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Dissertations / Theses on the topic 'Plastic injection molding machine'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Goussard, Charl Leonard. "Design analysis of a lomolding machine." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019.1/1199.

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2

Vrána, Petr. "Technologie výroby plastového dílce světlometu automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231473.

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Diploma thesis which is developed for the master’s degree program (M2I – K Mechanical engineering) presents a proposal solution for production technology plastic car headlins parts from polymer material PBT GF30. Literature review summarizes the findings of thermoplastic injection technology and the structural design possibility of injection molds. The paper examined two variants of the running system, which are suitable for production of injection molding components. Finaly, after technical - economic assessment, we came to the conclusion that the better option is to use the hot runner system

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3

Ličko, Ľubomír. "Zařízení pro vstřikování plastů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241717.

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This thesis is focused on design of equipment for injection molding. The work discusses current state of technology for injection molding. In the work is conducted structural design of horizontal injection press for plastics processing with horizontal closing movement. Injection molding machine is designed to form the parting plane of maximum dimension 350 x 350 mm.

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4

Brhel, Michal. "Technologie výroby tělesa konektoru z recyklátu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241178.

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Study developed during the Master's degree studies of Mechanical Engineering deals with the use of recycled plastic in the injection molding and its influence on the mechanical properties of the mold. Examined product is used in the automotive industry as a connector body. The housing is manufactured from a plastic material, polyamide. The annual production volume of 3 000 000 pieces. According to tests specified in standard USCAR2 regrind influence on mechanical properties and dimensions was evaluated. After the technical evaluation of the project, research was also judged from economic point

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5

Otevřelová, Eliška. "Design plně elektrického vstřikovacího lisu s uzavírací silou do 100 tun." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417141.

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This thesis deals with designing an injection molding machine. The design concept is focused on a fully electric-powered machine with a clamping force up to 100 tons. The work analyzes the current market and products. The main goal of the thesis is to solve aesthetic and technical deficiencies that were found during research.

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6

Ulrich, Josef. "Optimalizace technologických parametrů vstřikování plastového dílce." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231262.

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This thesis describes the optimalization of technological parameters during commissioning of injection mold manufacturing. In the introduction, there is general literary studies of plastics, injection molds, injection holding machine, injection holding technology and their effect on quality. The practical part includes an analysis of current state, calculation of injection parameters, moldflow analysis and sampling on the machine. Finally, there is choice of optimal injection holding parameters, design of workplace and technical-economic evaluation.

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7

Adamiec, Pavel. "Návrh technologie výroby svorkovnice přístroje z plastu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229918.

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The master thesis deals with design to produce terminal using the plastic injection molding. In the first part are theoretical information about injection molding and injection molding with inserts. The second part is a concrete design of production terminal which contains: injection mold design, calculation of the injection parameters, machine selection, technical and economic evaluation of production. Terminal is made of polyamide 66, inserts material is brass. Parts of injection mold assembly are selected from Hasco standards. The main parts of assembly are made of 1.2312 steel. Production

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8

Dawson, Evan Kent. "The effect of rapid tooling on final product properties." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/11189.

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9

Urs, Shravan B. R. "SCHEDULING ROTARY INJECTION MOLDING MACHINE." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1132529304.

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10

Farrar, P. T. K. "Plastic injection moulding machine controllers." Thesis, Bucks New University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378918.

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11

Rios, Erick E. "Design and manufacturing of plastic micro-cantilevers by injection molding." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/18888.

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12

Hamilton, Jordan David. "Fabrication and analysis of injection molded plastic microneedle arrays." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39481.

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This thesis describes the fabrication of plastic microneedle devices, their fabrication by injection molding, and analysis of the penetration mechanics. Injection molding is an economical mass-production technique that may encourage widespread adoption of microneedles for drug delivery. Four polymers were injection molded into hexagonal and square patterns of between 91 and 100 needles per array. The patterns and geometries were chosen to study the effect of needle spacing and array design on penetration force. Two needle spacings of approximately 1 mm and 1.5 mm were employed for both patter

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13

Fostock, Ziad. "QCM Sensor Chip : – Construction of plastic parts for injection molding." Thesis, KTH, Maskinkonstruktion (Inst.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100017.

