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This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet ...
Get Price2008-8-30 · The air-jet texturing turbulence in the nozzle disorientates the filaments, resulting a decrease in tenacity of the textured yarn. In addition to this, an excess yarn length due to yarn overfeed the individual filaments can form loops and therefore can be disorientated more easily. Table 4.
Get PriceAn existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using standard commercial nozzles, both air-jet and steam-jet textured yarns were ...
Get PriceFigure 1 . 1 :11Process Flow of Air-Jet Texturing (fundamentals of air-jet texturing- Figure 2 . 121Taslan IX jet nozzle with axial air flow[17] Dissatisfied with the poor performance of the Taslan IX nozzle, Du Pont decided to develop a new design with improved aerodynamics of the nozzle's inner surfaces.
Get PriceThe effects of air-jet texturing on the adhesion of technical polyester yarns were discussed in terms of changes in the yarn geometry and changes on the single fiber surfaces.
Get Price2002-6-1 · This study attempts to understand flow behavior inside texturing nozzles by computer simulation. The texturing degree and fluctuation number are calculated for different texturing …
Get PriceThe most widely quoted general description of the process is from Acar [16]. It has been reproduced below. “ When the overfed filaments enter the texturing nozzle, they are carried
Get PriceEffect of core-yarn overfeed ratio on loop density of the textured yarns Figure 4 shows that for both air-jet texturing and steam-jet texturing, loop density increases when the core-yarn overfeed ...
Get Price2019-10-15 · The properties of ceramics can be improved by controlling the microstructure through texturing ceramics in a strong magnetic field. Fabricating dense boron carbide (B 4 C) requires high temperature sintering, therefore sintering additives are often used in order to densify B 4 C ceramics at lower temperatures. However, combined effect of texturing and sintering additives on densification of …
Get Price2014-12-1 · Although most texturing process, the air-jet texturing process excepted, some sort of irregularity to the parallel arrangement of filament to enhance hand and optical properties, the resultant textured yarn still lacks of interfilament cohesion. Consequently several difficulties are observed during winding and fabric forming processes.
Get Price2012-3-26 · The nozzle was oriented perpendicular to the surface of the test specimen. With the test specimen fixed in a holder, the nozzle was moved and adjusted to obtain an appropriate nozzle-to-surface standoff distance, X (Figure 2). Table 1 listed the peening conditions. Number of passes and nozzle feed speed were varied to observe the effect of jet
Get PriceMenu. Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of Guidance, Control, and Dynamics
Get Price2015-4-8 · Air-jet texturing is one of the most versatile methods known to convert flat synthetic filament yarns to textured yarns. This research provides a parametrical analysis of the effect of a single process parameter on the tenacity, modulus and elongation of the yarn.
Get Price2010-1-1 · Air-jet texturing is a purely mechanical process that can be used to combine reinforcing and matrix-forming filaments. Figure 12.3(a) shows the schematic of the air-jet texturing process, and the structure of the air-textured yarn is shown in Fig. 12.3(b).In this process, supply yarn is overfed in the turbulent zone where compressed air is directed mainly parallel to the yarn path, resulting ...
Get Price2021-2-25 · Amirkabir University of Technology (Tehran Polytechnic) Content. Pepole
Get Price2019-10-15 · The properties of ceramics can be improved by controlling the microstructure through texturing ceramics in a strong magnetic field. Fabricating dense boron carbide (B 4 C) requires high temperature sintering, therefore sintering additives are often used in order to densify B 4 C ceramics at lower temperatures. However, combined effect of texturing and sintering additives on densification of …
Get Price2016-2-28 · In this study, a series of small and large scale direct shear tests were conducted to evaluate the effect of mixing fly ash in two ratios i.e. 20 and 25% by volume on the shear strength behaviour of coal mine overburden dump rock and these results are compared with direct shear tests conducted on overburden dump material without fly ash.
