Modeling and simulation of stretch blow molding of polyethylene terephthalate

2004 ◽  
Vol 44 (8) ◽  
pp. 1460-1472 ◽  
Author(s):  
X.-T. Pham ◽  
F. Thibault ◽  
L-T. Lim
Keyword(s):  
Modeling And Simulation ◽  
Polyethylene Terephthalate ◽  
Blow Molding ◽  
Stretch Blow Molding

Experiment and Simulation of PET Stretch Blow Molding Process

2005 ◽  
Author(s):  
Ji-hu Liu ◽  
Han-Xiong Huang ◽  
Zhan-Song Yin
Keyword(s):  
Polyethylene Terephthalate ◽  
Viscoelastic Model ◽  
Great Influence ◽  
Time Sequence ◽  
Experimental Measurements ◽  
Molding Process ◽  
Blow Molding ◽  
Two Factors ◽  
Stretch Blow Molding ◽  
Good Agreement

This paper deals with various cases for PET (polyethylene terephthalate) in two-stage stretch blow molding process with a transparent mold and a digital camcorder. The simulations were carried out by POLYFLOW software with K-BKZ viscoelastic model. The predicted wall thickness distributions of the formed bottle were found to be in good agreement with those of experimental measurements. Under same reheating treatment, the two factors, both of the stretch rate and the time sequence of the rod movement and the gas blow, show more great influence on the thickness distributions of final bottle than blow pressure. Besides the three cases of the preform free blow, and the air pressure applied after/before the stretching rod touched the bottom of the mold cavity, the interaction of the two factors may cause another phenomenon, which is the stretching rod touches off the preform bottom after the rod pulls it for a moment. The phenomenon easily makes for an eccentricity of the bottle bottom.

Biaxial deformation and experimental study of PET at conditions applicable to stretch blow molding

2011 ◽  
Vol 52 (3) ◽  
pp. 671-688 ◽  
Author(s):  
G.H. Menary ◽  
C.W. Tan ◽  
E.M.A. Harkin-Jones ◽  
C.G. Armstrong ◽  
P.J. Martin
Keyword(s):  
Experimental Study ◽  
Blow Molding ◽  
Biaxial Deformation ◽  
Stretch Blow Molding

scholarly journals STUDY OF DEFECT ON 180 ML HDPE BOTTLES YOGURT PRODUCTS WITH SMC B11 EXTRUSION BLOW MACHINE AT PT X

KREATOR ◽  
2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Tommy Prasetya Kana ◽  
Handika Dany Rahmayanti ◽  
HM Didik
Keyword(s):  
High Density Polyethylene ◽  
Plastic Material ◽  
Production Cycle ◽  
Molding Process ◽  
Plastic Packaging ◽  
Cycle Times ◽  
Blow Molding ◽  
Plastic Bottle ◽  
Extrusion Blow Molding ◽  
Stretch Blow Molding

The type of plastic packaging that is popular in the community is bottle packaging. The plastic material that is generally used to make plastic bottles is High Density Polyethylene (HDPE). The plastic bottle industry in Indonesia usually uses a blow molding process in its production process, where the blow molding process consists of injection blow molding, extrusion blow molding and stretch blow molding. The SMC B11 machine is one of the extrusion blow molding machines used to produce plastic bottle packaging. In producing workpieces, this machine still produces several products that are not in accordance with company standards, including in terms of production cycle times and product defects. Defects or defects that are often encountered include the appearance of spots, bent parison which causes the bottle to bend (the bottle body is thin one side) and blow pin which causes the thread to not fit.Keywords— Bottle, Plastic, Defect, Extrussion Blow Molding

Extrusion, thermoforming and stretch-blow-molding of polypropylene

1982 ◽  
Vol 2 (2) ◽  
pp. 107-140 ◽  
Author(s):  
E. Winkel ◽  
H. Gross ◽  
U. Masberg ◽  
J. Wortberg
Keyword(s):  
Blow Molding ◽  
Stretch Blow Molding
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