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Relevant bibliographies by topics / Plastics – Extrusion

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Academic literature on the topic 'Plastics – Extrusion'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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Journal articles on the topic "Plastics – Extrusion"

1

Schall, Christoph, Matthias Altepeter, Volker Schöppner, Sven Wanke, and Marina Kley. "Material-Preserving Extrusion of Polyamide on a Twin-Screw Extruder." Polymers 15, no. 4 (February 19, 2023): 1033. http://dx.doi.org/10.3390/polym15041033.

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In the context of plastics recycling, plastics are processed several times. With each new melting and extrusion the plastic is damaged, which can have a negative effect on product properties. To counteract material damage, special additives such as chain extenders can be used, which are intended to lead to post-polymerization during processing. A linear chain extension is important here, as branching and crosslinking can lead to uncontrolled changes in the plastic’s properties. To investigate the suitability of specialized linear chain extenders for polyamides, a polyamide-6 was processed several times and the molar mass distribution was evaluated after each extrusion cycle. Three series of tests were carried out. First, the plastic was regranulated five times without additives and twice with different concentrations of chain extenders on a twin-screw extruder. The results of the study show that not only can molar mass degradation be prevented with the appropriate additive, it is even possible to achieve a material buildup during processing. In our experiments, the polydispersity of the molar mass distribution remained nearly identical despite multiple extrusions. Thus, reactive extrusion makes it possible for the corresponding plastics to be processed several times without the molar mass decreasing. If a sufficiently pure material flow can be ensured during recycling, the number of possible reprocessings of the plastic can be significantly increased without the need to add virgin material.

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Robinson, J. S. "Plastics patents: Extrusion." Advances in Polymer Technology 2, no. 4 (1993): 233–39. http://dx.doi.org/10.1002/adv.1993.060020402.

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Nastaj, Andrzej, and Krzysztof Wilczyński. "Optimization for the Contrary-Rotating Double-Screw Extrusion of Plastics." Polymers 15, no. 6 (March 16, 2023): 1489. http://dx.doi.org/10.3390/polym15061489.

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A novel computer optimization system for the contrary-rotating double-screw extrusion of plastics was developed in this study. The optimization was based on the process simulation performed with the use of the global contrary-rotating double-screw extrusion software TSEM. The process was optimized using the GASEOTWIN software developed for this purpose using genetic algorithms. Several examples of optimization of the contrary-rotating double screw extrusion process parameters, i.e., the extrusion throughput, and minimize the plastic melt temperature and the plastic melting length.

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Jiang, Qifeng, Ramdane Boulahia, Fahmi Zaïri, Iurii Vozniak, Zhengwei Qu, Jean-Michel Gloaguen, and Xiaobing Liu. "Microstructure and Mechanical Properties of Severely Deformed Polypropylene in ECAE (Equal Channel Angular Extrusion) via Routes A and C." Polymers 14, no. 23 (December 3, 2022): 5287. http://dx.doi.org/10.3390/polym14235287.

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Equal channel angular extrusion (ECAE) is a solid-state extrusion process for modifying microstructures via severe plastic deformation without modifying the specimen cross section. In this study, changes in the microstructure and mechanical properties of polypropylene resulting from extrusion orientation route A (no rotation between extrusions) and extrusion orientation route C (a rotation of 180° between extrusions) are investigated using a 90° die-angle tooling outfitted with back pressure. Important differences are reported for the ECAE-induced deformation behavior between the two processing routes. A focus is made on the occurrence of heterogeneous plastic deformations (periodic shear banding and warping) for both routes and the control and inhibition of the plastic instabilities via regulated back pressure and ram velocity. Wide-angle X-ray scattering is carried out to characterize the structural evolution as a function of the processing conditions including route, extrusion velocity and BP application. The mechanical properties of the specimens machined from the ECAE pieces are examined under different loading paths including uniaxial tension/compression and simple shear. Full-field displacements converted to volumetric strains revealed the profound impacts of the processing route on the deformation mechanisms during tensile deformation.

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Sikora, Janusz, Łukasz Majewski, and Andrzej Puszka. "Modern Biodegradable Plastics—Processing and Properties: Part I." Materials 13, no. 8 (April 24, 2020): 1986. http://dx.doi.org/10.3390/ma13081986.

