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Dissertations / Theses on the topic 'Vacuum process'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Al, Omari Ali. "Effect of vacuum level on the vacuum-assisted resin transfer molding process." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0002/MQ43656.pdf.

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2

Capps, Johnathon. "Advancements in vacuum process molding and casting." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/CAPPS_JOHNATHON_6.pdf.

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3

Correia, Nuno André Curado Mateus. "Analysis of the vacuum infusion moulding process." Thesis, University of Nottingham, 2004. http://eprints.nottingham.ac.uk/12762/.

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This thesis focuses on flow through compliant porous media with applications to the manufacturing of composites by vacuum infusion (VI). The context of this work is the need for reliability in environmentally friendly composite processing methods for composite materials. Commercial reality and the prospective application to low cost structures for the transportation industry dictate that appropriate emphasis should be put on obtaining robust simulations, ensuring reliability and progressing toward efficient means of process control. In this context, the open mould manufacturing processes which

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4

Rabe, Richardt Coenraad. "A model for the vacuum pyrolysis of biomass." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/1675.

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Thesis (MScEng (Process Engineering))--University of Stellenbosch, 2005.<br>Biomass is a significant renewable energy source and much research is currently being done to enable the production of biofuels and chemicals from biomass. This study looks at vacuum pyrolysis, a technology which has the potential to turn biomass, amongst other waste materials, into commercially valuable commodities. Vacuum pyrolysis is the thermal degradation of a feedstock in the absence of oxygen and under low pressure, to produce a bio-oil and char as main products, together with water and non-condensable gases. B

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5

Wani, Nitin Yashwant. "Simulation of thermal stresses in vacuum arc remelting process." Ohio : Ohio University, 1995. http://www.ohiolink.edu/etd/view.cgi?ohiou1178820121.

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6

Hayadar, B. "The process design of liquid ring pumps for vacuum duties." Thesis, University of Manchester, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488225.

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7

Uras, Umit. "Biochar from vacuum pyrolysis of agricultural residues : characterisation and its applications." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18011.

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Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: According to recent studies, biochar has the potential to improve soil fertility, mitigate climate change, reduce off-site pollution and assist in managing wastes. The application of biochar to soil is not a new concept; Amazonian dark earths are carbon-rich soils with high soil fertility that were created before 1541. Vacuum pyrolysis is a thermo-chemical conversion technique in which biomass is transformed into bio-oil, biochar and non-condensable gas. The objective of this work was to investigate the chemical and physical

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8

Tsuchiya, Kenji, Hitoshi Okubo, Tsugunari Ishida, Naoki Hayakawa, and Hiroki Kojima. "Development Process of Impulse Surface Flashover on Alumina Dielectrics in Vacuum." IEEE, 2011. http://hdl.handle.net/2237/20729.

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9

Yusuf, Md Afendi M. "A study of bubble free epoxy resin for vacuum infusion process." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424242.

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10

Modi, Dhiren. "Modelling and active control of the Vacuum Infusion Process for composites manufacture." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/10420/.

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Vacuum infusion technology, even though first reported more than 50 years ago, was not popular for mainstream fibre reinforced polymer composites manufacturing until recently. Its present-day popularity is due to the increasing emphasis on the manufacturing cost as well as environmental and health concerns. As a result, novel processes such as Vacuum Infusion (VI) and Seemans' Composite Resin Injection Moulding Process (SCRIMPTM), employing the same basic technology, have been developed. As latecomers, these processes have not been investigated in detail and there exists a lack of understandin

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11

Sayre, Jay Randall. "Vacuum-Assisted Resin Transfer Molding (VARTM) Model Development, Verification, and Process Analysis." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/27034.

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Vacuum-Assisted Resin Transfer Molding (VARTM) processes are becoming promising technologies in the manufacturing of primary composite structures in the aircraft industry as well as infrastructure. A great deal of work still needs to be done on efforts to reduce the costly trial-and-error methods of VARTM processing that are currently in practice today. A computer simulation model of the VARTM process would provide a cost-effective tool in the manufacturing of composites utilizing this technique. Therefore, the objective of this research was to modify an existing three-dimensional, Resin Film

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12

Dlugogorski, Bogdan Zygmunt. "The treatment of vacuum distilled residue from the canmet process in argon/hydrogen plasmas /." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55592.

