Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process

In the injection molding process, mold temperature control is one of the most efficient methods for improving product quality. In this research, an external gas-assisted mold temperature control (Ex-GMTC) with gas temperature variation from 200°C to 400°C was applied to thin wall injection molding a...

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Main Authors: Phan The Nhan, Thanh Trung Do, Tran Anh Son, Pham Son Minh
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Polymer Technology
Online Access:http://dx.doi.org/10.1155/2019/5973403
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author Phan The Nhan
Thanh Trung Do
Tran Anh Son
Pham Son Minh
author_facet Phan The Nhan
Thanh Trung Do
Tran Anh Son
Pham Son Minh
author_sort Phan The Nhan
collection DOAJ
description In the injection molding process, mold temperature control is one of the most efficient methods for improving product quality. In this research, an external gas-assisted mold temperature control (Ex-GMTC) with gas temperature variation from 200°C to 400°C was applied to thin wall injection molding at melt thicknesses from 0.2 to 0.6 mm. The melt flow length was evaluated through the application of this system to the mold of a thin rib product. The results show that the heating process achieves high efficiency in the initial 20 s, with a maximum heating rate of 6.4°C/s. In this case, the mold surface reached 158.4°C. By applying Ex-GMTC to a 0.2 mm flow thickness, the flow length increased from 37.85 to 41.32 mm with polypropylene (PP) material and from 14.54 to 15.8 mm with acrylonitrile butadiene styrene (ABS) material. With the thin rib mold and use of Ex-GMTC, the mold temperature varied from 112.0°C to 140.8°C and the thin rib height reached 7.0 mm.
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spelling doaj-art-b6d6ecc9211f4d63b2b8264f23b0f60c2025-02-03T01:23:44ZengWileyAdvances in Polymer Technology0730-66791098-23292019-01-01201910.1155/2019/59734035973403Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding ProcessPhan The Nhan0Thanh Trung Do1Tran Anh Son2Pham Son Minh3HCMC University of Technology and Education, Hochiminh City, VietnamHCMC University of Technology and Education, Hochiminh City, VietnamHo Chi Minh City University of Technology, VietnamHCMC University of Technology and Education, Hochiminh City, VietnamIn the injection molding process, mold temperature control is one of the most efficient methods for improving product quality. In this research, an external gas-assisted mold temperature control (Ex-GMTC) with gas temperature variation from 200°C to 400°C was applied to thin wall injection molding at melt thicknesses from 0.2 to 0.6 mm. The melt flow length was evaluated through the application of this system to the mold of a thin rib product. The results show that the heating process achieves high efficiency in the initial 20 s, with a maximum heating rate of 6.4°C/s. In this case, the mold surface reached 158.4°C. By applying Ex-GMTC to a 0.2 mm flow thickness, the flow length increased from 37.85 to 41.32 mm with polypropylene (PP) material and from 14.54 to 15.8 mm with acrylonitrile butadiene styrene (ABS) material. With the thin rib mold and use of Ex-GMTC, the mold temperature varied from 112.0°C to 140.8°C and the thin rib height reached 7.0 mm.http://dx.doi.org/10.1155/2019/5973403
spellingShingle Phan The Nhan
Thanh Trung Do
Tran Anh Son
Pham Son Minh
Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
Advances in Polymer Technology
title Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
title_full Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
title_fullStr Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
title_full_unstemmed Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
title_short Study on External Gas-Assisted Mold Temperature Control for Improving the Melt Flow Length of Thin Rib Products in the Injection Molding Process
title_sort study on external gas assisted mold temperature control for improving the melt flow length of thin rib products in the injection molding process
url http://dx.doi.org/10.1155/2019/5973403
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AT trananhson studyonexternalgasassistedmoldtemperaturecontrolforimprovingthemeltflowlengthofthinribproductsintheinjectionmoldingprocess
AT phamsonminh studyonexternalgasassistedmoldtemperaturecontrolforimprovingthemeltflowlengthofthinribproductsintheinjectionmoldingprocess