METHOD OF DETERMINING THERMAL STABILITY OF LUBRICATING OIL

FIELD: investigating and analyzing of materials. ^ SUBSTANCE: method includes sampling lubricating oil to be investigated, separating the sample into two samples, heating the samples, and mixing the samples without air access during at least three hours. For each subsequent sample the temperature is...

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Bibliographische Detailangaben
Hauptverfasser:	KOVAL'SKIJ B.I, VASIL'EV S.I, KOVAL'SKIJ S.B
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	FIELD: investigating and analyzing of materials. ^ SUBSTANCE: method includes sampling lubricating oil to be investigated, separating the sample into two samples, heating the samples, and mixing the samples without air access during at least three hours. For each subsequent sample the temperature is heightened by a constant value and, then, light absorption coefficient, viscosity, coefficient of energy condition are determined, the samples are centrifuged and the characteristics are determined again. The thermal stability is determined from these values before and after centrifuging the samples. ^ EFFECT: enhanced reliability. ^ 3 dwg