where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

581 views
Technical Discussions
Rudolf Chyla
R & D, NDT
Railways of the Slovak Republic (ZSR), Slovak Republic, Joined Nov 2000, 1

Rudolf Chyla

R & D, NDT
Railways of the Slovak Republic (ZSR),
Slovak Republic,
Joined Nov 2000
1
18:05 May-19-2009
PA testing thermit weld of rails

Has anyone had any success with testing thermit weld of rails using phased array?

    
 
 
Joe Buckley
Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT, United Kingdom, Joined Oct 1999, 519

Joe Buckley

Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT,
United Kingdom,
Joined Oct 1999
519
08:30 May-20-2009
Re: PA testing thermit weld of rails
In Reply to Rudolf Chyla at 18:05 May-19-2009 (Opening).

zoom image


Above was at 2MHz (keyboard sticky)

I did some trials on this about 4 years ago, Usuing a MHz, 24 Element transducer

Found that
1) The 'noise image' from a good weld was clearly distinguishable
2) Side drilled holes around 3mm gacve a good response.

So it all looked very encouraging. Unfortunately we never persuaded any of the Railways to buy one, So it never got seriously field tried, and there was not opportunity to find defects with the technique.

attached overlay image should give some idea.
    
 
 

Product Spotlight

I&T Nardoni

NDT, RESEARCH AND DEVELOPMENT OF NEW METHODOLOGY, TRAINING CENTER I&T NARDON INSTITUTE was idiated
...
in 1988 by Giuseppe Nardoni, now president and owner of the company, based on his multi-annual and international experience in the field of NDT.
>

SONOAIR - air-coupled Phased Array Ultrasonic Inspection System

For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>

High-end Ultrasonic Flaw Detector with 32:128PR PAUT and 2-ch TOFD: SyncScan 2

SIUI’s newly launched SyncScan 2, is a high-end ultrasonic flaw detector with 32:128PR PAUT and
...
2-ch TOFD, which can maximize your efficiency for PA and TOFD. ● Support PA/TOFD/UT ● 32-ch PA is more suitable for inspection on extra-thick wall and high-attenuation material. ● 32-ch PA and 2-ch TOFD work simultaneously. ● Support PR mode for corrosion inspection.
>

Magnetic X-Ray Pipeline Crawler

Zhong Yi brand pipeline crawler is magnetic/micro-video controlled crawler with DC X ray unit inst
...
alled for checking welding of pipeline. Move steadily inside the pipeline 6''-60''diameter with speed of up to 18m/min, Max. moving diatance 5 kilometers and provide the efficient inspection of the pipeline.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window