Disclosed are various embodiments of an extruded expandable barrier, and various processes and systems for manufacturing the same. Using various extrusion processes to form an extruded expandable barrier allows for a reduction in tooling costs while also allowing more flexible barrier designs. Such designs can be specifically tailored for a particular cavity or cavities to ensure that the barrier fills the cavity after expansion. In addition, design changes can occur with little to no tooling changes.

Provided are a flexible tube for an endoscope, the flexible tube having a flexible tube base containing metal as a constituent material, a resin cover layer that covers an outer periphery of the flexible tube base, and a primer layer that includes a specific silane coupling agent and that is disposed between the flexible tube base and the resin cover layer, in which the resin cover layer includes at least one compound selected from the group consisting of polyamides, polyesters, polyurethanes, and polyolefins at least on a side of the resin cover layer in contact with the primer layer, an endoscopic medical device including the flexible tube for an endoscope, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.

A silicone extrusion plant has a silicone extruder and a silicone feed device configured to load the silicone extruder. The silicone feed device has a feed hopper. The feed hopper opens into a feed opening at the bottom thereof. The feed opening is in a fluidic connection, via a feed duct, with an inlet zone of the silicone extruder. A feed screw arranged in the feed hopper in such a way as to be drivable for rotation protrudes into the feed opening at least partly. The feed screw has a cone portion and a cylinder portion. According to another aspect, the silicone extrusion plant has at least one feed pressure sensor configured to measure an actual feed pressure of silicone material to be extruded. A control unit is in a signal communication with the feed pressure sensor and a feed drive device in order to drive the silicone feed device.

A nozzle arrangement for a granulator has a nozzle body with an inlet side as well as an outlet side, a nozzle plate with nozzle holes arranged on the outlet side for forming melt strands, and flow channels formed in the nozzle body and connected to the inlet side and the outlet side in a fluid-conducting manner for supplying a melt flow to a nozzle plate. An annular connection channel connects a plurality of flow channels in a fluid-conducting manner. A method for separating a melt flow into melt strands is also described.

A scraping device for a rotary press comprising at least one scraping element for scraping pellets located on a die plate of the rotary press to an outlet, wherein the at least one scraping element has at least one identification and/or position unit having identification and/or position data relating to the at least one scraping element, and wherein the scraping device further comprises a read and/or write unit which is designed to communicate with the at least one identification and/or position unit in order to read the identification and/or position data from the at least one identification and/or position unit. The invention also relates to a rotary press and a corresponding method.

Extrusion heads, methods of forming an extrusion head, and methods of forming an object are disclosed herein. An extrusion head may include a plurality of nozzles. Each nozzle may include a first opening configured to receive a solid material therein, a second opening configured to eject a molten material therefrom, a bore extending through the nozzle and connecting the first opening and the second opening, and an actuator positioned adjacent to the first opening and/or the second opening. The solid material may be heated to form the molten material. The additive manufacturing apparatus may further include a control device configured to signal each actuator to adjust an amount of the solid material received in the first opening and an amount of the molten material ejected from the second opening.

A nozzle arrangement for a granulator has a nozzle body with an inlet side as well as an outlet side, a nozzle plate with nozzle holes arranged on the outlet side for forming melt strands, and flow channels formed in the nozzle body and connected to the inlet side and the outlet side in a fluid-conducting manner for supplying a melt flow to a nozzle plate. An annular connection channel connects a plurality of flow channels in a fluid-conducting manner. A method for separating a melt flow into melt strands is also described.

A device and method manufacture an object for a user by fused deposition. A screw conveyor conveys a plurality of solid thermoplastic pellets from a hopper to a barrel. A heating element, coupled to the barrel, melts the solid thermoplastic pellets within the barrel, thereby producing a thermoplastic liquid. The thermoplastic liquid is extruded through a nozzle that caps one end of the barrel, the extruded thermoplastic liquid thereafter solidifying into the object. A computerized control system controls both a flow rate of the thermoplastic liquid, by adjusting rotation of a motor coupled to the screw conveyor, and a position of the nozzle above the build surface according to a three-dimensional shape of the object. The device and method are particularly suited for mass production of customized shoes and other objects, whereby thermoplastic material can be easily combined with customized colorants and blowing agents.

A silicon extrusion plant has a silicon extruder and a silicon feed device configured to load the silicon extruder. The silicon feed device has a feed hopper. The feed hopper opens into a feed opening arranged at the bottom thereof. The feed opening is in a fluidic connection, via a feed duct, with an inlet zone of the silicon extruder. A feed screw arranged in the feed hopper in such a way as to be drivable for rotation protrudes into the feed opening at least partly. The feed screw has a cone portion and a cylinder portion. According to another aspect, the silicon extrusion plant has at least one feed pressure sensor configured to measure an actual feed pressure of silicon material to be extruded. The pressure sensor is arranged in a transition region between the silicon feed device and the silicon extruder. A control unit is in a signal communication with the feed pressure sensor and a feed drive device in order to drive the silicon feed device. The control unit is used to define a nominal feed pressure and to transmit an actuating signal to the feed drive device depending on a difference detected between the nominal feed pressure and the actual feed pressure. As a result, a silicon extruder is obtained that is usable for the mass production of silicon extrudate.

The present disclosure relates to a polyolefin-natural fiber composite composition for extrusion molding, and more particularly to a polyolefin-natural fiber composite composition, which comprises polyolefin resin, natural fiber, thermoplastic elastic rubber and an anhydrous maleic acid-grafted polypropylene-based compatibilizer, and is useful as a material for an extrusion molded article by obtaining an effect of improving dimensional stability, mechanical properties and surface quality through adjusting three-dimensional structure and particle size of the polypropylene-based compatibilizer and binding rate of the maleic acid.