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13

Nie, Xueyuan. "Process and property effects in hybrid/duplex plasma treatments using vacuum deposition and electrolysis." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322366.

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14

Blanden, Zachary F. "Process development for high powered amplifier Au/Sn eutectic die attach via vacuum furnace." Thesis, State University of New York at Binghamton, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10250174.

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<p>This research was conducted to develop and qualify a vacuum GaAs semiconductor monolithic microwave integrated circuit die attach process. Research was done to understand the causes and effects of voiding levels on device performance and reliability. Simultaneous investigation was done to qualify vacuum-attach as a successful methodology by which minimal voiding levels were achieved. After an initial vacuum-attach trial was completed to verify the methodology, internal accept/reject criteria were developed to qualify die attach interfaces. A dual phase attachment methodology was created to

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15

Grimsley, Brian William. "Characterization of the Vacuum Assisted Resin Transfer Molding Process for Fabrication of Aerospace Composites." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/36062.

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This work was performed under a cooporative research effort sponsored by the National Aeronautics and Space Administration (NASA) in conjunction with the aerospace industry and acedemia. One of the primary goals of NASA is to improve the safety and affordability of commercial air flight. Part of this goal includes research to reduce fuel consumption by developing lightweight carbon fiber, polymer matrix composites to replace existing metallic airframe structure. In the Twenty-first Aircraft Technology Program (TCAT) efforts were focused on developing novel processing methods to fabricate tailo

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16

Beresnev, V. M., O. V. Sobol’, Олександр Дмитрович Погребняк, et al. "About Peculiarities of the Influence of the Negative Bias Potential Applied to the Substrate During the Deposition Process on the Structural State and Properties of the Multilayer system MoN-CrN." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42799.

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Applying transition metal nitrides of Mo and Cr, which are characterized by a relatively low heat of formation, as the components of the multilayer coating, the possibilities of elemental and structural engineering of vacuum-arc coatings under the influence of the bias potential Us and the reaction gas pressure PN are revealed. It was found that at a relatively small thickness of the layers of nanometer range, which provides superhard state of the coatings, the supply of Us with the value of above the critical leads to a drop in hardness, which can be explained by mixing of layers at the inter

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17

Beh, Christopher Chun Keong. "Vacuum swing adsorption process for oxygen enrichment : a study into the dynamics, modelling and control." Monash University, Dept. of Chemical Engineering, 2003. http://arrow.monash.edu.au/hdl/1959.1/9533.

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18

McGrane, Rebecca Ann. "Vacuum Assisted Resin Transfer Molding of Foam Sandwich Composite Materials: Process Development and Model Verification." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/42108.

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Vacuum assisted resin transfer molding (VARTM) is a low cost resin infusion process being developed for the manufacture of composite structures. VARTM is being evaluated for the manufacture of primary aircraft structures, including foam sandwich composite materials. One of the benefits of VARTM is the ability to resin infiltrate large or complex shaped components. However, trial and error process development of these types of composite structures can prove costly and ineffective. Therefore, process modeling of the associated flow details and infiltration times can aide in manufacturing des

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19

Huan, Junjun. "Wafer-Level Vacuum-Encapsulated Ultra-Low Voltage Tuning Fork MEMS Resonator." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1493253273171541.

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20

Bagheri, Mehdi. "Computer-aided study of Vacuum-UV/UV process for removal of organic pollutants from water supplies." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/57463.

