Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene
Compared with water penetration condition of short-shot water-assisted injection molding with or without overflow cavity, it can be known from theory and common knowledge that short-shot water-assisted injection molding with overflow cavity has many advantages, such as it can save materials and ener...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2020/3718670 |
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| author | Zhong Yu He-Sheng Liu Tang-Qing Kuang Xing-Yuan Huang Wei Zhang Zhong-Shi Chen Kai Zhang |
| author_facet | Zhong Yu He-Sheng Liu Tang-Qing Kuang Xing-Yuan Huang Wei Zhang Zhong-Shi Chen Kai Zhang |
| author_sort | Zhong Yu |
| collection | DOAJ |
| description | Compared with water penetration condition of short-shot water-assisted injection molding with or without overflow cavity, it can be known from theory and common knowledge that short-shot water-assisted injection molding with overflow cavity has many advantages, such as it can save materials and energy. Then, the effects of melt short shot size, water injection delay time, melt temperature and water injection pressure on the penetration of water after penetration, and the orientation distribution of short fibers during water-assisted injection molding of the overflow cavity short-shot method were studied. It is found that the melt short shot size had the greatest influence on it, followed by water injection pressure, water injection delay time, and finally, melt temperature. With the increase of the melt short shot size, the thickness of the residual wall of the whole main cavity becomes thinner, the orientation of short fiber along the melt flow direction becomes higher, and the degree of fiber orientation changes becomes lower. In the front half of the main cavity, with the decrease of water injection pressure, the delay time of water injection, and the melt temperature, in the front part of the main cavity, the residual wall thickness becomes thinner, the fiber orientation along the melt flow direction becomes lower, and the fiber orientation changes degree becomes higher; in the latter half of the main cavity, the influence of the water penetration and the orientation distribution of short fibers along the melt flow direction are not significant. |
| format | Article |
| id | doaj-art-568c53bfbbfb49039631c889295b07e7 |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-568c53bfbbfb49039631c889295b07e72025-02-03T05:45:45ZengWileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/37186703718670Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced PolypropyleneZhong Yu0He-Sheng Liu1Tang-Qing Kuang2Xing-Yuan Huang3Wei Zhang4Zhong-Shi Chen5Kai Zhang6Polymer Processing Laboratory, Nanchang University, Nanchang 330031, ChinaPolymer Processing Laboratory, Nanchang University, Nanchang 330031, ChinaSchool of Mechanical & Electrical Engineering, East China Jiaotong University, Nanchang 330013, ChinaPolymer Processing Laboratory, Nanchang University, Nanchang 330031, ChinaPolymer Processing Laboratory, Nanchang University, Nanchang 330031, ChinaPolymer Processing Laboratory, Nanchang University, Nanchang 330031, ChinaJiangxi Province Key Laboratory of Polymer Preparation and Processing, Shangrao Normal University, Shangrao 334001, ChinaCompared with water penetration condition of short-shot water-assisted injection molding with or without overflow cavity, it can be known from theory and common knowledge that short-shot water-assisted injection molding with overflow cavity has many advantages, such as it can save materials and energy. Then, the effects of melt short shot size, water injection delay time, melt temperature and water injection pressure on the penetration of water after penetration, and the orientation distribution of short fibers during water-assisted injection molding of the overflow cavity short-shot method were studied. It is found that the melt short shot size had the greatest influence on it, followed by water injection pressure, water injection delay time, and finally, melt temperature. With the increase of the melt short shot size, the thickness of the residual wall of the whole main cavity becomes thinner, the orientation of short fiber along the melt flow direction becomes higher, and the degree of fiber orientation changes becomes lower. In the front half of the main cavity, with the decrease of water injection pressure, the delay time of water injection, and the melt temperature, in the front part of the main cavity, the residual wall thickness becomes thinner, the fiber orientation along the melt flow direction becomes lower, and the fiber orientation changes degree becomes higher; in the latter half of the main cavity, the influence of the water penetration and the orientation distribution of short fibers along the melt flow direction are not significant.http://dx.doi.org/10.1155/2020/3718670 |
| spellingShingle | Zhong Yu He-Sheng Liu Tang-Qing Kuang Xing-Yuan Huang Wei Zhang Zhong-Shi Chen Kai Zhang Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene Advances in Polymer Technology |
| title | Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene |
| title_full | Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene |
| title_fullStr | Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene |
| title_full_unstemmed | Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene |
| title_short | Numerical Simulation during Short-Shot Water-Assisted Injection Molding Based on the Overflow Cavity for Short-Glass Fiber-Reinforced Polypropylene |
| title_sort | numerical simulation during short shot water assisted injection molding based on the overflow cavity for short glass fiber reinforced polypropylene |
| url | http://dx.doi.org/10.1155/2020/3718670 |
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