Relevant bibliographies by topics / Water assisted injection molding

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Water assisted injection molding'

Author: Grafiati
Published: 30 September 2022

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Journal articles on the topic "Water assisted injection molding"

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Park, Hyungpil, Baeg-Soon Cha, and Byungohk Rhee. "Experimental and Numerical Investigation of the Effect of Process Conditions on Residual Wall Thickness and Cooling and Surface Characteristics of Water-Assisted Injection Molded Hollow Products." Advances in Materials Science and Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/161938.

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Recently, water-assisted injection molding was employed in the automobile industry to manufacture three-dimensional hollow tube-type products with functionalities. However, process optimization is difficult in the case of water-assisted injection molding because of the various rheological interactions between the injected water and the polymer. In this study, the boiling phenomenon that occurs because of the high melt temperature when injecting water and the molding characteristics of the hollow section during the water-assisted injection process were analyzed by a water-assisted injection molding analysis. In addition, the changes in the residual wall thickness accompanying changes in the process conditions were compared with the analysis results by considering water-assisted injection molding based on gas-assisted injection molding. Furthermore, by comparing the cooling characteristics and inner wall surface qualities corresponding to the formation of the hollow section by gas and water injections, a water-assisted injection molding technique was proposed for manufacturing hollow products with functionality.
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Shih-Jung Liu. "Water-Assisted Injection Molding." Seikei-Kakou 18, no. 10 (October 20, 2006): 718–21. http://dx.doi.org/10.4325/seikeikakou.18.718.

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Liu, S. J. "Water Assisted Injection Molding: A Review." International Polymer Processing 24, no. 4 (September 2009): 315–25. http://dx.doi.org/10.3139/217.2255.

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Liu, Shih-Jung, Kun-Yeh Lin, and Che-Chi Liu. "Manufacture of Thermoplastic Elastomer Tubes by Water Assisted Injection Molding Technology." Rubber Chemistry and Technology 81, no. 1 (March 1, 2008): 156–67. http://dx.doi.org/10.5254/1.3548194.

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Abstract The objective of this study was to manufacture thermoplastic elastomer tubes by a novel water assisted injection molding technology and to experimentally investigate the effects of various processing parameters on the molded parts quality. Styrene-ethylene/butylene-styrene (SEBS) compounds based thermoplastic elastomers were used for all the experiments. Experiments were carried out on a lab-developed water assisted injection-molding system, which included a water pump, a water injection pin, a water tank equipped with a temperature regulator, a pressure accumulator, and a control circuit. A porous type water injection pin was designed and made to mold the parts. After molding, the lengths of water penetration as well as the hollowed core ratios in molded tubes were measured. The effects of different processing parameters on the hollowed core ratios were determined. It was found that the melt temperature and water injection delay time were the principal factors influencing the water penetration behaviors. In addition, a comparison has been made between the parts molded by water assisted injection molding and gas assisted injection molding. The results suggest that water assisted injection molded parts mold parts with less residual wall thickness distributions along the channel. However, thermoplastic elastomers molded by water exhibited higher wall thickness difference at curve sections than those molded by gas.
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Hu, Qiao Sheng, Feng Ni, and Jian Ping Lin. "Strain Analysis on Weld Zone of Tailor Welded Blanks in the Case of Welded Seam Cracking." Advanced Materials Research 154-155 (October 2010): 355–58. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.355.

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A simulation model for the filling of a tubular cavity during water assisted injection molding is proposed. The polymer melt and water are assumed to be incompressible and to follow a Hele-Shaw fluid behavior. The finite element/finite difference/control volume methods are adopted for numerical simulation of the melt front, pressure at injection location variation, water thickness fraction and bulk temperature about a curved pipe, the simulation results have good agreement with the results presented in the former experiment. In comparison with the simulation result of gas-assisted injection molding, water assisted injection molding can give parts with thinner and more uniform walls and more rapid cooling.
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Kuang, Tang Qing. "Study on the Flow Behavior in a Tubular Cavity during Water-Assisted Injection Molding." Advanced Materials Research 154-155 (October 2010): 359–62. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.359.

