Field test methods for aluminum gas cylinders

Ursula Koerner; Florian Scherer; Michaela Lagleder

doi:10.3139/120.110673

Article

Field test methods for aluminum gas cylinders

Ursula Koerner , Florian Scherer and Michaela Lagleder

Published/Copyright: May 16, 2018

Published by

Become an author with De Gruyter Brill

Submit Manuscript Author Information

From the journal Materials Testing Volume 57 Issue 1

Abstract

ISO standards for gas cylinders made from aluminum alloys generally require heat treatment after the forming process. Such heat treatment is a costly part of the manufacturing process. Particularly due to increasing international trade, market-surveillance authorities need simple and reliable methods to field-test cylinders for proper heat treating. By the present contribution the difference in strength of heat-treated and non-heat-treated gas cylinders is exemplarily shown and several material analysis methods are investigated for their suitability as field tests.

Kurzfassung

ISO Normen für Gasflaschen aus Aluminiumlegierungen schreiben allgemein eine Wärmebehandlung nach dem Umformprozess vor. Solche Wärmebehandlungen stellen einen kostenintensiven Teil des Herstellungsprozesses dar. Teilweise bedingt durch den zunehmenden internationalen Handel brauchen die marktüberwachenden Behörden einfache und verlässliche Verfahren um Gasflaschen hinsichtlich einer geeigneten Wärmebehandlung im Feldversuch zu überprüfen. Im vorliegenden Beitrag wird der Unterschied in der Festigkeit von wärmebehandelten und nicht wärmebehandelten Gasflaschen prinzipiell gezeigt und verschiedene Verfahren hinsichtlich ihrer Eignung in Feldversuchen untersucht.

*Correspondence Address, Dr.-Ing. Ursula Körner, Division 3.2, BAM – Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12205 Berlin, Germany, ursula.koerner@bam.de

Dr. Ursula Körner, born 1963, studied Energy and Process Engineering at the Technical University of Berlin, Germany. After that she has been a research assistant at the Institute of Plant and Safety Technology at the TU Berlin. Since 2003, she has been employed at BAM. From 2006 to 2010 she was head of the working group Quality Assurance and Monitoring. Since 2010, she has been consultant in the Division 3.2 Tanks for Dangerous Goods and Accidental Mechanics.

Dr. Florian Scherer, born in 1980, studied Mechanical Engineering at the Technical University of Darmstadt and finished his degree as Dipl.-Ing. in Mechanical Engineering in 2005. In 2006, he also achieved his master degree in Mechanical and Process Engineering. From 2006 to 2012 he worked as a research associate at the TU Berlin in the field of combustion engines. He achieved his doctoral engineering degree at the TU Berlin in 2014. Since 2013, he has been employed at BAM Federal Institute of Materials Research and Testing as a scientist in Division 3.2.

Michaela Lagleder, born in 1962, graduated as Metallographic Technician from Lette-Verein in 1982 and worked for Kraftwerksunion (Siemens) from 1983 until 1988. Since 1989 she has been employed at BAM.

References

1 N. N.: Recommendations on the Transport of Dangerous Goods, Model Regulations, United Nations, New York and Geneva (2013)Search in Google Scholar

2 DIN EN ISO 7866: Gas Cylinders – Refillable Seamless Aluminum Alloy Gas Cylinders – Design, Construction and Testing, Beuth, Berlin, Germany (2012)Search in Google Scholar

3 DIN EN ISO 11118: Gas Cylinders – Non-Refillable Metallic Gas Cylinders – Specification and Test Methods, Beuth, Berlin, Germany (2009)Search in Google Scholar

4 DIN EN ISO 20703: Gas Cylinders – Refillable Welded Aluminum-Alloy Cylinders – Design, Construction and Testing, Beuth, Berlin, Germany (2006)Search in Google Scholar

5 C. M.Krüger: Experimentelle Untersuchungen zum Einfluss der Wärmebehandlung auf die Festigkeitseigenschaften von Flaschen aus Aluminiumlegierungen, BSc Thesis, Beuth University of Applied SciencesBerlin, Germany (2012)Search in Google Scholar

6 F.Ostermann: Anwendungstechnologie Aluminium, Springer, Berlin, Germany (2007)Search in Google Scholar

7 ADR – European Agreement concerning the International Carriage of Dangerous Goods by Road, United Nations, New York and Geneva (2013)Search in Google Scholar

8 DIN EN ISO 6508-1: Metallic Materials – Rockwell Hardness Test – Part 1: Test Method, Beuth, Berlin, Germany (2006)Search in Google Scholar

9 DIN EN ISO 6507-1 to 4: Metallic materials – Vickers hardness test, Beuth, Berlin, Germany (2005)Search in Google Scholar

10 G.Petzow: Metallographisches, keramographisches, plastographisches Ätzen, 6^th edition, Borntraeger, Stuttgart, Germany (2006)Search in Google Scholar

Published Online: 2018-05-16

Published in Print: 2015-01-05

You are currently not able to access this content.

Articles in the same Issue

https://doi.org/10.3139/120.110673