Gas-assisted Injection Molding with Different Flow Patterns of Injection Gas

doi:10.19491/j.issn.1001-9278.2016.06.013

Abstract

Abstract: In this paper, temperature distribution of cooling stage of GAIM was studied via numerical simulation. Under some reasonable assumptions during the cooling stage of GAIM, the temperature distribution of PE-HD parts was studied via the numerical simulation using software package MATLAB, which used the average heat instead of crystallization latent heat in crystallization temperature interval and the boundary condition was second category of convective heat transfer boundary condition. The velocity of N2 with different pressure was determined and the simulated temperature field was verified by experiment. The experimental results showed that the simulation value of cooling temperature field was consistent with experiment value.

Key words: flow patterns of injection gas, continuous injection of nitrogen, temperature profile, numerical simulation

[1]	ZHAO Hongjing, ZHU Jiang. Study on numerical simulation of two⁃phase extrusion for micro/nano⁃laminated natural rubber/polypropylene [J]. China Plastics, 2022, 36(8): 110-114.
[2]	HUANG Xuemei, LIU Hesheng, HUANG Xingyuan, YU Zhong, JIANG Shiyu. Numerical simulation and experimental study on gas⁃assisted extrusion process of U⁃shaped parts [J]. China Plastics, 2022, 36(7): 93-103.
[3]	DENG Shixin, WANG Jian, YANG Weimin. Simulation and analysis of fluid high⁃pressure and high⁃speed collision in mixing head cavity of enhanced reaction injection molding machine [J]. China Plastics, 2022, 36(6): 130-136.
[4]	ZHANG Qingtao, BI Chao. Numerical simulation of flow process of pellets in underwater⁃pelletizing device based on CFD⁃DEM [J]. China Plastics, 2022, 36(6): 87-91.
[5]	BAN Dongdong, WANG Danhua, LIU Kui, LI Yanan, LI Han, DAI Yahui. Numerical simulation on mixing properties of wavy twin⁃screw elements [J]. China Plastics, 2022, 36(4): 95-101.
[6]	SHENG Tianyang, TAN Jing, ZHANG Zhenghe, GAO Xiaodong, YU Jingchao, CHENG Lisheng, YANG Weimin. Numerical Simulation of Polyacrylonitrile Gel Flow Characteristics in Laminated Runner [J]. China Plastics, 2021, 35(7): 74-79.
[7]	WANG Ruizhe, LIU Hesheng, HUANG Xingyuan, YU Zhong, JIANG Shiyu, LIU Tongke. Effect of Different Air Intake Angles on Gas⁃assisted Extrusion of Sheet Polymer [J]. China Plastics, 2021, 35(7): 80-86.
[8]	LU Jing, WANG Wei. Numerical Simulations of Capillary Extrusion of Low Density Polyethylene Melt [J]. China Plastics, 2021, 35(5): 79-85.
[9]	HE Jialong, GU Lin, ZHU Yuting, SONG Xiuduo, YANG Xueqin, MA Yulu, XIE Linsheng. Establishment of Rheological Model of Solid Propellant in Spiral Extrusion Process [J]. China Plastics, 2021, 35(2): 58-62.
[10]	NIU Xu, LIU Yue, ZHANG Yajing. Effect of entrance speed of thermal oil on temperature uniformity of granulation belt of granulation template [J]. China Plastics, 2021, 35(12): 76-80.
[11]	WANG Hexiang, PENG Jiong, GE Zhen, ZHANG Yongtao, GUO Bingyi, LI Zhongshan. Research Progress in Numerical Simulation of Twin-screw Extrusion Process [J]. China Plastics, 2020, 34(9): 96-102.
[12]	Liangxian LIU, Zhihua FENG, Chunxue HU, Jinan GE. Optimization Design of PET Bottle Stretch Blow Molding Based on Orthogonal Test [J]. China Plastics, 2020, 34(6): 73-79.
[13]	Beijing YANG, Xu YANG, Jingying SU, Haimei LI. Processing Qualities and Applications of Injection Molded Spray‑free Plastic Parts [J]. China Plastics, 2020, 34(6): 118-125.
[14]	TIAN Renjie, ZHU Guangming, LYU Yuwei, WU Taotao, REN Tianning, MA Zhiliang, ZHANG Shuang. Experimental Study and Numerical Simulation for Effect of Carbon Black on Laser Energy Absorption of PEEK [J]. China Plastics, 2020, 34(10): 44-50.
[15]	. Simulation Study on Temperature Uniformity of Air and Mould Wall Inside an Oven of Rotational Molding [J]. China Plastics, 2019, 33(8): 63-68.

Gas-assisted Injection Molding with Different Flow Patterns of Injection Gas

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments