TPT July 2013

Technology News

New project for straightening line for pipes up to 340mm

The machine will be designed with particularly short wheelbase and with large rolls surface. This new general geometry brings particularly important advantages in terms of quality of straightening, particularly on the pipe ends.

by Borusan Mannesmann Group for technological development of a new straightening line project for pipes of maximum diameter 340mm destined for the American market. Cartacci can boast a wide knowledge in the construction of straightening machines designed to meet all API standards: from 5D (for drill pipes) to 5CT (for tubing and casing) and 5L (for line pipes).

CARTACCI Srl, an Italian company, keeps on searching for the new technical solutions for new projects of finishing lines for tubes. The experience obtained in almost 50 years is the important basis for the complete innovation of equipment design that meets the most demanding requirements of the market. Recently Cartacci has been commissioned

Cartacci Srl – Italy Website: www.cartacci.com

Contactless straightness measurement for rod and

steel pipes LASER measuring technology firm LAP has developed a new system for measuring the straightness of pipes and steel rod contactlessly. The Straightcheck contactless measuring system by LAP provides pipe and rod manufacturers with potential for online quality assurance – without time consuming manual measurement. Many pipe and rod steel manufacturers are repeatedly confronted with the same problem. Does the straightened pipe satisfy the customer’s quality standards? Straightness is a significant

and distribution for the steel industry at LAP. “During the straightening process the pipe or rod turns at roughly 400 revolutions per minute on its longitudinal axis. The only logical solution therefore was to use our sensors to measure the straightness. We obtain this information by means of synchronised real time measurement. For this measurement to be possible online, all sensors must be fully sychronised when the scan is in progress. Straightcheck software provides data directly after the first straightening operation whether or not the product meets specifications. This also assures the production staff of the product as it passes into other manufacturing processes. In general, no changes to existing production lines are required.” The laser measuring system can determine the straightness of extremely long pipes and rod steel, even for lengths up to 30 metres. To do so, the measuring range, ie the overall length of the products, is subdivided into one, two or three metre long segments. These are then measured separately in order to determine the straightness of the individual sections of the workpiece. LAP GmbH Laser Applikationen – Germany Email: t.armbruster@lap-laser.com Website: www.lap-laser.com

criterion. If this is not satisfied, the rod steel or pipes cannot be sold. LAP has found a way around this problem with the Straightcheck laser measurement system. This dispenses with time consuming and complex checks using a straight edge. The LAP solution can be integrated into the manufacturing process directly. Existing systems do not need to be adapted. “The METIS sensors in the Straightcheck system measure the straightness of steel products,” explains Frank Lohmann, who works in sales

The Straightcheck contactless measuring system

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J uly 2013