Patent classifications
B29C48/465
Extruder for a system for the additive manufacture of metal parts using the composite extrusion modeling (CEM) method
It is provided an extruder for a system for the additive manufacture of freely formable metal parts with or without a supporting structure by means of an extrusion method from a composite material, which is arranged on a three-dimensionally movable kinematic mechanism, with a building platform. The extruder consists of a housing and a screw arranged in the housing. The extruder is provided with a mechanical drive for the composite material to be extruded, with an exchangeable nozzle, arranged on the housing, and the housing is connected to the mechanical drive by way of suitable means for transporting the composite material.
ROTARY EXTRUDER
The present rotary extruder includes: a rotor having a cylindrical surface centered on a rotor axis extending in a horizontal direction; and a casing having an inner peripheral surface that defines a bore, wherein: the casing defines an input port into which a resin material including a thermoplastic resin is fed, and a discharge port from which a plasticized molten resin is discharged; the cylindrical surface of the rotor and the inner peripheral surface of the casing are arranged eccentric with each other, thereby forming a gap whose cross section is crescent-shaped, extending in a rotation direction of the rotor from the input port to the discharge port between the inner peripheral surface and the cylindrical surface; and the input port is arranged at a top portion of the casing and the discharge port is arranged at a lower portion of the casing.
ROTARY EXTRUDER
The present rotary extruder includes: a rotor having a cylindrical surface centered on a rotor axis extending in a horizontal direction; and a casing having an inner peripheral surface that defines a bore, wherein: the casing defines an input port into which a resin material including a thermoplastic resin is fed, and a discharge port from which a plasticized molten resin is discharged; the cylindrical surface of the rotor and the inner peripheral surface of the casing are arranged eccentric with each other, thereby forming a gap whose cross section is crescent-shaped, extending in a rotation direction of the rotor from the input port to the discharge port between the inner peripheral surface and the cylindrical surface; and the input port is arranged at a top portion of the casing and the discharge port is arranged at a lower portion of the casing.
Solid-State Manufacturing System And Process Suitable For Extrusion, Additive Manufacturing, Coating, Repair, Welding, Forming, And Material Fabrication
A solid-state manufacturing method comprising urging a metal-based feedstock material within a sleeve of a propulsion system in a processing direction along an axis of the sleeve and against a friction die adjacent one end of the sleeve; softening at least a portion of the feedstock material within the hollow portion of the sleeve to a malleable state to form malleable feedstock material using relative rotatory friction between the friction die and the feedstock material; extruding the malleable feedstock material from an extrusion hole in response to the urging step; and depositing the malleable feedstock material from the extrusion hole onto a substrate as a paste using at least one plastering surface and continuing depositing the malleable feedstock material as deposit layers until a desired shape is completed.
EXTRUDER FOR A SYSTEM FOR THE ADDITIVE MANUFACTURE OF METAL PARTS USING THE COMPOSITE EXTRUSION MODELING (CEM) METHOD
It is provided an extruder for a system for the additive manufacture of freely formable metal parts with or without a supporting structure by means of an extrusion method from a composite material, which is arranged on a three-dimensionally movable kinematic mechanism, with a building platform. The extruder consists of a housing and a screw arranged in the housing. The extruder is provided with a mechanical drive for the composite material to be extruded, with an exchangeable nozzle, arranged on the housing, and the housing is connected to the mechanical drive by way of suitable means for transporting the composite material.
Ethylene-based polymer, method of producing ethylene-based polymer, and film
Provided are an ethylene-based polymer capable of obtaining a film in which thickness unevenness is reduced, a method of producing the ethylene-based polymer, and a film containing the ethylene-based polymer. In the ethylene-based polymer according to the present invention, the following Expressions (1) and (2) are satisfied:
0.362≤ηL.sup.1,256%/ηL.sup.10%≤0.466 (1)
0.0282≤I5.sup.2,506%/I1.sup.2,506%≤0.0328 (2).
PROCESS FOR PRODUCING TYRES
A process for producing tyres including building a green tyre having two bead structures. Each bead structure includes a bead filler. The bead filler or another rigid component of the green tyre includes a final elastomeric compound produced by the following: feeding elastomeric polymer and reinforcement filler to a first batch mixing device; mixing and dispersing the reinforcement filler in the elastomeric polymer and unloading the obtained elastomeric compound; feeding the obtained elastomeric compound, along with at least 5 phr of reinforcement resin, to a continuous mixing device of intermeshing and co-rotating twin-screw or multi-screw type or of planetary type; mixing the reinforcement resin in the elastomeric compound and unloading the obtained elastomeric compound; and feeding the obtained elastomeric compound along with the components capable of facilitating the cross-linking to a second batch mixing device and mixing to obtain the final elastomeric compound. The first and second batch mixing device have two counterrotating rotors.
Extruder unit and dryer equipped therewith
The invention relates to an extrude unit for a dryer (2) for biomass, in particular slurry, wherein the extruder unit (1) has a surface section (4) for the biomass to pass through and a plurality of apertures (3), wherein the extruder unit (1) comprises a base support (5) which is connected by means of a connecting section (6) to a driving element (7) and can be driven by means of the driving element (7) about an axis of rotation (8) and relative to the surface section (4), wherein the base support (5) comprises at least one support arm (9) having at least one scraper blade (10) which during a rotation of the base support (5) follows the shape of the face of the surface section (4) facing the scraper blade (10). According to the invention the base support (5) also comprises at least one breaker element (11) having at least one scraper blade (10) which during a rotation of the base support (5) also follows the shape of the face of the surface section (4) facing the scraper blade (10) and during the rotation of the base support (5) effects a crushing of constituents contained in the biomass which are retained by the surface section (4). The invention further relates to a dryer having at least one corresponding extruder unit.
Flow regulator for extruder assembly
An extruder assembly includes a rolling assembly. An extrusion block includes a plurality of extruding ports that receive an extrudable material from the rolling assembly. A regulating mechanism is positioned within, above, or otherwise near each extruding port of the plurality of extruding ports. The regulating mechanism is operable with respect to the rolling assembly to modify a flow of extrudable material through each respective extruding port.
Flow regulator for extruder assembly
An extruder assembly includes a rolling assembly. An extrusion block includes a plurality of extruding ports that receive an extrudable material from the rolling assembly. A regulating mechanism is positioned within, above, or otherwise near each extruding port of the plurality of extruding ports. The regulating mechanism is operable with respect to the rolling assembly to modify a flow of extrudable material through each respective extruding port.