The Influence of Stretch Rod Speed on the Relationship between Preblown Bottle Aesthetic Quality and Final Blown Bottle Thickness Profile in Stretch Blow Molding from Preform Process

Abstract:

From a mechanical point of view, the aesthetic quality of preblown PET bottles and thickness profile of final blown PET bottles manufactured in ISBM process are determined by mechanical and thermal response of blown preforms. From the microscopic point of view the biggest influence on the mechanical and thermal properties of PET bottles have orientation and crystallization processes. From a technological point of view, the aesthetic quality and thickness profile is mainly determined by the preforms initial structure of the PET material, preforms thermal profile heating, stretch rod speed, preblowing air pressure, and the so-called delay. More specifically, the properties of PET bottles affects as many as 14 variables, however, in this paper they are not individually discussed. In the paper it will be described the influence of stretch rod speed on relationship between preblown bottle aesthetic quality and final blown bottle thickness profile in SBM from preform process.

• Periodical: Applied Mechanics and Materials (Volume 797)
• Pages: 383-390
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.797.383
• Online since: November 2015
• Authors: Paweł Wawrzyniak*
• Keywords: CSD Bottles, Final Blown Bottles Thickness Profile, PET Material, Preblown Bottle Aesthetic Quality, SBM Process

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