MPI with Permanent Magnets

Kareem Sheikh

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Dec 3, 2015, 11:17:06 PM12/3/15

to Materials & Welding

Good day,

could you please advise can we do the MPI wet method with permanent magnets (Horse shoe) for 1.5 inch pipe.

if can please provide me the references.

your valuable and immediate response will be highly appriciated.

Thanks & Best Regards,

Kareem.

mike ball

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Dec 5, 2015, 4:04:46 AM12/5/15

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NO...due to XX thick material will absorb limited flux density of magnetic and create poor sensitivity. Use AC/DC stilt magnet at 75mm max distance between poles, wet method oil based medium continuous technique
See ASTM listing for ref.standard.

Mike henthorn
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From: 'Kareem Sheikh' via Materials & Welding <material...@googlegroups.com>;
To: Materials & Welding <material...@googlegroups.com>;
Subject: [MW:23943] MPI with Permanent Magnets
Sent: Thu, Dec 3, 2015 2:33:13 PM

Ibrahim Kodssi

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Dec 6, 2015, 10:36:21 PM12/6/15

to Materials & Welding

Your concern on reliability and sensitivity of results is very important. What is the minimum thickness/diameter for which permanent magnet can provide reliable with reasonable sensitivity results?

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