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This paper presents a characterization of a plastic extrusion process and the selected properties of three biodegradable plastic types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based plastic (TPS-P), BIOPLAST GF 106/02; corn starch based plastic (TPS-C), BioComp®BF 01HP; and a polylactic acid (polylactide) plastic (PLA), BioComp®BF 7210. Plastic films with determined geometric parameters (thickness of the foil layer and width of the flattened foil sleeve) were produced from these materials (at individually defined processing temperatures), using blown film extrusion, by applying different extrusion screw speeds. The produced plastic films were tested to determine the geometrical features, MFR (melt flow rate), blow-up ratio, draw down ratio, mass flow rate, and exit velocity. The tests were complemented by thermogravimetry, differential scanning calorimetry, and chemical structure analysis. It was found that the biodegradable films were extruded at higher rate and mass flow rate than LDPE; the lowest thermal stability was ascertained for the film samples extruded from TPS-C and TPS-P, and that all tested biodegradable plastics contained polyethylene.

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Phanthong, Patchiya, Yusuke Miyoshi, and Shigeru Yao. "Development of Tensile Properties and Crystalline Conformation of Recycled Polypropylene by Re-Extrusion Using a Twin-Screw Extruder with an Additional Molten Resin Reservoir Unit." Applied Sciences 11, no. 4 (February 14, 2021): 1707. http://dx.doi.org/10.3390/app11041707.

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Plastic mechanical recycling is an attractive method for reducing the amounts of waste plastics. However, the alterations in the mechanical properties (degradation) in recycled plastics is a limitation to the material’s mechanical recycling. In this study, the mechanical recycling was enhanced by the addition of a “molten resin reservoir” unit at the end of the twin-screw extruder. Recycled polypropylene (RPP) obtained from a household was re-extruded with this developed extrusion unit. The tensile properties, type of crystalline, and conformation of polypropylene polymorphs were evaluated and compared for virgin polypropylene (VPP), recycled polypropylene (RPP) without extrusion (RPP-original), and RPP with extrusion by using a new type of extruder (RPP-extrusion). It could be found that the tensile properties of RPP-extrusion were improved, so as to be similar to those of VPP. In addition, the conformation of RPP-extrusion was similar to that of VPP by increasing the ratio between the helix and parallel band. This study succeeded in regenerating the tensile properties and inner structures in recycled PP, which could prolong the used lifetime and decrease the amount of waste from single-use plastic.

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SATO, Norio. "Reactive Extrusion for Plastics Recycle." Kobunshi 45, no. 7 (1996): 474–76. http://dx.doi.org/10.1295/kobunshi.45.474.

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Ekimenko, A. N. "Ram extrusion of reactive plastics." Russian Engineering Research 33, no. 5 (May 2013): 253–57. http://dx.doi.org/10.3103/s1068798x13050043.

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Poungthong, Pongthep, Chanyut Kolitawong, Chaimongkol Saengow, and Alan Jeffrey Giacomin. "Plastic pipe solidification in extrusion." Journal of Polymer Engineering 38, no. 6 (July 26, 2018): 591–603. http://dx.doi.org/10.1515/polyeng-2017-0164.

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AbstractIn plastic pipe extrusion, hot molten extrudate emerges from an annular. This highly viscous liquid is then cooled and solidified, calledquenching, in a quench tank. In this paper, we focus on the external cooling system. We use an adiabatic inner wall and differing outer wall boundary conditions: isothermal and convection. The solid-liquid interface, at the solidification temperature, moves inward with deceleration. We adimensionalize the energy balance and solve for the interface speed in terms of the solidifcation coefficient,λ. We arrive at the exact solutions for the evolving solidified thickness. Finally, we use the residual stress model developed by Jansen [Int. Polym. Proc. 1994, 9, 82–89]. to predict the compressive residual stress at the outer pipe surface. Our new exact solution for the solidification time agrees well with the data from the plastic pipe industry. The goals of this paper are to help plastics engineers calculate the solidification time, to design the cooling chamber and to predict the residual quenching stress.

