TPT May 2011

管道制造用新型检测工具 在多次参观全球轧管机后，Optical Metrology Services (OMS)公司注意到用于管道检测的工具还不能达到石 油和天然气领域高要求客户所期望的标准。 其中一个例子就是质量控制经理解释的管道平直度是怎么测量的一个案例。他举例说明了，精整线在管道两 端是怎么加固的，生产线之间的间隙和管子是怎么测量的。很遗憾的是当他在问检查员时，检查员回答说通 过目测来估计距离。主管要求他找一把尺子时，他却找不到。 很多Pipe CheckerTM工具已被OMS开发用来为钢管厂提供准确、可追溯性的质量控制信息。管道平直度是 使用调校过的激光工具测量的，该工具使操作者可以方便地确定沿管道长度任何点的管道平直度偏离。 OMS创始人 Dr Clarke评价到：“我个人对钢管厂没有像这样的技术来更详细的理解他们的制造过程感到很惊 讶。我们通常被带到提供关于一些尺寸缺少的信息，如管道形状、椭圆度、端部方形度、坡口形状、焊接形 状以及扩孔，不一而足。” 管子平直度检测工具包括靠磁性夹持到管道的激光器。激光束被操纵，直到其与激光束高度恰好相同的管道 另一端的线对齐。当激光束是笔直的情况下，不会在重力作用下弯曲，而且不被风吹偏离，这时，移动管道 两端的测量装置使管道平直度通过数字读出。 Optical Metrology Services – UK Fax: +44 8700 940014 GE helps Europipe maintain technology leadership AA ultrasonic testing machine from GE’s Inspection Technologies business is helping Europipe to maintain both its competitive advantage and its technology leadership in the manufacture of large diameter, welded steel pipe. The automated inspection system was installed at Europipe’s Muelheim plant (UOE-line) two years ago and has been used to ensure that Europipe consistently matches customers’ specifications and manufactures high quality pipe, fit for service in the most exacting of operating conditions. Europipe GmbH was founded in 1991 by combining the experience and competences in the field of plate rolling and large-diameter pipe production of two of the pioneers of the steel industry, AG der Dillinger Hüt- tenwerke and Mannesmannröhren-Werke AG. The Europipe group manufactures longitudinally and helical- ly welded large diameter pipes in a wide range of diameters and wall thicknesses, in lengths of up to 18.3m (SAWL) or 24m (SAWH). More than half of the steps in Europipe’s manufacturing chain relate to quality control and testing, and the group operates a policy of continual investment in the latest technology to ensure that its rigorous quality standards continue to be met. Non-destructive testing is an area of particular investment and the concept of the new testing machine was developed and designed in close cooperation between Europipe, as an expe- rienced user, and GE’s Inspection Technologies business, as a qualified manufacturer of ultrasonic testing machines to meet all demands regarding accuracy, reliability and speed in the existing infrastructure of the mill. The ultrasonic testing machine represents the latest technology for inspecting submerged arc welded (SAW) pipes. It features several ultrasonic probe configurations to meet most international standards and NDT specifications by applying suitable testing technologies, such as pulse-echo, through transmission and tandem technology, as well as testing on bead and beside the weld. As an additional feature, phased array technology can be used for trials and special testing tasks. In operation, the corresponding probe holders are moved along the pipe under inspection in a carriage, which provides precise positional control, using GE’s field-proven electronics platform both for driving the ultrasonics and acquiring and displaying the inspection data. Twenty inspection channels are available to provide comprehensive coverage for the inspection of longitudinal and transverse flaws in the seam weld and for lamination type flaws in the heat-affected zone. The inspection extends up to the pipe extremities. Email: sales@omsmeasure.com Website: www.omsmeasure.com - - - - - - - - - - - - - - - -

GE’s Inspection Technologies business offers a comprehensive range of tube and pipe ultrasonic inspec-