The effects of gas counter pressure and mold temperature variation on the surface quality and morphology of the microcellular polystyrene foams

2012 ◽  
Vol 127 (6) ◽  
pp. 4769-4776 ◽  
Author(s):  
Shia-Chung Chen ◽  
Ping-Shun Hsu ◽  
Shyh-Shin Hwang
Keyword(s):  
Temperature Variation ◽  
Surface Quality ◽  
Mold Temperature ◽  
Counter Pressure

Variable mold temperature to improve surface quality of microcellular injection molded parts using induction heating technology

2008 ◽  
Vol 27 (4) ◽  
pp. 224-232 ◽  
Author(s):  
Shia-Chung Chen ◽  
Yu-Wan Lin ◽  
Rean-Der Chien ◽  
Hai-Mei Li
Keyword(s):  
Surface Quality ◽  
Induction Heating ◽  
Mold Temperature ◽  
Molded Parts ◽  
Injection Molded ◽  
Heating Technology

Influence of rapid mold temperature variation on surface topography replication and appearance of injection-molded parts

CIRP Annals ◽  
2012 ◽  
Vol 61 (1) ◽  
pp. 539-542 ◽  
Author(s):  
G. Lucchetta ◽  
M. Fiorotto ◽  
P.F. Bariani
Keyword(s):  
Surface Topography ◽  
Temperature Variation ◽  
Mold Temperature ◽  
Molded Parts ◽  
Injection Molded

DESIGN AND PRODUCTION OPTIMIZATION OF PP 20% TALC ADDITIVE FILTER WITH PLASTIC INJECTION MOLDING MACHINE

2021 ◽  
pp. 2150113
Author(s):  
YUSUF OZBAKIS ◽  
ENGIN NAS
Keyword(s):  
Injection Molding ◽  
Design Optimization ◽  
Surface Quality ◽  
Waiting Time ◽  
Mold Temperature ◽  
Plastic Injection Molding ◽  
Effective Parameter ◽  
Molding Machine ◽  
Fabric Strength ◽  
Plastic Injection

In the paper, the design optimization of the food-contact water tank filter used in industrial kitchen products was made and produced in plastic injection molding machine with different parameters. The effects of production parameters on product weight, fabric filter strength (tearing), production time and surface quality (burrs and gas gap) were investigated experimentally and statistically. The design of the experiments was prepared with the Taguchi L[Formula: see text] orthogonal array. Experiment parameters are determined as injection speed (A), holding press (B), holding speed (C), mold temperature (D), melting temperature (E) and compression waiting time (F). As a result, 154% improvement was achieved in the fabric strength as a result of design optimization. As a result of the optimization of the injection parameters of the product, when the response tables were examined, it is determined that the greatest value of filter fabric strength is 298[Formula: see text]N in A2B2C2D1E1F3 parameters. When ANOVA results are analyzed, the most effective parameter for fabric strength and surface quality was determined as mold temperature with 36.38% and compression waiting time with the lowest effective parameter as 0.08%.

Establishment of Gas Counter Pressure Technology and Its Application to Improve the Surface Quality of Microcellular Injection Molded Parts

2011 ◽  
Vol 26 (3) ◽  
pp. 275-282 ◽  
Author(s):  
S. C. Chen ◽  
P. S. Hsu ◽  
Y. W. Lin
Keyword(s):  
Surface Quality ◽  
Counter Pressure ◽  
Molded Parts ◽  
Injection Molded

Research Progress of Improving Surface Quality of Microcellular Foam Injection Parts

2011 ◽  
Vol 66-68 ◽  
pp. 2010-2016 ◽  
Author(s):  
Yue Wang ◽  
Guang Hong Hu
Keyword(s):  
Injection Molding ◽  
Surface Quality ◽  
Dimensional Stability ◽  
Surface Defects ◽  
Research Progress ◽  
Microcellular Foam ◽  
Counter Pressure ◽  
Foam Injection Molding ◽  
Application Scope

Microcellular foam injection parts have many advantages such as saving material and energy, reducing cycle time, and processing excellent dimensional stability. Despite these advantages, the low surface quality problems limit its application scope seriously. In this study, the microcellular foam injection molding principle and some surface defects were introduced, and the technologies to improve surface quality, such as Gas Counter Pressure (GCP), Rapid Heat Cycle Molding (RHCM), and Film Insulation were summarized in detail. Finally, the prospect of CAE technologies about microcellular foam injection molding was proposed.

Rapid mold temperature variation for assisting the micro injection of high aspect ratio micro-feature parts using induction heating technology

2006 ◽  
Vol 16 (9) ◽  
pp. 1783-1791 ◽  
Author(s):  
Shia-Chung Chen ◽  
Wen-Ren Jong ◽  
Yaw-Jen Chang ◽  
Jen-An Chang ◽  
Jin-Chuan Cin
Keyword(s):  
Aspect Ratio ◽  
Temperature Variation ◽  
Induction Heating ◽  
High Aspect Ratio ◽  
Mold Temperature ◽  
Heating Technology

Using a Visualization Mold to Discuss the Influence of Gas Counter Pressure and Mold Temperature on the Fountain Flow Effect

2018 ◽  
Vol 33 (2) ◽  
pp. 255-267 ◽  
Author(s):  
W.-R. Jong ◽  
S.-S. Hwang ◽  
C.-C. Wu ◽  
C.-H. Kao ◽  
Y.-M. Huang ◽  
...  
Keyword(s):  
Mold Temperature ◽  
Flow Effect ◽  
Fountain Flow ◽  
Counter Pressure

scholarly journals Foaming morphology control of microcellular injection molded parts with gas counter pressure and dynamic mold temperature control

2014 ◽  
Author(s):  
Tai-Yi Shiu ◽  
Chao-Tsai Huang ◽  
Rong-Yu Chang ◽  
Shyh-Shin Hwang
Keyword(s):  
Temperature Control ◽  
Morphology Control ◽  
Mold Temperature ◽  
Counter Pressure ◽  
Molded Parts ◽  
Injection Molded
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