to rotate the shaft, thereby moving the composite material. The polymer extruding device may further include a die including one or more injectors configured to inject nano particles into the die to cause shear stress to be exerted to the composite material, thereby forming a layer of the nano particles on a surface of the composite material.

Abstract: The invention relates to a device (1) for extruding thermoplastic material, having an extruder housing (22) in which an extruder screw (22) driven by a drive device (23) is supported rotatably about the axis thereof, said housing comprising an intake opening (24) to which a plastic material feeder (3) is connected, said feeder comprising at least one air inlet opening (36), wherein the extruder housing (22) comprises at least one vapor outlet opening (41) upstream of the intake opening (24) and an air/vapor path (28) is defined from the intake opening (24) to the vapor outlet opening (41).

Abstract: Composite material and plunger-cast pipe manufacturing method and system wherein the composite material includes waste, chemically unmodified PET material, one or more waste filler materials (e.g. rock crusher fines, lime sludge or waste coal combustion by-products), and fiber reinforcement (e.g. glass, metal, ceramic, carbon, organic, and polymer fibers) and wherein the PET material is melted and mixed in a container to disperse filler material and fiber reinforcement in the PET material. The resulting mixture can be formed into a tubular pipe shape using the plunger-cast manufacturing method and system wherein a plunger piston and inner collapsible mold are pushed into the melted composite material contained in an outer mold. When cooled and solidified in the mold, a composite material having a matrix comprising PET with filler material and fiber reinforcement distributed in the matrix is formed in the shape of a tubular body.

Abstract: An extrusion device is described herein, including an inventive die and mandrel that enable the production, using a conventional ram extruder, of strong coherent extremely thin-walled tubes having a wall thickness in the range of about 0.020 mm and about 0.080 mm.

Abstract: In one embodiment of the invention a mold system and method of use are provided such that aqueous starch-based compositions and baked goods articles that use the conversion of water to steam may be produced using an extruder that allows the venting of such gases and/or steam. The extruder is vented in such a way as to allow steam to escape, but retain the composition until the exit end.

Abstract: Spiral distributors for plastic melt are often used for manufacturing foils in blown film extrusion lines. They overlie several partial flows of melt on their way to the ring-shaped outlet nozzle. The spiral distributors are designed either as cylindrical or truncated cone-shaped axial spiral distributors or as plate-shaped radial spiral distributors. In an axial spiral distributor several spiral channels are disposed as a multiple screw. In the case of a radial spiral distributor, several spiral channels are disposed as multiple spirals. The invention proposes to provide the spiral channels with shortening sections in their backward area. As compared to a geometrical rule for a discontinuation of the spiral channels which is valid in a prior section of the spiral channels, this leads to a faster discontinuation of the spiral channels. The invention has observed that the design of the backward area of the spiral channels does not affect the good overlaying effect of the front part of the spiral channels.

Abstract: The invention relates to a powder metallurgically manufactured steel with a chemical composition containing, in % by weight: 0.01-2 C, 0.6-10 N, 0.01-3.0 Si, 0.01-10.0 Mn, 16-30 Cr, 0.01-5 Ni, 0.01-5.0 (Mo+W/2), 0.01-9 Co, max. 0.5 S and 0.5-14 (V+Nb/2), where the contents of N on the one hand and of (V+Nb/2) on the other hand are balanced in relation to each other such that the contents of these elements are within an area that is defined by the coordinates A?, 13% G, H, A?, where the coordinates of [N, (V+Nb/2)] are: A?: [0.6,0.5]; B?: [1.6,0.5]; G: [9.8,14.0]; H: [2.6,14.0], and max. 7 of (Ti+Zr+Al), balance essentially only iron and impurities at normal amounts. The steel may be used for tools for injection moulding, compression moulding and extrusion of components of plastics, and cold working.

Abstract: The invention relates to an improved die for the extrusion of melt strands of viscoelastic masses, and in particular to polymers and mixtures of polymers with other substances (such as solids, liquids or other polymers), where the use thereof avoids the formation of deposits in the region of the die.

Abstract: Methods and apparatuses for cutting dough are described. One described dough cutting apparatus comprises a barrel having two ends, a removable die comprising a shaped opening, the removable die adapted to be coupled to a first end of the barrel, and a knife adapted to cut dough extruded from the shaped opening. In one illustrative method for making doughnuts, dough is extruded and cut using such a dough cutting apparatus and the dough is then cooked.