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I augusti 2007 tillfrågades författaren av Attana AB om han kunde konstruera dennes QCM-sensorchip för formsprutning som en del av hans examensarbete inom industriell design. Examensarbetet innefattade de två plastdelarna som utgör hölget av sensorchipet. Ytterliggare skulle en ny konstruktionslösning som underlättar montering av sensorchipet föreslås, en given plats för identifikationsmärkning av sensorchipet skulle implementeras och den estetiska aspekten av designen skulle slutföras inom ramarna av arbetet. Arbetsprocessen innebar ett tvärdisciplinärt uppdrag som ingenjör, designer och proj

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14

Bartlett, Leah Paige. "A Preliminary Study of Using Plastic Molds in Injection Molding." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1509440406290043.

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15

Bazel, Teresa L. (Teresa Lorraine) 1965. "Process optimization of plastic injection molding for minimal residual stress." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9762.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.<br>Includes bibliographical references (p. 67-68).<br>This thesis summarizes the progress made in developing a procedure to optimize a plastic injection molding process by minimizing the dimensional instability of a critical feature. It documents the steps taken by a development team at the Visteon facility in Belfast, Northern Ireland to apply Design of Experiments (DOE) in process research for the production of a plastic

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16

錢桂生 and Kwai-sang Chin. "An expert product development system for plastic injection moulding parts." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31234732.

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17

Kim, Hoyeon. "Fabrication and Analysis of Plastic Hypodermic Needles by Micro Injection Molding." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5221.

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This thesis explores the analysis and fabrication of plastic hypodermic needles. The hypotheses for this work are that replacing metal hypodermic needles with plastic ones will reduce or eliminate the possibility of the second-hand infections from needle sticks and unsterlized reuse and will be more cost and time efficient to recycle. The most critical structural failure mode for plastic needles is buckling due to their shape (thin walled hollow column). The consideration of buckling is critical to avoid structural failure and to ensure reliability for medical applications. The buckling streng

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18

James, Sagil. "A Plastic Injection Molding Part Feature Extractor and Design Advisory System." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1267795491.

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19

Ting, Huang, and Nordqvist Daniel. "Design and manufacturing of SLM printed tooling for plastic injection molding." Thesis, Jönköping University, Tekniska Högskolan, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-54170.

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The thesis work is to show that the use of SLM (Additive Manufacturing) compared with the traditional process to make injection molds will have advantages in design, especially in waterways. This thesis work gives seven different versions of design applied to the SLM method to analyze and compare them in Solidworks® and Moldflow® to figure out what design is suitable for the SLM method. Through analysis of different versions, the finding of this thesis work is that the conformal waterway of design and lighter but stead structure in the SLM method causes the SLM molds' cooling performance to b

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20

Chin, Kwai-sang. "An expert product development system for plastic injection moulding parts /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17545857.

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21

羅亦承. "Study of Energy Saving System for Plastic Injection Molding Machine." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/18194225971051436714.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>98<br>Abstract The main power consumption source of the injection machine of traditional plastics has four major parts. They are oil pump, control system, cooling system and heating system. The oil pump consumes 75% of power consumption of the molding plastics machine. This study analyses energy-conservation of the oil pump of the plastics injection machine, because hydraulic transmission technology has high torque and well adjustability of working pressure and flow. As know, traditional hydraulic transmission needs several times of energy conversion, leading to hig

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22

Han, Zheng Cheng, and 韓正誠. "The research of AC servo motor drived plastic injection molding machine." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/08572965406630036121.

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23

Lin, Chin-Wen, and 林慶文. "Plastic Injection Molding Machine Temperature Controller Design Based on System Identification." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/33278785145669159513.

