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Update

Posted by: Rolf Diederichs , E-mail: rd@ndt.net, on June 08, 1998 at 12:44:31:

In Reply to: Re: Nondestructive testing of railroad wheels at the German Bahn AG posted by : Christian Grosse on June 08, 1998 at 11:06:46:

Since 1992 the Deutsche Bahn AG used a system from the company
Hegenscheidt (Erkelenz Germany).
The system works with EMAT probes generating surface waves (see Hintze's article [1]).
The method was licensed from the FhG IZfP Saarbrücken 10 Years ago.

Today we received also some officially details from
Christine Geißler-Schild
Sprecherin Forschung und Technologie
Tel. 069 / 265 68 87

The Inspectomat was applied in the 2 days inspection (approx. 3.500),
However, when discovered the problems of this method (details see 1.)
the system was switched off (the exact date we will receive later,
we assume this happened in 1997).

From this time an ultrasonic inspection was ONLY applied within the
big inspection in the refurbishing plant in Nürnberg
(350.000 - 400.000 km approx.. in a period of 6-7 month).

Rolf Diederichs

BTW: Today you may see inforamtion in the TV ZDF Heute Journal at 21:45.

1. http://www.ndt.net/article/report/df97/hintze/hintze_d.htm


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