Disclosed is an extruder and a method for extruding cord reinforced tire components, wherein the extruder includes an extruder head with a die and a cord guide, wherein the die is provided with a cross sectional profile that defines a first cross section of the extrusion material in the die, wherein the cross sectional profile has a profile height, wherein the cord guide is arranged for guiding the cords into the die at a cord entry height, wherein the extruder head is provided with first heating elements, wherein the extruder comprises a control unit that is operationally connected to the first heating elements for generating an adjustable height temperature gradient in the extrusion material across the profile height to control swelling of the extrusion material relative to the cord entry height from the first cross section to a second cross section after the extrusion material leaves the die.

A nozzle assembly for a printer head of a 3D printer includes at least two conduit portions, with each conduit portion including an interfacing surface having a recessed channel that is non-linear. The recessed channels cooperate with one another to define a serpentine path, in response to the interfacing surfaces of the associated conduit portions being engaged to one another. The serpentine path extends from a feed opening to a discharge opening for moving a filament therethrough. The nozzle assembly further includes a heating element connected to the conduit portions for transferring heat to the filament disposed in the serpentine path to fully melt the filament without caramelizing or burning the filament.

High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.

A super anti-slip composite carpet with a three-dimensional TPE elastic structure, which is formed by compounding a fabric layer (1) and a TPE layer (2), wherein TPE is composed of 80-90% of styrene oxide-butadiene block copolymer and 10-20% of polypropylene, and the TPE layer (2) has a thickness of 1-2 mm. The compounding process thereof includes: step 1, preheating a transparent TPE to 80° C., and adding to a material barrel of a casting machine, stirring the TPE by a screw, and heating to a heating temperature of 140° C.-200° C. in 6-9 sections, to obtain a paste-like TPE; step 2, extruding the paste-like TPE through a metal joining pipe into a die head; step 3, making the paste-like TPE flow out through the die head in a planar cascade shape, and at the same time, passing the paste-like TPE flowed out from the die head together with a back part of a carpet fabric through a gap between an embossed roller and a rubber roller, so as to compound with the bottom surface of the fabric layer. The carpet has a good anti-slip effect and no edge warping, and is light resistant, aging resistant, non-toxic and tasteless, safe and reliable.

An apparatus for additively manufacturing an article comprises a heat block, a nozzle configured to receive a feed material in operable communication with the heat block, and a radiator configured to transfer heat from the heat block to an external environment by thermal radiation. Related tools for additively manufacturing a material in a vacuum, and related methods are also disclosed.

An extrusion molding die includes an extrusion outlet, a plastic flow channel, and a temperature adjusting channel. The extrusion outlet is configured to extrude a plastic composition including at least one kind of plastic. The plastic flow channel is configured to allow the supplied plastic composition to flow toward the extrusion outlet. The temperature adjusting channel is configured to allow a temperature adjusting medium to flow. The temperature adjusting channel includes three or more temperature adjusting channels arranged around the plastic flow channel. Each of the temperature adjusting channels is arranged at a position in ±10% of (360°/N) in a rotation direction about an extrusion center axis relative to an adjacent temperature adjusting channel, where a number of the temperature adjusting channels is N.

A ram extrusion apparatus including a die having several thermal zones, a hopper for introducing a granular polymer resin to the die, and a ram for moving the granular polymer resin through the thermal zones of the die and out from an outlet end thereof at a temperature above the crystalline melt temperature of the polymer resin. The hopper may be designed to deliver the polymer resin into a resin inlet of the die in a plurality of specifically metered amounts which may vary across a width of the resin inlet end of the die. The apparatus may further include one or more finishing tables positioned after the outlet end of the die for receiving and moving the extruded resin away from the outlet end of the die so that there is no backpressure on the extruded resin, and which provide compression force and even cooling to the extruded resin.

The present invention relates to an extrusion die and a method for extruding a sheet using the same, and according to one aspect of the present invention, there is provided an extrusion die comprising a storage part configured to hold a raw material, the storage part defining a first width, a pressure part configured to move the raw material through the storage part, a first die defining a second width less than the first width, such that a flow width of the raw material becomes narrower, a second die in fluid communication with the first die, the second die defining a width that increases from the second width to a third width, such that the flow width of the raw material passing through the first die becomes wider and a flow thickness becomes smaller, and a heating part configured to heat the raw material passing through the second die.

A production device for melt-blown non-woven fabric, with which a high molecular weight polymer can be reduced in molecular weight by applying a shear force to the high molecular weight polymer without adding an additive such as a peroxide that promotes thermal decomposition reaction, and a low molecular weight polymer can be efficiently produced. The low molecular weight polymer and the melt-blown non-woven fabric are produced using a continuous high shearing device that applies a shear force to the high molecular weight polymer serving as a raw material by rotation of a screw body 37 to reduce the molecular weight of the high molecular weight polymer so as to obtain a low molecular weight polymer, and cools the low molecular weight polymer by passing the low molecular weight polymer through a passage 88 arranged in the axial direction inside the screw body 37.

Silicone-containing light fixture optics. A method for manufacturing an optical component may include mixing two precursors of silicone, opening a first gate of an optic forming device, moving the silicone mixture from the extrusion machine into the optic forming device, cooling the silicone mixture as it enters the optic forming device, filling a mold within the optic forming device with the silicone mixture, closing the first gate, and heating the silicone mixture in the mold to at least partially cure the silicone. Alternatively, a method for manufacturing an optical component may include depositing a layer of heat cured silicone optical material to an optical structure, arranging one or more at least partially cured silicone optics on the layer of heat cured silicone optical material, and heating the heat cured silicone optical material to permanently adhere the one or more at least partially cured silicone optics to the optical structure.