FERNANDEZ, Angel ;MERCADO, Daniel ;JAVIERRE, Carlos ;MUNIESA, Manuel . Large thermoplastic parts quality improvements using monitorized nozzle. Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 54, n.4, p. 258-265, august 2017. ISSN 0039-2480. Available at: <https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/>. Date accessed: 20 dec. 2024. doi:http://dx.doi.org/.
Fernandez, A., Mercado, D., Javierre, C., & Muniesa, M. (2008). Large thermoplastic parts quality improvements using monitorized nozzle. Strojniški vestnik - Journal of Mechanical Engineering, 54(4), 258-265. doi:http://dx.doi.org/
@article{.,
author = {Angel Fernandez and Daniel Mercado and Carlos Javierre and Manuel Muniesa},
title = {Large thermoplastic parts quality improvements using monitorized nozzle},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {54},
number = {4},
year = {2008},
keywords = {nozzles; polyolefins; viscosity; pressure measurement; temperature measurement; },
abstract = {Rheological behaviour control of thermoplastic material is critical to achieve reliable production series free of defects such us flashes or short shots. Defects are especially critical when injecting large parts if stability of processing parameters cannot be achieved. Viscosity variation during production depends specially of lot of raw material and programmed parameters concerning temperature. Understanding rheological behaviour of molten material in injection nozzle is critical to obtain repetitive series of large parts free of defects. In this article apparent viscosity was obtained using monitorized nozzle and used as an input to MoldFlow analysis to predict defects. The Simulation model included a two different cavities mould for washing machine tubs made of talc filled polypropylene, hot runner manifold and the machine nozzle. To validate analysis several complete series of parts were injected using a nozzle with two pressure and temperature sensors in a heated thick cylindrical channel, and a screw displacement sensor. Previously the nozzle was validated testing the effect of pressure losses with shear rate variation; apparent viscosity with pressure variations; and others such us viscous heating of polymer. Part defects were characterized using statistical analysis of registered parameters during filling and packing phase of the mould. Simulations of identical experimental parameters for correct and failed parts were used to validate results and characterized the defects.},
issn = {0039-2480}, pages = {258-265}, doi = {},
url = {https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/}
}
Fernandez, A.,Mercado, D.,Javierre, C.,Muniesa, M. 2008 August 54. Large thermoplastic parts quality improvements using monitorized nozzle. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 54:4
%A Fernandez, Angel %A Mercado, Daniel %A Javierre, Carlos %A Muniesa, Manuel %D 2008 %T Large thermoplastic parts quality improvements using monitorized nozzle %B 2008 %9 nozzles; polyolefins; viscosity; pressure measurement; temperature measurement; %! Large thermoplastic parts quality improvements using monitorized nozzle %K nozzles; polyolefins; viscosity; pressure measurement; temperature measurement; %X Rheological behaviour control of thermoplastic material is critical to achieve reliable production series free of defects such us flashes or short shots. Defects are especially critical when injecting large parts if stability of processing parameters cannot be achieved. Viscosity variation during production depends specially of lot of raw material and programmed parameters concerning temperature. Understanding rheological behaviour of molten material in injection nozzle is critical to obtain repetitive series of large parts free of defects. In this article apparent viscosity was obtained using monitorized nozzle and used as an input to MoldFlow analysis to predict defects. The Simulation model included a two different cavities mould for washing machine tubs made of talc filled polypropylene, hot runner manifold and the machine nozzle. To validate analysis several complete series of parts were injected using a nozzle with two pressure and temperature sensors in a heated thick cylindrical channel, and a screw displacement sensor. Previously the nozzle was validated testing the effect of pressure losses with shear rate variation; apparent viscosity with pressure variations; and others such us viscous heating of polymer. Part defects were characterized using statistical analysis of registered parameters during filling and packing phase of the mould. Simulations of identical experimental parameters for correct and failed parts were used to validate results and characterized the defects. %U https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/ %0 Journal Article %R %& 258 %P 8 %J Strojniški vestnik - Journal of Mechanical Engineering %V 54 %N 4 %@ 0039-2480 %8 2017-08-21 %7 2017-08-21
Fernandez, Angel, Daniel Mercado, Carlos Javierre, & Manuel Muniesa. "Large thermoplastic parts quality improvements using monitorized nozzle." Strojniški vestnik - Journal of Mechanical Engineering [Online], 54.4 (2008): 258-265. Web. 20 Dec. 2024
