TPT March 2019

FOC US ON GERMANY

High-pressure test equipment from Sirius

Finding a weld seam using the SND40

SIRIUS Rohr- und Brennertechnik GmbH offers a variety of high-pressure test equipment for the inside and outside clamping of tubes. The company aims to work particularly closely with its customers and keeps up to date with the latest developments in engineering as well as new high-strength materials for use in its designs and that are being used by its customers. The company philosophy is to cooperate from the beginning of the design process with customers, no matter where they are based around the world and to come up with designs and solutions based on this close cooperation that cater to their needs. This emphasis on research and using the latest technology, as well as adhering to the highest possible safety standards, has led to Sirius Rohr- unde Brennertechnik being a trusted partner for many global companies.

FINDING a weld seam in longitudinally welded tubes or in welded coils and flat material is becoming increasingly important, especially during automated manufacturing processes. The requirements to fulfil certain mechanical properties, such as strength, assume that the weld seam is located in the neutral phase position, for example when bending longitudinally welded tubes. In press lines, the coil material to be processed is increasingly welded automatically at the ends in order to avoid loss of time and material. However, this requires exact information about the location of the weld seams in order to avoid tool damage. Roland Electronic has been heavily involved for many years in finding solutions for the exact localisation of weld seams during modern manufacturing processes. The bases for these non-destructive methods are the metallurgical differences in microstructures of weld seam and the base material. Whether the metals are ferrous or non- ferrous becomes incidental. Explained in a simplified form, a process-specific electrical and/or magnetic field penetrates the material to be tested. With a comparative measurement, a structural deviation (inhomogeneity) to the base material is then sought and recognised. With this measuring principle, it is possible to detect weld seams, which are invisible to the eye. Simple menu navigation makes it possible to find the optimum parameters for the localisation of weld seams in dependence to the product. The Roland Electronic weld seam detection system – SND40 – consists of a sensor, cable connections and a control or evaluation electronics unit. All standard fieldbus versions as well as a simple I/O interface are available as an interface to the higher-level controller.

Sirius Rohr- und Brennertechnik GmbH – Germany Website: www.sirius-rohrtechnik.de

Roland Electronic GmbH – Germany Fax: +49 7236 9392 33 Email: info@roland-electronic.com Website: www.roland-electronic.com

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MARCH 2019