Bottle production and preforms: a design guide for PET by Ottmar Brandau

By Ottmar Brandau

As a expert to the plastics undefined, Ottmar Brandau’s concentration is on utilizing his engineering knowhow and creation administration adventure to enhance caliber and productiveness, decrease cycle time and introduce secondary procedures reminiscent of inline printing. This ebook is a completely useful guide that gives engineers and executives with the toolkit to enhance construction and engineering facets of their personal companies – saving funds, expanding output and bettering competitiveness by means of adopting new technologies.

In this e-book, Brandau covers the engineering features of bottle construction and the suitable creation tactics (focusing on blow molding), in addition to plant structure and association and creation administration, to provide the definitive instruction manual for engineers and executives alike.

  • Learn the tips of the exchange from an skilled engineer and manager
  • Save cash: sensible thoughts to enhance cycle times
  • Increase productiveness: increase plant format and association and enforce secondary approaches comparable to inline printing

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Additional resources for Bottle production and preforms: a design guide for PET packaging

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The mere constructive design of the bottle. 5). ” These systems are thus not only suitable for a description of the cavity but also allow the design of the complete mold with all its components and the related cooling. 14 Bottle rendering: Bottles are often rendered within CAD programs to check the aesthetics. (Pictures courtesy of Krones AG). 20 Bottles, Preforms and Closures One important aspect of the CAD output is the visualization of the bottle design in various forms for the approval process.

A more sophisticated variant will have automatic parison feeding and a continuous oven, although it will still have only a single blowing station. This setup allows several preforms to pass through the oven and be inflated successively. The performance of the blowing station can even be as high as that achieved with rotary machines. However, even smaller rotary machines with two to four blowing stations and a continuous oven section are used as laboratory machines. Wherever possible, the laboratory machine should be of the same design as the machine that will later be used for series production.

To a certain 1: PET Beverage Bottles 33 extent, an appropriate positioning of the mold parting line may also be used to accommodate inevitable undercuts. Also the position of the parting line between the bottle body and the base must be carefully selected, which again is not only a matter of styling but also of engineering. For example, the height of the base and/or the tapering between the feet of a petaloid base will clearly have an impact on the properties of the base of the bottle. Finally, the maximum bottom stroke of the blow molding machine must be taken into account when determining the position of this parting line.

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