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Showing 1 to 20 of 40 for “"Extrudate"”.
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Computational modeling of fiber reinforced composites melt flow in nozzle extrudate for polymer deposition additive manufacturing.
… inputs affect LAAM bead output properties (e.g., extrudate swell, fiber orientation, and effective elastic constants). The finite element method is applied to solve the flow kinematics and free surface shape of the nozzle-extrudate polymer melt that is defined by generalized Newtonian and …
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Characterization of Drug-Loaded Milled Extrudate Particles Produced by Hot Melt Extrusion Technology for Dry Powder Inhalers
The aim of the current investigation is to develop a sustained-release dry powder inhalation (DPI) formulation through continuous Hot Melt Extrusion (HME) process and see the impact of Sodium Bicarbonate (SB) and Mannitol (MAN) on the hydrophobic Eudragit RL PO (ERLPO) polymer. Ball milling and …
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An investigation into the polyethylene extrudates produced by simultaneous orientation and high temperature quenching
… and constructed to allow a molten polymer extrudate under tension - or draw-down - to pass through a volume of liquid metal alloy in order that the extrudate would rapidly reach the temperature of the metal and be fully quenched on leaving the medium. The temperature of the medium could be …
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Multiscale continuum thermodynamics based modeling of transport mechanisms and starch expansion during extrusion
… changes occurring inside the expanding extrudate were described using the two–scale unsaturated transport equations coupled with the poroviscoelasticity equations. The poroviscoelastic extrudate matrix interacted with the fluids (liquid water, vapor and air mixture) contained in its …
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Simulation of aluminium extrusion process.
… consistent properties over the length of the extrudate. The FORGE3® program was used to simulate the effect of changing the die geometry on material flow during extrusion for rod, shapes and tube extrusion and the effect of the initial temperature on the deformation zone. The load required, …
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Analysis of the conform process: a specific form of aluminium extrusion.
… the production of flash and the quality of the extrudate in terms of mechanical properties. This study provides the reader with the findings of the research and experimental work undertaken by the author, his co-workers and fellow specialists, in the field of aluminium extrusion including …
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Numerical modelling of the aluminium extrusion process
… complex shape. In addition the properties of the extrudate are closely related to the processing parameters (temperature, stain rate, and material morphology). Since all the parameters vary throughout the ram stroke and throughout the billet the prediction of the condition of the extrudate is …
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Fibre Orientation and Breakage in Glass Fibre Reinforced Polymer Composite Systems: Experimental Validation of Models for Injection Mouldings. Validation of Short and Long Fibre Prediction Models within Autodesk Simulation Moldflow Insight 2014
… length measurements have been taken from the extrudate, sprue and 2 positions within the centre gate cavity. The size of the sprue has little influence on fibre breakage if the moulding is more than 1 mm thick The SGF FOD prediction models within Autodesk Simulation Moldflow Insight 2014 …
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Hybrid inkjet and direct-write multi-material additive manufacturing
… or force sensitive resistivity. Models for the extrudate flow rate are used alongside experimental determination of the extrudate cross-section to ensure accurate process congruence. Finally, printed results demonstrate the various printing techniques, highlight the expanded material library, …
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Extrusion processing of selected fish feed blends containing distillers dried grains with solubles (DDGS)
… cooking and resulting cohesiveness of the final extrudates.<br /> The effects of varying formulations and extruder settings on extruder processing parameters and on the resulting physical properties of the extrudates were examined. During processing, mass flow rate (g/min), moisture content at …
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Patient Friendly Formulations Utilizing Hot Melt Extrusion Technology
… the crystallinity of the API. The milled extrudates were subjected to dissolution testing in an artificial salivary fluid and investigations using e-tongue, to assess the extent of masking of bitter taste of the API. There was an insignificant amount of drug released from the formulation …
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Characterization of dispersive and distributive mixing in a co-rotating twin-screw compounding extruder
… six-fold increase in distributive mixing in the extrudate.
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Constitutive analysis and extrusion modeling of 6061 alloy and particulate composite
… results, maximum strain rate and maximum extrudate velocity increased with increasing ram speed or extrusion ratio and were not influenced by the percent reinforcement or initial billet temperature. The rate of decrease of nun load as a function of time (distance) increased with increasing …
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When Lipids Meet Proteins
… verbessert wurde. Die Oxidation in sojabasierten Extrudaten mit unterschiedlichem Ölgehalt wurde während einer beschleunigten Lagerung untersucht. Die Ergebnisse zeigten, dass sowohl die Extrusion als auch die Lagerung oxidative Veränderungen induzierten, die zu strukturellen und funktionellen …
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Numerical modelling of the aluminium extrusion process when producing complex seactions.
… temperature evolution, surface formation of the extrudate and material flow during the process. These all showed good correlation with experimental results. The microstructure evolution during the extrusion process and the following solution soaking process were simulated with physically-based …
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Investigations on the Role of Distillers Dried Grains with Solubles for Producing Aquaculture Feed Using Extrusion Technology
… and twin screw extruders and the properties of extrudates were studied. The experiments conducted in the Brahender single screw extruder includes: effect of changing the level of DDGS (20, 30 and 40%) along with other ingredients without cheese whey, moisture content (15, 20 and 25%) and screw …
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Development and evaluation of oral solid dosage forms for colonic delivery of drugs for the treatment of cystinosis.
… the properties of each wet mass formulation, extrudate and spheronisation product that were obtained, subsequently comparing them to those obtained from a standard extrusion aid - microcrystalline cellulose. Where the produced pellets were viable, they were subjected to detailed analytical …
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Numerical modelling of the aluminium extrusion process and comparison with results obtained from industrially extruded complex sections.
… temperature evolution, surface formation of the extrudate and material flow during the process. The effect of varying process conditions on the selected geometries were investigated and verified by means of experiment. Considering the difficulty in performing the experiments (high temperature and …
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Simulation of nonisothermal and time-dependent viscoelastic flows
… energy to model the nonisothermal viscoelastic extrudate swell problem. For contraction-shaped dies, the final thickness of the extrudate is shown to depend on both the thermal and the strain histories of the fluid emerging, at the die exit. In this thesis second part of this thesis, efficient …
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Modeling of three-dimensional viscoelastic flows with free surfaces using a finite element method
… code predicts the correct free surface shape and extrudate swell found in incompressible, inertialess Newtonian free jets from cylindrical capillaries. Extruded elliptical jets of Newtonian fluids (2:1 and 3:2 aspect ratios) were found to increase in area to the same extent as cylindrical jets, …
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