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Analytical Ferrography

Analytical Ferrography Test

Allows analyst to visually examine wear particles present in a sample.

Operating Principle

To create a ferrogram, a sample of oil is passed over a glass slide. The slide rests on a magnetic plate that attracts ferrous wear particles in the oil onto the surface of the slide. The ferrous wear particles line up in rows with the largest particles forming rows at the top of the ferrogram. Non-ferrous particles are easily detected because they deposit randomly across the slide.

Significance

A trained analyst visually determines the type and severity of wear deposited onto the substrate by using a high magnification microscope. The particles are readily identified and classified according to size, shape and metallurgy.

Applications

Best used when other test methods indicate possible problems.

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Insight Services, Inc.  •  20338 Progress Drive  •  Cleveland, OH 44149  •  Phone: 216-251-2510  •  Fax: 216-251-2515
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