No abstract

PET prefom surface temperature distribution is a key factor for getting the better quality of construction a bottle by stretch blow molding (SBM) machine. To get a better temperature distribution, different types of prefom under different number of infrared lamps heating conditions are worth to investigate the position of each lamp as well as its power intensity. In this study, we first try to use adaptive finite volume method to estimate the proper intensity of each lamp so that the combination strength will make good result about the temperature distribution. Then we make experiments to confirm each case. We have five, six, and seven heating lamps cases to present. With these estimations, we find that five lamps case can do equal quality about the temperature distribution comparing with six and seven lamps cases. This means that we offer a method for finding one saving energy way to produce PET bottle by SBM machine. A more detail analysis about inside PET bottle temperature distribution will be deliberated in future.

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.