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A simulation model for the filling of a tubular cavity during water assisted injection molding is proposed. The polymer melt and water are assumed to be incompressible and to follow a Hele-Shaw fluid behavior. The finite element/finite difference/control volume methods are adopted for numerical simulation of the melt front, pressure at injection location variation, water thickness fraction and bulk temperature about a curved pipe, the simulation results have good agreement with the results presented in the former experiment. In comparison with the simulation result of gas-assisted injection molding, water assisted injection molding can give parts with thinner and more uniform walls and more rapid cooling.
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BOCIAGA, ELZBIETA. "Water and gas/water assisted injection molding of polymers." Polimery 52, no. 02 (February 2007): 88–93. http://dx.doi.org/10.14314/polimery.2007.088.

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Kuang, Tang Qing. "Study on one Dimensional Numerical Simulation in Filling Stage of Water-Assisted Injection Molding." Advanced Materials Research 179-180 (January 2011): 1193–98. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.1193.

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Water assisted injection molding is a pretty novel way to fabricate hollow or more complicated parts. Its molding window and process control are more critical and difficult since additional processing parameters are involved. A simulation model for the filling stage of a pipe cavity during short-shot water assisted injection molding was proposed. The finite element/finite difference/control volume methods were adopted for the numerical simulation. A numerical study, based on the single factor method, was conducted to characterize the effect of different processing parameters on the short shot water-assisted injection-molding of thermoplastic composites, including short-shot size, melt temperature, mold temperature, water temperature and water pressure. For the factors selected in the simulations, short-shot size was found to be the principal parameters affecting the water penetration length while melt temperature, mold temperature, water temperature, water pressure were found to have little effect on the penetration of water.
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Kuang, Tang Qing, and Kun Han. "Study on the Flow Behavior in Thin Cavity during Water-Assisted Injection Molding." Key Engineering Materials 467-469 (February 2011): 80–83. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.80.

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A numerical simulation model for the flow behavior of fluids in thin cavity during water assisted injection molding process is built up by adopting general Newtonian fluid model for the filling stage and non-Newtonian and compressible fluid model for the packing stage separately. Finite element/finite difference/control volume methods are adopted for the simulation of melt front, pressure variation at injection location, water thickness fraction and bulk temperature about a plate with trapezoidal cross-section. The simulated melt front location and shape have good agreement with experimental result. In comparison with the simulation results of conventional injection molding, it turns out that water assisted injection molding can obtain parts with low pressure requirement, perfect surface quality and rapid cooling.
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Kuang, T. Q., P. Xu, Q. Feng, and L. S. Turng. "Water-Assisted Co-Injection Molding of Non-Circular Tubes." IOP Conference Series: Earth and Environmental Science 267 (June 8, 2019): 042164. http://dx.doi.org/10.1088/1755-1315/267/4/042164.

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Dissertations / Theses on the topic "Water assisted injection molding"

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Zerguine, Walid. "Adaptation de maillages anisotropes et écoulements multifluides : Applications en injection assistée eau." Paris, ENMP, 2010. http://www.theses.fr/2010ENMP0082.

