TPT July 2011

偿等作为标准特征。 该系统利用Meta最新推出的智能激光传感器(SLS)技术。在以以太网骨干网和Meta的新的、灵活的 以太网IO板为基础更新的VistaWeld构架内，装有一台高分辨率、高性能SLS传感头。这一结合使其 能够包括一些想要的特性，同时能降低系统复杂性并且更便于使用。 TruRoot跟踪发现外径埋弧焊实际的焊缝根部，即使根部有可能被电焊覆盖。该软件采用高分辨率 和高质量SLS传感器，以及来自Meta的著名的多道次焊接系统图像分析算法，能检测焊缝底部电焊 的边缘。 根据这个和整个焊缝轮廓，能计算出真正的根部位置。跟踪用这种方法推断出的实际根部能提高外 径焊焊接本身的焊透性同时提高内径和外径焊接熔接。 直缝焊管轧机上的外径埋弧焊通常使用多焊炬配置，在一个焊池内多达五到六个焊条焊接。考虑到 所需焊炬数量和需要焊剂输送和回收，因此焊接头很大。这样，激光传感器必须放置在距离焊接区 前面最远的地方。这个所谓的视距可以为250毫米或以上。根据管道形状，如果使用简单的算法， 可能会导致跟踪偏差。在新的VistaWeld内的标准跟踪使用视距、焊接速度和其他信息来为沿管道所 有点的焊接头确定精确的位置。这对如果管道成型方法引起几何失真来说特别有益，这是常有的情 形。 在一些了直缝管道上的测试说明，在某些情况下，视距跟踪比传统跟踪精确4倍多，通过提高焊接质 量和最小化缺陷大大提高了生产。 例如,良好的垂直跟踪精度能维持整个管道长度恰当的外伸长度（从触尖到工件的距离），提高焊接 质量，消除焊接缺陷。在水平轴跟踪精度上的改善与TruRoot特征很好的结合，从而实现了双倍精 度效益。 Meta Vision Systems Ltd – 英国 Fax: +441865 887901. Email: sales@meta-mvs.com Web: www.meta-mvs.com - - - - - Pipe cutting and beveling innovations at Tube Russia PRESTIGE Industrial Pipework Equipment (PIPE) Ltd, established in 1989, is a specialist supplier of pipework fabrication cutting and bevelling equipment. The company caters for any cutting and bevelling requirements, whether cold or hot cutting, for workshop or on-site environments. Two of the company’s most popular machine ranges are the split frame cutting and bevelling ma- chines: the heavy duty steel frame ‘supercutter’ and the light-weight alloy body ‘MCA Clamshell’. The machines are designed for the cold cutting and bevelling of pipe, where the use of a hot cutting method is prohibited or a machined bevel is required. The split frame design enables the operator to mount the machine anywhere along a pipeline to cut and bevel the pipe simultaneously. Suitable for on-site work or in areas where there is restricted access to the pipe, due to their low profile design, once clamped on the pipe, the cut and bevel is produced by an inner rotating ring, housing cutting tools mounted in spring loaded toolboxes that follow the contour of the pipe to produce an accurate weld preparation. Cutting tools are available to machine mild steel, stainless steel and exotic materials such as duplex and super-duplex. Machines are available with electric, pneumatic or hydraulic motors, with models available to cut from 1” to 60” pipe (larger sizes made to order), with all types of weld preparation achievable on wall thicknesses up to 60mm. Other equipment that Pipe Ltd will have on show will include its extensive range of pipe jack stands and supports, pipe welding alignment clamps, and specialist pipe purging equipment.