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AT -Automation Technology is a systems house for industrial image processing. AT offers thermographic ndt systems as well as high-speed 3D sensors.

998 views
02:26 Nov-29-2001

Trevor Easton

Engineering
Dofasco Inc,
Canada,
Joined Nov 1998
13
UT for laminates

I am looking for a device to detect delamination in a fibre product 0.120" thick
48" wide. Product is moving at 60ft/min on a belt conveyor. Any companies or suggestions?


 
08:58 Nov-30-2001

Godfrey Hands

Engineering,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
284
Re: UT for laminates : I am looking for a device to detect delamination in a fibre product 0.120" thick
: 48" wide. Product is moving at 60ft/min on a belt conveyor. Any companies or suggestions?
.

Trevor,
One possibility that comes to mind is Video Thermography, where a heat pulse (or continuous source) is put on the product, and a thermographic camera evaluates the resultant heat distribution, either on the same side as heat source or opposite side.
Don't know who in your area does this, but web search should help you.

Regards,

Godfrey


 
03:21 Nov-30-2001

Dave Forsyth

R & D
TRI/Austin,
USA,
Joined Nov 2001
41
Re: UT for laminates I would be concerned that the thermal response of the material may not be fast enough, if it is moving on a line at 60ft/second. If that is indeed the case, noncontact ultrasonic methods would seem to be appropriate. Since you are in Canada so I would encourage you to contact my colleagues in Montreal:

Jean-Pierre Monchalin
Group Leader
Process Modelling and Instrumentation, Optical Techniques
Industrial Materials Institute (IMI)
National Research Council Canada (NRC)
75 de Mortagne Blvd.
Boucherville, Quebec, J4B 6Y4
Telephone: (450) 641-5116 Fax: (450) 641-5106
Email: jean-pierre.monchalin@nrc.ca

They are very good at what they do.

Regards, Dave.

: : I am looking for a device to detect delamination in a fibre product 0.120" thick
: : 48" wide. Product is moving at 60ft/min on a belt conveyor. Any companies or suggestions?
: .
.
: Trevor,
: One possibility that comes to mind is Video Thermography,

(snipped)


 
03:33 Nov-30-2001

Joe Buckley

Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT,
United Kingdom,
Joined Oct 1999
512
Re: UT for laminates : I am looking for a device to detect delamination in a fibre product 0.120" thick
: 48" wide. Product is moving at 60ft/min on a belt conveyor. Any companies or suggestions?
.

The speed will limit how complete a test you can manage, but large area delaminations should be detectable with air-coupled UT, using a plate-wave approach. (too fast to C-scan)

I suggest you contact QMI (www.qmi-inc.com) or Airstar (www.airstar1.com)

Rgds
Joe



 
05:39 Dec-03-2001

Randy Plis

Sales, Consultant
AMDATA NDE Technology LLC,
USA,
Joined Oct 1999
23
Re: UT for laminates : : I am looking for a device to detect delamination in a fibre product 0.120" thick
: : 48" wide. Product is moving at 60ft/min on a belt conveyor. Any companies or suggestions?

: Have we established how small of a flaw he is looking for? My recollection is that air scans tend to be used for fairly large diameter flaws.


 


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