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L’Injection Assistée Eau (IAE) est un procédé récent de fabrications de pièces creuses thermoplastiques. La simulation numérique est une étape importante du processus de mise au point de cette technologie innovante. Le cadre de ces travaux de thèse est le développement d’un module de simulation numérique du procédé IAE. Les retombées industrielles et technologiques de cet outil numérique apporteront des informations cruciales sur la sensibilité des propriétés des pièces injectées aux conditions d’injection. L’hydrodynamique du système multiphasique polymère-eau-air est décrite par la résolution des équations de Navier-Stokes dans le cadre d’une formulation monolithique eulérienne. La méthode consiste à résoudre le système d’équations sur un seul maillage. Une fonction distance permet de décrire les interfaces eau-polymère et polymère-air, et de fournir les propriétés physiques de chaque sous-domaine. Une stratégie innovante d’adaptation dynamique de maillage anisotrope permet de diminuer les fortes hétérogénéités des phases en présence. Deux voies sont explorées. La première considère des maillages définis à partir de métriques construites a priori sur le gradient de la fonction Level set et la seconde approche considère la construction d’une métrique basée sur un estimateur d’erreur a posteriori minimisant l’erreur d’approximation sous contrainte de garder un nombre d’éléments constant. Une confrontation à des essais expérimentaux valide la pertinence de notre outil à prédire de manière précise l’évolution de la veine d’eau dans la pièce type IAE
The Water Assisted Injection Molding (WAIM) is a recent manufacturing process that produces thermoplastic hollow parts. Numerical simulation is an important step in the development of this innovative technology. The framework of the thesis is the development of a numerical simulation module for the WAIM process. The industrial and technological benefits of this numerical tool will provide crucial information on the sensitivity of the properties of injection molded parts to injection conditions. The hydrodynamics of the multiphase polymer-water-air system is described by the resolution of the Navier-Stokes equations within the framework of an eulerian monolithic formulation. The method consists in solving the system of equations on a single mesh. A distance function allows to describe the interfaces water-polymer and polymer-air to supply the physical properties of every sub-domain. A strategy of anisotropic dynamic mesh adaptation allows to decrease the strong heterogeneities of the phases in presence. Two ways are investigated. The first one considers meshes constructed from a priori metrics based on the gradient of the Levelset function and the second approach considers the construction of a metric based on a posteriori error estimator minimizing the error of approximation under constraint to keep a constant number of elements. A confrontation in experimental trials confirms the relevance of our tool to predict the evolution of the water vein in a typical WAIM part
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Wang, Yijie. "The Effect Of Non-Newtonian Rheology On Gas-Assisted Injection Molding Process." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1053622915.

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Carrillo, Antonio J. "Residual Stresses and Birefringence in Gas-assisted Injection Molding of Amorphous Polymers: Simulation and Experiment." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1214313599.

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Zheng, Tianmin. "An investigation of gas-assisted injection molding : effects of process variables on gas bubble formation /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487861396026928.

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Xu, Liqun. "Integrated analysis of liquid composite molding (LCM) processes." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095688597.

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Thesis (Ph. D.)--Ohio State University, 2004.
Title from first page of PDF file. Document formatted into pages; contains xix, 245 p.; also includes graphics. Includes bibliographical references (p. 233-245).
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Polynkin, A., L. Bai, J. F. T. Pittman, J. Sienz, Leigh Mulvaney-Johnson, Elaine C. Brown, A. Dawson, et al. "Water assisted injection moulding: development of insights and predictive capabilities through experiments on instrumented process in parallel with computer simulations." Maney Publishing, 2008. http://hdl.handle.net/10454/3511.

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Yes
An idealised model of core-out in water assisted injection moulding (WAIM) is set up to isolate the effect of cooling by the water on the deposited layer thickness. Based on simulations, this is investigated for a specific case as a function of Pearson number and power law index. It is found that cooling significantly reduces the layer thickness to the extent that a change in the flow regime ahead of the bubble, from bypass to recirculating flow, is possible. For shear thinning melts with high temperature coefficient of viscosity, the simulations show very low layer thickness, which may indicate unfavourable conditions for WAIM. Although in the real moulding situation, other effects will be superimposed on those found here, the results provide new insights into the fundamentals of WAIM. Investigation of other effects characterised by Fourier and Reynolds numbers will be reported subsequently. Some early process measurement results from an experimental WAIM mould are presented. Reductions in residual wall thickness are observed as the water injection set pressure is increased and the duration of water bubble penetration through the melt is determined experimentally. The formation of voids within the residual wall is noted and observed to reduce in severity with increasing water injection pressure. The presence of such voids can be detected by the signature from an infrared temperatures sensor.
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SHIH, Chang-Chih, and 史長志. "Water Assisted Injection Molding of Nylon 6." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10315795030588143752.

