scholarly journals Optimisation of Preform Temperature Distribution For the Stretch-Blow Moulding of PET Bottles

2008 ◽  
Vol 1 (S1) ◽  
pp. 1023-1026 ◽  
Author(s):  
M. Bordival ◽  
Y. Le Maoult ◽  
F. M. Schmidt
Keyword(s):  
Temperature Distribution ◽  
Blow Moulding ◽  
Pet Bottles

A study of blow moulding simulation and structural analysis for PET bottles

2009 ◽  
Vol 7 (1) ◽  
pp. 69-76 ◽  
Author(s):  
H Haddad ◽  
S Masood ◽  
D U Erbulut
Keyword(s):  
Structural Analysis ◽  
Blow Moulding ◽  
Pet Bottles

scholarly journals Modelling the Heat During the Injection Stretch Blowing Moulding: Infrared Heating and Blowing Modelling

2012 ◽  
Author(s):  
Yun Mei Luo ◽  
Luc Chevalier ◽  
Françoise Utheza
Keyword(s):  
Temperature Distribution ◽  
Infrared Camera ◽  
Infrared Heating ◽  
Initial Temperature Distribution ◽  
Final Thickness ◽  
Pet Bottles ◽  
The Monte Carlo Method ◽  
Element Approach ◽  
Best Fit ◽  
Initial Heating

Effects of temperature: initial heating conditions or self heating during the process, are very important during the injection stretch blow moulding (ISBM) process of PET bottles. The mechanical characteristics of the final products, which are mainly controlled by the final thickness and the orientation of the molecular chains, depend strongly on the process temperature. Modelling the heat transfer during the ISBM process is therefore necessary. In the first part of this paper, an experimental study is presented in order to measure the initial temperature distribution and to identify the thermal properties of the PET. An infrared camera has been used to determine the surface temperature distribution of the PET sheets which are heated by infrared (IR) lamps. The Monte Carlo method is used to identify the parameters best fit from the temperature evolution. In the second part, a thermo-viscohyperelastic model is used to predict the PET behaviour, taking into account the strain rate and temperature dependence. A finite element approach implemented in matlab is used to achieve the numerical simulation.

A Computer Simulation Model for the Stretch Blow Moulding Process of Polymer Containers

2010 ◽  
Author(s):  
J. A. W. M. Groot ◽  
C. G. Giannopapa ◽  
R. M. M. Mattheij
Keyword(s):  
Computer Simulation ◽  
Simulation Model ◽  
Large Deformations ◽  
Material Model ◽  
Computer Simulation Model ◽  
Viscoplastic Material ◽  
Moulding Process ◽  
Blow Moulding ◽  
Pet Bottles ◽  
Isothermal Fluid

Stretch blow moulding is a widely used technique e.g. for the production of PET bottles. In a stretch blow moulding process a hot preform of polymer is simultaneously stretched and blown into a mould shape. The process takes place at a fast rate and is characterised by large deformations and temperature gradients. In this paper the computer simulation model presented in is applied to the stretch blow process for the production of PET bottles. The model was previously developed by the authors for the simulation of 2D axial-symmetrical blow processes for the production of glass containers. The model is based on finite element methods and uses a level set method to track the interfaces between air and the material. The simulation model is modified in order to correctly describe the material behaviour of PET, take into account the stretch process and substitute the process parameters for stretch blow moulding. Furthermore, it is verified that the PET behaviour can be modelled as a non-newtonian, isothermal fluid flow, based on a viscoplastic material model. An application presented is the stretch blow moulding of a realistic PET water bottle.

The Study of Infrared Heating on PET Bottles by Experiment and Adaptive Finite Volume Method

2012 ◽  
Vol 591-593 ◽  
pp. 750-753 ◽  
Author(s):  
Yi Chern Hsieh ◽  
Minh Hai Doan ◽  
Thi Thanh Hoi Pham
Keyword(s):  
Temperature Distribution ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Infrared Camera ◽  
Object Oriented Programming ◽  
Infrared Heating ◽  
Proper Position ◽  
Pet Bottles ◽  
Key Factor ◽  
Volume Method

Stretch-Blow moulding (SBM) fabricate process is a well known method to produce PET bottles. During the construction procedure, PET surface temperature distribution controlled by infrared heating is the key factor about manufacture technique for the better quality of PET. This paper focuses on how to measure and estimate temperature distribution on the surface of semi-transparent polymers so that we can make sure the proper position and intensity of the infrared lamb. We use infrared camera to detect the real temperature distributions and C++ object-oriented programming to estimate the infrared radiation (IR) results by adaptive finite volume method (Adaptive FVM). The numerical results have been compared with experimental results and the consequence is satisfied. Multiple lambs’ cases and the interior temperature distribution in PET will be discussed in future.

Coupled temperature–displacement modelling of injection stretch-blow moulding of PET bottles using Buckley model

2004 ◽  
Vol 153-154 ◽  
pp. 20-27 ◽  
Author(s):  
Z.J. Yang ◽  
E. Harkin-Jones ◽  
G.H. Menary ◽  
C.G. Armstrong
Keyword(s):  
Blow Moulding ◽  
Pet Bottles
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