scholarly journals The Influence of Injection Molding Parameter on Properties of Thermally Conductive Plastic

2017 ◽  
Vol 203 ◽  
pp. 012018
Author(s):  
N. Hafizah Azis ◽  
M. Zulafif Rahim ◽  
Nasuha Sa’ude ◽  
N. Rafai ◽  
M.S. Yusof ◽  
...  
Keyword(s):  
Injection Molding ◽  
Thermally Conductive ◽  
Molding Parameter

scholarly journals Constant Temperature Approach for the Assessment of Injection Molding Parameter Influence on the Fatigue Behavior of Short Glass Fiber Reinforced Polyamide 6

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1569
Author(s):  
Selim Mrzljak ◽  
Alexander Delp ◽  
André Schlink ◽  
Jan-Christoph Zarges ◽  
Daniel Hülsbusch ◽  
...  
Keyword(s):  
Injection Molding ◽  
Glass Fiber ◽  
Process Parameters ◽  
Fatigue Properties ◽  
Injection Molding Process ◽  
Molding Process ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Molding Parameter ◽  
Short Glass

Short glass fiber reinforced plastics (SGFRP) offer superior mechanical properties compared to polymers, while still also enabling almost unlimited geometric variations of components at large-scale production. PA6-GF30 represents one of the most used SGFRP for series components, but the impact of injection molding process parameters on the fatigue properties is still insufficiently investigated. In this study, various injection molding parameter configurations were investigated on PA6-GF30. To take the significant frequency dependency into account, tension–tension fatigue tests were performed using multiple amplitude tests, considering surface temperature-adjusted frequency to limit self-heating. The frequency adjustment leads to shorter testing durations as well as up to 20% higher lifetime under fatigue loading. A higher melt temperature and volume flow rate during injection molding lead to an increase of 16% regarding fatigue life. In situ Xray microtomography analysis revealed that this result was attributed to a stronger fiber alignment with larger fiber lengths in the flow direction. Using digital volume correlation, differences of up to 100% in local strain values at the same stress level for different injection molding process parameters were identified. The results prove that the injection molding parameters have a high influence on the fatigue properties and thus offer a large optimization potential, e.g., with regard to the component design.

Effects of molding on property of thermally conductive and electrically insulating polyamide 6–based composite

2018 ◽  
Vol 32 (9) ◽  
pp. 1190-1203 ◽  
Author(s):  
Xuping Yang ◽  
Wenbin Yang ◽  
Jinghui Fan ◽  
Juying Wu ◽  
Kai Zhang
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Injection Molding ◽  
Annealing Time ◽  
Polyamide 6 ◽  
Molding Pressure ◽  
Hot Press ◽  
Molding Method ◽  
Thermally Conductive ◽  
Press Molding

Thermally conductive and electrically insulating polyamide 6 (PA6) matrix quaternary composites were prepared by hot press molding and injection molding, respectively. The quaternary composites were composed of zero-dimensional aluminum oxide particle, one-dimensional silicon carbide whisker, two-dimensional flake graphite, and PA6 resin matrix. Morphology, structure, density, thermal conductivity, volume electrical resistivity, and tensile strength of two types of composites were characterized by scanning electron microscopy, X-ray diffractometer, thermal conductivity tester, high resistance micro-current tester, and tensile tester. The results showed that crystallinity, thermal conductivity, density, and tensile strength of hot press molding samples were superior to those of samples made by injection molding method. This is due to that hot press molding method can provide higher molding pressure and longer annealing time than injection molding. The mechanism could be explained that the performances of the composites were promoted by increasing molding pressure and annealing time.

The investigation on PVT control method establishment for scientific injection molding parameter setting and its quality control

2020 ◽  
Vol 60 (11) ◽  
pp. 2895-2907
Author(s):  
Yung‐Hsiang Chang ◽  
Tzu‐Hsiang Wei ◽  
Shia‐Chung Chen ◽  
Ying‐Fan Lou
Keyword(s):  
Quality Control ◽  
Injection Molding ◽  
Control Method ◽  
Parameter Setting ◽  
Molding Parameter

scholarly journals Study of the Effects of Injection Molding Parameter on Weld Line Formation

2017 ◽  
Vol 184 ◽  
pp. 663-672 ◽  
Author(s):  
Azieatul Azrin Dzulkipli ◽  
M. Azuddin
Keyword(s):  
Injection Molding ◽  
Weld Line ◽  
Line Formation ◽  
Molding Parameter

A Study on the Interface of Injection Molding Parameter for Monitoring and Control

2014 ◽  
Vol 31 (7) ◽  
pp. 585-590
Author(s):  
E.Y. Heo ◽  
D.H. Moon ◽  
C.S. Park ◽  
J.M. Kim ◽  
C.S. Lee
Keyword(s):  
Injection Molding ◽  
Monitoring And Control ◽  
Molding Parameter ◽  
And Control
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