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Water authorities are increasingly worried about the occurrence of organic micropollutants (e.g., algal toxins, endocrine disrupting compounds, pesticides, industrial chemicals, taste and odor compounds) in water supplies. Removal of organic micropollutants (OMPs) from water is cost-prohibitive, particularly for small and remote communities. Vacuum-UV/UV process, an incipient catalyst/chemical-free advanced oxidation process (AOP), is potentially a cost-effective solution for removal of harmful micropollutants from water. The main objective of this thesis was to investigate the feasibility o

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21

Uppalapati, Balaadithya. "Design and Analysis of Wafer-Level Vacuum-Encapsulated Disk Resonator Gyroscope Using a Commercial MEMS Process." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1510764485530995.

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22

Duca, Clara. "Effect of water matrix on Vacuum UV process for the removal of organic micropollutants in surface water." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/52252.

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UV-based advanced oxidation processes (UV-AOPs) have been demonstrated as effective technologies for the removal of micropollutants in water. One promising UV-AOP is Vacuum UV (VUV), which relies on the formation of hydroxyl radicals (HO•) by the photolysis of water induced by VUV photons. TiO₂/UV photocatalysis is another promising AOP. Both VUV and UV photocatalysis are greatly affected by the water matrix, inorganic ions and natural organic matter (NOM). Water constituents can absorb the UV and VUV radiations, they can act as HO• radicals scavengers, and can produce radicals when photolyzed

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23

KURIMOTO, Shinji, Kenji HIROTA, Daisuke TOKUMOTO, and Toshihiko MORI. "Improving High Precision and Continuous Process of Ultra-Fine Piercing by SiC Fiber Punch." The Japan Society of Mechanical Engineers, 2004. http://hdl.handle.net/2237/9036.

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24

Pineda, Rocio Nahir. "Biocomposite with Continuous Spun Cellulose Fibers." Thesis, Luleå tekniska universitet, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80968.

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The subject of this project is to study spun cellulose fibers made by Spinnova Oy inFinland. The fibers are spun using an environmentally friendly spinning process withoutuse of harsh chemicals.The spun filaments and the yarn based on these filaments were characterized and usedas reinforcement in polylactic acid biopolymer (PLA) and in biobased epoxy resin. Acomprehensive mechanical and morphological characterization of the single filamentsand their yarn was conducted. It was found that the single filaments are flat with a largewidth/thickness ratio, they are porous especially on one side and

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25

Robinson, Marc J. "Simulation of the vacuum assisted resin transfer molding (VARTM) process and the development of light-weight composite bridging." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2008. http://wwwlib.umi.com/cr/ucsd/fullcit?p3336692.

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Thesis (Ph. D.)--University of California, San Diego, 2008.<br>Title from first page of PDF file (viewed January 9, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 482-492).

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26

Serrano, Mora Adrian. "UV/Vacuum-UV Advanced Oxidation Process for the treatment of micropollutants from drinking water sources under common operational temperatures." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57667.

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Vacuum-UV Advanced Oxidation Process (AOP) has been identified as a viable candidate to treat chemical contaminants in drinking water. In contrast to the commercially available and widely applied UV/H₂O₂ AOP, VUV AOP does not rely on the addition of chemicals for the generation of hydroxyl radicals. As a result, the technology is very appealing to small systems and rural communities which often lack infrastructure and qualified personnel to operate complex systems. The primary objective of this research was to investigate the effect of temperature on the removal efficiency and energy consump

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27

Polton, Richard. "Numerical grid generation and its application in the solution of a model of the Vacuum-Arc Remelting (VAR) process." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323918.

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28

Silveira, Arlan Caldas Pereira. "Thermodynamic and hydrodynamic characterization of the vacuum evaporation process during concentration of dairy products in a falling film evaporator." Universidade Federal de Viçosa, 2015. http://www.locus.ufv.br/handle/123456789/7761.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2016-06-02T09:42:25Z No. of bitstreams: 1 texto completo.pdf: 6171733 bytes, checksum: 53c1338fade79e4659635416cb39c199 (MD5)<br>Made available in DSpace on 2016-06-02T09:42:25Z (GMT). No. of bitstreams: 1 texto completo.pdf: 6171733 bytes, checksum: 53c1338fade79e4659635416cb39c199 (MD5) Previous issue date: 2015-10-12<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Os evaporadores de película descendente (EPD) são amplamente utilizados nas indústrias químicas, de refrigeração, de refino de petról

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29

Larsson, Veronique. "Procurement of the vacuum waste collection systems : The cases of Hammarby Sjöstad and Stockholm Royal Seaport." Thesis, Stockholms universitet, Kulturgeografiska institutionen, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-91410.

