摘要:
Ein Extruder weist Knetblöcke (50 bis 53) auf, deren Kurvenscheiben (50a bis 50e) einen schmalen Kamm (5) aufweisen, der die Innenwand des Gehäuses im wesentlichen dicht abstreift, und wenigstens einen weiteren, breiten Kamm (6) im Abstand von der Gehäusewand, wobei die Gänge (58) jedes Knetblocks (50, 51) durch sich abwechselnde breite Kämme (6) und schmale Kämme (5) gebildet werden.
摘要:
Die Erfindung betrifft neue Schneckenelemente für mehrwellige Schneckenmaschinen mit paarweise gleichsinnigen und paarweise exakt abschabenden Schneckenwellen.
摘要:
The invention relates to a treatment element (31, 32) for treating material in a multi-shaft worm machine, comprising an outer contour (A(φ)) having at least one outer contour segment (A(Δφ)), the corresponding evolute (E) thereof being a quantity of at least three points, wherein each of the points is located outside of the longitudinal axis (M 1 , M 2 ) and within the external radius (R a ) of the treatment element (31, 32) and two adjacent points always comprise a distance from each other that is less than half the core radius (R i ). The treatment element (31, 32) ensures a high level of flexibility when setting up shear and/or extensional flows on the material to be treated.
摘要:
The invention relates to screw elements for multi-shaft screw-type machines comprising screw shafts that co-rotate in pairs and accurately wipe in pairs. The sum of all ridge angles of a pair of screw elements is greater than or equal to 0 and smaller than 2*pi-8*arccos (0.5*a/ra), the number of ridge regions of a pair of screw elements is greater than 4, each screw element of a pair of screw elements has two profiled screw regions that consist of flank regions and channel regions, and the sum of the flank angles and channel angles is greater than pi/2. The invention also relates to the use of said screw elements and an extrusion method.
摘要:
The invention relates to a method for extruding plastic materials, particularly polymer melts and mixtures of polymer melts, particularly thermoplastic resins and elastomers, particularly preferred polycarbonate and polycarbonate blends, also by admixing other substances such as solids, liquids, gases or other polymers or other polymer mixtures having improved optical properties, using a multi-shaft extruder having special screw geometries.
摘要:
The invention relates to a method for producing closely intermeshing, self-cleaning, co-rotating screw profiles, to the use of screw profiles in screw and transition elements, to novel screw profiles that are produced by the method and to a computer program product for carrying out the method on a computer system.
摘要:
The invention relates to screw elements for multi-shaft screw extruders having screw shafts that co-rotate in pairs and that exactly wipe off in pairs. The invention further relates to the use of the screw elements in multi-shaft screw extruders and to a method for producing the screw elements.