Method of measurement of abnormal wear debris and particulate contamination in machine components by oil analysis
AssigneeEnergy Resources of Australia Ltd.
InventorsHenry J. Russell, Brenton P. Hill
Life of this patent
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Abstract
A method of measurement of abnormal wear debris and particulate contamination in machine components by oil analysis comprising the steps of: passing oil through a filter of selected pore size such that the filter entraps most larger abnormal wear particles and excludes most smaller normal wear particles; placing the filter in an x-ray spectrometer; and converting the measured x-ray intensities of the particles trapped in the filter to a quantitative value indicating the species and concentration of abnormal wear particles and contamination particles in the oil.
Claims5
A method of measuring abnormal wear of machine components by oil analysis comprising the steps:
- taking a sample of a predetermined amount of the oil from the machine and placing it in a closable container;
- re-suspending particles within said oil sample by applying ultrasonic vibrations to said bottle followed by vigorous agitation of said container;
- withdrawing a subsample from said container;
- passing said subsample through a filter of selected pore size;
- removing any remaining oil from said filter by applying solvents;
- drying said filter;
- mounting said filter on a transparent slide;
- clarifying said filter using a reagent;
- analysing said slide using x-ray spectrometer;
- and
- further analyzing said filter using filtergram microscopy.
Dependencies are inferred from the claim text.