The latest news from American Glass Research.

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Volume 9 / Issue 1

Read our just released white paper "Stresses Caused by Thermal Expansion Differences Between an Applied Ceramic Label and Soda-lime-silica Glass Surfaces" by AGR Senior Scientists Wenke Hu and Gary Smay published in the January/February issue of Glass Worldwide Magazine. Download HERE.

White Paper Abstract:

A finite element computer analysis was undertaken to define the stresses that are generated when an applied ceramic label (ACL) is fused onto a glass substrate.  If the coefficient of thermal expansion of the ACL was greater than the glass, tensile stresses were created in the ACL and compressive stresses were created in the glass.  If the coefficient of thermal expansion of the ACL was less than the glass, the opposite stress pattern was observed.  It was also found that the stress in the ACL was 6 to 16 times greater than the magnitude of stress that was present in the glass surface, the actual difference being dependent on the thicknesses of the ACL and glass.  Therefore, even if moderate level compressive stresses are observed in the glass, significant tensile stresses will be present in the ACL which could prove detrimental to the overall performance of a decorated item.  

Read the complete paper HERE. If you have any questions Contact Us. 


Announcing Expanded Proof-of-Design Testing Service

Predictive testing is key to ensuring optimum bottle performance on the filling line and in the hands of the consumer. Proof-of-design testing is also ideal for qualifying new suppliers, new lines, or new molds. In addition to routine QC pass/fail testing, key tests include dimensions, performance, thickness, annealing, and coating evaluation. 

We now have three different options to ensure comprehensive qualification testing:

1. Filling Line Performance Evaluation: A logical next step after a computer design analysis. Our standard proof-of-design test plan probes all critical aspects of container quality and compares test results to anticipated filling line processing conditions to predict performance.

2. Filling Line Performance Evaluation Plus: Same as above, but tests and measurements are performed on a full set-out (all cavities). The results are then compared to customer specifications and anticipated filling line processing conditions.

3. As-Manufactured Quality Evaluation: Test results and measurements compared to as-manufactured specifications. Any corrective actions that may be required are identified, aiding the glass manufacturer in eliminating defects or meeting internal pass levels.

Contact Us to discuss your needs and the right service for you.
"The Do's and Don'ts of Lightweighting Liquor Bottles" webinar now available on-demand

This new on-demand webinar addresses cost benefits, time saving suggestions, and key analytical insights for successful glass liquor bottle lightweighting initiatives.

Bill Slusser, Director of Research, conducted the one-hour webinar.

The webinar is self-paced and available on-demand. The cost is $95 per person. Learn more, see our free video trailer or register HERE.  Group discounts are available. Contact Us if you have any questions.
AGR In-Person & On-Demand Training Update 

The 2022 in-person training schedule is now underway and  available on our website for registrations.  It begins in February at our testing laboratory in Delft, the Netherlands. 

Next, we will present in Lake Ammersee outside of Munich, Germany in March.  Both our Fracture 1 and Fracture 2 Seminars are already sold out and Fracture 1, when it returns in September, has only two seats remaining.

This is followed by our presentation in Montecchio, Italy in May and our first half European schedule wraps up in Krakow, Poland in June.  See our Training Schedule for all Seminars, dates and locations.

In-Person Training on our Butler, PA, USA campus gets underway in April with "Fracture 1", "Fracture 2", "Stones in Glass" and "Batch and Furnace Operations".
Our complete 2022 in-person training schedule is available HERE with all dates and locations. 

See video trailers and get more information for all of our on-demand E-seminars including:
  • Sand to Shelf: Essentials of Glass Containers
  • Bottle Breakage 101
  • Do's and Don'ts of Lightweighting
  • Pharmaceutical Glass Flaws
  • Stone Analysis Essentials
  • Fusing Container Design and Branding
  • Coatings - Purpose & Performance
  • Do's and Don'ts of Lightweighting Liquor Bottles
Private customized on-location training is also now available.

To learn more about all of our in-person seminars, visit our Seminar Catalogue and for on-demand seminars our E-seminars site. If you have questions or would like to discuss Private Training Contact Us 
American Glass Research
603 Evans City Road, Butler, PA 16001
Tel: +1 (724) 482-2163
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American Glass Research · 603 Evans City Road · Butler, PA 16001 · USA

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