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碩士
長庚大學
機械工程研究所
93
This report was to experimentally study the water assisted injection molding of glass fiber reinforced polyamide-6 (Nylon-6) composites. Experiments were carried out on an 80-ton injection-molding machine equipped with a lab scale water injection system, which included a water pump, a water injection pin, a water tank equipped with a temperature regulator, and a control circuit. The materials used were nylon and 30% glass fiber filled nylon composites. A spiral mold cavity was used to mold the composites. After molding, the lengths of water penetration in molded parts were measured. The effects of different processing parameters on the lengths of water penetration were determined: melt temperature, mold temperature, melt filling speed, short-shot size, water pressure, water temperature, water hold and water injection delay time. Mechanical property tests were performed on the water assisted injection molded parts. XRD has also been employed to identify the structural parameters of the materials. In addition, the in-mold temperature distribution of the polymeric materials during the cooling process was measured. Irregular water penetration in molded parts was observed. Water temperature was found to affect the crystallinity distribution of molded parts. Nevertheless, its effects on the tensile properties of molded materials were relatively limited.
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Pan, Zhong ming, and 潘忠明. "The Study of Water-Assisted Injection Molding Process." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/50511316910339467405.

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碩士
清雲科技大學
機械工程研究所
94
This study investigated the manufacture of a handle bar by the water-assisted injection molding (WAIM) process. WAIM is a new technology based on gas-assisted injection molding (GAIM). Both use fluid as the medium, but one uses water while the other uses nitrogen gas. Experimental studies were conducted to determine the effects of process parameters on the hollowed core ratio and penetration length of the WAIM. Process parameters include melt temperature, water pressure, mold temperature, water injection delay time, shot size, and water temperature. Semi-crystalline material, PP, amorphous material, ABS, PP+GF, and ABS+GF were used for this study. Both single parameter method and Taguchi method were used to conduct this experiment. The result showed that the most influenced factor for penetrating length and hollowed core ratio is the short shot size.
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Wu, Yi-Chiun, and 吳逸群. "low Visualization of the Water Assisted Injection Molding Process." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/07913823981997662717.

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博士
長庚大學
機械工程研究所
95
Water-assisted injection molding technology has been used to manufacture plastic tubes in recent years, due to its light weight, relatively lower resin cost per part and faster cycle time. This research investigates the filling phenomena of the water assisted injection moulding process by using a flow visualisation technique and deveop a novel high flow rate water pin for water assisted injection molding of plastic parts. Experiments were carried out on an 80-tonne injection molding machine equipped with a laboratory-developed water injection unit. The material used was semi-crystalline polypropylene. A flow visualisation mould was specially designed and made for this study. A high-speed video camera was used to record the mould filling phenomena of rectangular cavities with three-channel geometry and layouts: a flat plate, a plate with two zones of different depths and a plate with symmetric ribs. The interaction between the assisting waterand the polymer melt during moulding was observed, and insight into the water penetration behaviour was summarised. The ring type and orifice type have the disadvantage of low flow rate and high pressure drop, while for the latter one the timing of piercing pin into the cavity is a challenge and the cost of mold is high. The pin, which consists of a sintered porous surface outlet, has been tested against parts with two different geometries: a plate with a channel across the center and a float-shaped tube part. The experimental results suggest that the proposed water injection pin can mold parts of large size with a more uniform residual wall thickness distribution.
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Ming-Ren, Lin, and 林銘仁. "Water-Assisted Injection Molding of PBT(Poly-butylene terephthalate)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/39994033345027390909.