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30

Miskbay, Onur Adem. "Process Characterization Of Composite Structures Manufactured Using Resin Impregnation Techniques." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610351/index.pdf.

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The aim of this study is to investigate and compare the properties of two layer carbon epoxy composite plates manufactured using various resin impregnation techniques<br>Resin Transfer Molding (RTM), Light RTM (LRTM), Vacuum Assisted RTM (VARTM) and Vacuum Packaging (VP). Throughout the study a different packaging method was developed and named Modified Vacuum Packaging (BP). The mechanical properties of composite plates manufactured are examined by tensile tests, compressive tests, in-plane shear tests and their thermal properties are examined by Differential Scanning Calorimetry (DSC) and Th

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31

Umana, Blessing. "Integrating hydroprocessors in refinery hydrogen network optimization." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/integrating-hydroprocessors-in-refinery-hydrogen-network-optimization(cf9c2c68-7cff-48df-8afe-eee835d7b808).html.

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Effective distribution of hydrogen in refinery hydrogen networks is a major concern for refiners tackling the stringent specifications on maximum sulphur levels in middle distillates and the increasing global demand of diesel fuel. A major challenge is the implementation of a shift from conventional to ultra-deep methods of desulphurisation. Meanwhile, the capacity of secondary conversion processes such as fluid catalytic cracking (FCC) and hydrocracking in refineries has steadily increased in converting the bottom of the barrel into high-value lighter products resulting in increased levels of

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32

Klarner, Andrew Daniel. "Development of Mg-Al-Sn and Mg-Al-Sn-Si Alloys and Optimization of Super Vacuum Die Casting Process for Lightweight Applications." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1515083355012541.

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33

Nandakumar, Varun. "Process and Tool Design for the High Integrity Die Casting of Aluminum and Magnesium Alloys." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1409032627.

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34

Bonariol, Francesco. "Sizing of a packed stripping tower for seawater injection process and H2S abatement on an FPSO." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The purpose of this working thesis is to study and analyze in depth the sea water injection unit found upon an FPSO. In particular, attention is focused on the vacuum deaeration column used for the degasification of the seawater stream in two stages: the first, with a lower vacuum degree and the second with a higher vacuum degree. Moreover, this thesis studies the mass transfer operation, carrying out a profound dissertation of the mass transport phenomena, introducing the mass transfer equations and coefficients. This study has been developed because it is desired to size another stripp

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35

Kang, Young Jo. "Some aspects of non-metallic inclusions during vacuum degassing in ladle treatment : with emphasize on liquid CaO-Al2O3 inclusions." Doctoral thesis, Stockholm : Department of Materials Science and Engineering, (Materialvetenskap), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4288.

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36

Dindault, Chloe. "Development of coevaporated hybrid perovskite thin films for solar cells applications." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX079/document.

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Les pérovskites hybrides célèbrent cette année leurs 10e anniversaire dans le domaine du photovoltaïque. En plus de la progression inégalée des rendements des cellules solaires, les pérovskites ont des propriétés optoélectroniques ajustables et peuvent être fabriquées par des procédés bas coûts, ce qui en fait de sérieuses candidates pour les cellules solaires multijunctions. Le réseau cristallin caractéristique des pérovskites hybrides offre une certaine liberté, supportant l’introduction partielle de cations et d’ions halogénures multiples. L’ajustement de la composition d’un matériau pérovs

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37

Wilson, Sean. "Adsorption Separation of CO2 in Low Concentrations for Applications in Direct Air Capture and Excimer Gas Separation." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40561.

