KNOWLEDGE ABOUT ELASTOMERS AND SEALINGS MADE CLEAR

Scientific Papers by Bernhard Richter and Ulrich Blobner

Evaluation of stability tests for elastomeric materials and seals

The issue of adequate stability or resistance is one that is repeatedly faced by users of seals.

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Why O-Rings Fail

This paper describes some typical O-Ring failure modes and the root causes behind them. It compares specific failures and provides detailed failure analysis along with steps toward prevention.

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O-ring failure, the true causes

An evaluation of more than 500 failure analyses and recommendations how to avoid O-ring failures.

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Service Life of O-Rings

This paper wants to give a guidance for a realistic assessment of the load limits for NBR-, EPDM-, HNBR- and FKM- O-rings.

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The O-Ring as Standardized Rubber Component

With the new ISO 3601 Part 5 Standard (O-Ring Materials) the O-ring finally becomes a standardized rubber component.

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O-rings in hot water and steam

Hardly any other operating media cause more problems with O-rings than water, steam or aqueous compounds, particularly at higher temperatures.

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Failure Analysis: Chemical attack and swelling

Incorrect media exposure can lead to swelling or severe and irreversible damage of rubbery materials. This article helps to recognize and avoid this problem.

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