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Non-ferrous inclusion detection??
- Thread starter catfaneng
- Start date
Are you interested in surface defects, or subsurface? An infrared camera would only be useful for surface defects, while Eddy Current and Ultrasonic inspection techniques are possibilities for subsurface defects.
Regards,
Cory
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Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
- Thread starter
- #3
catfaneng,
The eddy current method can be used for defect detection in non-ferrous metals. Contact Magnetic Analysis or Foerster for more information on their products:
The eddy current method can be used for defect detection in non-ferrous metals. Contact Magnetic Analysis or Foerster for more information on their products:
catfaneng;
You need to investigate or know what your threshold limit is for inclusion size and geometry. In other words, what is the maximum size you can tolerate in terms of width/length or in some cases maximum inclusion diameter. You need to go into this project knowing that you will not be able to detect all inclusions in an on-line process. So, be prepared to discuss with vendors what your limits need to be for detection of inclusions.
You need to investigate or know what your threshold limit is for inclusion size and geometry. In other words, what is the maximum size you can tolerate in terms of width/length or in some cases maximum inclusion diameter. You need to go into this project knowing that you will not be able to detect all inclusions in an on-line process. So, be prepared to discuss with vendors what your limits need to be for detection of inclusions.
EdStainless
Materials
The IR methods rely on eddy current. You lightly induction heat the material and then look for hot spots. The discontinuities from inclusions will cause greater localized heating.
Yes straight ET will work. It is what we use on SS and Ni alloys. Just because material isn't ferromagnetic does not mean that it does not have magnetic properties.
Surface ET is easy because you can use higher freq and get great sensitivity.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
Yes straight ET will work. It is what we use on SS and Ni alloys. Just because material isn't ferromagnetic does not mean that it does not have magnetic properties.
Surface ET is easy because you can use higher freq and get great sensitivity.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
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