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Kimura, Takeyoshi, Takumitsu Kida, and Masayuki Yamaguchi. "Viscoelastic Properties of Fully Biomass-Based Transparent Plastic Comprising Cellulose Acetate and Citrate Ester." Materials 15, no. 9 (April 22, 2022): 3038. http://dx.doi.org/10.3390/ma15093038.

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Viscoelastic properties including melt processability were evaluated for a fully biomass-based glassy plastic comprising cellulose acetate (CA) and triethyl citrate (TEC). The TEC exerted an excellent plasticizing effect without dissolving the CA crystals. Pure CA has poor melt processability. In contrast, the TEC-plasticized CA had good melt-processability at 205 °C, which is lower than the degradation temperature of CA. Extrusion was possible even at 1000 s−1 without any flow instabilities, similar to conventional plastics showing good processability at extrusion. Furthermore, there was marked strain-hardening behavior in the transient elongational viscosity, suggesting that various processing operations are possible, such as a long-chain branched polymer. This biomass-based plastic can be used as a substitute for conventional glassy plastics because it is highly transparent and its softening temperature is above 100 °C.

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Dissertations / Theses on the topic "Plastics – Extrusion"

1

Macauley, Nicola Jayne. "Extrusion and thermoforming of polypropylenes." Thesis, Queen's University Belfast, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337017.

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Lam, Ying. "Quantification of dynamic mixing characteristics during polymer extrusion." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B36540869.

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Lam, Ying, and 林瀅. "Quantification of dynamic mixing characteristics during polymer extrusion." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B36540869.

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Zhao, Jianhong. "Solid state extrusion of polymers through convergent-divergent dies." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/22079.

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Compared with metals, polymer materials have Iow strength and stiffness. However, molecular orientation can enhance many mechanical properties of polymer materials in the direction of orientation. Studies on solid state polymer extrusion (Le. extrusion carried out at temperatures below the melting point of the polymer) through convergent dies show that it is possible to produce extrudates exhibiting a high degree of monoaxial orientation in the extrusion direction. Although the strength of these extrudates has been greatly enhanced in the orientation direction, the strength decreases in the transverse direction to the axial orientation. Biaxially oriented polymer materials, on the other hand, show increased mechanical properties in more than one direction. But so far, extrusion processes that confer orientation in more than one direction have not received much attention. The present work is concerned with the development of biaxial orientation in thick thermoplastics extrudates by extrusion through dies exhibiting simultaneously converging and diverging walls perpendicular to each other and with a cross-section area at the die entry being the same as at the exit. Four die designs are examined, known respectively as the dual-taper die, the expansion fish-tail die, the constant fish-tail die and the cross die, using polytetrafluoroethylene and ultra-high molecular weight polyethylene. Measurements of birefringence and tensile strength on sections of the extrudates have shown that a preferential orientation along the transverse direction is normally achieved with the fish-tail dies and the dual-taper die, while the extrudates obtained with the cross die were found to exhibit a cross-ply orientation pattern with a bias in the extrusion direction for outerlayers and a preferential orientation in the transverse direction for the middle layers. The mechanics of the processes has been analysed by a plasticity approach for solid state extrusion, and by using variable wall boundaries for the melt extrusion analysis. The extrusion pressure predicted by the analysis compares very well with the values measured experimentally.

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Wang, Xinting. "NEW SYSTEMS FROM THE FORCED ASSEMBLY CO-EXTRUSION PROCESS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1607104088439343.

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Hurysz, Kevin Michael. "Paste mechanics for fine extrusion." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19424.

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Handlos, Agnita A. "The processing of microcomposites based on polypropylene and two thermotropic liquid crystalline polymers in injection molding, sheet extrusion, and extrusion blow molding." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164735/.

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Rongzhi, Huang. "MULTILAYER CO-EXTRUSION AND TWIN-SCREW COMPOUNDING OF POLYMERIC ELASTOMER SYSTEMS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1404864078.

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Shishesaz, Mohammad Reza. "Structure-property relationships in extruded plastics foams." Thesis, Brunel University, 1989. http://bura.brunel.ac.uk/handle/2438/5404.