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碩士
長庚大學
機械工程研究所
93
Abstract This report was to experimentally study the water assisted injection molding of poly-butylene-terephthalate (PBT) composites. Experiments were carried out on an 80-ton injection-molding machine equipped with a lab scale water injection system, which included a water pump, a water injection pin, a water tank equipped with a temperature regulator, and a control circuit. The materials used included a virgin PBT and a 15% glass fiber filled PBT composite. A plate cavity with a rib across the center was used. Various processing variables were studied in terms of their influence on the length of water penetrations in molded parts. Mechanical property tests were performed on the water assisted injection molded parts. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) have also been employed to identify the material and structural parameters. In addition, a comparison has been made between water assisted and gas assisted injection molded parts. It was found that the melt fill pressure, melt temperature, and short shot size were the dominant parameters affecting the water penetration behavior. Material at the mold-side exhibited higher crystallinity than that at the water-side. Parts molded by gas also showed higher crystallinity than those molded by water. In addition, the glass fibers near the surface of molded parts were found oriented mostly in the flow direction, and oriented substantially perpendicular to the flow direction with increasing distance from the skin surface.
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Books on the topic "Water assisted injection molding"

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Gas Assisted Injection Molding. CRC, 2003.

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Book chapters on the topic "Water assisted injection molding"

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Liu, Shih-Jung. "Water-Assisted Injection Molding." In Advanced Injection Molding Technologies, 89–113. München: Carl Hanser Verlag GmbH & Co. KG, 2019. http://dx.doi.org/10.3139/9781569906040.003.

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Wang, Maw-Ling, Rong-Yeu Chang, and Chia-Hsiang (David) Hsu. "Gas-/Water-Assisted Injection Molding." In Molding Simulation: Theory and Practice, 377–400. München: Carl Hanser Verlag GmbH & Co. KG, 2018. http://dx.doi.org/10.3139/9781569906200.013.

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Hsu, Chih-Chung (Jim), and Yu-Sheng (Tim) Chou. "Gas-/Water-Assisted Injection Molding." In Molding Simulation: Theory and Practice, 433–56. 2nd ed. München: Carl Hanser Verlag GmbH & Co. KG, 2022. http://dx.doi.org/10.3139/9781569908853.013.

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Mulyana, Rachmat, Jose M. Castro, and L. James Lee. "Water-Assisted Foaming: A New Improved Approach in Injection Molding." In Advanced Injection Molding Technologies, 149–94. München: Carl Hanser Verlag GmbH & Co. KG, 2019. http://dx.doi.org/10.3139/9781569906040.005.

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Liu, Shih-Jung. "Gas Assisted Injection Molding." In Injection Molding, 195–222. München: Carl Hanser Verlag GmbH & Co. KG, 2009. http://dx.doi.org/10.3139/9783446433731.005.

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Ham, Stephen. "Assisted Injection Molding." In Handbook of Plastic Processes, 125–88. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471786586.ch2.

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Michaeli, Walter. "Water Injection Techniques (WIT)." In Injection Molding, 223–50. München: Carl Hanser Verlag GmbH & Co. KG, 2009. http://dx.doi.org/10.3139/9783446433731.006.

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Lucchetta, Giovanni, Marco Sorgato, and Davide Masato. "Vacuum-Assisted Micro Injection Molding." In Micro Injection Molding, 191–212. München: Carl Hanser Verlag GmbH & Co. KG, 2018. http://dx.doi.org/10.3139/9781569906545.008.

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Hétu, Jean-François, and Florin Ilinca. "Three-Dimensional Simulation of Gas-Assisted and Co-Injection Molding Processes." In Injection Molding, 809–50. München: Carl Hanser Verlag GmbH & Co. KG, 2009. http://dx.doi.org/10.3139/9783446433731.020.

