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Technical Discussions
Zeki Cosku Gokce
Zeki Cosku Gokce
04:48 Oct-31-2005
Ultrasonic inspection of as-cast products

What is the best wavemode, frequency, sensor diameter to look for longitudinal cracks and shroud porosity on as-cast products such as slabs and billets from a steel mill? we are trying to inspect a 150mm square billet but cannot see the backwall reflection (there seems to be a lot of scattering). Any ideas?


 
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A.A.AMIRI
Consultant, NDT/QC/WELD INSPECTION
Iran, Joined Nov 2005, 20

A.A.AMIRI

Consultant, NDT/QC/WELD INSPECTION
Iran,
Joined Nov 2005
20
05:38 Nov-01-2005
Re: Ultrasonic inspection of as-cast products
----------- Start Original Message -----------
DEAR FRIEND,
I THINK FOR YOUR TEST CONDITION,NORMAL PROBE WITH OVER 24mm.Dia.(LONGITUDINAL WAVE),0.25-1 MHZ FREQUENCY IS
WELL.YOU CAN ON-REGECT SWITCH FOR OMITTED OR DECREASE NOISE ON DISPLAY(CRT/LCD).HIGH DAMP PROBE MAY HELP YOU
FOR PREVENT OF NOISE EFFECTS.


 
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