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Physical properties and morphology of extruded semicrystalline polymers can be significantly affected by modification and change in die design and melt viscosity of the molten polymer. Further modifications to physical properties (i.e. density and open cell fraction) of foamed material occur, following the modification of melt viscosity by melt blending of polypropylene and high density polyethylene). The main object of this research project was to carry out a systematic examination of rheological properties of polymer/gas mixture, affect of die design, polymer molecular weight (melt viscosity), and processing conditions on density, open cell fraction, cell morphology (i.e. cell size and cell size distribution) and micromorphology of polyolefin foams. Also attention was given to method of stabilisation of extruded foam, where, it was found support of the extrudated foam (by adding a specially designed die adapter to the end of the die) prior to entering the cooling tank could result not only to a specimen with uniform cross section, but also due to drop in melt temperature, the cell walls are to some extent rigidized, hence, the collapse of bubbles are limited. From commercial point of view control of cell collapse, density and open cell fraction, will make these foamed materials valuable for their filtration characteristics. Microstructural analysis of polypropylene (unfoamed state) by X-ray diffraction and Differential Scanning Calorimetry revealed 13-spherulites are only formed in skin layer, and beneath the thickness of 500 pm from the surface, the crystal structure of this polymer is only consist of B-spherulites. On the other hand, the chemical blowing agent (Hydrocerol CF-20), was found to have nucleating affect on microstructure of polypropylene, where, it has resulted in reduction of size of spherulites together with a drop in recrystallisation temperature and formation of P and a spherulites through the thickness of extrudated foam. The foregoing chemical blowing agent was found to have no significant affect on the crystal structure of the high density polyethylene.

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Uvieghara, Mathias N. "The Effect of Deborah Number and Aspect Ratio on the Film Casting of LLDPE Melts." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/UviegharaMN2004.pdf.

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Books on the topic "Plastics – Extrusion"

1

Friedhelm, Hensen, ed. Plastics extrusion technology. 2nd ed. Munich: Hanser, 1997.

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Friedhelm, Hensen, and Berghaus U, eds. Plastics extrusion technology. 2nd ed. Munich: Hanser Publishers, 1997.

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Friedhelm, Hensen, Knappe W, Potente H, and Saudiford D, eds. Plastics extrusion technology. Munich: Hanser Publishers, 1988.

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Rauwendaal, Chris. Polymer extrusion. Munich: Hanser Publishers, 1986.

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Levy, Sidney. Plastics extrusion technology handbook. 2nd ed. New York, N.Y: Industrial Press, 1989.

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White, James Lindsay. Extrusion: Technology and principles. 2nd ed. Cincinnati, Ohio: Hanser Publications, 2010.

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Chris, Rauwendaal, ed. Troubleshooting the extrusion process: A systematic approach to solving plastic extrusion problems. 2nd ed. Munich: Hanser, 2010.

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8

Benbow, John. Paste flow and extrusion. Oxford: Clarendon Press, 1993.

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1933-, Belcher Samuel L., ed. Practical extrusion blow molding. New York: Marcel Dekker, 1999.

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Cheremisinoff, Nicholas P. Polymer mixing and extrusion technology. New York: M. Dekker, 1987.

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Book chapters on the topic "Plastics – Extrusion"

1

Titow, W. V. "Extrusion." In PVC Plastics, 497–523. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-3834-5_13.

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Rosato, Donald V., and Dominick V. Rosato. "Extrusion." In Plastics Processing Data Handbook, 91–169. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-010-9658-4_3.

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Rosato, Dominick V., Donald V. Rosato, Marlene G. Rosato, and Nick R. Schott. "Extrusion." In Plastics Institute of America Plastics Engineering, Manufacturing & Data Handbook, 544–644. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1615-6_11.

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Rao, Natti, and Keith O'Brien. "Extrusion." In Design Data for Plastics Engineers, 91–154. München: Carl Hanser Verlag GmbH & Co. KG, 1998. http://dx.doi.org/10.3139/9783446402447.007.

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Rao, Natti S., and Keith T. O'Brien. "Extrusion." In Design Data for Plastics Engineers, 91–154. München, Germany: Carl Hanser Verlag GmbH & Co. KG, 1998. http://dx.doi.org/10.1007/978-3-446-40244-7_7.

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Rosato, D. V. "The complete extrusion process." In Extruding Plastics, 1–53. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5793-7_1.

