摘要:
The present invention provides an extruder assembly for a three-dimensional printer comprising one nozzle (1), attached to a heating block (2), a temperature control element for controlling the temperature of the heating block, a mixer (5), a heat sink (4) arranged between the heating block (2) and the mixer (5), and a plurality of feeding means for feeding a plurality of printing material filaments from filament storage means to the mixer (5) and from retracting the printing material filaments from the mixer (5), arranged to feed the filaments into the mixer (5). The extruder assembly is suitable for 3D printing using a plurality of printing materials.
摘要:
Die Erfindung betrifft einen Blaskopf, ein Verfahren zum Herstellen einer Blasfolie sowie eine Blasfolienanlage. Konkret betrifft die Erfindung den Einsatz von Plattenwendelverteilern (2) in Blasfolienanlagen. Es wird vorgeschlagen, die Schmelzeströme in einem Plattenwendelverteiler (2) zunächst zu bündeln (13, 17, 18) und dann gebündelt zu einer gemeinsamen Koextrusionsströmung (8) weiterzuleiten.
摘要:
An apparatus and method of manufacturing a porous ceramic segmented honeycomb body comprising axial channels extending from a first end face to a second end face. A plurality of porous ceramic honeycomb segments is moved axially past respective apertures of an adhesive applying device. Adhesive is applied through openings in the adhesive applying device onto peripheral axial surfaces of each porous ceramic honeycomb segment. The plurality of porous ceramic honeycomb segments enters a wide opening of a tapered chamber and exits a narrow opening of the tapered chamber; a tapered wall from the wide opening to the narrow opening presses the plurality of porous ceramic honeycomb segments together forming the porous ceramic segmented honeycomb body. The adhesive on the peripheral axial surfaces between respective porous ceramic honeycomb segments is distributed by the pressing.
摘要:
An annular die has a mandrel having a spiral groove formed in a surface of the mandrel that distributes a flow of liquid across the mandrel surface and directs the flow of liquid in a flow direction across the spiral groove and across the mandrel surface. At least a portion of the spiral groove has a cross-section configuration where an interior surface of the spiral groove portion is oriented toward the flow direction as the interior surface extends to and intersects with the mandrel surface. The annular die has particular, but not limited, application as a blown film die.
摘要:
Nettings and arrays comprising polymeric strands, including dies (1030) and methods to make the same. Nettings and arrays of polymeric strands (1070a,1070b) described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern-coated adhesives.
摘要:
Three-dimensional polymeric strand netting, wherein a plurality of the polymeric strands are periodically joined together in a regular pattern at bond regions throughout the array, wherein a majority of the polymeric strands are periodically bonded to at least two (three, four, five, six, or more) adjacent polymeric strands, and wherein no polymeric strands are continuously bonded to a polymeric strand. Three-dimensional polymeric strand netting described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern coated adhesives.
摘要:
Nettings and arrays comprising polymeric strands, including dies and methods to make the same. Nettings and arrays of polymeric strands described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern-coated adhesives.
摘要:
The invention relates to a method and an apparatus for manufacturing an extruded plastic product, the apparatus comprising at least one rotor (1) and at least one stator (2, 3) with a feed gap (4) provided between them, a groove (7) being situated on the other side of the feed gap (4), the groove pressing the material to be extruded out of the apparatus when the rotor (1) is rotated. The cross section of the groove (7) remains substantially unchanged. At the opposite side of the feed gap (4) there is positioned a countergroove (8) in such a way that a processing cavity consisting of the grooves (7), the countergrooves (8) and the clearance between them decreases at least partially continuously along the axis of the extruder. The deformation energy of the material can thus be kept as small as possible due to the unchanging cross section of the groove (7), and the material stays in the groove (7) due to the placement of the flights (7a, 8a). The material is made to move rotatably, which enables the manufacture of a laminar plastic product (11). Further, materials that would otherwise be difficult to process can also be extruded effectively.
摘要:
L'invention concerne une tête de coextrusion (50) d'un profilé caoutchouteux complexe (20) pour la fabrication d'un pneumatique. Cette tête permet de coextruder une sous-couche et une bande de roulement avec des inserts. A cet effet, la tête (50) comprend d'amont en aval: a)un premier canal d'extrusion (60) séparé en différents sous-canaux (60-1,60-2,60-3,60-4), b)une première lame de profilage (62) discontinue, c)un deuxième canal d'extrusion (64) séparé en différents sous-canaux (64-1,64-2,64-3,64- 4), d)une deuxième lame de profilage (66) discontinue et intégrant au moins un troisième canal d'extrusion (68-1,68-2,68-3) dans le prolongement d'un élément séparateur (72-,72-2,72-3), et e)une troisième lame de profilage (74) comprenant une dent (74-1,74-2,74-3) en saillie devant et à côté de chaque sortie (70-1,70-2,70-3) d'un troisième canal (68-1,68-2,68-3) dans la direction transversale (DT1).