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The overall objective of this thesis is to evaluate the fundamentals of current low concentration CO2 separation technologies and to provide an alternate method using adsorption technology with existing as well as new adsorbents. Two different applications for the adsorption of CO2 are explored; Direct Air Capture (DAC) and excimer gas purification. The investigation of aerogels as possible adsorbent for these applications was also explored. The first application, DAC of CO2 using adsorbents, addresses climate change by reducing the amount of atmospheric CO2 levels that are directly correlat

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38

Bazzi, Ali, and Andreas Angelou. "Simulation of the anisotropic material properties in polymers obtained in thermal forming process." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Produktutveckling, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40792.

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In an attempt to improve the quality in finite element analysis of thermoformed components, a method for predicting the thickness distribution is presented. The strain induced anisotropic material behaviour in the amorphous polymers of concern is also taken into account in the method. The method comprises of obtaining raw material data from experiments, followed by a simulation of the vacuum thermoforming process where hyperelastic material behaviour is assumed. The theory of hyperelasticity that was applied was based on the Ogden model and implemented in the FE-software LS-DYNA. Material beha

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Björklund, Johan. "Thermodynamic Aspects on Inclusion Composition and Oxygen Activity during Ladle Treatment." Doctoral thesis, KTH, Tillämpad processmetallurgi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4673.

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Two industrial studies and one set of lab scale trials have been done. In addition, a theoretical study has been done. The main focus has been on non metallic inclusion composition during the ladle refining operation in industrial steel production. Sampling has been done together with careful inclusion determination. The inclusion composition is related to different variables. In the industrial trials samples have been taken at different steps during the ladle refining period. Steel and slag composition as well as temperature and oxygen activity have been determined. The thesis is based on fiv

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Venter, Cornelia. "Recovery of petrol vapour at a bulk storage facility." Diss., University of Pretoria, 2004. http://hdl.handle.net/2263/23524.

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Björklund, Johan. "A study of slag-steel-inclusion interaction during Ladle treatment." Licentiate thesis, KTH, Materials Science and Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4018.

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<p>The thesis is based on two supplements with two major objectives. In the first supplement equilibrium top slag-steel bulk and inclusions-steel bulk were investigated by comparison between calculated and measured oxygen activity values. This was done by applying different oxide activity models for slags combined with thermodynamic calculations. In the second supplement the inclusion composition is studied during the ladle refining process. The inclusion composition is related to top slag composition and other parameters during ladle</p><p>treatment.</p><p>The work was carried out by collecti

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Do, Hung-Yu, and 杜弘瑜. "The Study on Optimal Process for Vacuum Dry Equipment." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/10423345279969466079.

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碩士<br>中原大學<br>機械工程研究所<br>97<br>Abstract In the recent years, as the TFT-LCD industry grows rapidly, the current product is aimed at development of high quality, high efficiency and high contrast display. Hence, ways leading to product enhancement become the main goal to pursue. This paper shall investigate ways to use design of experiment (DOE) and RBFN (radial basis function network) method to find the optimized conditions for the pressure system serving to reduce pressure and dry on VCD equipment of the photo-resist spin coater, thus preventing photo-resist in the vacuum pump system from ge

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Ju, Dou-Ming, and 朱德銘. "Simulation of a Fractionated Vacuum Swing Adsorption Process for." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/68419417648072619934.

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碩士<br>國立中央大學<br>化學工程研究所<br>83<br>Pressure swing adsorption (PSA) is a process essentially consisting of cyclic steps, which are widely used for separation of gas mixtures through the utilization of adsorbents that have favorable selectivity for components of the gas mixtures. Vacuum swing adsorption (VSA) is a kind of PSA which operates below atmosphere pressure by using vacuum pump during the desorption step. A fractionated vacuum swing adsorption (FVSA) process that simultaneously produce

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Lin, Pol-Hen, and 林柏亨. "The manufacturing process Chinese bacon by vacuum osmotic dehydration." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/26517439424591133749.

