The Visualization Research on Cavitation Flaw of the Jubilance Toy's Part with Different Wall Thickness

2012 ◽  
Vol 479-481 ◽  
pp. 45-49
Author(s):  
Yong Li ◽  
Yu Xin Zhang ◽  
Zhi Qiang Sun ◽  
Rui Zhu Zhang
Keyword(s):  
Experimental Study ◽  
Injection Molding ◽  
Wall Thickness ◽  
Technological Parameter ◽  
Injection Molding Process ◽  
Kinetic Simulation ◽  
Molding Process

The injection molding process with different wall thickness may create the obvious cavitation flaw. So carried on the kinetic simulation of filling injection using plastic advisor with Pro/E software, and discussed the melt flows in the mould. Research the cavitation defect of the jubilance toy's part with different wall thickness, and forecast reasonably position and quantity of the cavitation, and through the change of formation technological parameter, obtained the relatively good formation technological combination, achieved the reduced flaw quantity. Which provided the theory basis to study and removes the product flaw, provided reference for the discussion injection CAE, indicated it had great singlenificance for the visualization experimental study.

An Experimental Evaluation of Vibration-Assisted Injection Molding During Manufacturing

1999 ◽  
Author(s):  
Alan M. Tom ◽  
Akihisa Kikuchi ◽  
John P. Coulter
Keyword(s):  
Experimental Study ◽  
Injection Molding ◽  
Scientific Explanation ◽  
Molecular Level ◽  
Injection Molding Process ◽  
Processing Conditions ◽  
Vibrational Motion ◽  
Current Investigation ◽  
Molding Process ◽  
Polymer Properties

Abstract The current investigation focused on contributing to the development of a novel injection molding process by attempting to understand the scientific relationship that exist between the applied vibrational parameters involved in this process and the effect it has on final product polymeric characterization. Although previous and current attempts at understanding the connection between applied oscillatory or vibrational motion to an injection molding process has shown positive quantitative advantages to final product properties, there still exists a void in the scientific explanation on a molecular level linking these effects. This experimental study, in particular, involved an evaluation on a range of processing conditions applied to Polystyrene and the effects it produced on resultant product quality and polymer properties. Optimal control and mechanical vibrational molding conditions were obtained for Polystyrene. As a result of this, optimal opportunities for initial commercial utilization of the technology can be proposed.

scholarly journals Experimental Study and Numerical Simulation of Injection Molding Process for Special-shaped Plastic Part

2015 ◽  
Vol 9 (1) ◽  
pp. 416-421
Author(s):  
Chen Xiaoyong ◽  
Wang Qian
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Injection Molding ◽  
Orthogonal Experiment ◽  
Coordinate Measuring Machine ◽  
Injection Molding Process ◽  
Plastic Part ◽  
Molding Process ◽  
Measuring Machine ◽  
Cae Technology

Taking the special-shaped plastic part as the research object, experimental study and numerical simulation of injection molding process were performed using numerical simulation technology, orthogonal experiment method, software Moldflow, injection machine and coordinate measuring machine (CMM). The better feeding system and optimal molding process parameters were proposed and qualified products were produced. The research results show that the efficiency of the simulation guidance would be significantly improved by combining the CAE technology and production experience.

Experimental study of penetration interfaces in the overflow fluid-assisted co-injection molding process

2016 ◽  
Vol 36 (2) ◽  
pp. 139-148 ◽  
Author(s):  
Tangqing Kuang ◽  
Chuncong Yu ◽  
Baiping Xu ◽  
Lih-Sheng Turng
Keyword(s):  
Experimental Study ◽  
Injection Molding ◽  
Cross Section ◽  
High Density Polyethylene ◽  
Flow Direction ◽  
Injection Molding Process ◽  
Molding Process ◽  
The Difference ◽  
The Stability ◽  
Plastic Products

Abstract The fluid-assisted co-injection molding (FACIM) process can be used to produce hollow plastic products with outer and inner layers. It can be divided into two categories: water-assisted co-injection molding (WACIM) and gas-assisted co-injection molding (GACIM). An experimental study of penetration interfaces in overflow FACIM was carried out based on a lab-developed FACIM system. High-density polyethylene and polypropylene were used as the outer layer and inner layer plastics, respectively, in the experiments and the injection sequence was reversible. Six cross-section cavities were investigated in the experiments. The penetration behaviors of water and gas in different sequences and cavities were compared and analyzed. The penetration interfaces were characterized by the residual wall thickness (RWT). The experimental results showed that the RWT of the inner layer in WACIM fluctuated along the flow direction, while that in GACIM was more even. The difference of viscosity between the outer and inner layer melts affected the stability of the interface between them. The penetration sections of the inner layer and the gas were closer to the cavity sections in GACIM, while the penetration sections of the inner layer and the water were closer to the circular forms in WACIM.

Filling Behavior of Polymer Material into Sub-^|^mu;m Structure in Injection Molding Process

2013 ◽  
Vol 133 (4) ◽  
pp. 105-111
Author(s):  
Chisato Yoshimura ◽  
Hiroyuki Hosokawa ◽  
Koji Shimojima ◽  
Fumihiro Itoigawa
Keyword(s):  
Injection Molding ◽  
Polymer Material ◽  
Injection Molding Process ◽  
Molding Process
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