Get Price2021-7-8 · Effect of Time and Coke Amount in Briquette Made of EAF Dust and Coke. Effects of Industry 4.0 in BOF Steel Plants. Efficient and Clean – Big River Steel’s New PL-TCM Sets a World Record in Exhaust Air Purity. Energy Efficiency in Secondary Cooling – New Generation of Air-Mist Nozzles With Reduced Air Consumption and High Cooling Efficiency
Get PriceThe first self-twist spinning system was devised at the CSIRO laboratories at Geelong, Australia, by Henshaw (1971). To date, the only method of alternate (S and Z) twist insertion into a staple fibre is the Repco self-twist machine (GB Patent 1962, US Patent 1977a) and the WinSpin machine from the Saurer Group.In the Repco system, introduced in the 1970s, the top and bottom twisting rollers ...
Get Price2. draw texturing 3. stuffer box 4. air-jet 5. knit-de-knit. false twist process ... -un-oriented filaments or partially oriented filaments are fed through the double-heater false-twist spinner, then stretched and slightly heat-set ... -nozzles blows air against the silver forcing the outermost fibers to wrap around the silver producing a yarn
Get Price2015-4-8 · Air-jet texturing is one of the most versatile methods known to convert flat synthetic filament yarns to textured yarns. This research provides a parametrical analysis of the effect of a single process parameter on the tenacity, modulus and elongation of the yarn.
Get Price2016-2-28 · In this study, a series of small and large scale direct shear tests were conducted to evaluate the effect of mixing fly ash in two ratios i.e. 20 and 25% by volume on the shear strength behaviour of coal mine overburden dump rock and these results are compared with direct shear tests conducted on overburden dump material without fly ash.
Get Price2021-7-22 · Mohammad Haghighat Kish, Mohammad Reza Mohaddes Mojtahedi, 'The effect of machine variables and twist of polyester yarn on the properties of bulked yarns by air texturing', Amirkabir Science and Research Journal, September 1992 Vol. 0, Num. 21, Page 0-0, September 1992,
Get PriceTable of contents conference proceedings. The tables of contents are generated automatically and are based on the data records of the individual contributions available in the ind
Get PriceManufacturing (Research Oriented) ... A Study of Gyroscopic Effects on Stability of High Speed Milling. Mohammad R. Movahhedy, Peiman Mosaddegh. ... High Pressure Air Compressor Condition Monitoring Using Unsupervised Pattern Classification Based on Projection Networks.
Get PriceThe ISSN (Online) of Journal of Mechanical Science and Technology is 1976-3824 . An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic. Journal of Mechanical Science and Technology Key Factor Analysis.
Get PriceDOI. 10.1021/bm301332z. 10-12-2012. De Haan LT, Sánchez-Somolinos C, Bastiaansen CMW, Schenning APHJ and Broer DJ (2012). ' Engineering of complex order and the macroscopic deformation of liquid crystal polymer networks. ' Angewandte Chemie - …
Get Price2019-7-15 · This includes the study of air jet texturing machine, texturing of glass yarns, fabric development and finally the fabrication of composite panels. The physical and mechanical test methods and equipment used to characterise the textured and non-textured glass composites and the scientific principles involved in the techniques are described in ...
Get PriceNoise control in texturing. Air jet texturing - Principle, mechanisms, development of jets and machinery, process optimization and characterization, air jet texturing of spun yarns. Air interlacement - Principle and mechanism, jet development and characterization. Bulked continuous filament yarns - Need, principle, technology development.
Get Price-Has a jet of compressed air that swirls the fibers together and inserts twist-Two nozzles-There is not a large amount of twist throughout the entire bundle, but the fibers that are on the surface wrap tightly around the rest of the bundle-Fiber produced by air jet spinning has a less desirable handle than other spinning methods
Get PriceThe ISSN (Online) of Journal of Mechanical Science and Technology is 1976-3824 . An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic. Journal of Mechanical Science and Technology Key Factor Analysis.
Get PriceAbout. The International Journal of Engine Research publishes only the highest quality original and review papers on experimental and analytical studies of engine technology.The journal is intended to serve as the premier source of long-term reference information about all aspects of engines and related technologies, including the latest research and developments affecting the automotive ...
