Phased Array Ultrasonic Testing of Welded Joints in Plastic (PE) Pipes

{تخصصی بازرسی فنی}--12 صفحه--محصول 2012--لینک دانلود رایگان-->>

http://uploadboy.me/zbqt1an8azun/Phased Array Ultrasonic Testing of Welded Joints in Plastic Pipes.zip

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Abstract
A reliable Non-Destructive Testing approach is required for the inspection of polyethylene (PE) butt fusion
joints in various material grades and pipe sizes. The nature of butt fusion joints is that the fusion zone is
relatively small and the inspection solutions are often restricted by the existence of an external weld bead. This
weld bead restricts the probe placement and the probe needs to be positioned in a non-optimal position for the
weld inspection. The PE material grades have low velocity and high frequency dependent attenuation, which will
complicate the inspection of thicker pipes. In this paper, phased array ultrasonic techniques are presented and
their capabilities are evaluated. The techniques utilise customised water wedges to be able to generate forward
angle beams to cover the weld within the PE pipe. Techniques have been developed for pipes with outer
diameters between 220-710mm and thicknesses between 14-45mm. Probe and wedge parameters have been
optimised for this range of pipes. The capability of detecting circular defects with diameters between 1.5-8mm
on pipes with an outer diameter between 220-710mm using a phased array ultrasonic inspection solution, and the
challenges overcome when working with this type of material, are presented.

اسلایدهای دوره آموزشی پیشرفته آشنایی با آزمونهای غیرمخرب

تعداد اسلایدها: 72

روشهای نوین AUT، PAUT, TOFD

Weld Inspection and Repair

{عمومی بازرسی فنی}--10 صفحه--

Introduction
Quality control is used throughout the welding
industry to monitor the quality of the items produced.
All manufactured items are made to specifications.
Inspections must be made during and after the manufacturing
cycle to ensure that parts meet the requirements
of the specifications. The American Welding Society has
increased the requirements for a CWI (certified welding
inspector) certificate to ensure that certificate recipients
are capable of performing quality control. Quality control
is not only important to ensure quality parts but also
to ensure that the correct procedures are performed as
efficiently as possible. The use of proper quality control
measures help make a company as strong as possible in
an increasingly competitive industry.

جزوه روش های مختلف تست های غیر مخرب (NDT) با فرمت ورد - 361 صفحه فایل ورد و قابل ویرایش

جزوه روش های مختلف تست های غیر مخرب (NDT) با فرمت ورد

361 صفحه فایل ورد و قابل ویرایش

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