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Lerma Valero, José R. "Water and Plastics, a Difficult Friendship." In Plastics Injection Molding, 37–40. München: Carl Hanser Verlag GmbH & Co. KG, 2020. http://dx.doi.org/10.3139/9781569906903.004.

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Conference papers on the topic "Water assisted injection molding"

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Zhang, Zengmeng, and Hua Zhou. "Proportional Pressure Control of Water Hydraulic System for Water-Assisted Injection Molding: Modeling and Simulation." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2263.

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The proportional pressure control of water hydraulic system for water-assisted injection molding (WAIM) is investigated through modeling and simulation. WAIM is an innovative process to mold plastic parts with hollow sections. A water hydraulic system is designed for WAIM and a differential pressure control strategy is provided to regulate the water injection pressure by a proportional relief valve. An accumulator and a pressure cylinder are applied in the system and modeled in MATLAB. The load characteristic is analyzed and the coupling relationship between load pressure and flow rate is approximately simulated. Based on the variable-parameter model with linearization, open-loop and closed-loop control with multi-point feedback are investigated. Integral compensation and PI control are used with slope control of injection pressure. In addition, the influence of load characteristic is also investigated. Results of the simulation show that the closed-loop control contributes to the stability and disturbance resistance performance under various load characteristics.
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Chen, Shia-Chung, Yaw-Jen Chang, Jen-An Chang, Hsin-Shu Peng, and Ying-Chieh Wang. "Dynamic Mold Temperature Control Using Gas-Assisted Heating and Its Effect on the Molding Replication Qualities of Micro Channels." In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72458.

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Dynamic mold surface temperature control (DMTC) has the advantage of improving molded part qualities without significant increases in cycle time. A gas-assisted heating system combined with water cooling was developed to achieve DMTC for injection molding. With gas-assisted heating, it takes 2s for the mold surface temperature to vary from 60 °C to 120 °C whereas it requires 186s using water heating. Further, it takes 21s and 84s for the mold surface to cool to 60 °C under gas heating and water heating, respectively. The gas-assisted heating system also shows excellent efficiency for micro injection molding of biochips to achieve high replication accuracy of the micro channels.
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Silva, Luisa, Rodolphe Lanrivain, Walid Zerguine, Andrès Rodriguez-Villa, and Thierry Coupez. "Two-Phase Model of Liquid-Liquid Interactions With Interface Capturing: Application to Water Assisted Injection Molding." In MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications; NUMIFORM '07; Proceedings of the 9th International Conference on Numerical Methods in Industrial Forming Processes. AIP, 2007. http://dx.doi.org/10.1063/1.2740838.

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Li, Qiang, Jie Ouyang, Xuejuan Li, and Binxin Yang. "3D Numerical Simulation of Gas-assisted Injection Molding." In 2010 Third International Conference on Information and Computing Science (ICIC). IEEE, 2010. http://dx.doi.org/10.1109/icic.2010.120.

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Rusch, Ken C. "Gas Assisted Injection Molding - The New Thermoplastic Molding Technology for Exterior Body Panels." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/890699.

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Kuang Weihua and Cui Jianqiang. "Application study of water kettle handle injection molding." In International Technology and Innovation Conference 2009 (ITIC 2009). IET, 2009. http://dx.doi.org/10.1049/cp.2009.1490.

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Angstadt, David C., and John P. Coulter. "Product Strength and Orientation Manipulation via Vibration-Assisted Injection Molding." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33928.

