Ketos ring
The test ring specimen is a tool used in evaluating and comparing the overall performance and sensitivity of both dry and wet, fluorescent and nonfluorescent magnetic particle techniques using a central conductor magnetization technique. It is fabricated from AISI 01 tool steel cut from annealed ... View full product description
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Description
The test ring specimen is a tool used in evaluating and comparing the overall performance and sensitivity of both dry and wet, fluorescent and nonfluorescent magnetic particle techniques using a central conductor magnetization technique.
It is fabricated from AISI 01 tool steel cut from annealed round stock; its hardness is in the hardness range of 90 to 95 HRB.
The overall performance and sensitivity of the magnetic particle system is tested with the test ring specimen by using circular magnetization applied by D.C. current through a central conductor and the leakage fields appear, decreasing as the distance from the hole to the ring edge increases. When the magnetic suspension is applied on the ring, magnetic powder accumulates on the ring edge over the cylindrical holes, forming indication lines.
The number of indications formed on the outer rim of the ring will indicate the relative sensitivity of the system in use. If the prescribed number of indications cannot be detected, the magnetic particles, suspension, magnetizing techniques, or magnetizing equipment, or combination thereof, must be checked and corrected as required.