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碩士<br>國立臺灣科技大學<br>自動化及控制研究所<br>104<br>The temperature control of injection machines is generally achieved by using an auto-tuning PID controller. However, auto-tuning may not meet the industrial demand in some situations. Therefore, it is necessary to switch to manual adjustment, but it will take more time and use more plastic materials. The major objective of this thesis is to establish a mathematical model of an injection machine by applying system identification, which is implemented by the commercial software Matlab System Identification Toolbox. Based on the establish model, a controller

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24

Huai, En Kao, and 郜懷恩. "Modeling and Injection Velocity Control of an Ultra High-Speed Plastic Injection Molding Machine." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/80947967305921916149.

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碩士<br>國立中興大學<br>電機工程學系<br>93<br>With the expanding growth of so-called 3C (computer. communication and comsumer) industry, many 3C products with very thin thickness have become increasing important for the industry. These high-quality products have been manufactured by ultra high-speed injection molding machines, not only for high yield rate but also for high profits. This thesis aims to develop techniques for modeling and injection speed control of an ultra high-speed plastic injection molding machine. Several rules and guidelines are proposed to select key compents of hydraulic servo valve

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"Intelligent e-monitoring of plastic injection molding machines." 2004. http://library.cuhk.edu.hk/record=b5891849.

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Lau Hau Yu.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2004.<br>Includes bibliographical references (leaves 79-83).<br>Abstracts in English and Chinese.<br>Abstract --- p.i<br>Acknowledgements --- p.iv<br>Table of Contents --- p.vi<br>Chapter Chapter 1: --- Introduction --- p.1<br>Chapter 1.1 --- Background --- p.1<br>Chapter 1.2 --- Objective --- p.4<br>Chapter Chapter 2: --- Literature Survey --- p.6<br>Chapter 2.1 --- Plastic Injection Molding Process --- p.6<br>Chapter 2.2 --- Monitoring and Diagnosis Methods --- p.10<br>Chapter 2.3 --- Remote Monitoring --- p.12<br>Ch

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26

Giron, Alvaro Enrique Avila, and 齊龍. "Optimization Design of a Toggle Clamping System on Plastic Injection Molding Machine." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/c438c3.

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碩士<br>崑山科技大學<br>機械工程研究所<br>97<br>In this thesis a Toggle System on an Injection Molding Machine is studied with the purpose to optimize the original design. Nowadays, in this global world, efficiency is needed in all the production processes, less time of execution, higher speed, increases the demand of high performance machines. The Toggle is a mechanical device used to amplify force. The mechanical advantage can be high up and for a relatively small force from the driving cylinder develops a large clamp force. Setting and holding the precise clamping force on injection molding machi

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蘇寶明. "Control system design and implementation of a hydraulic plastic injection molding machine." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/73797738837733808303.

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碩士<br>國立中興大學<br>電機工程學系<br>92<br>This thesis develops methodologies and techniques for mechatronic design, controller synthesis and a DSP-based implementation of a hydraulic plastics injection-molding machine. This proposed controller includes hydraulic actuation, adaptive predictive PID control, development of a cost-effective TI TMS320F2812 DSP controller with required interfacing circuits, and a complete printed circuit board. A top-down systematic design strategy is adopted to design the controller based on the system specifications and control performance. After choosing appropriate hydrau

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28

Chen, Hai-Chin, and 陳海清. "The Analysis for Statistical Process Control System of Plastic Injection Molding Machine." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/784334.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>95<br>Under traditional management, it needs person(s) to monitor, record, and analyze the production efficiency information. There''s no immediate treatment when production or quality abnormality occurs, and problems can only be solved afterwards. Thus, it lacks of efficiency and hard to obtain accurate solutions at once. Production line efficiency can be improved by combining production management information and online mold injection information. Using the latest mold injection remote monitor/control technology, the users not only can monitor current producti

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Liu, Yi-Shen, and 劉益伸. "The Development of the Plastic Injection Molding Machine Industry in Taiwan：Push and Pull Perspective." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/80783844196404706440.