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碩士<br>國立屏東科技大學<br>食品科學系<br>87<br>Curing is one of the most useful ways in traditional food preservation. It still exists many problems in manufacturing process, such as long treatment time and high curing temperature impair the quality of products unfavorable changes in flavor, texture. Processing variables, such as normal curing, vacuum curing, tumbling rate, and salt types were investigated their effects on belly. Results showed that the higher the salt concentration and curing temperature, the faster the osmotic rate. The higher the degree of vacuum and the rpm of tumbling rate,

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Ravli, Yagmur 1985. "Improved Vacuum Frying Process for High Quality Sweet Potato Chips." Thesis, 2012. http://hdl.handle.net/1969.1/148101.

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Vacuum frying is a promising method for preserving the desired color, texture, and flavor of products with high sugar content. Since most vegetables and fruits degrade when processed with traditional frying, vacuum frying is an excellent alternative to high temperature processing. However, in vacuum frying the product should be pre-treated before frying to obtain a better texture. The kinetics of oil absorption and oil distribution in sweet potato chips (total, internal, and surface oil content) was studied so that effectiveness of the de-oiling system could be established. An analysis of pro

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Chih-HuiChang and 張誌暉. "Investigation of CuInSe2/CuInSeS absorption layer by non-vacuum process." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/78902696942667604817.

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博士<br>國立成功大學<br>材料科學及工程學系<br>102<br>There are three topics would be discussed in this dissertation. The first investigation was synthesis of crystalline chalcopyrite semiconductor CuInSe2 nanostructures which were preparing by solvothermal route. Effects of reaction time, reaction temperature, solvent type, and reactant concentration were studied. The results show that through selective processing conditions, the phase, morphology, and dimensions of the obtained CuInSe2 nanostructures can be controlled. Second, the powder of single crystal CuInSe2, synthesized by previous process, was sint

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Gilpin, Mark. "Material characterisation for the modelling of the vacuum infusion process." Thesis, 2015. http://hdl.handle.net/10321/1724.

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Submitted in fulfillment of the requirements for the degree of Doctor of Engineering: Mechanical Engineering, Durban University of Technology, Durban, South Africa, 2015.<br>Vacuum Infusion (VI) and Resin Transfer Moulding (RTM) are liquid composite moulding processes used in the manufacture of components from composite materials. The composite material in this case consists of a resin matrix combined with fibre reinforcement. In both moulding processes, a dry reinforcement preform is placed in the mould cavity and a liquid resin is introduced, driven by a pressure differential. Two rigid surf

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Tseng, Chi Wen, and 曾麒文. "TRIZ-based Improvement Design for Wafer Vacuum Laminator Process Equipment." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/59449372772241555062.

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李燕昌. "Study of the process optimization used for PCB vacuum lamination." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/89499108013631834943.

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碩士<br>國立彰化師範大學<br>機電工程學系<br>95<br>Process optimization of vacuum lamination in the Printed Circuit Board manufacturing was studied using the Taguchi design of experiment method. Six control factors from the critical factor analyses and factory experience were evaluated to improve three key quality requirements in vacuum lamination. The standard Taguchi L8 orthogonal table was utilized for the experiment. The signal to noise ratio and interaction from all factors were studied to derive the optimized parameters for vacuum lamination. The optimal parameters can be identified by test analyses. W

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Behera, Biplab. "Selection of vacuum pressure and vacuum implication position during steel making through RH degasser for maximizing recirculation process." Thesis, 2018. http://ethesis.nitrkl.ac.in/9507/1/2018_MT_216MM2441_BBehera_Selection.pdf.

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Application of low carbon steel and ultra-low carbon (ULC) steel has been improved significantly in recent days in different field mostly in automobile industry for making the body parts of vehicle and also for making home appliances body. However, it is not so easy get steel at a level less than 20 ppm in ladle steel making, so many technologies are developed to get ULC steel from them like ladle vacuum degassing and Ruhrstahl Heraeus degassers are the most famous and popular amongst all of them. In RH degasser, by reducing the system pressure and by injecting inert ga

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