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This investigation focuses on determining why polystyrene ASTM specimens exhibit an increase in tensile strength when processed by vibration assisted injection molding (VAIM) while polycarbonate parts do not. VAIM is one of several polymer processing methods that attempt to improve product properties via manipulation of the polymer melt. Observation of birefringence patterns in VAIM processed polystyrene samples show a significant impact on molecular orientation. The same studies were conducted on opaque polycarbonate and were unable to determine the degree of molecular orientation via birefringence measurement. It was theorized that VAIM did not produce significant orientation due to its higher thermal conductivity and stiffer backbone. It has been determined by this investigation that VAIM processing does impart significant molecular orientation in polycarbonate specimens but still does not increase its UTS. It is proposed that increased molecular orientation induced by VAIM processing inhibits crazes from growing into cracks. VAIM therefore favors polymers that fail by crazing (e.g., polystyrene) rather than those that fail by shear yielding (e.g., polycarbonate).
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Tom, Alan M., Akihisa Kikuchi, and John P. Coulter. "An Experimental Evaluation of Vibration-Assisted Injection Molding During Manufacturing." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1258.

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Abstract The current investigation focused on contributing to the development of a novel injection molding process by attempting to understand the scientific relationship that exist between the applied vibrational parameters involved in this process and the effect it has on final product polymeric characterization. Although previous and current attempts at understanding the connection between applied oscillatory or vibrational motion to an injection molding process has shown positive quantitative advantages to final product properties, there still exists a void in the scientific explanation on a molecular level linking these effects. This experimental study, in particular, involved an evaluation on a range of processing conditions applied to Polystyrene and the effects it produced on resultant product quality and polymer properties. Optimal control and mechanical vibrational molding conditions were obtained for Polystyrene. As a result of this, optimal opportunities for initial commercial utilization of the technology can be proposed.
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Song, Jianhao, Feng Gao, Qiu-an Huang, Yuezhi Liu, Longjie Zhang, and Yong Chen. "Modeling and Analysis of Water Injection Cooling Molding System." In IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2021. http://dx.doi.org/10.1109/iecon48115.2021.9589368.

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Ou, Changjin, and Lanruo Mao. "A Investigation of Fuzzy Control for Gas-injection Pressure in Gas-Assisted Injection Molding." In 2007 2nd IEEE Conference on Industrial Electronics and Applications. IEEE, 2007. http://dx.doi.org/10.1109/iciea.2007.4318388.

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Reports on the topic "Water assisted injection molding"

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Kennedy, Alan, Andrew McQueen, Mark Ballentine, Brianna Fernando, Lauren May, Jonna Boyda, Christopher Williams, and Michael Bortner. Sustainable harmful algal bloom mitigation by 3D printed photocatalytic oxidation devices (3D-PODs). Engineer Research and Development Center (U.S.), April 2022. http://dx.doi.org/10.21079/11681/43980.

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Abstract:
The impacts of Harmful Algal Blooms (HAB), often caused by cyanobacteria (Figure 1), on water resources are increasing. Innovative solutions for treatment of HABs and their associated toxins are needed to mitigate these impacts and decrease risks without introducing persistent legacy contaminants that cause collateral ecosystem impacts. This technical note (TN) identifies novel opportunities enabled by Additive Manufacturing (AM), or 3D printing, to produce high surface area advanced material composites to rapidly prototype sustainable environmental solutions for aquatic nuisance species control. This innovative research explores deployment of 3D-printable polymer composite structures containing nano-scale photocatalysts for targeted open water treatment of HABs that are customizable to the site-of-concern and also retrievable, reusable, and sustainable. The approach developed to control cyanobacteria HAB events has the potential to augment or replace broadcast, non-specific chemical controls that otherwise put non-target species and ecological resources at long-term risk. It can also augment existing UV-treatment HAB treatment control measures. The expected research outcome is a novel, effective, and sustainable HAB management tool for the US Army Corps of Engineers (USACE) and resource managers to deploy in their HAB rapid response programs. The research will provide a framework for scale-up into other manufacturing methods (e.g., injection molding) to produce the devices in bulk (quickly and efficiently). Research for this project title “Mitigation of Harmful Algal Bloom Toxins using 3D Printed Photocatalytic Materials (FY21-23)” was sponsored by the US Army Engineer Research Development Center’s (ERDC) Aquatic Nuisance Species Research Program (ANSRP).
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