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碩士<br>靜宜大學<br>管理碩士在職專班<br>99<br>Since 1945, Plastic injection molding machine industry in Taiwan, began by means of maintenance and copy import machinery , gain experience and with reference to foreign information and experience derived from the self-learning and technology fully used in R & D and production, and thus settle the order in Taiwan Plastic injection molding machine industry, a solid foundation; With the rapid take-off the domestic economy, as well as the wide range of industrial product applications, the demand for plastic injection molding machinery growing. In the development p

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Lin, Hung-Ting, and 林鴻庭. "Investigation on the Maintenance Service and Workflow Management of the Plastic Injection Molding Machine." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/22204550224904551203.

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碩士<br>國立中興大學<br>機械工程學系所<br>94<br>Abstract The industry is upgrading constantly in recent years, research and development ability and assembling the progressing greatly of technology, make the function and quality of product design all seem very close , in the face of competition pressure of market, every enterprise invariably in order to produce '' low cost , high quality '' product goal. The injection molding machine is to use the most extensive one in industry''s machinery that the plastics penetrate , the factory will give consideration to quality in order to every demand for according with

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Huang, Kuo-Wei, and 黃國維. "The Development of Plastic Injection Molding Machines in the Footwear Industry - Using EVA Machine as an Example." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/2nxkwg.

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碩士<br>國立中興大學<br>高階經理人碩士在職專班<br>101<br>Abstract Footwear industry is a labor-intensive industry and automation has been a common goal of footwear brand corporations, OEM manufacturers, and machinery suppliers. Footwear automation equipment, in the past, had been dominated by the European machinery industry. Taiwan''s EVA injection molding machine technology has gradually overtaken Italian counterpart to become the market leader and the choice of automation equipment of the shoe industry. Challenged by changing shoe industry settings, the competitive threats of Mainland China&apos

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Ku, Kai-Ming, and 古凱銘. "A Study on Feeding and Back Pressure Control for All-electric Plastic Injection-molding Machine." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76967544994747817798.

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碩士<br>國立高雄第一科技大學<br>電機工程研究所碩士班<br>103<br>Plastic injection molding machines have gradually developed from the hydraulic type to the all-electric type. Their operations mainly include mold opening/closing, injection/pressure holding, and feed-in backpressure phase. This study mainly focuses on the performance improvement in the feed-in backpressure phase of an all-electric injection molding machine. For in-depth investigation of the features of this phase, this study established a dynamic model of the complete feed-in backpressure process. Meanwhile, the suitability of this model has been verif

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Chen, Mao-Chang, and 陳茂昌. "Application of TRIZ to solve design contradictions of plastic injection molding machines." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/82131780209331986118.

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碩士<br>逢甲大學<br>工業工程與系統管理學研究所<br>99<br>Plastic injection molding machines have the important position in the Machine Tools industry that performs batter by the decisions from the design useful or harmful. But it generally creates contradiction questions during the process of design. So we need a effective problem-solving method. TRIZ is a effective method of contradiction problem-solving following by the period time of design. The object of study uses IWB software which is coming from TRIZ theory and the concept of contradiction of solving the new innovative problems by Altshuller deal with the

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Wang, Po-Hsun, and 王伯壎. "Application of Quality Functional Development on Developing Plastics Injection Molding Machine." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/mk4s2h.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>95<br>In the competitive environment, satisfying customers’ requirements is the best way to get succeed. Quality Function Development (QFD) is an important method that integrates external market demand and internal product manufacturing processes. By taking plastics injection molding machine an example, this study discusses how to use QFD to develop new product and to satisfy the customers’ requirement, therefore raises the competitive advantage of the company. In the meantime, this research also investigates the business how to build KM processes and knowledge

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Chen, Jen-Te, and 陳仁德. "A Study on the Holding Pressure & Feeding Back-Pressure Control for Hydraulic Plastic Injection Molding Machine." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/s8x8eb.