Get PriceA Study of Optimization of Machining Strategy for Enhancing the Efficiency of Process Chain in Ultra-precision Machining. , 01 Jun 2016. A study of surface measuring limitation on a laser scanning microscope by the examination of response properties of surface texture and …
Get PriceResearch Articles S.NoArticle Title & Author NameDownload 1A CELLULAR HOST USING BASED ON INTERNET PROTOCOL (IP) B.Thatchinamoorthy, Mr.Arul 2A COLLABORATIVE METHOD OF SPATIAL & TRANSFORMATION DOMAIN FOR DIGITAL IMAGE ENHANCEMENT Rogeith.V*, Dr.G.Rosline Nesa Umari 3 A FRAMEWORK FOR DATA SECURITY IN CLOUD COMPUTING R.Priyanka* 4 A NEW …
Get PriceNoise control in texturing. Air jet texturing - Principle, mechanisms, development of jets and machinery, process optimization and characterization, air jet texturing of spun yarns. Air interlacement - Principle and mechanism, jet development and characterization. Bulked continuous filament yarns - Need, principle, technology development.
Get PriceReport describes an extensive experimental study to examine the effects of prior overloading for temperatures spanning the whole transition regime. A number of loading conditions were employed on specimens made from a 50mm thick A533B steel. The specimens were oriented parallel and transverse to the rolling direction and a variety of crack depths were employed.
Get Price2021-4-9 · The complexity of modelling such a dynamic from a theoretical understanding of light–matter interaction is significant because of a plethora of effects that include both the non-linear interactions typical of ultrafast laser machining and the effects of diffraction associated with non-Gaussian spatial-intensity profiles.
Get PriceThe jet flow through these nozzles has been numerically modeled and experimentally checked, using Schlieren visualization, under exact-design, over-expansion and under-expansion operating conditions coming to a good numerical-experimental agreement …
Get Price2019-7-15 · This includes the study of air jet texturing machine, texturing of glass yarns, fabric development and finally the fabrication of composite panels. The physical and mechanical test methods and equipment used to characterise the textured and non-textured glass composites and the scientific principles involved in the techniques are described in ...
Get Price2021-3-24 · Mana Halvaei, Masoud Jamshidi, Masoud Latifi, Mojtaba Ejtemaei, 'Effects of volume fraction and length of carbon short fibers on flexural properties of carbon textile reinforced engineered cementitious composites (ECCs): an experimental and computational study', CONSTRUCTION AND BUILDING MATERIALS, February 2020 Vol. 245, Num. 0, Page 1-13 ...
Get PriceA.K.Sengupta, V.K.Kothari and R. Alagirusamy 'Influence of Drawing Variables on the Properties of Air Textured Yarns made from POY Polyester Feeder Yarns' Man Made Fibre Year Book of CTI (1989) p80-83. A.K.Sengupta, V.K.Kothari and R. Alagirusamy 'An analysis of the Air-Jet Yarn-Texturing Process'. Letter to the editor, Journal of the Textile ...
Get Price2019-7-15 · This includes the study of air jet texturing machine, texturing of glass yarns, fabric development and finally the fabrication of composite panels. The physical and mechanical test methods and equipment used to characterise the textured and non-textured glass composites and the scientific principles involved in the techniques are described in ...
Get PriceInternational Journal of Heat and Mass Transfer is the vehicle for the exchange of basic ideas in heat and mass transfer between research workers and engineers throughout the world. It focuses on both analytical and experimental research, with an emphasis on contributions which increase the basic understanding of transfer processes and their ...
Get PriceA parametric study of field strength study indicate a saturation effect on the capacity gain beyond 2kG, thereby, limiting the magnetic field requirement at high C-rates. The seminar will conclude with a glimpse of preliminary investigations in magnetically orientable anodes, for example, functionalized laser-induced graphene from polymeric ...
Get Price2011-12-2 · Effect of jet of base bleed igniter on ignition delay time Research on metric of network effect in ship formation cooperation anti-missile operation Teng, Ke-Nan (1); Sheng, An-Dong (1) Research on one-dimensional two-phase internal ballistics of SRM Chen, Jun
Get Price251-300. Title. Author (s) Analysis of Fibre Cross-Coupling Mechanisms in Fibre-Optical Force Sensors. Bunge, Christian-Alexander (Corresponding author) Kallweit, Jan Philipp. Colakoglu, Levent. Gries, Thomas. FactStack : Interoperable Data Management and Preservation for the Web and Industry 4.0.