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Rosato, D. V. "Extrusion machine and line." In Extruding Plastics, 54–159. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5793-7_2.

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Selke, Susan E. M., and John D. Culter. "Extrusion, Film and Sheet." In Plastics Packaging, 213–44. München: Carl Hanser Verlag GmbH & Co. KG, 2015. http://dx.doi.org/10.3139/9783446437197.007.

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Selke, Susan E. M., John D. Culter, Rafael A. Auras, and Muhammad Rabnawaz. "Extrusion, Film and Sheet." In Plastics Packaging, 219–51. 4th ed. München: Carl Hanser Verlag GmbH & Co. KG, 2021. http://dx.doi.org/10.3139/9781569908235.007.

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Selke, Susan E. M., John D. Culter, Rafael A. Auras, and Muhammad Rabnawaz. "Extrusion, Film and Sheet." In Plastics Packaging, 219–51. München, Germany: Carl Hanser Verlag GmbH & Co. KG, 2021. http://dx.doi.org/10.1007/978-1-56990-823-5_7.

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Conference papers on the topic "Plastics – Extrusion"

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Eusterholz, Sebastian, and Stefanie Elgeti. "CFD-based optimization in plastics extrusion." In PROCEEDINGS OF THE 21ST INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5034961.

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Shimbo, Minoru, Kouji Nishida, Shigeo Nishikawa, Takanori Sueda, and Mitio Eriguti. "Foam Extrusion Technology of Microcellular Plastics." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0929.

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Abstract Processing technology was studied basically for microcellular plastics in this paper. The continuous processing system was constructed using extruder and was verified propriety of this system. In order to investigate cell morphology and cell structure, microcellular polystyrene samples were produced under various conditions by the above processing system. Concretely, foaming die which can be varied pressure in die was prepared. The effect of pressure drop in die on cell morphology of microcellular plastics was examined using this changeable die. In addition, the effect of blowing agent contents, temperature in die and besides additioner on that of microcellular plastics were also investigated.

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Hilfiker, James N., Craig M. Herzinger, Corey L. Bungay, John A. Woollam, and James F. Elman. "Optical characterization of anisotropic plastics." In Optical Interference Coatings. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/oic.1998.tuf.3.

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Plastics have many commercial applications including photographic film and display technology. They often exhibit biaxial anisotropy due to extrusion and stretching during preparation. The characterization of coatings on plastic will improve when the plastic optical properties are understood. Plastic processing can also be monitored through its optical properties.

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Musil, Jan, and Martin Zatloukal. "Historical review of die drool phenomenon during plastics extrusion." In NOVEL TRENDS IN RHEOLOGY V. AIP, 2013. http://dx.doi.org/10.1063/1.4802600.

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Huang, Han-Xiong, and Yan-Sheng Miao. "Hybrid Method for Modeling Parison Extrusion in Blow Molding." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80347.

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As the third largest plastics processing technique, blow molding is one of the fastest growing industries worldwide. In this paper, a series of simulations on the parison formation in plastics extrusion blow molding were implemented using finite element method. Then a neural network model was developed based on the numerical results. The effects of the extrusion die inclination angle, die gap, and parison length on the parison swells can be predicted using the network model. The hybrid method combining the finite element and neural network can shorten the time for the predictions drastically.

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Behravesh, Amir H., Chul B. Park, and Ronald D. Venter. "Extrusion of Low-Density Microcellular HIPS Foams Using CO2." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-1407.

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Abstract A continuous extrusion process for the manufacture of low-density microcellular polymer is presented. Microcellular polymers are foamed plastics characterized by a cell density greater than 109 cells/cm3 and a fully grown cell size on the order of 10 μm. The basic approach to the production of microcellular structures is to continuously form a polymer/gas solution, nucleate a large number of bubbles using rapid pressure drop, shape a nucleated polymer/gas solution under pressure, and induce a volume expansion to a desired expansion ratio. Successful completion of these steps in extrusion will enable the manufacture of microcellular foamed plastics with a high cell-population density. Previous research on the continuous processing of microcellular polymers has focused on control of microcell nucleation in extrusion. This paper presents an effective means for the control of cell growth to achieve a desired expansion ratio with CO2 as a blowing agent in microcellular foam processing. Also, a strategy to prevent the deterioration of the cell-population density via cell coalescence during expansion is presented. The promotion of a desired volume expansion ratio and the prevention of the cell coalescence in microcellular foam processing were experimentally verified. By tailoring the extrusion processing parameters, microcellular HIPS foams with a cell density of 1010 cells/cm3 and a controlled expansion ratio in the range of 1.5 to 23 were obtained.