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碩士<br>國立高雄第一科技大學<br>電機工程研究所碩士班<br>105<br>In the injection molding process, the injection pressure, the injection velocity, the injection temperature, the clamping force, the feeding quantity and other factors will have influence on the quality of the injection molding. In order to study the complicated forming characteristics, firstly, we establish the molding process model to understand the dynamic behavior of the plastic injection molding operation. The established model can be further verified with the real machine to ensure the control design. In this research, we study the control perform

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Wang, Pai-Hung, and 王佰鴻. "Statistical Process Control Utilized for the Final Inspection of Plastic Injection Molding Machines." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/3c56px.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>96<br>Abstract Due to high competition of global economic markets, domestic markets getting saturated, … etc., export-trading markets have being economic main force of Taiwan. Also, between middle and low level plastic injection molding machine manufacturers, the enterprise competition pressure, such as lower price impacts in India, Korea, and China; and gradually-raised material price, has caused awkward situation among enterprise markets. Even though lowering costs by focused on demanding market, and building factories on opposite bank, still unable to depart

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Hung-Yung, Chiu, and 邱宏勇. "CRM study for one plastic injection molding machinery manufacturer-Towards a KM Perspective." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/72075896565726624051.

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碩士<br>南台科技大學<br>工業管理研究所<br>94<br>Recently, the industry faces the competition of global market, so it is important to build up good relationship with customers. On the other hand, the customer knowledge management is the managerial activity that manages the knowledge about customers in order to establish marketing strategy and to improve the satisfaction of customers. There are more companies pay attention to CKM. Taking plastics injection molding machinery manufacturer enterprise as an example, this research firstly adopts interview to identify the CRM strategy. Moreover, the questionnaire is

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Wu, Dai Yu, and 吳岱諭. "Effect of Lubricants on the wear of toggle mechanism of plastics injection molding machine." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/cwxu49.

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碩士<br>國立虎尾科技大學<br>機械與機電工程研究所<br>96<br>Plastic injection molding machine is one kind of hydraulic machine. Its power is generated by one hydraulic system. Electrical motors drive pumps to deliver hydraulic fluid in one tank to hydraulic elements, then the hydraulic elements guide the hydraulic fluid to action points of the machine, and finally the machine gets to work. This research is focused on the toggle axis abrasion of clamp structure of plastic injection molding machine. If one plastic injection molding machine runs for long time, and the lubrication of toggle structure is ignored, there

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Dymond, Jacques Andrew Dryden. "The simulation of the flow of polymer melt in lomolding." Thesis, 2004. http://hdl.handle.net/10019.1/16318.

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Thesis (MScIng)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Lomolding is a new process similar to injection moulding. In this thesis a numerical model of the polymer flow into the cavity is presented. The model is used to compare the two processes with each other. Lomolding and injection moulding were modelled numerically with the finite element method. The model was an axisymmetric model and takes phenomena such as generalised Newtonian flow, free surfaces, moving boundaries and solidification into account. The processes’ characteristics that were compared are the cavity pr

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Wu, Chen-Wei, and 吳振維. "Disposable Injection-Molding Plastic Electrode." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/09915866249609238617.

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宋坤方. "Injection Molding Plastic Chairs Round Iron Seat." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/10950355200871663294.

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碩士<br>建國科技大學<br>自動化工程系暨機電光系統研究所<br>100<br>Human civilization began in stone, wood era, and then progress to the use of iron, copper and other metals, then a striking progress in the invention of glass and other metals, until the emergence of plastic materials. Plastic is a panacea, it was once said, "The twentieth century is the century of plastic, plastic is an integral part of our daily lives that it has integrated into all aspects of food, clothing, shelter, education, music, new plastic era is finally coming to the Ting students, scientists continue to research and development, the plastic

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Su, Meng-hung, and 蘇孟鴻. "Plastic Injection Molding Machine:Art Production in Capitalism." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/83664827219266778158.