TY - JOUR AU - Fernandez, Angel AU - Mercado, Daniel AU - Javierre, Carlos AU - Muniesa, Manuel PY - 2008 TI - Large thermoplastic parts quality improvements using monitorized nozzle JF - Strojniški vestnik - Journal of Mechanical Engineering DO - KW - nozzles; polyolefins; viscosity; pressure measurement; temperature measurement; N2 - Rheological behaviour control of thermoplastic material is critical to achieve reliable production series free of defects such us flashes or short shots. Defects are especially critical when injecting large parts if stability of processing parameters cannot be achieved. Viscosity variation during production depends specially of lot of raw material and programmed parameters concerning temperature. Understanding rheological behaviour of molten material in injection nozzle is critical to obtain repetitive series of large parts free of defects. In this article apparent viscosity was obtained using monitorized nozzle and used as an input to MoldFlow analysis to predict defects. The Simulation model included a two different cavities mould for washing machine tubs made of talc filled polypropylene, hot runner manifold and the machine nozzle. To validate analysis several complete series of parts were injected using a nozzle with two pressure and temperature sensors in a heated thick cylindrical channel, and a screw displacement sensor. Previously the nozzle was validated testing the effect of pressure losses with shear rate variation; apparent viscosity with pressure variations; and others such us viscous heating of polymer. Part defects were characterized using statistical analysis of registered parameters during filling and packing phase of the mould. Simulations of identical experimental parameters for correct and failed parts were used to validate results and characterized the defects. UR - https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/
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author = {Fernandez, A., Mercado, D., Javierre, C., Muniesa, M.},
title = {Large thermoplastic parts quality improvements using monitorized nozzle},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {54},
number = {4},
year = {2008},
doi = {},
url = {https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/}
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TY - JOUR AU - Fernandez, Angel AU - Mercado, Daniel AU - Javierre, Carlos AU - Muniesa, Manuel PY - 2017/08/21 TI - Large thermoplastic parts quality improvements using monitorized nozzle JF - Strojniški vestnik - Journal of Mechanical Engineering; Vol 54, No 4 (2008): Strojniški vestnik - Journal of Mechanical Engineering DO - KW - nozzles, polyolefins, viscosity, pressure measurement, temperature measurement, N2 - Rheological behaviour control of thermoplastic material is critical to achieve reliable production series free of defects such us flashes or short shots. Defects are especially critical when injecting large parts if stability of processing parameters cannot be achieved. Viscosity variation during production depends specially of lot of raw material and programmed parameters concerning temperature. Understanding rheological behaviour of molten material in injection nozzle is critical to obtain repetitive series of large parts free of defects. In this article apparent viscosity was obtained using monitorized nozzle and used as an input to MoldFlow analysis to predict defects. The Simulation model included a two different cavities mould for washing machine tubs made of talc filled polypropylene, hot runner manifold and the machine nozzle. To validate analysis several complete series of parts were injected using a nozzle with two pressure and temperature sensors in a heated thick cylindrical channel, and a screw displacement sensor. Previously the nozzle was validated testing the effect of pressure losses with shear rate variation; apparent viscosity with pressure variations; and others such us viscous heating of polymer. Part defects were characterized using statistical analysis of registered parameters during filling and packing phase of the mould. Simulations of identical experimental parameters for correct and failed parts were used to validate results and characterized the defects. UR - https://www.sv-jme.eu/sl/article/large-thermoplastic-parts-quality-improvements-using-monitorized-nozzle/
Fernandez, Angel, Mercado, Daniel, Javierre, Carlos, AND Muniesa, Manuel. "Large thermoplastic parts quality improvements using monitorized nozzle" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 54 Number 4 (21 August 2017)
Strojniški vestnik - Journal of Mechanical Engineering 54(2008)4, 258-265
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.
Rheological behaviour control of thermoplastic material is critical to achieve reliable production series free of defects such us flashes or short shots. Defects are especially critical when injecting large parts if stability of processing parameters cannot be achieved. Viscosity variation during production depends specially of lot of raw material and programmed parameters concerning temperature. Understanding rheological behaviour of molten material in injection nozzle is critical to obtain repetitive series of large parts free of defects. In this article apparent viscosity was obtained using monitorized nozzle and used as an input to MoldFlow analysis to predict defects. The Simulation model included a two different cavities mould for washing machine tubs made of talc filled polypropylene, hot runner manifold and the machine nozzle. To validate analysis several complete series of parts were injected using a nozzle with two pressure and temperature sensors in a heated thick cylindrical channel, and a screw displacement sensor. Previously the nozzle was validated testing the effect of pressure losses with shear rate variation; apparent viscosity with pressure variations; and others such us viscous heating of polymer. Part defects were characterized using statistical analysis of registered parameters during filling and packing phase of the mould. Simulations of identical experimental parameters for correct and failed parts were used to validate results and characterized the defects.