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SMS Meer Subsidiary to Supply Spiral Pipe Welding Plant for Shengli
10/12/2010 - SMS Meer subsidiary PWS GmbH will supply a complete two-stage spiral pipe welding plant for the Shandong Shengli Steel Pipe Co., Ltd., enabling the production high-alloy steel pipe from 24 to 64 inches in diameter.
The Shandong Shengli Steel Pipe Co., Ltd., China, placed an order with SMS Meer subsidiary PWS GmbH, Germany, for the supply of a complete two-stage (off-line) spiral pipe welding plant.
The integrated plant solution will comprise a spiral pipe forming and tack welding machine for forming and prewelding of the hot-rolled steel strip as well as down-line finish-welding stands, and it will feature energy-saving welding technology from PWS.
“For our welding technology we employ welding current sources without transformers,” said PWS Managing Director, Michael Stark. “The important parameters for a stable welding process that are normally generated by means of electrical components in the welding current source are now modulated flexibly by power electronics. Through the elimination of the welding transformer and other electrical components in our welding technology, we achieve efficiencies of over 90%. The result is an energy saving of over 30% compared with the older technology.”
The technology also enables a significant increase in the welding speed while maintaining a stable welding process.
The new plant will enable Shengli to produce high-quality, high-alloy steel pipe from 24 to 64 inches in diameter that will be employed predominantly for natural gas and oil pipelines. Commissioning is scheduled for September 2011.
The Shandong Shengli Steel Pipe Co., Ltd., part of the Shengli Oil and Gas Pipe Holdings Limited, supplies pipes predominantly for the nearby Shengli oilfield, the second-largest petroleum base in China. The field is located near the city of Dongying in the eastern Chinese province of Shandong. The petroleum reserves of the Shengli oilfield are estimated at around 4.8 billion tonnes and the natural gas reserves roughly 230 billion cubic meters.
PWS GmbH is a company of the SMS group, which is, under the roof of the holding SMS GmbH, a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It consists of the two Business Areas SMS Siemag and SMS Meer. In 2009, some 9000 employees worldwide generated a turnover of EUR 3.9 billion.