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Botos, J., N. Murail, P. Heidemeyer, K. Kretschmer, B. Ulmer, T. Zentgraf, M. Bastian, and T. Hochrein. "Color measurement of plastics - From compounding via pelletizing, up to injection molding and extrusion." In PROCEEDINGS OF PPS-29: The 29th International Conference of the Polymer Processing Society - Conference Papers. American Institute of Physics, 2014. http://dx.doi.org/10.1063/1.4873725.

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Ibar, J. P. "Smart Processing of Plastics Through Vibration Controlled Shear-Thinning and Orientation." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0632.

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Abstract This paper covers the technology of melt vibration during the molding of plastic material (more specifically at low frequency) to reduce the viscosity and ease processability and to produce orientation benefits. The effect of vibration frequency and amplitude on melt viscosity is explained in terms of shear-thinning criteria. The effect of pressure, temperature and cooling rate on shear-thinning is also reviewed to predict how these variables interfere with melt vibration. Applications to injection molding, extrusion and blow molding of uneasily processable plastic melts (such as metallocenes polyolefins) are suggested.

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Meinlschmidt, Peter, Jochen Aderhold, and Friedrich Schlüter. "Inline monitoring of structural quality and thermal conductivity of plastics in the hot extrusion process by means of infrared thermography." In OCM 2017 - 3rd International Conference on Optical Characterization of Materials. KIT Scientific Publishing, 2017. http://dx.doi.org/10.58895/ksp/1000063696-18.

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In a joint project called ”Sensoren und Auswertestrategien zur autonomen U¨ berwachung von kontinuierlichen Kunststoffprozessen” (KontiSens), the Fraunhofer Institute for Chemical Technology (ICT), the WKI, and partners from industry work on the development of sensors and evaluation strategies for the autonomous monitoring of continuous plastics production processes. The task of the WKI is to develop a monitoring technology based on infrard imaging for the production of insulating materials by hot extrusion.

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Wang, H. P., Erin M. Perry, and Martin K. Lee. "Semi-Empirical Process Modeling: Model and Database Integration." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0619.

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Abstract Process modeling has been successfully used in the plastics injection molding industry over the past decade. However, mathematical descriptions in certain areas of plastics processing are either not very well understood or are too complicated to be formulated. An alternative method, such as the semi-empirical approach which integrates models with data bases, has been found to be very effective in helping the tooling engineer with the following problems: understanding the interactions between product design, process conditions, and materials; identifying the process windows; and shortening the tooling design cycle time. Two semi-empirical process models, for the polyurethane foaming and profile extrusion processes, are discussed here to illustrate this useful methodology.

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Reports on the topic "Plastics – Extrusion"

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Li, Xiao, Tianhao Wang, Yelin Ni, Pimphan Meyer, Jose Ramos, and Kevin Simmons. Shear Assisted Processing and Extrusion (ShAPE) of Plastics: Recycling and Remolding. Office of Scientific and Technical Information (OSTI), September 2023. http://dx.doi.org/10.2172/2004584.

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Hudson, Tracy D., and Carrie D. Hill. Three-Dimensional (3-D) Plastic Part Extrusion And Conductive Ink Printing For Flexible Electronics. Fort Belvoir, VA: Defense Technical Information Center, April 2012. http://dx.doi.org/10.21236/ada559396.

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Kamburov, Valentin. Anomalous Strain Hardening Effect for High Strain of Severe Plastic Deformation under Dual Equal Channel Extrusion. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, May 2018. http://dx.doi.org/10.7546/crabs.2018.04.13.

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Wexco Corporation: Assessment Uncovers $53,000 in Energy Efficiency Opportunities at Plastic Extrusion Cylinder Manufacturer. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/15020463.

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