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博士<br>國立臺南藝術大學<br>藝術創作理論研究所博士班<br>100<br>This paper "plastic injection molding machines" may be discussed as a creative subject, mainly related to the ontology of the artist, and highlight some kind of "duality": (undercover) double agent. Such a position assumes that the artist still have artistic freedom and the spirit of revolutionary rebellion, but it must be in-depth enemy camp to the identity of "artist" for a living. The discussions included the situation of the artist in capitalism and mentioned the technology of both the theory and practice of artistic creation. Besides, how the artis

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Lin, Yu-Yun, and 林毓源. "The Study of Injection Molding Machines with Automatic Metal and Plastics Integration." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/89480250308108637384.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>100<br>The study proposes an injection molding machine to integrate metal and plastic by automatically circulating injection and molding process. The main part of the injection molding machine is to equip a feeder and a discharger on the side of the working table. After locating few sets of molds on the working table, the first, second, third and fourth pneumatic cylinders equipped on the corners of working table sequentially move these molds into feeder to embed nails. These molds are then molded in the injection machine and moved into discharger to cut waste mater

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Tsai, Lang-Fu, and 蔡浪富. "Characteristics of Injection Pressure for Injection Molding Machine." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/53129583051230886111.

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Chang, Guang Rong, and 張光榮. "Process Control of Injection Molding Machine." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/47108995807662636986.

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Ching-Min, Yeh, and 葉清民. "The minimal warpage design in plastic injection molding." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/49889590955686018483.

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碩士<br>國立高雄應用科技大學<br>模具工程系碩士班<br>94<br>The objective of this paper is to present a methodology for minimal warpage design of effective factor in plastic injection molding when a thin plate is produced. Many effective factors induce the warpage of the injection parts, such as sink marks, shrinkage, warpage and so on. However, the warpage of the produce is an important issue in the injection mold design. In this paper, a modified Newton-Raphson method is used to determine the injection molding conditions to reduce the warpage of the product. The design process of injection-molded includes the

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Wei, Lun-Chun, and 魏綸群. "Optimization Design for Plastic Injection Molding Process Time." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/81133515150351451668.

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碩士<br>元智大學<br>機械工程學系<br>96<br>This paper demonstrates the result of using fuzzy PD　controller optimization engine to the plastics injection manufactory process under product quality constraints. Because of the difficulty in expressing the product quality explicitly in terms of design variables, traditional numerical optimization algorithm is hard to be used to solve plastics injection optimization problem with product quality constraints. The fuzzy PD controller optimization engine is developed to deal with the engineering design problems with two characteristics: (1) the design variables are

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Wang, Shi-Hao, and 王世豪. "Analysis of Plastic Box for Injection Molding Process." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/fej5ur.

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碩士<br>國立虎尾科技大學<br>機械與電腦輔助工程系碩士班在職專班<br>100<br>Injection molding technology is popular due to its convenient to be implementation for mass production. An excellent molded part can be achieved through a correct mold design and optimal molding parameters. However, it is usually difficult to predict the molded part quality without suitable tools. In this work, a box consists of a cover and a base was molded in the same mold. Due to the different volume of each component of the box, a runner balance technology is used to make the filling pattern inside the mold balanced using Autodesk Moldflow. An

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Tien, Phan Diep Duc, and 潘葉德進. "Study of Injection Pressure Response for Injection Molding Machine." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/19481522549688950442.

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碩士<br>國立高雄應用科技大學<br>機械與精密工程研究所<br>96<br>In an injection molding machine the injection pressure is the key parameter required for the injection molding process. This thesis applied simulation model to obtain the injection pressure at the nozzle. The simulation aimed at saving time and money in comparison to the conventional methods. A study on injection pressure was carried out and programs were written in Matlab to develop and simulate the response of nozzle pressure. However, the study of injection pressure was considered in the injection stage of the injection molding process. Studying the i

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Chang, Cheng-Hsiung, and 張政雄. "Cavity Dynamic Pressure on the Injection Molding Plastic Parts." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/uy7z94.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>98<br>3C products are assembled by more than two of plastic parts, such as computers, communication devices, and electronic consumers, etc. If an over-large shrinking deformation exists in the plastic part, it will affect the product assembly and aesthetics. Although many factors affect on the injection molding condition, the change of cavity pressure just plays a key role on the plastic parts shrinking deformation. Injection molding is a cyclic process consisting of filling, melt compressing, holding, and cooling. The different pressures reflected on each stage, a

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