| Autor: |
Elena Kolosova, Mykola Glushchenko, Julia Nosachova, Dmytro Sidorov, Kolosov Aleksandr E |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Mechanical Engineering ISBN: 9783030778224 |
| DOI: |
10.1007/978-3-030-77823-1_17 |
| Popis: |
An engineering approach to estimating the necessary billet’s wall thickness to produce a thermoplastic article in a blow molding process was proposed. The obtained analytical dependences establish the relationship between the diameters, wall thicknesses, and the forming zone’s length for the polymer blank and final blow product. Examples of manufactured bottles for 0.5 L and 1.5 L carbonated beverages show that the accuracy of forecasting the thickness of the wall thickness of a billet is in the range of 12.9%. An example of determining a billet’s wall thickness for obtaining a barrel with a diameter of 0.4 m was given produced by the technology of extrusion blow molding from high-density polyethylene. The analysis of the change in the required wall thickness for the polymer billet was performed depending on its diameter and the wall thickness of the final product. It was shown that the most acceptable size of the diameter for the polymer billet should be selected within 30% of the diameter of the finished product. In this case, with a barrel wall thickness of 2.8 mm, it is necessary to extrudate the billet with a wall thickness of 9 mm. The proposed approach does not require complicated calculations or special software and is convenient for design engineers and production technologists. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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