TPT January 2008

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Coating, Jacketing & Galvanizing Technology
January 2008 94 ›
Deutsche Edelstahlwerke, Germany, is
a member of the Schmolz + Bickenbach
AG group of companies, a producer,
processor and distributor of special steel
long products. The company offers a ‘one-
stop-shop’ for heat treatment processes,
including plasma nitriding.
Zwick GmbH & Co KG, Germany, has
equipped the company’s laboratory with
all of its hardness testers, the most recent
being the ZHU250 TOP universal hardness
tester. This machine has expanded the
capability of the laboratory to carry out
Rockwell, Vickers, and Brinell tests, and
includes an innovative revolver system
incorporating four indenters.
Similar systems require three or more
objective lenses to cover the application
range but, due to Zwick’s digital zoom
technology, the ZHU250 requires only two.
This enables a fast throughput of tests,
and many different types of test can be
carried out on the same machine with high
accuracy and repeatability. The test results
are also sent to the host computer system
via a computer interface.
“A major reason for purchasing the ZHU250
was the excellent manufacturing quality,
and the reliability of our existing Zwick Roell
products,” explained Mr Wessel Völcker,
Deutsche Edelstahlwerke’s production
manager.
Zwick GmbH & Co KG – Germany
Fax: +49 7305 10 200
Email:
Website:
Deutsche Edelstahlwerke GmbH
– Germany
Fax: +49 2302 29 4000
Website:
Effective testing for heat treatment processes
fi The Zwick Roell ZHU250 TOP in use