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 -
1712 views
Technical Discussions
Dhiliban
Other, QA/QC engineer
L&T HCP, India, Joined May 2016, 16

Dhiliban

Other, QA/QC engineer
L&T HCP,
India,
Joined May 2016
16
10:11 May-31-2016
RT technique for

We have welded an Sweepolet with a 24inch dia pipe,i want to do RT for the joint,there is no access to place the flim inside since the pipeline is completed.

What technique should i use to get the maximum possible flim sensitivity

 
 Reply 
 
Amritpal Singh
Engineering, ASNT Level III RT, UT, MT, PT, VT
JGC, Japan, Joined Jun 2013, 32

Amritpal Singh

Engineering, ASNT Level III RT, UT, MT, PT, VT
JGC,
Japan,
Joined Jun 2013
32
10:28 May-31-2016
Re: RT technique for
In Reply to Dhiliban at 10:11 May-31-2016 (Opening).

What about the DWSI tech. Is it not possible?

 
 Reply 
 
Dhiliban
Other, QA/QC engineer
L&T HCP, India, Joined May 2016, 16

Dhiliban

Other, QA/QC engineer
L&T HCP,
India,
Joined May 2016
16
19:07 May-31-2016
Re: RT technique for
In Reply to Amritpal Singh at 10:28 May-31-2016 .

Thanks for your reply

Currently we tried DWSI but the contrast is low and unable to define the indications

 
 Reply 
 
N B Rengaraju
NDT Inspector, NDT Level-III/Radiation Safety Officer(RSO)
Marine and Heavy Engineering Company, MALAYSIA., India, Joined Sep 2014, 106

N B Rengaraju

NDT Inspector, NDT Level-III/Radiation Safety Officer(RSO)
Marine and Heavy Engineering Company, MALAYSIA.,
India,
Joined Sep 2014
106
10:21 Jun-01-2016
Re: RT technique for
In Reply to Dhiliban at 19:07 May-31-2016 .

You can try using a more slow or ultra fine grain film than the one which you have used so far. Also, see if back-scattering effect is their in the location and try to reduce the same with lead sheets behind the film cassette.

 
 Reply 
 
J Wallis
NDT Inspector, -
Netherlands, Joined Feb 2010, 626

J Wallis

NDT Inspector, -
Netherlands,
Joined Feb 2010
626
18:14 Jun-01-2016
Re: RT technique for
In Reply to Dhiliban at 19:07 May-31-2016 .

I don't understand why DWSI produces unnacceptable results. The technique is really just the same as radiographing a butt weld. Are you placing the film in direct contact with the weld or is there some sort of increased objet - film distance? What is the wall thickness of the 24"pipe, maybe this is excessive.

 
 Reply 
 
Dhiliban
Other, QA/QC engineer
L&T HCP, India, Joined May 2016, 16

Dhiliban

Other, QA/QC engineer
L&T HCP,
India,
Joined May 2016
16
10:16 Jun-02-2016
Re: RT technique for
In Reply to J Wallis at 18:14 Jun-01-2016 .

Yes Mr.J Wallis,as you said the object to flim distance is 100mm,since the penumbera is masking the observations in the weld area,

Behalf of the gemorty of the component we are not able to place the film in contact with weld

 
 Reply 
 
Amritpal Singh
Engineering, ASNT Level III RT, UT, MT, PT, VT
JGC, Japan, Joined Jun 2013, 32

Amritpal Singh

Engineering, ASNT Level III RT, UT, MT, PT, VT
JGC,
Japan,
Joined Jun 2013
32
12:22 Jun-02-2016
Re: RT technique for
In Reply to Dhiliban at 10:16 Jun-02-2016 .

Please post the photo of the object

 
 Reply 
 
shane feder
, Quality Co-ordinator (SubSea)
Thailand, Joined Dec 2014, 89

shane feder

, Quality Co-ordinator (SubSea)
Thailand,
Joined Dec 2014
89
01:47 Jun-03-2016
Re: RT technique for
In Reply to Amritpal Singh at 12:22 Jun-02-2016 .

I also would be interested in a photo.
I have recently completed a project (Sub-sea manifolds) and we had approx. 80 sweepolets ranging from 10" to 36" with no problem performing RT on any of them.
Regards,
Shane

 
 Reply 
 

Product Spotlight

Ultrasonic Testing Immersion Tanks with Unmatched Scanning Features

TecScan’s non-destructive testing Ultrasonic Immersion Tanks & scanners are designed for high pe
...
rformance and demanding NDT testing applications. Our Scan3D™ line of High Precision Immersion Tanks are specifically designed for automated ultrasonic testing of complex composites parts used in aerospace and industrial applications.
>

NDTkit RT

NDTkit RT, TESTIA's Digital Radiography software The NDTkit product line software for X-ray analysi
...
s. NDTkit RT is a software benefiting from the Ultis kernel which is dedicated to radiographic image analysis. It offers a set of tools and filtering processes to assist RT operators in finding relevant flaws.
>

CIVA 2020 UT Module

CIVA NDE Simulation Software is the world leader of NDT Simulation. The UT simulation Module incl
...
udes: - "Beam computation": Beam propagation simulation - "Inspection Simulation": Beam interaction with flaws or specimens The user can simulate a whole inspection process (pulse echo, tandem or TOFD) with a wide range of probes (conventional, Phased- arrays or EMAT), components, and flaws.
>

ISAFE3 Intrinsically Safe Sensor System

ISAFE3 intrinsically safe sensor system of Vallen Systeme is especially targeted at the petrochemica
...
l - as well as oil and gas transportation industry. The sensor system is designed for permanent monitoring or periodic inspection tasks. Sensors are available for different AE-frequency ranges optimized for corrosion and fatigue crack detection and other applications. The ISAFE 3 sensor system consists of an AE-sensor (model ISAS3) certified according to ATEX/IEC for installation in zone 0, gas group IIC, IP68, 20 to +60 °C, and a signal isolator (model SISO3) certified for installation in zone 2. An ISAS3 sensor can be mounted in atmosphere or submerged, e.g. in water or crude oil. It is supported by mounting tools for temporary (magnets) or permanent (welded) installation. ISAFE3 supports automatic sensor coupling test and can be used with any AE signal processor supporting 28V supply at 90 mA peak, e.g. Vallen Systeme ASIP-2/A.
>

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