Get PriceThe invention claimed is: 1. A camera comprising: a sensor for sensing an image; a texture and color transformer for adding texture and color transformation effects to at least part of the sensed image to produce a transformed image, the transformer being configured to compare actual and intended texture transformation effects added to the sensed image in order to determine color ...
Get Price-draw-texturing-stuffer box-air-jet ... _____ are fed over an air jet at a faster rate than they are drawn off; the blast of air forces some of the filaments into very tiny loops. ... a narrow sliver is fed into a machine with 2 nozzles facing in opposite directions; each nozzle blows air …
Get PriceAir Jet- Feed filament yarns into warm air faster than they are drawn off Knit Deknit- yarns knit into a narrow tub, run through heat setting machine, cool and unravel. Stuffer Box- Filament yarns are pushed into a heated box faster than they are drawn out. Draw Texturing- Draws, heats, and twists simultaneously. *** 3 Types***
Get Price2016-8-31 · AbstractThe objectives of this research work were to investigate the use of high-pressure steam in order to replace air in the production of spun-like textured yarns and to investigate the effect of core-yarn draw ratio and core-yarn heat setting on texturing performance. An existing air jet texturing machine was modified to supply either air or steam to the texturing nozzle.
Get PriceThe present study compares the laser medium properties for subsonic and transonic iodine injection schemes of a multi-kW grid-nozzle supersonic chemical oxygen iodine laser (COIL). Two supersonic nozzles of similar geometry having subsonic or transonic iodine injectors were investigated in the present study.
Get PriceProc. SPIE 5713, Photon Processing in Microelectronics and Photonics IV, pg 9 (12 April 2005); doi: 10.1117/12.590375
Get Price2021-8-2 · The ISSN (Online) of Journal of Materials Processing Technology is 1873-4774 . An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic. Journal of Materials Processing Technology Key Factor Analysis. Publisher.
Get PriceWith a pumping pulse of ~ 100 ns (FWHM) and a specific peak power deposition of ~ 1 MW cm -3 bar -1 in a gas mixture containing F 2 : Ar : He (0.1% : 5% : 94.9%) at 2 bar total pressure the spontaneous emission with a peak intensity of ~ 200 W srad -1 and a pulse width (FWHM) of ~ 60 ns was measured.
Get PriceWear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on ...
Get PriceModel-based predictive brake control during weft insertion in air-jet weaving Autor(en) Wu, Tong (Corresponding author) Stemmler, Sebastian Kemper, Maximilian Abel, Dirk Gries, Thomas; Titel Ecological assessment of fuel cell electric vehicles with special focus on type IV carbon fiber hydrogen tank Autor(en) Benitez, Alicia (Corresponding author)
Get Price2020-6-25 · The polymer solar cells have become an attractive alternative to the silicon-based solar cells, with more focused and continuous research since last decade toward significant improvements in their reported efficiencies [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22].Such improvements have only become possible with—the continuous research on new types of materials which include the ...
Get Price2016-11-3 · Surface texturing has been recognized as a method for enhancing the tribological properties of surfaces for many years. Adding a controlled texture to one of two faces in relative motion can have many positive effects, such as reduction of friction and wear and increase in load capacity.
Get PriceAir motion inside the intake manifold is one of the important factors, which govern the engine performance and emission of multi-cylinder diesel engines. Any cold flow study on IC is targeting the process of identifying and improving the fluid flow inside the ports and the combustion chamber.
Get PriceProc. SPIE 5713, Photon Processing in Microelectronics and Photonics IV, pg 9 (12 April 2005); doi: 10.1117/12.590375
Get PriceIn the past years the intrinsic beam quality of diode lasers in terms of divergence, smile and stability as well as the lifetime increased significantly. Single bars with beam parameter products around BPP=20 mm*mrad have been demonstrated. Lifetimes of 30.000h …
Get Price2016-11-3 · Surface texturing has been recognized as a method for enhancing the tribological properties of surfaces for many years. Adding a controlled texture to one of two faces in relative motion can have many positive effects, such as reduction of friction and wear and increase in load capacity.
