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 -

Materials Research Institute
Consulting to the NDT industry.

772 views
Technical Discussions
Nick Welland
Nick Welland
03:23 Dec-01-2005
RT of round bar

I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?

Any help would be appreciated.

BestRegards,
Nick


    
 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
00:56 Dec-03-2005
Re: RT of round bar
Dear Nick,

The curvature of the bar has to be corrected using correction blocks so that the thickness across the weld remains uniform. For that thickness, either a very high voltage x-ray source or Ir-192 source is needed. You may need multiple exposures with the bar being rotated by 90 or 120 degrees. I have not done it but it should be possible. Pl. make an artificial defect standard in the bar and try it out.

Best wishes.

S.V.Swamy

----------- Start Original Message -----------
: I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?
: Any help would be appreciated.
: BestRegards,
: Nick
------------ End Original Message ------------




    
 
 
David Hermanutz
Consultant,
Hbndt.com, China, Joined Jul 2012, 85

David Hermanutz

Consultant,
Hbndt.com,
China,
Joined Jul 2012
85
05:33 Mar-05-2006
Re: RT of round bar
Hi Nick,

I thought you were a UT hand? I'm taking my RT 2 this week and I'll use it for some math problems and then try it out... don't know how many times I'll need to shoot it but I'm sure it'll be plenty.

DH


----------- Start Original Message -----------
: I know this is one of the old theoretical problems, but has anyone successfully radiographed, under field conditions, a 75 mm diameter steel round bar, for weld defects?
: Any help would be appreciated.
: BestRegards,
: Nick
------------ End Original Message ------------




    
 
 

Product Spotlight

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

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.
>

High Resolution Industrial CT System for Small/Medium Size Parts Inspection - YXLON FF35 CT

The YXLON FF35 CT computed tomography system is designed to achieve extremely precise inspection r
...
esults for a wide range of applications. Available in a single or dual tube configuration, it is perfect for very small to medium size parts inspection in the automotive, electronics, aviation, and material science industries.
>

EKOSCAN Phased Array

In order to always fit your needs, EKOSCAN can manufacture any type of UT transducer, either convent
...
ional or Phased Array. As an ISO 9001: 2015 certified company, EKOSCAN is extremely careful as far a material selection and manufacturing processes are concerned. Our probes guarantee our customers the benefits of latest innovations regarding piezo-composite, backing, impedance adaptation layer, etc. Specific probes for hostile environment: high temperature, high pressure, corrosive environment,etc. Specific probes designed to fit your specific application: optimization of every parameter to guarantee you the best detection.
>

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