Get PriceISSN 0003-6951. Benedetti, M and Bonfa', F and Bertini, I and Introna, V and Ubertini, S (2017) Explorative study on Compressed Air Systems' energy efficiency in production and use: First steps towards the creation of a benchmarking system for large …
Get PriceThe present study compares the laser medium properties for subsonic and transonic iodine injection schemes of a multi-kW grid-nozzle supersonic chemical oxygen iodine laser (COIL). Two supersonic nozzles of similar geometry having subsonic or transonic iodine injectors were investigated in the present study.
Get Price2021-8-2 · The ISSN (Online) of Journal of Materials Processing Technology is 1873-4774 . An ISSN is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic. Journal of Materials Processing Technology Key Factor Analysis. Publisher.
Get PriceEffect of ethanol on the mold filling-time and mechanical properties of woven glass fiber reinforced epoxy filled with TiO 2 nanoparticles ... Solution blown nanofibrous air filters modified with glass microparticles ... A comparative study of mechanical, dynamic mechanical and morphological characterization of tampico and coir fibre-reinforced ...
Get PriceSite-specific art and its avant-garde solutions in a historic city’s cultural space. Selected issues of monument protection and urban design in contemporary conservation practice. Modern solutions for presentation of lost urban heritage in the public city space exemplified by …
Get Price2016-8-31 · AbstractThe objectives of this research work were to investigate the use of high-pressure steam in order to replace air in the production of spun-like textured yarns and to investigate the effect of core-yarn draw ratio and core-yarn heat setting on texturing performance. An existing air jet texturing machine was modified to supply either air or steam to the texturing nozzle.
Get PriceAir motion inside the intake manifold is one of the important factors, which govern the engine performance and emission of multi-cylinder diesel engines. Any cold flow study on IC is targeting the process of identifying and improving the fluid flow inside the ports and the combustion chamber.
Get PriceWear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on ...
Get Price2021-7-8 · 192. Masoud Latifi, 'Overcoming some of the problems associated with the design of warpKnitted fabrics by the of a computer aided design', Amirkabir Journal of Science & Technology, March 1991 Vol. 0, Num. 0, Page 0-0, March 1991, Conference Papers. Portal Records.
Get PriceThis EHD effect that prevents Plateau–Rayleigh instabilities allows the nozzle flow rate to be substantially reduced for MEW. [5, 13] Additionally, the comparable high viscosity and low conductivity of melt fluids support the control and stability of the jet.[5, 13-15] This in combination with the controllable collector plate, allows the defined deposition of the jet, which starts to ...
Get Price2018-10-9 · As customary at TextileFuture, we produce for our readers this Newsletter as a sort of a guide to ITMA Asia+CITME taking place from October 15 -19, 2018 at the new National Exhibition and Convention Centre (NECC) in Shanghai, China. It is based upon all information we have on hand from selected exhibitors at our editorial…
Get Price2019-7-15 · This includes the study of air jet texturing machine, texturing of glass yarns, fabric development and finally the fabrication of composite panels. The physical and mechanical test methods and equipment used to characterise the textured and non-textured glass composites and the scientific principles involved in the techniques are described in ...
Get PriceSite-specific art and its avant-garde solutions in a historic city’s cultural space. Selected issues of monument protection and urban design in contemporary conservation practice. Modern solutions for presentation of lost urban heritage in the public city space exemplified by …
Get PriceJet nozzle S-twist Cross-section AA Air jet-1 ck Ba ler o r l Air jet-2 Take-up rollers Yarn package nt Fro ler rol 1st nozzle N1 le dd Mi e l r rol 2nd nozzle N2 N1 nt Fro ler rol N2 Sp inn ing ten sio n 1.22 Principles of air-jet spinning. Overview of developments in yarn spinning technology 37 passes.
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